JP7467718B2 - Information processing device, program, and information processing method - Google Patents

Description

The present invention relates to an information processing device, a program, and an information processing method.

The amount of fixed property tax is calculated by multiplying the tax base amount by a specified tax rate. Conventionally, a device has been disclosed that automatically calculates the amount of fixed property tax by multiplying the tax base amount stored in advance in a storage medium by the tax rate corresponding to the city, ward, town, or village (see, for example, Patent Document 1).

JP 2006-107175 A

By using a conventional device that automatically calculates the amount of fixed property tax, the amount of fixed property tax levied on land fixed assets can be easily calculated. If the pre-stored tax base amount is an accurate value, the amount of fixed property tax can be accurately calculated based on that tax base amount. Here, the tax base amount is the taxable amount that is the basis for calculating the tax amount, and is calculated by multiplying the land appraisal value, the special rate, and the rate based on the burden level.

When calculating the tax base amount, the city, ward, town or village office obtains assessment information (e.g., route information, parcel information, land use information and land area information) that indicates the land's valuation prepared by real estate appraisers and surveying companies, etc., and inputs the obtained assessment information into a tax base amount management device that manages the tax base amount. The tax base amount management device then calculates the tax base amount for each parcel number by multiplying the land's assessment amount, which is determined based on the land use, land area, route value and land use measurement results, by a numerical value based on the special rate and burden level, etc.

However, information on land changes, such as information on changes in land use, information on transfer of ownership, information on land division and consolidation, and assessment information, were input into the tax base management device by employees. Therefore, there were cases where errors occurred in the parcel information and assessment information related to changes in land use, land area, etc., used to calculate the tax base amount in the tax base management device, and there were also cases where errors occurred in the tax base amount calculated based on the erroneous change information and assessment information.

Therefore, the present invention has been made in consideration of these points, and aims to provide an information processing device, a program, and an information processing method that can easily verify whether or not an error has occurred in the stroke information .

In a first aspect of the present invention, a tax base amount verification device is provided that includes: an acquisition unit that acquires land lot information indicating the land lot number of a parcel and a plurality of first land lot information used to calculate the tax base amount of the parcel corresponding to the land lot number; a storage control unit that associates the land lot information with the plurality of first land lot information and stores them in a storage unit; a calculation unit that calculates a first tax base amount based on at least one of the plurality of first land lot information for each parcel number corresponding to the land lot information; a receiving unit that receives land lot identification information for identifying the land lot number of a parcel and a second tax base amount associated with the land lot identification information from an external device; a determination unit that determines whether the second tax base amount acquired by the receiving unit matches the first tax base amount associated with the land lot information that is the same as the land lot identification information associated with the second tax base amount; and an output unit that, when it is determined by the determination unit that the first tax base amount and the second tax base amount do not match, outputs discrepancy information indicating that the first tax base amount and the second tax base amount do not match, in association with the land lot information.

For example, the receiving unit further receives from the external device at least one of the multiple second stroke information used in calculating the second tax base amount associated with the land address identification information, and the determining unit determines whether the second stroke information received by the receiving unit matches at least one of the multiple first stroke information associated with the same land address information as the land address identification information associated with the second stroke information, and when it is determined that at least one of the first stroke information matches the second stroke information, it determines whether the first tax base amount matches the second tax base amount, and when it is determined by the determining unit that at least one of the first stroke information does not match the second stroke information, the output unit outputs mismatch information indicating that at least one of the first stroke information does not match the second stroke information.

The acquisition unit may acquire, as the first parcel information, at least one of land use information indicating the land use of the parcel, land area information indicating the area of the parcel, unit price information indicating the price per unit area of the parcel, owner information indicating the owner of the parcel, situation similarity information indicating the area to which the parcel belongs, and plot information indicating the usage pattern and shape of the parcel, in association with the parcel address information.

The memory control unit stores the plurality of first parcel information, each of which has been independently updated in association with the land address information, in the memory unit in association with the date of update, and the acquisition unit further acquires calculation date designation information that designates the calculation date of the first tax base amount, and when the acquisition unit acquires the calculation date designation information, the calculation unit may calculate the first tax base amount based on at least one of the plurality of first parcel information that was updated on a date prior to and closest to the calculation date.

The memory control unit stores the plurality of first parcel information, each of which is independently updated, in the memory unit in association with the land address information, the calculation unit calculates the plurality of first tax base amounts based on at least one of the plurality of first parcel information, and the output unit may output the first parcel information used to calculate the first tax base amount that matches the second tax base amount among the plurality of first tax base amounts when the determination unit determines that the second tax base amount does not match the first tax base amount calculated based on at least one of the plurality of first parcel information updated on the day prior to the calculation date of the second tax base amount and closest to the calculation date.

The above-mentioned tax base amount verification device further includes a difference detection unit that detects a difference between the first parcel information stored in the memory unit in association with the parcel number information and the updated parcel information when the acquisition unit acquires updated parcel information that is newer than the first parcel information stored in the memory unit in association with the parcel number information, and when the receiving unit receives the second tax base amount, the calculation unit calculates the first tax base amount based on the updated parcel information corresponding to the difference detected by the difference detection unit, and the output unit outputs the updated parcel information corresponding to the difference detected by the difference detection unit and the first tax base amount calculated by the calculation unit.

According to a second aspect of the present invention, a tax base amount verification program is provided that causes a computer to function as an acquisition unit that acquires land lot information indicating the land lot number of a parcel and a plurality of first land lot information used to calculate the tax base amount of the parcel corresponding to the land lot number, a storage control unit that associates the land lot information with the plurality of first land lot information and stores them in a storage unit, a calculation unit that calculates a first tax base amount based on at least one of the plurality of first land lot information for each parcel number corresponding to the land lot information, a receiving unit that receives land lot information for identifying the land lot number of a parcel and a second tax base amount associated with the land lot information from an external device, a determination unit that determines whether the second tax base amount acquired by the receiving unit matches the first tax base amount associated with the land lot information that is the same as the land lot information associated with the second tax base amount, and an output unit that, when it is determined by the determination unit that the first tax base amount and the second tax base amount do not match, outputs discrepancy information indicating that the first tax base amount and the second tax base amount do not match, in association with the land lot information.

According to a third aspect of the present invention, there is provided a tax base verification system including a tax base verification device that calculates a tax base amount and a tax base management device that manages the tax base amount in association with a parcel number, the tax base verification device including a verification device acquisition unit that acquires parcel number information indicating a parcel number of a parcel and a plurality of first parcel information used to calculate the tax base amount of the parcel corresponding to the parcel number, a storage control unit that associates the parcel number information with the plurality of first parcel information and stores them in a storage unit, a calculation unit that calculates a first tax base amount based on at least one of the plurality of first parcel information for each parcel number corresponding to the parcel number information, a receiving unit that receives from the tax base management device parcel number identification information for identifying the parcel number of the parcel and a second tax base amount associated with the parcel number identification information, and a second tax base amount acquired by the receiving unit and the first tax base amount associated with the parcel number information that is the same as the parcel number identification information associated with the second tax base amount are the same. The tax base verification system includes a determination unit that determines whether the first tax base amount and the second tax base amount match, and an output unit that outputs discrepancy information indicating that the first tax base amount and the second tax base amount do not match, in association with the parcel number information and the first tax base amount, when the determination unit determines that the first tax base amount and the second tax base amount do not match. The tax base amount management device includes a management device storage unit that stores parcel number identification information for identifying the parcel number of a parcel and the second tax base amount associated with the parcel number identification information, a management device transmission unit that transmits the second tax base amount to the tax base amount verification device, a management device acquisition unit that acquires the parcel number information, the first tax base amount, and the discrepancy information output by the tax base amount verification device, and a memory update unit that updates the second tax base amount stored in the management device storage unit in association with the parcel number information to the first tax base amount when the management device acquisition unit acquires the discrepancy information.

The present invention has the effect of making it easy to verify whether an error has occurred in the tax base amount.

FIG. 1 is a diagram illustrating a configuration example of a tax base verification system according to a first embodiment. FIG. 2 is a diagram showing an example of a communication sequence of the tax base verification system according to the first embodiment; FIG. 11 is a diagram showing an operation flowchart of the tax base verification device according to the second embodiment. FIG. 13 is a diagram showing an operation flowchart of the tax base verification device according to the fourth embodiment. FIG. 11 is a diagram showing examples of a plurality of first tax base amounts calculated by a calculation unit. FIG. 13 is a diagram illustrating an example of the configuration of a tax base verification system according to a fifth embodiment. FIG. 13 is a diagram showing an operation flowchart of the tax base verification device according to the fifth embodiment.

First Embodiment
[Example of the configuration of the tax base verification system S]
1 is a diagram showing an example of the configuration of a tax base verification system S according to a first embodiment. The tax base verification system S includes a tax base verification device 1 that calculates a tax base amount, and a tax base management device 2 that manages the tax base amount in association with a land address.

The tax base management device 2 is usually installed in a city, ward, town, or village office, and functions as a core system that manages various information including the tax base in an integrated manner. The tax base management device 2 manages, for example, land information, assessment information, tax information, and registration information. The land information includes land number information indicating the land number of the parcel, land use information indicating the land use of the parcel, land area information indicating the area of the parcel, and owner information indicating the owner of the parcel. The assessment information includes, for example, situation similarity information indicating the area to which the parcel belongs, standard land information indicating that the parcel is a standard land to which the parcel belongs, situation similarity information indicating the area to which the standard land belongs, adjacent route information including the number, price, and situation similarity information indicating the area to which the street belongs to the parcel, and plot information indicating the use type, frontage distance, depth distance, etc. of the parcel. The tax information includes, for example, information indicating special provisions for residential land, land assessment value, tax base amount, and tax amount. The registration information includes information showing the address number, owner, date of transfer acceptance, reason for transfer, registered land use, and registered land area.

The tax base management device 2 stores information that employees input into a dedicated computer. For example, employees of a city, ward, town, or village office input land information, assessment information, tax information, and registration information using the keyboard of a dedicated computer. The tax base management device 2 stores the land information, assessment information, tax information, and registration information input from the dedicated computer, and calculates the tax base amount based on the land information, assessment information, tax information, and registration information. In this specification, the tax base amount calculated by the tax base management device 2 is referred to as the "second tax base amount." In addition, information such as land information, assessment information, tax information, and registration information used by the tax base management device 2 to calculate the second tax base amount is referred to as the "second lot information."

The tax base verification device 1 is composed of a computer capable of communicating with the tax base management device 2 via a network such as the Internet or a local area network. The tax base verification device 1 acquires land information, assessment information, tax information, and registration information, and calculates the tax base amount. In this specification, the tax base amount calculated by the tax base verification device 1 is referred to as the "first tax base amount." Furthermore, information such as land information, assessment information, tax information, and registration information used by the tax base verification device 1 to calculate the first tax base amount is referred to as the "first parcel information." The tax base verification device 1 checks whether there is an error in the second tax base amount managed by the tax base management device 2 based on the calculated first tax base amount.

The tax base verification device 1 has a control unit 11 , a communication unit 12 , a memory unit 13 , a display unit 14 , and an operation unit 15 .
The control unit 11 is configured by, for example, a CPU. The control unit 11 executes various programs stored in the storage unit 13 to comprehensively control the functions related to the tax base verification device 1.

The communication unit 12 has, for example, a communication interface for transmitting and receiving information with the tax base management device 2. Specifically, when the tax base verification device 1 and the tax base management device 2 are connected to each other via a local area network, the communication unit 12 has a LAN controller.

The storage unit 13 is composed of, for example, a ROM and a RAM. The storage unit 13 stores various programs for operating the tax base verification device 1. The storage unit 13 also stores various information acquired via the communication unit 12 or the operation unit 15, and various information generated by the control unit 11.

The display unit 14 is configured, for example, with a liquid crystal display, an organic EL (Electro-Luminescence) display, etc. The display unit 14 displays characters, figures, etc.
The operation unit 15 is, for example, a keyboard and a mouse, and receives operation input from a user of the tax base verification device 1.

The configuration of the control unit 11 will be described in detail below. The control unit 11 has an acquisition unit 111, a memory control unit 112, a calculation unit 113, a receiving unit 114, a determination unit 115, and an output unit 116. When the control unit 11 executes the tax base verification program stored in the memory unit 13, the control unit 11 functions as the acquisition unit 111, the memory control unit 112, the calculation unit 113, the receiving unit 114, the determination unit 115, and the output unit 116. The tax base verification program may be stored in a storage medium such as a CD-ROM, or may be stored in the storage unit 13 by downloading it from a server via a network.

The acquisition unit 111 acquires land lot information indicating the land lot number of the parcel, and multiple pieces of first parcel information used to calculate the tax base amount of the parcel corresponding to the land lot number. For example, the acquisition unit 111 acquires, in addition to the parcel lot information, land use information, land area information, owner information, similar situation information, standard land information, route information, plot information, various special rates such as the special rate for residential land, and the previous year's tax base amount.

Lot number information is number information such as the oaza name, hamlet name, main number, and branch number that is assigned to each parcel of land by the Legal Affairs Bureau. Land use information is information that indicates the classification of each parcel of land according to its use. Land use information is, for example, text information indicating the use of the land, such as residential land, rice field, farmland, and forest, or numerical information associated with the use of the land. Land area information is information that indicates the area of each parcel. Route information is, for example, information that is published by city, ward, town, or village offices, indicating the standard price per square meter of residential land adjacent to a street as of January 1st of the same year.

The acquisition unit 111 acquires the land address information, land use information, land area information, and owner information, for example, from a land change notice issued by the Legal Affairs Bureau and received via the communication unit 12. The acquisition unit 111 may also acquire the land address information, land use information, land area information, owner information, similar situation information, standard land information, route information, and plot information input by a user of the tax base verification device 1 via the operation unit 15.

The memory control unit 112 associates the land address information with a plurality of first parcel information and stores them in the memory unit 13. For example, the memory control unit 112 associates the land address information, land use information, land area information, owner information, situation similarity information, standard land information, route information, and plot information and stores them in the memory unit 13. Specifically, the memory control unit 112 stores the land use information, land area information, owner information, situation similarity information, standard land information, route information, and plot information in an address of the memory unit 13 assigned to each land address corresponding to the land address information. In addition, the memory control unit 112 associates the first tax base amount calculated by the tax base verification device 1 and the second tax base amount calculated by the tax base management device 2 with the land address information and the parcel number identification information, respectively, and stores them in the memory unit 13.

The calculation unit 113 calculates the first tax base amount for each parcel number corresponding to the parcel number information based on at least one of the multiple first parcel information. For example, the calculation unit 113 calculates the first tax base amount for each parcel number corresponding to the parcel number information based on the land use information, land area information, owner information, situation similarity information, standard land information, route information, plot information, and tax information stored in the storage unit 13. Specifically, the calculation unit 113 calculates the land valuation amount for each parcel number based on the land use information corresponding to the parcel number, the land area information corresponding to the parcel number, the owner information corresponding to the parcel number, situation similarity information corresponding to the parcel number, standard land information corresponding to the parcel number, route information corresponding to the parcel number, and plot information corresponding to the parcel number. The calculation unit 113 calculates the first tax base amount by multiplying the calculated land valuation amount by the special rate set for the parcel number and a rate based on the burden level calculated from the previous year's tax base amount and the land valuation amount.

The receiving unit 114 receives from the tax base management device 2 land lot number identifying information for identifying the land lot number of the parcel, and the second tax base amount associated with the land lot number identifying information. The receiving unit 114 may receive information indicating the date on which the second tax base amount was calculated, along with the second tax base amount. The land lot number identifying information, like the land lot number information, is number information assigned by the Legal Affairs Bureau to each parcel, which is a parcel of land. In this specification, information indicating the land lot number managed in the tax base management device 2 is referred to as "land lot number identifying information."

The determination unit 115 determines whether the second tax base amount acquired by the receiving unit 114 matches the first tax base amount associated with the same land address information as the land address identification information associated with the second tax base amount. Specifically, the determination unit 115 first selects one piece of land address identification information from the multiple pieces of land address identification information received from the tax base amount management device 2, and extracts the second tax base amount associated with the land address identification information and stored in the storage unit 13. Next, the determination unit 115 extracts the first tax base amount associated with land address information indicating the same land address as the land address indicated by the extracted land address identification information and stored in the storage unit 13. Next, the determination unit 115 compares the extracted first tax base amount with the second tax base amount.

The land address specific information and the land address information that are the subject of comparison between the first tax base amount and the second tax base amount do not have to be completely identical information. For example, even if the land address specific information is numerical information in half-width characters and the land address information is numerical information in full-width characters, if it is considered that the land address specific information and the land address information indicate the same land address, the determination unit 115 may consider the land address specific information and the land address information to be identical.

When the determination unit 115 determines that the first tax base amount and the second tax base amount do not match, the output unit 116 outputs mismatch information indicating that the first tax base amount and the second tax base amount do not match, in association with the land address information. The output unit 116 outputs, for example, the land address, the second tax base amount corresponding to the land address, and the first tax base amount corresponding to the land address in a table format to the display unit 14. The output unit 116 may transmit the land address, the second tax base amount corresponding to the land address, and the first tax base amount corresponding to the land address to the tax base amount management device 2 via the communication unit 12.

The following describes an example of the configuration of the tax base management device 2. The tax base management device 2 includes a control unit 21, a communication unit 22, and a storage unit 23. The control unit 21 is configured, for example, by a CPU. The control unit 21 comprehensively controls the functions related to the tax base management device 2 by executing various programs stored in the storage unit 23.

The communication unit 22 has a communication interface for transmitting and receiving information to and from the tax base verification device 1 .
The storage unit 23 is composed of, for example, a ROM and a RAM. The storage unit 23 stores various programs for operating the tax base management device 2. The storage unit 23 also stores land number identifying information for identifying the land number of a parcel, which is input by, for example, a municipal office or a municipal office employee who is a user of the tax base management device 2, and a second tax base amount associated with the land number identifying information.

The control unit 21 has a transmission unit 211, an acquisition unit 212, and a memory update unit 213. The transmission unit 211 transmits the second tax base amount to the tax base verification device 1. For example, the transmission unit 211 transmits the second tax base amount and the land address identification information associated with the second tax base amount and stored in the memory unit 23 in response to an operation by a user of the tax base management device 2 or in response to a request message transmitted from the tax base verification device 1.

The acquisition unit 212 acquires the land address information, the first tax base amount, and the discrepancy information output by the tax base verification device 1. When the acquisition unit 212 acquires the discrepancy information, the memory update unit 213 updates the second tax base amount associated with the land address information and stored in the memory unit 23 to the first tax base amount. For example, when the memory update unit 213 receives a predetermined operation from the user after the discrepancy information and the first tax base amount are displayed to the user of the tax base management device 2, it updates the second tax base amount to the first tax base amount.

[Communication sequence]
2 is a diagram showing an example of a communication sequence of the tax base verification system S according to the first embodiment. When the tax base verification device 1 acquires land number information, land use information, land area information, owner information, situation similarity information, standard land information, route information, plot information, various special exemption rates, and the previous year's tax base amount, it calculates the first tax base amount for each land number corresponding to the land number information (S201). Then, when it receives land number identification information and the second tax base amount from the tax base management device 2, it checks whether the first tax base amount and the second tax base amount corresponding to the land number match for each land number (S202). When the first tax base amount and the second tax base amount do not match, the tax base verification device 1 outputs discrepancy information including information indicating the land number where the first tax base amount and the second tax base amount do not match (S203).

Note that FIG. 2 shows a sequence in which the tax base verification device 1 calculates the first tax base amount and then receives the second tax base amount from the tax base management device 2, but this embodiment is not limited to this sequence. For example, the tax base verification device 1 may calculate the first tax base amount after receiving the second tax base amount from the tax base management device 2.

[Effects of the first embodiment]
As described above, according to the tax base verification device 1 of the first embodiment, when the determination unit 115 determines that the first tax base amount and the second tax base amount do not match, the output unit 116 outputs the mismatch information indicating that the first tax base amount and the second tax base amount do not match in association with the land number information. Therefore, the user of the tax base verification device 1 can easily detect that an error has occurred in the second tax base amount.

Second Embodiment
3 is a diagram showing an operation flowchart of the tax base verification device 1 according to the second embodiment. The tax base verification device 1 in the first embodiment compares the first tax base amount with the second tax base amount when receiving the second tax base amount, but the tax base verification device 1 in the present embodiment compares other information before comparing the first tax base amount with the second tax base amount.

The receiving unit 114 further receives from the tax base amount management device 2 at least one of the multiple second parcel information used to calculate the second tax base amount associated with the parcel number information. The second parcel information is, for example, land use information that identifies the land use of the parcel, land area information that indicates the area of the parcel, owner information that indicates the owner of the parcel, situation similarity information that indicates the area to which the parcel belongs, standard land information that indicates the standard land of the area to which the parcel belongs, route information that indicates the number and price of the street adjacent to the parcel, parcel information that indicates the use type, frontage distance, depth distance, shape, etc. of the parcel, various special rates such as the special rate for residential land, and the previous year's tax base amount.

The determination unit 115 determines whether the second parcel information received by the receiving unit 114 matches at least one of the multiple first parcel information associated with the same parcel information as the parcel number identification information associated with the second parcel information, and if it is determined that at least one of the multiple first parcel information matches the second parcel information, it determines whether the first tax base amount and the second tax base amount match. For example, the determination unit 115 determines whether the land use identification information received by the receiving unit 114 matches land use information associated with the same parcel information as the parcel number identification information associated with the land use identification information, and if it is determined that the land use identification information matches the land use information, it determines whether the first tax base amount and the second tax base amount match.

The determination unit 115 may determine whether the land area identification information received by the receiving unit 114 matches the land area information associated with the same land address information as the land address identification information associated with the land area identification information, and if it is determined that the land area identification information matches the land area information, determine whether the first tax base amount and the second tax base amount match.

When the determination unit 115 determines that at least one of the multiple first stroke information does not match the second stroke information, the output unit 116 outputs mismatch information indicating that at least one of the multiple first stroke information does not match the second stroke information. For example, when the determination unit 115 determines that the land use identification information does not match the land use information, the output unit 116 outputs land use mismatch information indicating that the land use identification information does not match the land use information.

The operation of the tax base verification device 1 according to this embodiment will be described below with reference to FIG.
First, the tax base verification device 1 acquires land lot information and first parcel information (e.g., land use information, land area information, owner information, similar situation information, standard land information, route information, plot information, special rate, and previous year tax base amount) (S301). Next, the tax base verification device 1 calculates the first tax base amount based on the acquired land lot information and at least one of the multiple first parcel information (S302). Next, the tax base verification device 1 receives the land lot identification information, the second parcel information corresponding to the land lot identification information, and the second tax base amount of the land lot from the tax base management device 2 (S303).

Then, the tax base verification device 1 compares at least one of the multiple first parcel information acquired in S301 with at least one of the multiple second parcel information received in S303. For example, the tax base verification device 1 compares the land use information with the land use identification information received from the tax base management device 2 in S303 (S304). If the land use information and the land use identification information match, the process proceeds to S305, where the land area information acquired in S301 is compared with the land area identification information received from the tax base management device 2 in S303 (S305).

If the land area information and the land area identification information match, the process proceeds to S306, where the first tax base amount calculated in S302 is compared with the second tax base amount received in S303 (S306). If the first tax base amount and the second tax base amount match, the tax base amount verification device 1 ends the operation shown in FIG. 3.

If the land use information and the land use specification information do not match in S304, the tax base amount verification device 1 outputs land use mismatch information indicating that the land use information and the land use specification information do not match (S307). When the tax base amount verification device 1 outputs the land use mismatch information, it ends the operation shown in FIG. 3 without matching the land area information with the land area specification information and the first tax base amount with the second tax base amount.

Similarly, if the land area information and the land area identification information do not match in S305, the tax base verification device 1 outputs area discrepancy information indicating that the land area information and the land area identification information do not match (S307). When the tax base verification device 1 outputs the area discrepancy information, it ends the operation shown in FIG. 3 without comparing the first tax base amount and the second tax base amount. If the first tax base amount and the second tax base amount do not match in S306, the tax base verification device 1 outputs discrepancy information indicating that the first tax base amount and the second tax base amount do not match (S307).

In the above explanation, the tax base verification device 1 is described as matching the land use information with the land use identification information in S304, and then matching the land area information with the land use identification information in S305. However, the tax base verification device 1 may match the land use information with the land use identification information after matching the land use information with the land use identification information. In addition, the tax base verification device 1 may only perform either matching the land use information with the land use identification information or matching the land area information with the land use identification information. In other words, the tax base verification device 1 may execute only either S304 or S305.

In addition, before comparing the first and second tax base amounts, the tax base verification device 1 may compare any of the owner information, similar situation information, standard land information, route information, image information, and various special exemption rates acquired in S301 with any of the owner information, similar situation information, standard land information, route information, image information, and various special exemption rates received in S303. If the comparison results in a mismatch, the tax base verification device 1 outputs mismatch information without comparing the first and second tax base amounts.

[Effects of the second embodiment]
As described above, according to the tax base verification device 1 according to the second embodiment, the judgment unit 115 judges whether at least one of the multiple second hand information received by the receiving unit 114 matches at least one of the multiple first hand information associated with the same land address information as the land address identification information associated with the second hand information, and when it is judged that the first hand information and the second hand information match, judges whether the first tax base amount and the second tax base amount match. Therefore, when it is clear that an error has occurred in the second tax base amount without even having to match the first tax base amount and the second tax base amount, there is no need to match the second tax base amount and the first tax base amount, so that the effect of being able to shorten the time of the matching process is achieved. In addition, since not only the matching result between the first tax base amount and the second tax base amount is output, but also the first hand information in which a mismatch has occurred is output, the effect of being able to easily identify the cause of the error when an error has occurred in the second tax base amount calculated in the tax base amount management device 2 is also achieved.

Third Embodiment
In the first embodiment, the information such as land use information, land area information, and owner information managed by the Legal Affairs Bureau was not considered to be updated. In contrast, the tax base amount verification device 1 according to this embodiment is different from the first embodiment in that the first tax base amount and the second tax base amount are compared in consideration of the fact that the land use information, land area information, owner information, situation similarity information, standard land information, route information, plot information, and various special exemption rates are updated, and there are multiple land use information, land area information, owner information, situation similarity information, standard land information, route information, plot information, and various special exemption rates with different update dates.

Specifically, when any of the multiple first parcel information is updated, the acquisition unit 111 acquires the updated first parcel information. The memory control unit 112 associates the multiple first parcel information, which have been independently updated, with the parcel number information and stores them in the memory unit 13 in association with the update date. For example, among the first parcel information, the land use information, land area information, owner information, and plot information are updated daily, the situation similarity information is updated every three years, and the standard land information and route information are updated annually.

The acquisition unit 111 further acquires calculation date designation information that designates the calculation date of the first tax base amount. For example, the acquisition unit 111 acquires information indicating the date on which the second tax base amount was calculated, which is received by the receiving unit 114 from the tax base amount management device 2, as the calculation date designation information. The acquisition unit 111 may acquire information indicating the date and time input by the user of the tax base amount verification device 1 through the operation unit 15, as the calculation date designation information. The acquisition unit 111 may refer to a clock built into the tax base amount verification device 1 and acquire the date and time when an operation to calculate the first tax base amount was accepted from the user of the tax base amount verification device 1, as the calculation date designation information.

The calculation unit 113 calculates the first tax base amount based on at least one of the first parcel information that was updated on the day closest to the calculation date specified by the calculation date designation information among the dates and times when the first parcel information stored in the storage unit 13 was updated. For example, the calculation unit 113 calculates the first tax base amount based on at least one of the land use information, land area information, owner information, situation similarity information, standard land information, route information, parcel information, and various special rates that was updated on the day closest to the calculation date specified by the calculation date designation information among the dates and times when the land use information, land area information, owner information, situation similarity information, standard land information, route information, parcel information, and various special rates stored in the storage unit 13 were updated.

For example, the land use information and land area information are updated on June 1, 2013 and October 1, 2013, and the road information is updated on July 1, 2012 and July 1, 2013. In this case, for example, if the calculation date of the second tax base amount received from the tax base amount management device 2 or the date on which an operation to calculate the first tax base amount was accepted from the user of the tax base amount verification device 1 is June 30, 2013, the calculation unit 113 calculates the first tax base amount based on the land use information and land area information updated on June 1, 2013 and the road information updated on July 1, 2012. If the date on which the first tax base amount indicated by the calculation date designation information should be calculated is October 31, 2013, the calculation unit 113 calculates the first tax base amount based on the land use information and land area information updated on October 1, 2013 and the road information updated on July 1, 2013.

[Effects of the third embodiment]
As described above, according to the third embodiment of the tax base verification device 1, the calculation unit 113 calculates the first tax base amount based on at least one of the multiple first parcel information updated on the day closest to the specified calculation date, so that even if the calculation date of the second tax base amount to be checked for whether it is a correct value changes, the first tax base amount can be calculated based on the same conditions as the conditions on the day the second tax base amount was calculated. Therefore, regardless of the relationship between the date on which the second tax base amount to be judged for the presence or absence of an error was calculated and the date on which the land use information, land area information, and route information were updated, the judgment unit 115 can appropriately judge whether the second tax base amount is correct or not.

Fourth Embodiment
4 is a diagram showing an operation flowchart of the tax base verification device 1 according to the fourth embodiment. In the first embodiment, the tax base verification device 1 calculates one first tax base amount for each parcel number, and outputs discrepancy information when the second tax base amount and the first tax base amount do not match. In contrast, the tax base verification device 1 in this embodiment is different in that it calculates multiple first tax base amounts using first parcel information such as land use information and land area information that differ for each parcel number, and when one first tax base amount does not match the second tax base amount, it searches for a first tax base amount that matches the second tax base amount among the multiple first tax base amounts.

Specifically, the acquisition unit 111 acquires updated information each time the first parcel information, such as land use information, land area information, and route information, is updated (S401). The memory control unit 112 stores the multiple first parcel information, which have been independently updated, in the memory unit 13 in association with the parcel number information. Next, the calculation unit 113 calculates multiple first tax base amounts based on at least a portion of the multiple first parcel information, which have been independently updated (S402). The calculation unit 113 calculates the first tax base amount, for example, each time at least one of the multiple first parcel information is updated. The memory control unit 112 stores the multiple first tax base amounts calculated by the calculation unit 113 in association with the calculation date in the memory unit 13 (S403).

Then, the receiving unit 114 receives the second tax base amount and information indicating the calculation date of the second tax base amount from the tax base amount management device 2 (S404). The determination unit 115 then compares the first tax base amount with the second tax base amount (S405). Specifically, the determination unit 115 compares the first tax base amount calculated by the calculation unit 113 based on at least one of the multiple first handwriting information updated on the day closest to the calculation date of the second tax base amount and before the calculation date of the second tax base amount with the second tax base amount.

If the determination unit 115 determines in S405 that the second tax base amount matches the first tax base amount calculated based on at least one of the multiple first handwriting information updated on the day closest to the calculation date of the second tax base amount before the calculation date of the second tax base amount, the tax base amount verification device 1 ends the operation shown in FIG. 4.

When the determination unit 115 determines that the second tax base amount does not match the first tax base amount calculated based on at least one of the multiple first writing information updated on the nearest day before the day on which the second tax base amount was calculated, the output unit 116 searches for a first tax base amount that matches the second tax base amount received from the tax base amount management device 2 among the multiple first tax base amounts stored in the storage unit 13 (S406), and outputs at least one of the multiple first writing information used to calculate the first tax base amount that matches the second tax base amount (S407). The output unit 116 outputs, for example, first writing information that is different from the first writing information updated on the nearest day before the day on which the second tax base amount was calculated among the multiple first writing information used to calculate the first tax base amount that matches the second tax base amount.

Figure 5 is a diagram showing examples of multiple first tax base amounts calculated by the calculation unit 113 and stored in the memory unit 13. Figure 5 shows the date on which at least one of the land use information, land area information, and road information for a specific land number was updated, the land use, land area, and road value on each update date, and the first tax base amount calculated by the calculation unit 113 based on each land use, land area, and road value.

The tax base amount updated on January 1, 2012 indicates the tax base amount for fiscal year 2012. The tax base amount updated on June 1, 2012 indicates the tax base amount for fiscal year 2013 calculated as of June 1, 2012 due to subdivision. The tax base amount for July 1, 2012 indicates the tax base amount for fiscal year 2013 calculated as of July 1, 2012 due to adjustments made in response to a decline in roadside land values. The tax base amount for October 1, 2012 indicates the tax base amount for fiscal year 2013 calculated as of October 1, 2012 due to a change in land use.

When calculating the first tax base amount on January 1, 2013, the calculation unit 113 calculates the first tax base amount to be 26,880,000 yen based on the information on the previous update date, October 1, 2012. However, if the second tax base amount received by the tax base verification device 1 from the tax base management device 2 is 44,800,000 yen, it is considered that an error has occurred in the second tax base amount.

The output unit 116 then searches for the first tax base amount based on the information updated on July 1, 2012 among the multiple first tax base amounts shown in the table of FIG. 5 to be 44,800,000 yen, and outputs the information "land use = residential land, land area = 200 square meters, roadside land value = 280 (thousand yen)" associated with the update date of July 1, 2012 and stored in the memory unit 13. If there are multiple first tax base amounts equal to the second tax base amount, the output unit 116 outputs information corresponding to each first tax base amount. The output unit 116 may transmit the information to the tax base amount management device 2 via the communication unit 12.

[Effects of the fourth embodiment]
As described above, according to the tax base verification device 1 relating to the fourth embodiment, when the first tax base amount and the second tax base amount do not match, the output unit 116 outputs the land use information, land area information, owner information, similar situation information, standard land information, route information, plot information and various special rates used to calculate the first tax base amount that matches the second tax base amount among the multiple first tax base amounts stored in the memory unit 13, so that a user of the tax base verification device 1 or a user of the tax base management device 2 can easily understand the cause of the error when there is an error in the second tax base amount.

Fifth embodiment
Fig. 6 is a diagram showing a configuration example of the tax base verification system S according to the fifth embodiment. Fig. 7 is a diagram showing an operation flowchart of the tax base verification device 1 according to the fifth embodiment. The tax base verification device 1 shown in Fig. 6 is different from the tax base verification device 1 shown in Fig. 1 in that it further includes a difference detection unit 117, but is the same in other respects.

The difference detection unit 117 detects that there has been a change in the first parcel information, such as land use and land area. Specifically, when the acquisition unit 111 acquires updated parcel information that is newer than the first parcel information stored in the storage unit in association with land number information (S701), the difference detection unit 117 detects a difference between the first parcel information stored in the storage unit in association with the land number information and the updated parcel information (S702).

When the receiving unit 114 receives the second tax base amount, the calculation unit 113 calculates the first tax base amount based on the updated parcel information corresponding to the difference detected by the difference detection unit 117 (S703), and the output unit 116 outputs the land address information associated with the updated parcel information corresponding to the difference detected by the difference detection unit 117 and the first tax base amount calculated by the calculation unit 113 (S704).

The output unit 116 may output the first tax base amount corresponding to the first writing information before the update and the first tax base amount corresponding to the updated writing information after the update. In addition, the output unit 116 may output the information updated within a period designated by the user and the first tax base amount according to the operation of the user of the tax base amount verification device 1 inputted through the operation unit 15. The output unit 116 may transmit the updated writing information and the first tax base amount to the tax base amount management device 2.

[Effects of the fifth embodiment]
As described above, according to the tax base verification device 1 of the fifth embodiment, when at least one of the first parcel information such as land use information and land area information is updated, the output unit 116 outputs the difference before and after the update and the first tax base amount after the update, so that the user of the tax base verification device 1 can easily understand the contents of the change of the parcel such as land use and land area. In addition, by referring to the information output by the output unit 116, the user of the tax base management device 2 can easily check the tax base amount of the parcel where the change occurred.

Sixth embodiment
[Detect errors in land area information]
In the above embodiment, the tax base verification device 1 compares the first tax base amount with the second tax base amount on the premise that there is no error in the land area information acquired by the acquisition unit 111. However, in order to improve the accuracy of the first tax base amount, the tax base verification device 1 may determine whether there is an error in the land area information by the following method.

First, the calculation unit 113 calculates the total land area of the parcels included in the specified area on the reference date (hereinafter referred to as the "specified area reference area"), and the memory control unit 112 stores the specified area for each specified area in the memory unit 13. The reference date may be set arbitrarily, and is, for example, the date on which it is confirmed that there are no errors in the land use information and land area information.

When the receiving unit 114 receives the second tax base amount from the tax base amount management device 2, the calculation unit 113 calculates the area of the specified area (hereinafter referred to as the "specified area area") based on the area information updated before the calculation date of the second tax base amount, among the area information updated on the day closest to the calculation date. Specifically, the calculation unit 113 calculates the total value of the areas indicated by the area information updated on the day closest to the calculation date of the second tax base amount, which corresponds to the parcels included in the specified area. If the specified area area differs from the specified area standard area, the determination unit 115 determines that there is an error in the area of any of the parcels in the specified area, and the output unit 116 outputs information indicating that there is an error in the area.

Although the present invention has been described above using the embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments. It is clear to those skilled in the art that various modifications or improvements can be made to the above embodiments. It is clear from the claims that such modifications or improvements can also be included in the technical scope of the present invention. For example, in the above explanation, the verification of the tax base value of residential land in a district where a roadside land price is attached has been described, but the present invention can also be applied to the verification of the tax base value of land other than the above residential land. Also, in the above embodiment, the tax base verification device 1 has been described as a device that constitutes the tax base verification system S that is connected to the tax base management device 2 via a network, but it may be configured not to be connected to the tax base management device 2 via a network.

1: Tax base verification device, 2: Tax base management device, 11: Control unit, 12: Communication unit, 13: Memory unit, 14: Display unit, 15: Operation unit, 21: Control unit, 22: Communication unit, 23: Memory unit, 111: Acquisition unit, 112: Memory control unit, 113: Calculation unit, 114: Reception unit, 115: Determination unit, 116: Output unit, 117: Difference detection unit, 211: Transmission unit, 212: Acquisition unit, 213: Memory update unit, S: Tax base verification system

Claims (4)

An acquisition unit that acquires land lot information indicating the land lot number of a parcel and a plurality of parcel information used to calculate the tax base amount of the parcel corresponding to the land lot number;
A storage control unit that stores the land address information and the plurality of pieces of land information in a storage unit in association with each other;
A calculation unit that calculates a first tax base amount at a first point in time for each of the parcel numbers corresponding to the parcel number information based on at least one of the plurality of parcel information ;
an output unit that outputs, when the first parcel information used in the calculation of the first tax base amount does not match the second parcel information used in the calculation of the second tax base amount at a second time point prior to the first time point corresponding to the parcel information used in the calculation of the first tax base amount, mismatch information indicating that the first parcel information and the second parcel information do not match, in association with the parcel number information;
An information processing device comprising: Further comprising a determination unit that determines whether the first tax base amount and the second tax base amount match when the first stroke information and the second stroke information match,
The information processing device according to claim 1 . Computer,
An acquisition unit that acquires land lot information indicating the land lot number of a parcel and a plurality of land lot information used to calculate the tax base amount of the parcel corresponding to the land lot number;
A storage control unit that stores the land address information and the plurality of pieces of land information in a storage unit in association with each other;
A calculation unit that calculates a first tax base amount at a first point in time for each of the parcel numbers corresponding to the parcel number information based on at least one of the plurality of parcel information ; and
an output unit that outputs, when the first parcel information used in the calculation of the first tax base amount does not match the second parcel information used in the calculation of the second tax base amount at a second time point prior to the first time point corresponding to the parcel information used in the calculation of the first tax base amount, mismatch information indicating that the first parcel information and the second parcel information do not match, in association with the parcel number information;
A program to function as a The computer executes
A step of acquiring land lot information indicating the land lot number of a parcel and a plurality of parcel information used for calculating the tax base amount of the parcel corresponding to the land lot number;
A storage control unit that stores the land address information and the plurality of pieces of land information in a storage unit in association with each other;
Calculating a first tax base amount at a first time point for each of the parcel numbers corresponding to the parcel number information based on at least one of the plurality of parcel information;
When the first parcel information used in the calculation of the first tax base amount does not match the second parcel information used in the calculation of the second tax base amount at a second time point prior to the first time point corresponding to the parcel information used in the calculation of the first tax base amount, outputting discrepancy information indicating that the first parcel information and the second parcel information do not match, in association with the parcel number information;
An information processing method comprising the steps of:

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