CN113129086B - Value-added tax deduction method, device, system, equipment and medium - Google Patents
Value-added tax deduction method, device, system, equipment and medium Download PDFInfo
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Abstract
The invention discloses a value-added tax deduction method, a device, a system, equipment and a medium, which are used for solving the problem of low efficiency of the existing value-added tax deduction. In the value-added tax deduction system, after the second blockchain node carries out fund payment transaction, the tax payment transaction corresponding to the first blockchain link point is obtained, and the deduction transaction can be directly initiated to the third blockchain link point according to the tax payment transaction, and the value-added tax deduction is carried out, so that the whole process does not need user intervention, and the operation is simple and convenient, thereby improving the efficiency of the value-added tax deduction.
Description
Technical Field
The invention relates to the technical field of blockchains, in particular to a value-added tax deduction method, a device, a system, equipment and a medium.
Background
In the existing invoice system, when a purchaser purchases goods, the purchaser can log in the tax system through own account numbers and passwords after paying funds, the tax system can display value-added tax information which can be deducted by the purchaser, and the purchaser can select the value-added tax information which needs to be deducted according to own requirements.
According to the operation, in the prior art, when the value-added tax deduction is performed, the purchaser is required to log in the tax platform and select the deducted value-added tax information, the operation is complicated, and the efficiency of the value-added tax deduction is affected.
Disclosure of Invention
The embodiment of the invention provides a value-added tax deduction method, device, system, equipment and medium, which are used for solving the problem of low efficiency of the existing value-added tax deduction.
The embodiment of the invention provides a value-added tax deduction system, which comprises:
the first blockchain node is used for carrying out tax payment transaction;
The second block chain node is used for conducting fund payment transaction, and when the tax payment transaction corresponding to the first block chain node is obtained, deducting transaction comprising the corresponding tax payment transaction is sent to the third block chain node;
And the third blockchain node is used for receiving the deduction transaction, deducting the value-added tax of the corresponding tax payment transaction according to the deduction transaction, and controlling the value-added tax deduction amount to be transferred to an account corresponding to the second blockchain node.
Further, the second blockchain node is specifically configured to initiate, to a third blockchain link point, a deduction transaction including the funds payment transaction and the corresponding tax payment transaction.
Further, the third blockchain node is further configured to verify transaction data carried in the deduction transaction, and when the verification passes, deduct the value-added tax of the corresponding tax payment transaction according to the deduction transaction.
Further, the second blockchain node is further configured to obtain the corresponding tax payment transaction from the first blockchain node;
the first blockchain node is further configured to verify the second blockchain node according to the corresponding tax payment transaction, and when the verification passes, send the corresponding tax payment transaction to the second blockchain node.
Correspondingly, the embodiment of the invention provides a value-added tax deduction method, which comprises the following steps:
The second block link points conduct funds payment transactions;
and if the tax payment transaction corresponding to the fund payment transaction by the first blockchain node is acquired, transmitting a deduction transaction comprising the corresponding tax payment transaction to a third blockchain link.
Further, before the tax payment transaction corresponding to the fund payment transaction of the first blockchain node is obtained, the method further includes:
and acquiring tax payment transactions corresponding to the fund payment transactions of the first blockchain node.
Correspondingly, the embodiment of the invention provides a value-added tax deduction method, which comprises the following steps:
the third blockchain node receives deduction transactions comprising the corresponding tax payment transactions sent by the second blockchain node;
and deducting the value-added tax of the corresponding tax payment transaction according to the deduction transaction, and controlling the value-added tax deduction amount to be transferred to an account corresponding to the second blockchain node.
Further, before the deduction of the value added tax of the corresponding tax payment transaction according to the deduction transaction, the method further includes:
verifying the transaction data carried in the deduction transaction, and when the verification passes, performing the step of deducting the value-added tax of the corresponding tax payment transaction according to the deduction transaction.
Correspondingly, the embodiment of the invention provides a value-added tax deduction device, which comprises:
The payment module is used for conducting funds payment transaction;
and the sending module is used for sending deduction transaction comprising the corresponding tax payment transaction to the third block chain link when the tax payment transaction corresponding to the fund payment transaction by the first block chain node is acquired.
Further, the apparatus further comprises:
and the acquisition module is used for acquiring tax payment transactions corresponding to the fund payment transactions of the first blockchain node.
Correspondingly, the embodiment of the invention provides a value-added tax deduction device, which comprises:
The receiving module is used for receiving deduction transactions comprising the corresponding tax payment transactions, which are sent by the second blockchain node;
And the transfer module is used for deducting the value-added tax of the corresponding tax payment transaction according to the deduction transaction and controlling the transfer of the value-added tax deduction amount to an account corresponding to the second blockchain node.
Further, the apparatus further comprises:
And the verification module is used for verifying the transaction data carried in the deduction transaction, and when the verification passes, the transfer module is triggered.
Accordingly, an embodiment of the present invention provides an electronic device, where the electronic device includes a processor and a memory, where the memory is configured to store a computer program, and the processor is configured to implement, when executing the computer program stored in the memory, steps of any one of the foregoing value-added tax deduction methods.
Accordingly, an embodiment of the present invention provides a computer readable storage medium storing a computer program which, when executed by a processor, implements the steps of any one of the value added tax deduction methods described above.
The embodiment of the invention provides a value-added tax deduction method, a device, a system, equipment and a medium, wherein a first blockchain node in the value-added tax deduction system is used for carrying out tax payment transaction; the second block chain node is used for conducting fund payment transaction, and when the tax payment transaction corresponding to the first block chain node is obtained, deducting transaction comprising the corresponding tax payment transaction is sent to the third block chain node; and the third blockchain node is used for receiving the deduction request, deducting the value-added tax of the corresponding tax payment transaction according to the deduction request, and controlling the value-added tax deduction amount to be transferred to an account corresponding to the second blockchain node. In the value-added tax deduction system, after the second blockchain node carries out fund payment transaction, the tax payment transaction corresponding to the first blockchain link point is obtained, and the deduction transaction can be directly initiated to the third blockchain link point according to the tax payment transaction, and the value-added tax deduction is carried out, so that the whole process does not need user intervention, and the operation is simple and convenient, thereby improving the efficiency of the value-added tax deduction.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a value-added tax deduction system according to an embodiment of the present invention;
FIG. 2 is a schematic process diagram of a value-added tax deduction method according to an embodiment of the present invention;
FIG. 3 is a schematic process diagram of a value-added tax deduction method according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a value-added tax deduction device according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a value-added tax deduction device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
For the purpose of promoting an understanding of the principles and advantages of the invention, reference will now be made in detail to the drawings and specific examples, some but not all of which are illustrated in the accompanying drawings. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In order to improve the efficiency of value-added tax deduction, the embodiment of the invention provides a value-added tax deduction method, a device, a system, equipment and a medium.
Example 1:
fig. 1 is a schematic structural diagram of a value-added tax deduction system according to an embodiment of the present invention, where the system includes:
A first blockchain node 11 for performing tax payment transactions;
The second blockchain node 12 is configured to perform a fund payment transaction, and initiate a deduction transaction including the corresponding tax payment transaction to the third blockchain node 13 when acquiring the tax payment transaction corresponding to the first blockchain node 11;
And the third blockchain node 13 is used for receiving the deduction transaction, deducting the value-added tax of the corresponding tax payment transaction according to the deduction transaction, and controlling the value-added tax deduction amount to be transferred to the account corresponding to the second blockchain node 12.
The first blockchain node 11 refers to an enterprise blockchain node of a seller enterprise performing a sales service, and after receiving funds paid by a buyer, the first blockchain node 11 issues an invoice to the buyer according to the obtained funds paid by the buyer, wherein the invoice can be a paper invoice or an electronic invoice. The first blockchain node 11 is required to perform tax payment transaction according to the invoice, that is, the first blockchain node 11 pays tax to the tax bureau.
The second blockchain node 12 is any one of the enterprise blockchain nodes other than the seller enterprise to which the first blockchain node 11 corresponds. The second blockchain node 12 performs a funds payment transaction, which may be that after the business corresponding to the second blockchain node 12 has a buying and selling relationship with the seller business corresponding to the first blockchain node 11, the second blockchain node 12 performs a funds payment transaction with the first blockchain node 11; or, the staff of the enterprise corresponding to the second blockchain node 12 may have a buying and selling relationship with the seller enterprise corresponding to the first blockchain node 11, and after the second blockchain node 12 receives the reimbursement of the staff, the second blockchain node 12 performs the funds payment transaction to the staff.
Specifically, the second blockchain node 12 may perform a payment transaction for funds by means of electronic transfer, or may perform a payment for funds by means of cash payment.
In order to realize automatic deduction, the second blockchain node 12 initiates a deduction transaction to the third blockchain node 13 when finishing a fund payment transaction and acquiring a tax payment transaction corresponding to the first blockchain node 11; that is, when the second blockchain node 12 finishes the payment of the funds and obtains the tax payment transaction that the first blockchain node 11 and the second blockchain node 12 buy and sell, for the tax payment transaction, the second blockchain node 12 may obtain a deduction from the tax bureau, specifically, the second blockchain node 12 sends the deduction transaction to the tax bureau, where the deduction transaction includes the corresponding tax payment transaction.
The third blockchain node 13 refers to a tax bureau blockchain node, after the third blockchain node 13 receives the deduction transaction sent by the second blockchain node 12, the third blockchain node 13 can deduct the value-added tax of the corresponding tax payment transaction according to the deduction transaction, and according to a specific value-added tax deduction policy, the third blockchain node 13 determines the value-added tax deduction amount of the tax payment transaction and controls the value-added tax deduction amount to be transferred to the account corresponding to the second blockchain node 12.
In the value-added tax deduction system, after the second blockchain node carries out fund payment transaction, the tax payment transaction corresponding to the first blockchain link point is obtained, and the deduction transaction can be directly initiated to the third blockchain link point according to the tax payment transaction, and the value-added tax deduction is carried out, so that the whole process does not need user intervention, and the operation is simple and convenient, thereby improving the efficiency of the value-added tax deduction.
Example 2:
In order to ensure the accuracy of the deduction transaction, in the embodiment of the present invention, the second blockchain node 12 is specifically configured to initiate the deduction transaction including the funds payment transaction and the corresponding tax payment transaction to the third blockchain node 13.
After the second blockchain node 12 obtains the tax payment transaction corresponding to the first blockchain node 11, the second blockchain node 12 sends a deduction transaction to the third blockchain node 13, and specifically, in order to ensure the accuracy of the deduction transaction, the deduction transaction sent by the second blockchain node 12 includes not only the corresponding tax payment transaction but also a fund payment transaction between the second blockchain node 12 and the first blockchain node 11.
Example 3:
in order to improve accuracy of deduction transaction, in the embodiments of the present invention, the third blockchain node is further configured to verify transaction data carried in the deduction transaction, and when verification passes, deduct the value-added tax of the corresponding tax payment transaction according to the deduction transaction.
After receiving the deduction transaction sent by the second blockchain node 12, the third blockchain node 13 needs to verify the transaction data in the deduction transaction, i.e. determine whether the amount of the corresponding tax payment transaction in the deduction transaction is correct.
Specifically, after receiving the deduction transaction sent by the second blockchain node 12, the deduction transaction includes the enterprise identification information of the first blockchain node 11 corresponding to the tax payment transaction, and the third blockchain node 13 determines, according to the enterprise identification information of the first blockchain node 11, the tax rate of the enterprise corresponding to the enterprise identification information, that is, determines the tax rate of the enterprise of the first blockchain node 11.
The third blockchain node 13 determines the tax paid by the first blockchain node 11 according to the amount of funds paid for the transaction in the deduction transaction and the determined tax rate of the enterprise corresponding to the first blockchain node 11; and judging whether the amount of the corresponding tax payment transaction in the deduction transaction is the same as the tax paid by the first blockchain node 11, if so, the transaction data in the deduction transaction passes verification.
And when the third blockchain node 13 determines that the transaction data carried in the deduction transaction passes verification, deduction is performed according to the value-added tax of the corresponding tax payment transaction.
Example 4:
in order to improve accuracy of deduction transaction, in the above embodiments, in the embodiments of the present invention, the second blockchain node 12 is further configured to obtain the corresponding tax payment transaction from the first blockchain node 11;
the first blockchain node 11 is further configured to verify the second blockchain node 12 according to the corresponding tax payment transaction, and send the corresponding tax payment transaction to the second blockchain node 12 when the verification passes.
Before performing the deduction transaction, the second blockchain node 12 needs to acquire a corresponding tax payment transaction from the first blockchain node 11. The first blockchain node 11 validates the second blockchain node 12 according to the corresponding tax payment transaction. Specifically, in order to implement verification of the second blockchain node 12, the corresponding tax payment transaction includes enterprise identification information of an enterprise performing the funds payment transaction corresponding to the tax payment transaction.
The first blockchain node 11 determines, according to the corresponding tax payment transaction, whether the enterprise identification information of the second blockchain node 12 is the same as the enterprise identification information of the enterprise corresponding to the tax payment transaction and performing the funds payment transaction, and if so, indicates that the second blockchain node 12 passes the verification, and the first blockchain node 11 sends the corresponding tax payment transaction to the second blockchain node 12. The first blockchain node 11 pre-stores a correspondence between the second blockchain node 12 and the enterprise identification information, and the first blockchain node 11 determines the enterprise identification information of the second blockchain node 12 according to the correspondence.
Example 5:
Fig. 2 is a schematic process diagram of a value-added tax deduction method according to an embodiment of the present invention, where the process includes the following steps:
s201: the second blockchain node performs a funds payment transaction.
The second blockchain node is any one of the enterprise blockchain nodes other than the seller enterprise corresponding to the first blockchain node. The second block link point performs a funds payment transaction, which may be that after the business corresponding to the second block link point has a business relationship with the seller business corresponding to the first block link point, the second block link node performs a funds payment transaction to the first block link point; or the staff of the enterprise corresponding to the second block chain link point and the seller enterprise corresponding to the first block chain link point have a buying and selling relationship, and after the second block chain link point receives the reimbursement of the staff, the second block chain link node carries out the fund payment transaction to the staff.
Specifically, the second blockchain node performs the fund payment transaction by electronic transfer, or by cash payment.
S202: and if the tax payment transaction corresponding to the fund payment transaction by the first blockchain node is acquired, transmitting a deduction transaction comprising the corresponding tax payment transaction to a third blockchain link.
In order to realize automatic deduction, the second blockchain node initiates a deduction transaction to the third blockchain node when finishing the fund payment transaction and acquiring the tax payment transaction corresponding to the first blockchain node; the second blockchain node can acquire deduction from a tax bureau for the tax payment transaction after completing the payment of funds and acquiring tax payment transactions of buying and selling the first blockchain node and the second blockchain node, and specifically, the second blockchain node sends the deduction transaction to the tax bureau, wherein the deduction transaction comprises the corresponding tax payment transaction.
In order to obtain a tax payment transaction corresponding to the first blockchain node and the fund payment transaction, before obtaining the tax payment transaction corresponding to the first blockchain node and the fund payment transaction, the method further includes:
and acquiring tax payment transactions corresponding to the fund payment transactions of the first blockchain node.
The second blockchain node obtains the corresponding tax payment transaction from the first blockchain node. And verifying the second block chain node by the first block chain link point according to the corresponding tax payment transaction, wherein the second block chain link point acquires the corresponding tax payment transaction when the second block chain link point passes the verification. Specifically, in order to realize verification of the second blockchain node, the corresponding tax payment transaction includes enterprise identification information of an enterprise corresponding to the tax payment transaction and performing the fund payment transaction.
Specifically, the first block chain link point sends the corresponding tax payment transaction to the second block chain link point when judging that the enterprise identification information of the second block chain node is the same as the enterprise identification information of the enterprise corresponding to the tax payment transaction and carrying out the fund payment transaction according to the corresponding tax payment transaction, and the second block chain link point obtains the corresponding tax payment transaction. The first block chain link point pre-stores the corresponding relation between the second block chain node and the enterprise identification information, and the first block chain node determines the enterprise identification information of the second block chain node according to the corresponding relation.
In the embodiment of the invention, after the fund payment transaction is carried out, the second blockchain node acquires the tax payment transaction corresponding to the first blockchain link point, and can directly initiate the deduction transaction to the third blockchain link point according to the tax payment transaction, and the deduction of the value-added tax is carried out, so that the whole process does not need user intervention, and the operation is simple and convenient, thereby improving the efficiency of the deduction of the value-added tax.
Example 6:
Fig. 3 is a schematic process diagram of a value-added tax deduction method according to an embodiment of the present invention, where the process includes the following steps:
S301: and the third blockchain node receives the deduction transaction comprising the corresponding tax payment transaction sent by the second blockchain node.
The value-added tax deduction method is applied to the third block chain node, wherein the third block chain node refers to a tax bureau block chain node, and the third block chain node receives a deduction transaction sent by the second block chain node, wherein the deduction transaction comprises a tax payment transaction corresponding to the first block chain node.
S302: and deducting the value-added tax of the corresponding tax payment transaction according to the deduction transaction, and controlling the value-added tax deduction amount to be transferred to an account corresponding to the second blockchain node.
After the third block link point receives the deduction transaction sent by the second block link point, in order to realize the deduction of the value-added tax of the corresponding tax payment transaction, the third block link point determines the value-added tax deduction amount of the corresponding tax payment transaction according to a specific value-added tax deduction policy, and controls the value-added tax deduction amount to be transferred to an account corresponding to the second block link point.
In order to improve accuracy of the deduction transaction, before the deduction of the value-added tax of the corresponding tax payment transaction according to the deduction transaction, the method further comprises:
verifying the transaction data carried in the deduction transaction, and when the verification passes, performing the step of deducting the value-added tax of the corresponding tax payment transaction according to the deduction transaction.
After receiving the deduction transaction sent by the second blockchain node, the third blockchain node also needs to verify transaction data in the deduction transaction, namely, judges whether the amount of the corresponding tax payment transaction in the deduction transaction is accurate or not.
Specifically, after the third blockchain node receives the deduction transaction sent by the second blockchain node, the third blockchain node determines the tax rate of the enterprise corresponding to the enterprise identification information according to the enterprise identification information corresponding to the first blockchain node, namely, determines the tax rate of the enterprise of the first blockchain node.
The third block link point determines the tax paid by the first block link point according to the amount of funds payment transaction in the deduction transaction and the determined tax rate of the enterprise corresponding to the first block link point; and judging whether the amount of the corresponding tax payment transaction in the deduction transaction is the same as the tax paid by the first block link point, if so, verifying the transaction data in the deduction transaction.
And when the link point of the third block determines that the transaction data carried in the deduction transaction passes verification, deducting according to the value-added tax of the corresponding tax payment transaction.
Because in the embodiment of the invention, after the third blockchain node obtains the deduction transaction sent by the second blockchain node, the third blockchain node can determine the value-added tax deduction amount of the tax payment transaction corresponding to the first blockchain link point in the deduction transaction according to the deduction transaction, and control the value-added tax deduction amount to be transferred to the account corresponding to the second blockchain link point, the whole process does not need user intervention, and the operation is simple and convenient, thereby improving the value-added tax deduction efficiency.
Example 7:
Fig. 4 is a schematic structural diagram of a value-added tax deduction device according to an embodiment of the present invention, and on the basis of the foregoing embodiments, the embodiment of the present invention provides a device, which includes:
a payment module 401 for conducting a funds payment transaction;
And the sending module 402 is configured to send, to a third blockchain link, a deduction transaction including the corresponding tax payment transaction when the tax payment transaction corresponding to the fund payment transaction by the first blockchain node is acquired.
Further, the apparatus further comprises:
And the obtaining module 403 is configured to obtain a tax payment transaction corresponding to the funds payment transaction by the first blockchain node.
The value added tax deduction device is positioned in a second block chain node, and the second block chain node comprises all modules of the value added tax deduction device.
In the embodiment of the invention, after the fund payment transaction is carried out, the second blockchain node acquires the tax payment transaction corresponding to the first blockchain link point, and can directly initiate the deduction transaction to the third blockchain link point according to the tax payment transaction, and the deduction of the value-added tax is carried out, so that the whole process does not need user intervention, and the operation is simple and convenient, thereby improving the efficiency of the deduction of the value-added tax.
Example 8:
fig. 5 is a schematic structural diagram of a value-added tax deduction device according to an embodiment of the present invention, and on the basis of the foregoing embodiments, the embodiment of the present invention provides a device, which includes:
A receiving module 501, configured to receive a deduction transaction including the corresponding tax payment transaction sent by the second blockchain node;
And the transfer module 502 is configured to deduct the value-added tax of the corresponding tax payment transaction according to the deduction transaction, and control the transfer of the value-added tax deduction amount to an account corresponding to the second blockchain node.
Further, the apparatus further comprises:
And the verification module 503 is configured to verify the transaction data carried in the deduction transaction, and when the verification passes, trigger the transfer module.
The value added tax deduction device is positioned in a third block chain node, and the third block chain node comprises all modules of the value added tax deduction device.
Because in the embodiment of the invention, after the third blockchain node obtains the deduction transaction sent by the second blockchain node, the third blockchain node can determine the value-added tax deduction amount of the tax payment transaction corresponding to the first blockchain link point in the deduction transaction according to the deduction transaction, and control the value-added tax deduction amount to be transferred to the account corresponding to the second blockchain link point, the whole process does not need user intervention, and the operation is simple and convenient, thereby improving the value-added tax deduction efficiency.
Example 9:
fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention, and on the basis of the foregoing embodiments, the embodiment of the present invention further provides an electronic device, which includes a processor 601, a communication interface 602, a memory 603, and a communication bus 604, where the processor 601, the communication interface 602, and the memory 603 complete communication with each other through the communication bus 604;
the memory 603 has stored therein a computer program which, when executed by the processor 601, causes the processor 601 to perform the steps of:
The second block link points conduct funds payment transactions;
and if the tax payment transaction corresponding to the fund payment transaction by the first blockchain node is acquired, transmitting a deduction transaction comprising the corresponding tax payment transaction to a third blockchain link.
Before the tax payment transaction corresponding to the fund payment transaction of the first blockchain node is obtained, the method further comprises:
and acquiring tax payment transactions corresponding to the fund payment transactions of the first blockchain node.
The communication bus mentioned above for the electronic device may be a peripheral component interconnect standard (PERIPHERAL COMPONENT INTERCONNECT, PCI) bus or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, etc. The communication bus may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, the figures are shown with only one bold line, but not with only one bus or one type of bus.
The communication interface 602 is used for communication between the electronic device and other devices described above.
The Memory may include random access Memory (Random Access Memory, RAM) or may include Non-Volatile Memory (NVM), such as at least one disk Memory. Optionally, the memory may also be at least one memory device located remotely from the aforementioned processor.
The processor may be a general-purpose processor, including a central processing unit, a network processor (Network Processor, NP), etc.; but also digital instruction processors (DIGITAL SIGNAL Processing units, DSPs), application specific integrated circuits, field programmable gate arrays or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
In the embodiment of the invention, after the fund payment transaction is carried out, the second blockchain node acquires the tax payment transaction corresponding to the first blockchain link point, and can directly initiate the deduction transaction to the third blockchain link point according to the tax payment transaction, and the deduction of the value-added tax is carried out, so that the whole process does not need user intervention, and the operation is simple and convenient, thereby improving the efficiency of the deduction of the value-added tax.
Example 10:
Fig. 7 is a schematic structural diagram of another electronic device according to an embodiment of the present invention, and on the basis of the foregoing embodiments, the embodiment of the present invention further provides an electronic device, which includes a processor 701, a communication interface 702, a memory 703, and a communication bus 704, where the processor 701, the communication interface 702, and the memory 703 complete communication with each other through the communication bus 704;
The memory 703 has stored therein a computer program which, when executed by the processor 701, causes the processor 701 to perform the steps of:
the third blockchain node receives deduction transactions comprising the corresponding tax payment transactions sent by the second blockchain node;
and deducting the value-added tax of the corresponding tax payment transaction according to the deduction transaction, and controlling the value-added tax deduction amount to be transferred to an account corresponding to the second blockchain node.
Before the deduction of the value-added tax of the corresponding tax payment transaction according to the deduction transaction, the method further comprises:
verifying the transaction data carried in the deduction transaction, and when the verification passes, performing the step of deducting the value-added tax of the corresponding tax payment transaction according to the deduction transaction.
The communication bus mentioned above for the electronic device may be a peripheral component interconnect standard (PERIPHERAL COMPONENT INTERCONNECT, PCI) bus or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, etc. The communication bus may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, the figures are shown with only one bold line, but not with only one bus or one type of bus.
The communication interface 602 is used for communication between the electronic device and other devices described above.
The Memory may include random access Memory (Random Access Memory, RAM) or may include Non-Volatile Memory (NVM), such as at least one disk Memory. Optionally, the memory may also be at least one memory device located remotely from the aforementioned processor.
The processor may be a general-purpose processor, including a central processing unit, a network processor (Network Processor, NP), etc.; but also digital instruction processors (DIGITAL SIGNAL Processing units, DSPs), application specific integrated circuits, field programmable gate arrays or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
Because in the embodiment of the invention, after the third blockchain node obtains the deduction transaction sent by the second blockchain node, the third blockchain node can determine the value-added tax deduction amount of the tax payment transaction corresponding to the first blockchain link point in the deduction transaction according to the deduction transaction, and control the value-added tax deduction amount to be transferred to the account corresponding to the second blockchain link point, the whole process does not need user intervention, and the operation is simple and convenient, thereby improving the value-added tax deduction efficiency.
Example 11:
On the basis of the above embodiments, the embodiments of the present invention also provide a computer-readable storage medium storing a computer program, the computer program being executed by a processor to:
The second block link points conduct funds payment transactions;
and if the tax payment transaction corresponding to the fund payment transaction by the first blockchain node is acquired, transmitting a deduction transaction comprising the corresponding tax payment transaction to a third blockchain link.
Before the tax payment transaction corresponding to the fund payment transaction of the first blockchain node is obtained, the method further comprises:
and acquiring tax payment transactions corresponding to the fund payment transactions of the first blockchain node.
In the embodiment of the invention, after the fund payment transaction is carried out, the second blockchain node acquires the tax payment transaction corresponding to the first blockchain link point, and can directly initiate the deduction transaction to the third blockchain link point according to the tax payment transaction, and the deduction of the value-added tax is carried out, so that the whole process does not need user intervention, and the operation is simple and convenient, thereby improving the efficiency of the deduction of the value-added tax.
Example 12:
On the basis of the above embodiments, the embodiments of the present invention also provide a computer-readable storage medium storing a computer program, the computer program being executed by a processor to:
the third blockchain node receives deduction transactions comprising the corresponding tax payment transactions sent by the second blockchain node;
and deducting the value-added tax of the corresponding tax payment transaction according to the deduction transaction, and controlling the value-added tax deduction amount to be transferred to an account corresponding to the second blockchain node.
Before the deduction of the value-added tax of the corresponding tax payment transaction according to the deduction transaction, the method further comprises:
verifying the transaction data carried in the deduction transaction, and when the verification passes, performing the step of deducting the value-added tax of the corresponding tax payment transaction according to the deduction transaction.
Because in the embodiment of the invention, after the third blockchain node obtains the deduction transaction sent by the second blockchain node, the third blockchain node can determine the value-added tax deduction amount of the tax payment transaction corresponding to the first blockchain link point in the deduction transaction according to the deduction transaction, and control the value-added tax deduction amount to be transferred to the account corresponding to the second blockchain link point, the whole process does not need user intervention, and the operation is simple and convenient, thereby improving the value-added tax deduction efficiency.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (7)
1. A value added tax deduction system, the system comprising:
the first blockchain node is used for carrying out tax payment transaction; the first blockchain node is an enterprise blockchain node of a seller enterprise for sales service;
the second blockchain node is used for conducting fund payment transaction, and when the corresponding tax payment transaction of the first blockchain node is obtained, deduction transaction containing the corresponding tax payment transaction is initiated to the third blockchain node; the second blockchain node is any enterprise blockchain node outside the seller enterprise corresponding to the first blockchain node;
the third blockchain node is used for receiving the deduction transaction, deducting the value-added tax of the corresponding tax payment transaction according to the deduction transaction, and controlling the value-added tax deduction amount to be transferred to an account corresponding to the second blockchain node; the third blockchain node is a tax office blockchain node;
The second block chain node is further configured to obtain the corresponding tax payment transaction from the first block chain node; the tax payment transaction comprises enterprise identification information of enterprises corresponding to the tax payment transaction and carrying out fund payment transaction;
the first blockchain node is further configured to determine whether the enterprise identification information of the second blockchain node is the same as the enterprise identification information of the enterprise corresponding to the tax payment transaction and performing the funds payment transaction, if so, indicate that the second blockchain node passes verification, and send the tax payment transaction to the second blockchain node when the verification passes.
2. The system of claim 1, wherein the second blockchain node is specifically configured to initiate a deduction transaction including the funds payment transaction and the corresponding tax payment transaction to a third blockchain node.
3. The system according to claim 1 or 2, wherein the third blockchain node is further configured to verify transaction data carried in the deduction transaction, and when the verification passes, deduct the value-added tax of the corresponding tax payment transaction according to the deduction transaction.
4. A value added tax deduction method, the method comprising:
The second block link points conduct funds payment transactions;
Acquiring tax payment transactions corresponding to the fund payment transactions of the first blockchain node; the tax payment transaction comprises enterprise identification information of enterprises corresponding to the tax payment transaction and carrying out fund payment transaction; the tax payment transaction is sent to a first block chain node, when the second block chain node obtains the corresponding tax payment transaction from the first block chain link point, the first block chain link point is enabled to verify the second block chain node according to the tax payment transaction, and when verification is passed, the first block chain link point sends the tax payment transaction to the second block chain node;
The second blockchain node sends deduction transaction containing the corresponding tax payment transaction to a third blockchain node if acquiring the tax payment transaction corresponding to the fund payment transaction by the first blockchain node; the third blockchain node withholds the value-added tax of the corresponding tax payment transaction according to the withhold transaction, and controls the value-added tax withhold amount to be transferred to an account corresponding to the second blockchain node; the first blockchain node is an enterprise blockchain node of a seller enterprise for sales service; the second blockchain node is any enterprise blockchain node outside the seller enterprise corresponding to the first blockchain node; the third blockchain node is a tax office blockchain node.
5. A value added tax deduction device, the device comprising:
The payment module is used for carrying out funds payment transaction on the link points of the second block;
The acquisition module is used for acquiring tax payment transactions corresponding to the fund payment transactions of the first blockchain node; the tax payment transaction comprises enterprise identification information of enterprises corresponding to the tax payment transaction and carrying out fund payment transaction; the tax payment transaction is sent to a first block chain node, when the second block chain node obtains the corresponding tax payment transaction from the first block chain link point, the first block chain link point is enabled to verify the second block chain node according to the tax payment transaction, and when verification is passed, the first block chain link point sends the tax payment transaction to the second block chain node;
The sending module is used for sending a deduction transaction containing the corresponding tax payment transaction to a third block chain link when the second block chain node acquires the tax payment transaction corresponding to the fund payment transaction from the first block chain node; the third blockchain node withholds the value-added tax of the corresponding tax payment transaction according to the withhold transaction, and controls the value-added tax withhold amount to be transferred to an account corresponding to the second blockchain node; the first blockchain node is an enterprise blockchain node of a seller enterprise for sales service; the third blockchain node is a tax office blockchain node.
6. An electronic device comprising a processor and a memory for storing a computer program, the processor being adapted to implement the steps of the method of claim 4 when executing the computer program stored in the memory.
7. A computer-readable storage medium, characterized in that it stores a computer program which, when executed by a processor, implements the steps of the method according to claim 4.
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