TW202125383A - Trading system for integrating stock transferring and tax filing and method thereof - Google Patents

Abstract

A trading system for integrating stock transferring and tax filing and method thereof is disclosed. By generating a plurality of shareholder account in the blockchain network through a company host to distribute to each shareholder host, and transmitting a transfer request through a blockchain transaction when the shareholder host wants to transfer shares. Then the company host to provide a financial statement for review and calculate a tax information for the transfer request, and to sign as well as to generate a passed smart contract by an auditing host, so as to allow the shareholder host to transfer shares and to transmit an address of the passed smart contract to an tax administration host or a tax filing server for filing taxes. The mechanism is help to improve the convenience of share transfer.

Description

Transaction system and method integrating stock transfer and tax declaration

The invention relates to a trading system and a method thereof, in particular to a trading system and method integrating stock transfer and tax declaration.

In recent years, with the popularity and vigorous development of securities trading, various trading methods have sprung up. However, transaction and tax declaration are often two sides of the same entity. Therefore, how to carry out tax declaration at the same time as the transaction has become one of the problems that manufacturers urgently want to solve.

Generally speaking, if the traditional unissued stocks need to be transferred, the shareholders of the company with unissued stocks need to issue a "share transfer certificate" or a "share transfer letter" when transferring the shares (directors and shareholders must hold meetings and keep meeting minutes , Signed letter, etc.) in order to be checked by the notary. During this period, the accountant must confirm the company’s financial statements and stock value, and the notary will review the transfer certificate before the transfer registration is allowed. The purpose is to confirm the unissued shares. The transfer behavior of both shareholders is authentic and in line with the principle of fairness. As for the transfer behavior, the shareholders of both parties need to calculate transaction costs and gains in the year when the shares are transferred, and declare and pay taxes by themselves in accordance with the provisions of the Income Tax Law. However, the traditional method requires multiple parties to transmit paper copies, and requires repeated confirmation and verification. Especially when transferring shares, the value of the shares must be reviewed and confirmed by a third party, but it also needs to declare and pay taxes by itself, so it has the convenience of share transfer The problem of poor sex.

In view of this, some manufacturers have proposed the technology of electronic filing, which uses digitalized paper that needs to be transmitted by multiple parties and signs with digital certificates. In this way, the processing efficiency can be effectively improved. However, this method still requires self-declaration of tax after the transfer of shares, so this method still cannot effectively solve the problem of poor convenience in the transfer of shares.

In summary, it can be seen that in the prior art, there has been a problem of poor convenience in share transfer for a long time. Therefore, it is necessary to propose improved technical means to solve this problem.

The invention discloses a trading system and method integrating stock transfer and tax reporting.

First of all, the present invention discloses a trading system that integrates stock transfer and tax declaration, which is applied to a blockchain network composed of multiple node hosts connected point-to-point. This system includes: supervisory host, company host, audit End host and shareholder end host. Among them, the supervisory end host is one of the node hosts, used to pre-publish the account management smart contract containing the management account on the blockchain network, and allow the management account setting and management of shareholder accounts, notary unit accounts, and accountants Account number and tax officer account; the company-side host is one of the node hosts, which is used to establish shareholder accounts on the blockchain network and distribute them. Each shareholder account corresponds to a number of shares, and when the company-side host is in When the blockchain network detects the transfer request, it provides financial statements for auditing and calculating the tax information of the transfer request; the auditing end host is one of the node hosts for notarization after the financial report is approved The unit account and accountant account sign the tax information, and generate the corresponding audited smart contract based on the signed tax information to publish to the blockchain network, and obtain the corresponding audited smart contract address. Then, in the part of the shareholder host, each shareholder host is one of the node hosts, and each shareholder host includes: a transmission module, a transfer module, and a tax declaration module. Among them, the transmission module is used to transfer the transfer request including the transfer of the shareholder account, the transfer of the shareholder account, and the transfer quantity to the blockchain network through the blockchain transaction when the shareholder host wants to transfer the shares, and the transfer request When the shares are received, the smart contract address is approved; the transfer module is connected to the transmission module to execute the transfer function after the shareholder host has the transfer-out shareholder account and the smart contract is generated after the verification is passed to meet the preset transfer conditions , Transfer the shares equal to the transferred amount from the transfer-out shareholder account to the transfer-in shareholder account; the tax declaration module is connected to the transfer module, which will be reviewed after the shareholder host has the transfer-in shareholder account and receives the transferred number of shares Send to the IRS host or tax declaration host through the smart contract address, allowing the IRS or tax declaration host to read the tax information through the tax officer account and audit the smart contract address to perform tax declaration.

In addition, the present invention discloses a transaction method that integrates stock transfer and tax declaration, which is applied in a blockchain network, and the steps include: providing peer-to-peer supervisory end hosts, company end hosts, and audits on the blockchain network. Host and shareholder host, among them, the supervisory host pre-publishes the account management smart contract containing the management account on the blockchain network, and allows the management account to set and manage the shareholder account, notary unit account, accountant account, and tax officer account ; The company-side host establishes shareholder accounts on the blockchain network to distribute to different shareholder-side hosts, where each shareholder account corresponds to a number of shares; when the shareholder-side host wants to transfer shares, it is transmitted through the blockchain transaction. The transfer request for the transfer of the shareholder account number, the shareholder account number and the transfer amount is transferred to the blockchain network; when the company-side host detects the transfer request on the blockchain network, financial statements are provided for review and calculation of the transfer request Tax information; after the financial statement is approved, the auditing host will sign the tax information with the account of the notary unit and the accountant, and generate the corresponding audit according to the signed tax information and pass the smart contract to publish it to the blockchain network And obtain the corresponding audited smart contract address; after the shareholder host with the transfer-out shareholder account is generated after the smart contract is approved, the transfer function will be executed to automatically transfer the shares equal to the transferred amount after the preset transfer conditions are met. The outgoing shareholder account is transferred to the inbound shareholder account; the shareholder host with the transferred shareholder account will send the audited smart contract address to the IRS host or tax declaration host after receiving the transferred amount of shares, allowing the IRS The host or tax declaration host reads tax information through the account of the tax officer and the smart contract address through the audit to perform tax declaration.

The system and method disclosed in the present invention are as described above. The difference from the prior art is that the present invention uses the company-side host to create a shareholder account on the blockchain network for distribution to the shareholder-side host. When the shareholder-side host wants to transfer shares, Blockchain transaction transfer request, so that the company-side host provides financial statements for review and calculation of the tax information of the transfer request, and after the financial statement is approved, the auditing host will sign and generate the corresponding audit and pass the smart contract , To allow the shareholder host to transfer shares and send the approved smart contract address to the IRS host or tax declaration host for tax declaration.

Through the above-mentioned technical means, the present invention can achieve the technical effect of improving the convenience of share transfer.

The following describes the implementation of the present invention in detail with the drawings and embodiments, so as to fully understand and implement the implementation process of how the present invention uses technical means to solve technical problems and achieve technical effects.

Before describing the trading system and method for integrating stock transfer and tax reporting disclosed in the present invention, the terms defined by the present invention will be explained first. The smart contract described in the present invention, for example: "Contract", "Approved smart contract", "Accountant account smart contract", "Tax officer account smart contract" and "Shareholder account smart contract", etc., all refer to the smart contract released (Deploy) on the blockchain network . In fact, the smart contract refers to a computer program that drives the execution of instructions based on established conditions and transmitted information. Specifically, the smart contract uses programming languages such as Solidity, Serpent, LLL, EtherScript, Sidechain, etc. It can include various functions, events, parameter states, etc., take "Ethereum" as an example. The smart contract is compiled to obtain binary code and apply binary interface ( Application Binary Interface, ABI) in order to broadcast the smart contract to the blockchain network, waiting for the miner or validator to put the smart contract on the blockchain and get the corresponding address (or called the contract address, Smart contract address), so far, the release of the smart contract is completed through the blockchain transaction. After that, each node can execute the corresponding smart contract and call the functions in it according to this address, and use different commands to change the state of the smart contract on the blockchain and detect whether the event is triggered.

The following diagrams will further illustrate the present invention’s trading system and method for integrating stock transfer and tax declaration. Please refer to "Figure 1" first. "Figure 1" is the system of the present invention for integrating stock transfer and tax reporting. The block diagram is applied to a blockchain network 100 composed of multiple node hosts connected point-to-point. This system includes: a supervisory end host 110, a company end host 120, an audit end host 130, and a shareholder end host 140. Among them, the supervisory end host 110 is one of the node hosts, which is used to pre-publish the account management smart contract containing the management account on the blockchain network 100, and allows the management account setting and management of shareholder accounts, notary unit accounts, and accountants to be managed. Account number and tax officer account number. In actual implementation, since the account management smart contract may not cover all accounts, you can publish the "Accountant Account Smart Contract" and store the accountant account in it; publish the "Tax Officer Account Smart Contract" and store the tax officer account in it; Publish the "Shareholder Account Smart Contract" and store the shareholder account in it. Then, store the address of the above-mentioned smart contract in the above-mentioned "account management smart contract".

The company host 120 is one of the node hosts, which is used to establish shareholder accounts on the blockchain network 100 and distribute them. Each shareholder account corresponds to a number of shares, and when the company host 120 is on the blockchain network 100 When a transfer request is detected, financial statements are provided for review and calculation of tax information for the transfer request. In actual implementation, the method of providing financial statements can be reviewed by the accountant of the audit unit through the Internet other than the blockchain network 100, as well as calculating the transaction value, cost, shareholders' equity, assets and liabilities, and so on. For example, outside the blockchain network 100, it is sent to the auditing unit for auditing in a wired or wireless manner, and when the auditing is passed, the auditing end host 130 set in the auditing unit generates an audited smart contract, and the auditing is passed The smart contract can include the pass date, tax information and its hash value. In addition, the company host 120 can pre-publish a shareholder account smart contract on the blockchain network 100 to store the shareholder account, and store the contract address of the shareholder account smart contract in the account management smart contract, so that the management account can be managed Shareholder account number in the smart contract.

The audit end host 130 is one of the node hosts, which is used to sign the tax information with the account of the notary unit and the accountant after the financial statement is approved, and generate the corresponding audit according to the signed tax information to pass the smart contract to Publish to the blockchain network 100, and obtain the corresponding audited smart contract address. In actual implementation, after the financial statements are signed by the accountant, the data with the results of shareholder equity, assets and liabilities can be uploaded to the blockchain network 100, providing smart contracts to capture whether the originally set transfer conditions are met, for example , The smart contract sets the stock price per share to be no less than 5 yuan to allow the two shareholders of A and B to trade. When the transfer request is generated, it can automatically verify whether the stock price has reached the preset value by uploading the data, assuming that the calculated stock price is 5.2 Since the stock price is not less than RMB 5, the transfer transaction will be executed automatically. In fact, the transfer conditions can include the minimum stock price, the transfer quantity limit, and the blacklist account. When the transfer conditions are not met or the transfer quantity is greater than the number of shares, the transfer request is cancelled and the transfer of shares equal to the transfer quantity from the shareholder account to the shareholder account is prohibited. Transfer to shareholder account. In addition, the auditing end host 130 can pre-publish the notary unit account smart contract and the accountant account smart contract on the blockchain network 100 to store the notary unit account and accountant account respectively, and combine the notary unit account smart contract with the accountant account smart contract The two contract addresses are stored in the account management smart contract, so that the management account can manage the notary unit account and accountant account.

Then, in the part of the shareholder host 140, each shareholder host 140 is one of the node hosts, and each shareholder host 140 includes: a transmission module 141, a transfer module 142, and a tax declaration module 143. Among them, the transmission module 141 is used to transmit the transfer request including the transfer of the shareholder account, the transfer of the shareholder account, and the transfer amount to the blockchain network 100 through the blockchain transaction when the shareholder host 140 wants to transfer the shares, and When the shares are transferred, the smart contract address is accepted and approved.

The transfer module 142 is connected to the transfer module 141, and is used to execute the transfer function after the shareholder host 140 has the transfer-out shareholder account and the smart contract is generated after the verification is passed. After the preset transfer conditions are met, the transfer amount will be equal to The shares are transferred from the transfer-out shareholder account to the transfer-in shareholder account. In actual implementation, the transfer conditions are preset in the transfer function, and may include the minimum stock price, the transfer quantity limit, the blacklist account number, and so on.

The tax declaration module 143 is connected to the transmission module 141 to send the audited smart contract address to the IRS host or tax declaration host after the shareholder host 140 has the transferred shareholder account and receives the transferred amount of shares, allowing the country The tax bureau host or the tax declaration host reads the tax information through the tax officer account and audited the smart contract address to perform the tax declaration. In actual implementation, the IRS host or tax declaration host is still a node host set in the blockchain network 100 to read tax information from the blockchain. In addition, the IRS host or tax declaration host can also publish smart contracts on the blockchain network 100, so as to directly call the functions in the smart contract to complete tax declarations, and pre-publish tax personnel on the blockchain network 100 The account smart contract is used to store the tax official account, and the contract address of this tax official account smart contract is stored in the account management smart contract, so that the management account can manage the tax official account. In fact, the purpose of storing the account of the tax officer is to allow the tax officer of the IRS or tax reporting agency to conduct audits and tax declarations based on the blockchain data during the tax filing process. In other words, only the tax officer account pre-set in the tax officer account smart contract has the authority to execute the smart contract for audit and tax declaration.

In particular, it should be noted that, in actual implementation, each module described in the present invention can be implemented in various ways, including software, hardware, or any combination thereof. For example, in some embodiments, each module can be It can be implemented by software and hardware or one of them. In addition, the present invention can also be implemented partially or completely based on hardware. For example, one or more modules in the system can be implemented through integrated circuit chips, System on Chip (SoC), Complex Programmable Logic Device (CPLD), Field Programmable Gate Array (FPGA), etc. are implemented. The invention can be a system, a method and/or a computer program. The computer program may include a computer-readable storage medium loaded with computer-readable program instructions for enabling a processor to implement various aspects of the present invention. The computer-readable storage medium may be a tangible that can hold and store instructions used by an instruction execution device. equipment. The computer-readable storage medium can be, but is not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. More specific examples (non-exhaustive list) of computer-readable storage media include hard disks, random access memory, read-only memory, flash memory, optical disks, floppy disks, and any suitable combination of the foregoing. The computer-readable storage medium used herein is not interpreted as the instantaneous signal itself, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (for example, optical signals through fiber optic cables), or through wires Transmission of electrical signals. In addition, the computer-readable program instructions described herein can be downloaded from a computer-readable storage medium to various computing/processing devices, or downloaded via a network, such as the Internet, a local area network, a wide area network, and/or a wireless network. To an external computer device or external storage device. The network may include copper transmission cables, optical fiber transmission, wireless transmission, routers, firewalls, switches, hubs and/or gateways. The network card or network interface in each computing/processing device receives computer-readable program instructions from the network, and forwards the computer-readable program instructions for storage in the computer-readable storage medium in each computing/processing device middle. The computer program instructions that perform the operations of the present invention can be combined language instructions, instruction set architecture instructions, machine instructions, machine-related instructions, micro instructions, firmware instructions, or source code or object code written in any combination of one or more programming languages (Object Code), the programming language includes object-oriented programming languages, such as: Common Lisp, Python, C++, Objective-C, Smalltalk, Delphi, Java, Swift, C#, Perl, Ruby and PHP, etc., as well as conventional programs Procedural programming language, such as C language or similar programming language. Computer-readable program instructions can be executed entirely on the computer, partly on the computer, executed as a stand-alone software, partly on the client computer and partly on the remote computer, or entirely on the remote computer or server Executed on.

Please refer to "Figure 2A" and "Figure 2B". "Figure 2A" and "Figure 2B" are the flow chart of the method of integrating stock transfer and tax declaration transaction method of the present invention, which is applied to the blockchain network 100 The steps include: providing the supervisory end host 110, the company end host 120, the audit end host 130, and the shareholder end host 140 that are point-to-point connected to each other in the blockchain network 100. The network 100 publishes an account management smart contract that includes a management account, and allows the management account to set and manage shareholder accounts, notary unit accounts, accountant accounts, and tax personnel accounts (step 210); the company host 120 is on the blockchain network 100 Create shareholder accounts to distribute to different shareholder hosts 140, where each shareholder account corresponds to a number of shares (step 220); when the shareholder host 140 wants to transfer out shares, transfer through the blockchain transaction including the transfer of shareholder accounts , The transfer request to the shareholder account and the transfer amount to the blockchain network 100 (step 230); when the company-side host 120 detects the transfer request on the blockchain network 100, it provides financial statements for review and calculation The tax information of this transfer request (step 240); after the financial statement is approved, the audit host 130 signs the tax information with the account of the notary unit and the accountant, and generates the corresponding audited intelligence based on the signed tax information The contract is published to the blockchain network 100 and the corresponding approved smart contract address is obtained (step 250); the shareholder host 140 with the transfer-out shareholder account will execute the transfer function after the smart contract is generated after the verification is passed to meet the requirements. After setting the transfer conditions, transfer the shares equal to the transferred amount from the transfer-out shareholder account to the transfer-in shareholder account (step 260); the shareholder host 140 with the transfer-in shareholder account will review the transferred shares after receiving the transferred number of shares Send to the IRS host or tax declaration host through the smart contract address, allowing the IRS or tax declaration host to read the tax information through the tax officer account and audit the smart contract address to perform tax declaration (step 270). Through the above steps, a shareholder account can be created on the blockchain network 100 through the company-side host 120 to be distributed to the shareholder-side host 140. When the shareholder-side host 140 wants to transfer shares, the transfer request is sent through the blockchain transaction, so that The company-side host 120 provides financial statements for review and calculation of the tax information of the transfer request, and after the financial statement is approved, the audit-side host 130 will sign and generate the corresponding audited smart contract to allow the shareholder-side host 140 Transfer shares and send the approved smart contract address to the IRS host or tax declaration host for tax declaration.

The following description will be given in conjunction with "Figure 3" and "Figure 4" in the form of an embodiment. Please refer to "Figure 3" first. "Figure 3" is a schematic diagram of applying the present invention to transfer shares. Assuming that shareholder A wants to transfer shares to shareholder B, shareholder A can open the transfer shares window 300, and enter shareholder B’s shareholder account number in the input block 311 as the transfer shareholder account number, and type no more than display in the input block 313 The number of shares displayed in block 312 is used as the transfer amount. Then, after clicking the transfer component 320, a transfer request including the transfer-out shareholder account (ie: shareholder A's shareholder account), the transfer-in shareholder account, and the transfer amount will be sent to the blockchain network 100 through the blockchain transaction. At this time, the company host 120 will detect the transfer request on the blockchain network 100, and provide financial statements to the auditing unit for review and calculation of tax information for the transfer request. When the audit unit passes the audit, it will sign the calculated tax information with the notary unit account and accountant account through the audit terminal host 130, and generate a corresponding audited smart contract based on the signed tax information to pass the audit The smart contract is published to the blockchain network, and its corresponding audited smart contract address is obtained. Next, after the shareholder host 140 with the transfer-out shareholder account (ie: shareholder A’s shareholder host 140) has passed the smart contract generation, it executes the transfer function so that after the preset transfer conditions are met, the transfer amount will be Equal shares are transferred from the transfer-out shareholder account to the transfer-in shareholder account, and the shareholder host 140 with the transfer-in shareholder account (ie: shareholder B’s shareholder host 140) will pass the smart check after receiving the transferred number of shares The contract address is sent to the IRS host or tax declaration host to allow the IRS or tax declaration host to read the tax information from the blockchain to perform tax declarations through the verification of the smart contract address.

As shown in "Figure 4", "Figure 4" is a schematic diagram of applying the present invention to confirm the result of tax declaration. In actual implementation, the IRS host or tax declaration host can display the declaration result in the browse window 400 as shown in "Figure 4" after the tax declaration is completed. For example, they can be displayed in the display block 410 respectively. Transfer-in shareholder account, transfer-out shareholder account, transfer quantity, completion time of declaration, declaration number and declared amount, etc. Among them, the time of completion of the declaration, the declaration number and the declared amount are automatically generated by the tax information loaded from the blockchain when the IRS host or the tax declaration host executes the tax declaration. In actual implementation, you can also directly use the hash value of the tax information as the declaration number.

To sum up, it can be seen that the difference between the present invention and the prior art is that the shareholder account is created on the blockchain network through the company-side host to distribute to the shareholder-side host. When the shareholder-side host wants to transfer shares, it is through the blockchain The transaction transfer request allows the host of the company to provide financial statements for review and calculation of the tax information of the transfer request, and after the financial statement is approved, the host of the auditing end will sign and generate the corresponding review and pass the smart contract to allow Shareholder host transfers shares and sends the review through the smart contract address to the IRS host or tax declaration host for tax declaration. This technical method can solve the problems of the previous technology and improve the convenience of share transfer The technical effect.

Although the present invention is disclosed in the foregoing embodiments as above, it is not intended to limit the present invention. Anyone familiar with similar art can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of patent protection shall be subject to the definition of the scope of patent application attached to this specification.

100: Blockchain network 110: Supervisor host 120: company-side host 130: Audit host 140: Shareholder host 141: Transmission module 142: Transfer Module 143: Tax declaration module 300: Transfer stock window 311, 313: input block 312: display block 320: transfer element 400: browse window 410: display block Step 210: Provide a supervisory end host, a company end host, an audit end host, and multiple shareholder end hosts that are point-to-point connected to each other on the blockchain network, wherein the supervisory end host is published in the blockchain network in advance An account management smart contract that includes a management account, and allows the management account to set and manage multiple shareholder accounts, at least one notary account, at least one accountant account, and at least one tax officer account Step 220: The company-side host establishes the shareholder account on the blockchain network for distribution to different shareholder-side hosts, wherein each shareholder account corresponds to a quantity of shares Step 230: When the shareholder host wants to transfer out shares, a transfer request including a transfer-out shareholder account number, a transfer-in shareholder account number, and a transfer amount is sent to the blockchain network through a blockchain transaction Step 240: When the company-side host detects the transfer request on the blockchain network, it provides a financial statement for review and calculation of a tax information for the transfer request Step 250: After the auditing end host passes the audit of the financial statement, it signs the tax information with the account of the notary unit and the accountant of the accountant, and generates a corresponding audited intelligence based on the signed tax information. The contract can be published to the blockchain network and obtain a corresponding approved smart contract address Step 260: The shareholder host with the transfer-out shareholder account will execute a transfer function after the smart contract is generated after the review is passed, so that after a preset transfer condition is met, the shares equal to the transfer amount will be transferred from the transfer function. The transfer-out shareholder account is transferred to the transfer-in shareholder account Step 270: After the shareholder host with the transferred shareholder account receives the transferred amount of shares, the approved smart contract address is sent to an IRS host or a tax declaration host to allow the IRS The host or the tax declaration host reads the tax information through the tax officer account and the audited smart contract address to perform tax declaration

Figure 1 is a system block diagram of a trading system integrating stock transfer and tax declaration according to the present invention. Figures 2A and 2B are flow charts of the method of integrating stock transfer and tax reporting of the present invention. Figure 3 is a schematic diagram of applying the present invention to transfer shares. Figure 4 is a schematic diagram of applying the present invention to confirm the result of tax declaration.

100: Blockchain network

110: Supervisor host

120: company-side host

130: Audit host

140: Shareholder host

141: Transmission module

142: Transfer Module

143: Tax declaration module

Claims (10)

A trading system that integrates stock transfers and tax declarations is applied in a blockchain network composed of multiple node hosts connected point-to-point. The system includes: A supervisory end host, the supervisory end host is one of the node hosts, used to pre-publish an account management smart contract containing a management account on the blockchain network, and allow the management account to set and manage multiple One shareholder account number, at least one notary account number, at least one accountant account number, and at least one tax officer account number; A company-side host, the company-side host is one of the node hosts, used to establish and distribute the shareholder accounts on the blockchain network, where each shareholder account corresponds to a number of shares, and when the When the company-side host detects a transfer request on the blockchain network, it provides a financial statement for review and calculation of a tax information for the transfer request; An audit host, the audit host is one of the node hosts, used to sign the tax information with the account of the notary unit and the account of the accountant after the financial statement is approved, and according to the signature The tax information after the chapter generates a corresponding approved smart contract to publish to the blockchain network, and obtains a corresponding approved smart contract address; and Multiple shareholder-side hosts, each shareholder-side host is one of the node hosts, and each shareholder-side host includes: A transmission module used to transmit the transfer request including a transfer-out shareholder account number, a transfer-in shareholder account number, and a transfer amount to the blockchain when the shareholder host wants to transfer out shares through a blockchain transaction Internet, and when transferring shares, the smart contract address that received the review; A transfer module, connected to the transfer module, is used to execute a transfer function after the shareholder host has the transfer-out shareholder account and the review is generated through the smart contract to satisfy a preset transfer condition, Transfer the shares equal to the transfer amount from the transfer-out shareholder account to the transfer-in shareholder account; and A tax declaration module, connected to the transmission module, used to send the audited smart contract address to an IRS host or after the shareholder host has the transferred shareholder account and received the transferred amount of shares A tax declaration host that allows the IRS or the tax declaration host to read the tax information through the tax officer account and the audited smart contract address to perform tax declaration. According to item 1 of the scope of patent application, the trading system integrating stock transfer and tax declaration, the auditing terminal host allows to pre-publish a smart contract for a notary unit account and a smart contract for an accountant account on the blockchain network for separate storage The account number of the notary unit and the accountant account, the host of the IRS or the host of the tax declaration allows to pre-publish a smart contract of the tax official account on the blockchain network to store the account of the tax official, and the company end The host allows to pre-publish a shareholder account smart contract on the blockchain network to store the shareholder account, and store the contract address of the notary unit’s smart contract and the accountant’s smart contract in the account management smart contract. The contract address, the contract address of the smart contract of the tax officer account and the contract address of the smart contract of the shareholder account. According to item 1 of the scope of patent application, the integrated stock transfer and tax reporting transaction system, where the financial statement is outside the blockchain network and is sent to an auditing unit for review by wired or wireless means, and is being reviewed When passed, the audit end host set in the audit unit generates the approved smart contract, and the approved smart contract includes the passed date, the tax information and its hash value. According to the first item of the scope of patent application, the integrated stock transfer and tax declaration trading system, where the transfer conditions include the minimum stock price, the transfer quantity limit and the blacklist account number. When the transfer conditions are not met or the transfer quantity is greater than the number of shares, Cancel the transfer request and prohibit the transfer of shares equal to the transfer amount from the transfer-out shareholder account to the transfer-in shareholder account. According to the first item of the patent application, the stock transfer and tax declaration transaction system is integrated, wherein the IRS host or the tax declaration host is one of the node hosts of the blockchain network for receiving When the smart contract address is passed through the audit, the tax officer account is used to read the tax information from the blockchain to perform tax declaration. A transaction method that integrates stock transfer and tax declaration, applied in a blockchain network, and its steps include: The blockchain network provides a supervisory end host, a company end host, an audit end host, and multiple shareholder end hosts that are connected point-to-point with each other. One account management smart contract for the management account, and allows multiple shareholder accounts, at least one notary account, at least one accountant account, and at least one tax officer account to be set and managed by the management account; The company-side host establishes the shareholder account on the blockchain network for distribution to different shareholder-side hosts, wherein each shareholder account corresponds to a number of shares; When the shareholder host wants to transfer out shares, a transfer request including a transfer-out shareholder account, a transfer-in shareholder account, and a transfer amount is sent to the blockchain network through a blockchain transaction; When the company-side host detects the transfer request on the blockchain network, it provides a financial statement for review and calculation of a tax information for the transfer request; After the auditing end host has passed the audit of the financial statement, it will sign the tax information with the account of the notary unit and the account of the accountant, and generate a corresponding audited smart contract based on the signed tax information to release Go to the blockchain network and obtain a corresponding approved smart contract address; The shareholder host with the transfer-out shareholder account will execute a transfer function after the smart contract is generated through the review and execute a transfer function to transfer shares equal to the transfer amount from the transfer-out shareholder after meeting a preset transfer condition The account is transferred to the transferred shareholder account; and After receiving the transferred amount of shares, the shareholder host with the transferred shareholder account will send the approved smart contract address to an IRS host or a tax declaration host, allowing the IRS host or the The tax declaration host reads the tax information through the tax officer account and the audited smart contract address to perform tax declaration. According to the 6th item of the scope of patent application, the transaction method of integrating stock transfer and tax declaration, the auditing terminal host allows to pre-publish a smart contract of a notary unit account and a smart contract of an accountant account on the blockchain network for separate storage The account number of the notary unit and the accountant account, the host of the IRS or the host of the tax declaration allows to pre-publish a smart contract of the tax official account on the blockchain network to store the account of the tax official, and the company end The host allows to pre-publish a shareholder account smart contract on the blockchain network to store the shareholder account, and store the contract address of the notary unit’s smart contract and the accountant’s smart contract in the account management smart contract. The contract address, the contract address of the smart contract of the tax officer account and the contract address of the smart contract of the shareholder account. According to the transaction method of integrated stock transfer and tax filing in the 6th item of the scope of patent application, the financial statement is outside the blockchain network and is sent to an auditing unit for review by wire or wireless, and is being reviewed When passed, the audit end host set in the audit unit generates the approved smart contract, and the approved smart contract includes the passed date, the tax information and its hash value. According to the transaction method of integrated stock transfer and tax declaration in item 6 of the scope of patent application, the transfer conditions include the minimum stock price, the transfer quantity limit and the blacklist account number. When the transfer conditions are not met or the transfer quantity is greater than the number of shares, Cancel the transfer request and prohibit the transfer of shares equal to the transfer amount from the transfer-out shareholder account to the transfer-in shareholder account. According to the transaction method of integrated stock transfer and tax declaration according to item 6 of the scope of patent application, the IRS host or the tax declaration host is one of the node hosts of the blockchain network for receiving When the smart contract address is passed through the audit, the tax officer account is used to read the tax information from the blockchain to perform tax declaration.

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