How bulk grain (third-party) trading platforms can solve the issue of merchants on the platform obtaining input VAT invoices, bridging the last mile of tax compliance in agricultural product procurement

I. Core pain points and policy background of tax compliance in bulk grain trading

In bulk grain transactions, merchants on third-party platforms have long faced three core pain points: difficulty obtaining input VAT invoices, non-compliant tax processes, and high audit risk. Under the traditional model, grain sellers are mostly individual farmers or small growers (natural persons) without the qualification to issue VAT invoices, causing purchasing merchants to record business only through methods such as "IOU bookkeeping" and "cash transactions." They can neither deduct VAT nor corporate income tax, and may also trigger tax audits due to inconsistency among the "order, funds, and invoice" three flows; at the same time, the regulatory upgrade of "tax governance through data" under China Golden Tax Phase IV further requires enterprises to achieve the unity of the "contract flow, fund flow, invoice flow, and goods flow" four flows, and traditional operating models can no longer meet compliance requirements.

At the policy level, the state has provided a clear basis for tax compliance in agricultural product purchases:

- Reverse invoicing policy support:As early as 2018Fujian Province Regulations on the Use of VAT General Invoices (Purchases) (Announcement No. 8 of 2018)ThenStandardizationcompletedUsage standards for agricultural product purchase invoices, clarifying the invoicing entity, process, and deduction rules.In 2024,State Taxation Administration Announcement No. 5 of 2024 clarifies the rules for "reverse invoicing by resource recycling enterprises to individuals." Extended to the agricultural products sector, qualified grain purchasing enterprises may issue purchase invoices directly to farmers。

- Invoice issuance for individuals policy adaptation:In the context of China Golden Tax Phase IV, small and medium-sized enterprises without reverse invoicing qualifications can obtain compliant vouchers through invoice issuance for individuals. In the requirements of "increasing convenience and increasing standardization," the State Taxation Administration supports completing the full process of invoice issuance for individuals through the electronic tax bureau. Data from the Guixi Municipal Tax Bureau in 2025 shows that the access rate of "invoicing upon payment" and "three-flow integration reverse invoicing" for agricultural product procurement has reached 100%, providing practical reference for platform-based implementation.

II. Core scenario one: reverse invoicing solution for qualified grain procurement enterprises

For settled merchants that have obtained the "qualification for issuing agricultural product purchase invoices," third-party trading platforms can directly solve input invoice acquisition and compliance issues through the "invoicing upon payment + three flows in one closed loop" model, with a process design fully aligned withVarious policiesRequire.

1. Full-process operational logic

▪ Order creation and information verification

The acquiring enterprise initiates a grain purchase order on the platform, entering grain category, quantity, unit price, and farmer information. The platform automatically verifies the authenticity of the farmer's identity and generates a unique order number, while simultaneously retaining "goods flow" information such as grain origin and transportation method, laying the foundation for subsequent four-flow integration.

▪ Real-time fund payment and voucher retention

The platform connects to the UnionPay Merchant Services payment system. Enterprises initiate payments to farmers through the platform: funds are transferred directly to farmers' bank cards, with no withdrawal fees borne by farmers, and real-time arrival with no per-transaction or daily limits is supported; after payment is completed, the platform automatically generates payment vouchers recording the transaction serial number, payment time, and bank account information, achieving real-time binding of the "fund flow" and "order flow."

▪ Automated reverse invoicing and tax connection

After the funds arrive, the platform automatically initiates a reverse invoicing application to the local tax bureau based on the order information (connected to the Electronic Tax Bureau interface), issuing a "VAT General Invoice (Purchase)". The invoice information includes key content such as the purchasing enterprise (buyer), farmer (seller), grain details, tax rate (agricultural products apply a 9% deduction rate, and deep-processing enterprises may deduct 10%); after the invoice is generated, it is simultaneously pushed to the enterprise backend and the farmer mini-program. Enterprises can directly download it for input VAT deduction, and farmers can retain the electronic voucher for future reference.

2. Platform core supporting functions

- Embedded tax rules: automatically match agricultural product purchase invoice policies of different provinces, avoiding invalid invoices caused by policy differences.

- Three flows in one verification: the system compares key information of orders, payments, and invoices in real time; if there is any inconsistency, it triggers an alert and blocks the invoicing process, reducing the risk of false invoicing.

- Batch operation adaptation: supports creating multiple farmer purchase orders at once, completing payment and invoicing in batches, adapting to the "centralized procurement, high-frequency transactions" characteristics of bulk grain, and compressing traditional manual operations from "hours" to "minutes."

III. Core scenario two: invoice issuance for individuals solution for enterprises without reverse invoicing qualifications

For small and medium-sized merchants that have not obtained the qualification for issuing purchase invoices (such as small grain dealers and regional purchase points), the platform needs to help merchants obtain compliant input invoices through the "full-process online invoice issuance for individuals" model. The process design refers to the Technical Plan for General Invoice Issuance for Individuals Platform (Kailing Technology practice case), ensuring compliance with China Golden Tax Phase IV's "tax control by data" requirements.

1. Full-process operational logic

▪ Farmer real-name authentication and registration

After the merchant initiates an invoice issuance request, the farmer completes registration through the platform mini program: only a mobile number + SMS verification code are required, followed by facial recognition authentication（No need to jump to APP）Complete real-name authentication, and the system automatically retains front and back photos of the farmer's ID card and facial comparison results to ensure the "seller" identity is authentic and valid.

▪ Agency issuance information entry and verification

Farmers fill in invoicing information on the platform: including the invoice recipient's name, taxpayer identification number, grain sales details, and taxable place of occurrence; the platform has a built-inAll provincesTax rule library; if errors exist, the system prompts corrections in real time.

▪ Bureau-side review and tax payment

After information submission, the platform pushes the invoice issuance application to the local tax bureau for review: ordinary grain sales invoice issuance falls within the "instant approval" scope, and review time for special cases does not exceed 1 hour; after approval, the platform supports three tax and fee payment methods:

- Merchant batch withholding: merchants pre-deposit funds through the platform, and the system automatically pays VAT and other taxes on behalf of farmers;

- Farmers pay independently: farmers complete payment by scanning the payment QR code generated by the platform via WeChat/Alipay;

- UnionPay payment: merchants bind a dedicated bank card, and the platform automatically fills in the card number and reserved mobile number, then completes payment after obtaining the verification code.

▪ Invoice acquisition and individual income tax processing

After tax and fee payment is completed, the tax bureau automatically issues an e-invoice, and the platform simultaneously downloads and pushes it to the merchant backend; at the same time, the platform reminds merchants to withhold and remit farmers' individual income tax through the "Individual Electronic Tax Bureau" before the 15th of the following month, and exports invoice issuance data to connect with individual income tax filing data, avoiding invoices being unable to be booked due to failure to withhold individual income tax.

2. Platform core supporting functions

- Simplified operation design: farmers only need 3 steps to complete invoice issuance for individuals, with face scanning, information verification, and other steps automatically completed by the platform, lowering the operational threshold for farmers.

- Evidence chain archiving: automatically retain all vouchers in the invoice issuance for individuals process to form a complete business evidence chain that supports one-click retrieval during tax bureau audits.

- Individual income tax filing reminder: set up an "individual income tax withholding countdown" and provide filing operation guides, avoiding tax risks caused by merchants missing filings.

IV. The overall value of the platform empowering bulk grain transactions

Through the above two major scenario solutions, third-party trading platforms fully open up the “last mile” of tax compliance in the agricultural product procurement process, bringing three core values to merchants on the platform:

▪ Compliance Improvement: Avoiding Tax Risks

- Solve the "white slip accounting" problem; enterprises can obtain compliant input VAT invoices for deduction, avoiding overpayment of corporate income tax due to lack of vouchers;

- Achieve "four-flow integration" in compliance with China Golden Tax Phase IV regulatory requirements, reducing the probability of tax audits.

▪ Efficiency improvement: Reducing operating costs

- Online processes replace manual errands, compressing single-invoice processing time from "3 days" to "10 minutes" and reducing labor costs by 80%;

- Batch operations adapt to bulk transaction needs, reducing repetitive work and improving procurement efficiency.

▪ Industry Empowerment: Driving Digital Transformation

- Provide an integrated "transaction + payment + tax" solution for bulk grain transactions, breaking the traditional inefficient model of "offline transactions, manual processing";

- Accumulate transaction data to provide data support for subsequent supply chain finance and market analysis, helping the industry upgrade digitally.

The tax compliance problem of bulk grain trading platforms is essentially a balance between business authenticity and process efficiency. ThroughKailing TechnologyWith the dual-track solution of "reverse invoicing + invoice issuance for individuals," the platform can effectively solve merchants' difficulty in obtaining input VAT invoices and achieve closed-loop management of the tax flow.

Consult Kailing Technology to obtain a detailed solution:https://www.kailingteck.com/h-col-127.html 。

As a comprehensive business-finance-tax digitalization solution service provider, Kailing Technology provides business-finance-tax management digital transformation products and operational services for various government agencies, institutions, and large, medium, and small enterprises. The product line includes:

Solutions for sales contract management system, procurement contract management system, fully digitalized Leqi interface project, automatic output VAT invoicing system, invoice issuance for individuals system, employee expense control and reimbursement system, input VAT invoice management system, supply chain collaborative reconciliation system, imaging OCR recognition system, automatic financial bookkeeping system, electronic accounting archives system and other businesses, comprehensively advancing the digitalization process across various fields.

If you have any business-finance-tax digital transformation needs, welcome to contact us. Beijing Kailing Technology will serve you wholeheartedly.