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How can individuals issue invoices to enterprises compliantly? Kailing Technology connects to tax app interfaces, making every expert fee verifiable

Published: 2026-03-03 17:34

Under the strict regulation of China Golden Tax Phase IV's "tax governance by data," the compliance of invoicing after individuals provide services to enterprises has become a core pain point troubling both enterprises and individuals. Without compliant invoices, enterprises cannot make pre-tax deductions and face risks of inflated profits and tax audits; individuals face cumbersome processes, difficult-to-understand policies, and complex tax calculations. By connecting tax APP interfaces, Kailing Technology has built a compliant invoice issuance solution for individuals, making the invoicing of expert fees, labor fees, and other personal income fully compliant and traceable throughout the process, thoroughly solving the industry dilemma of "difficult invoicing and difficult compliance."


I. Policy Foundation: The Core Prerequisite for Individual Invoicing Compliance

The compliance of individuals issuing invoices to enterprises first stems from the explicit requirements of national tax policies, which are the foundational rules for all operations.

The《Value-Added Tax Law》effective from January 1, 2026, mandates that units and individuals must issue, use, and obtain invoices in accordance with regulations when purchasing and selling goods or providing or accepting business services, and expenditures without compliant invoices shall not serve as pre-tax deduction vouchers for corporate income tax. The《Law of the People's Republic of China on the Administration of Tax Collection》further clarifies that tax authorities are the competent authorities for invoices, responsible for full-process supervision, and invoice issuance must be based on lawful and valid vouchers to ensure business authenticity.

Local levels are also continuously promoting compliant invoice issuance for individuals. For example, the Shaanxi Provincial Development and Reform Commission explicitly requires that labor remuneration for bid evaluation and review experts must be issued as VAT invoices in accordance with the law, with the payer withholding and remitting individual income tax. These policies all point to one core principle: individuals providing services to enterprises must issue compliant invoices and must meet the three major requirements of "authentic business, complete vouchers, and tax compliance," which is also the policy starting point of Kailing Technology's solution.

At the same time, the scope of invoicing for individuals is clearly defined, covering four major categories: goods, labor services, services, and intangible assets. Among them, common scenarios such as expert fees, lecture fees, and consulting fees all fall under subdivided categories within the "services" category, fully conforming to the policy-permitted scope of invoice issuance for individuals and providing a clear basis for compliant invoicing.


II. Compliance key: core operating principles for individual invoicing

For individuals to issue invoices to enterprises safely and compliantly, they need to follow the core logic of "consistency of four flows + complete evidence chain," which is also the design core of Kailing Technology's solutions, and consistency of four flows is the core criterion for tax audits under China Golden Tax Phase IV.

(1) Four flows consistency is the bottom line

The "four flows" are contract flow, business flow, capital flow, and invoice flow. The four must be highly matched and correspond one-to-one, forming a complete business closed loop. This is the core bottom line of individual invoicing compliance:

1. Contract flow: individuals and enterprises need to sign a formal labor agreement or service contract, specifying key information such as service content, service period, remuneration amount, invoicing requirements, and rights and responsibilities of both parties, as the legal basis for conducting business;

2. Business flow: services provided by individuals to enterprises must genuinely occur, and complete business process records must be retained, such as sign-in sheets for expert lectures, communication minutes for consulting services, and deliverable confirmation forms for technical services, ensuring the business flow is traceable and verifiable;

3. Capital flow: the enterprise must pay service remuneration directly to the designated bank account of the invoicing individual, avoiding cash transactions, third-party payment on behalf, and similar situations. Transfer records must indicate the service item to ensure the capital flow is consistent with the business and contract;

4. Invoice flow: The issuer (individual), recipient (enterprise), service items, amount, place of taxable occurrence and other information on the invoice must fully match the core information of the contract flow, business flow and fund flow, with no information mismatch or amount discrepancy.

(II) A Complete Evidence Chain Is the Guarantee

Under China Golden Tax Phase IV, tax authorities' invoice verification has shifted from single-invoice verification to full business chain verification. Therefore, in addition to ensuring the consistency of the four flows, a complete supporting evidence chain must be retained: including service deliverable certificates, payment vouchers, tax payment certificates, etc. These materials must be archived in association with the four-flow materials to ensure that every expert fee is "traceable," forming a complete system of proof for business authenticity.

(3) Tax handling must be precise

The tax types and calculation methods involved in individual invoicing directly affect compliance, and tax treatment rules differ across business types

These complex tax rules are precisely the difficulty of individual invoicing, and Kailing Technology's intelligent tax calculation function can automatically match local policies to complete precise tax amount calculations, avoiding tax risks caused by human error.


III. Solution implementation: Kailing Technology connects tax interfaces to make invoicing simpler and more compliant

In response to the pain points of individual invoicing, Kailing Technology has opened up Electronic Tax Bureau interfaces through technological innovation, building an invoice issuance for individuals solution featuring full-process online operation, minimalist operation, and a compliance closed loop, especially suitable for high-frequency scenarios such as expert fees and labor fees, ensuring four-stream consistency at the technical level and making invoicing compliant and convenient.

(1) Core Breakthrough: Deep Integration with Tax APP Interfaces, Saying Goodbye to Cumbersome Operations

Traditional individual invoicing requires downloading a tax app, queuing offline, and manually filling in information—a complex and time-consuming process with extremely low expert cooperation. Kailing Technology's core advantage is integrating the electronic tax bureau app functions into enterprise business systems or mobile H5/mini-programs, so individuals need no additional downloads or redirects and can complete the entire process within one platform:

- Registration and authentication: supports two methods, facial recognition or UnionPay bank card recognition. You only need to enter basic information such as ID number, name, and mobile phone number, and complete SMS verification or face scan verification to register an electronic tax bureau account. In Beijing, face scanning is not even required, further simplifying the operation;

- Information entry: the system automatically pre-fills the basic information of the invoicing party (individual) and the invoice recipient (enterprise). Individuals only need to confirm key content such as service items and amounts. Complex fields such as the place where the taxable event occurs can be directly passed in from the business side without manual selection, ensuring that invoice information is consistent with the business flow;

- Review and tax payment: after submitting an application, the tax bureau completes review within 10-60 minutes on working days. After approval, you can choose enterprise payment on behalf or individual QR code tax payment. After successful tax payment, an invoice is generated in real time, and the fund payment record is automatically associated with the invoice and contract;

- Invoice acquisition: electronic invoices and tax payment certificates can be downloaded directly online and obtained synchronously by the enterprise, without mailing, realizing a full-process closed loop of "application-review-tax payment-invoicing-archiving," with the average time compressed from the traditional 3-5 days to within 20 minutes.

Solution implementation: Kailing Technology connects tax interfaces to make invoicing simpler and more compliant

(2) Compliance upgrade: automatic archiving of the "four flows consistency" evidence chain

Kailing Technology's solution strictly follows the requirements of China Golden Tax Phase IV, taking four-flow consistency as its core design principle. The system automatically collects and associates full materials such as contracts, service process records, payment vouchers, invoices, and tax payment certificates to form a complete "four-flow consistency" evidence chain. Every invoice can be traced back to a specific business scenario. When enterprises later face tax audits, they can retrieve all associated four-flow materials with one click without manual organization, completely avoiding risks such as "booking against white slips" and "false invoicing."

At the same time, the system encrypts the storage and transmission of sensitive information such as personal ID numbers, bank card numbers, and contact information, strictly complies with the requirements of the Personal Information Protection Law, implements tiered permission management, ensures information security is not leaked, and retains full operation logs for audit.

Solution implementation: Kailing Technology connects tax interfaces to make invoicing simpler and more compliant

(3) Enterprise-side empowerment: unified dashboard + individual income tax filing collaboration

In response to enterprise management needs, Kailing Technology provides a visual management dashboard. Enterprises can view in real time the invoicing progress, tax payment status, and invoice archiving status of all individuals under them, as well as the four-stream material matching status corresponding to each invoice, without needing to contact individuals one by one, greatly reducing management costs.

In the individual income tax declaration stage, the system seamlessly coordinates with the Natural Person Electronic Tax Bureau (withholding end), automatically reminding enterprises to complete individual income tax withholding and remittance before the 15th of the following month, avoiding invoice invalidation due to missed or late payments. Enterprises can directly obtain the four-flow data required for individual income tax declaration through the system without manual entry, ensuring accurate and efficient declaration.

Solution implementation: Kailing Technology connects tax interfaces to make invoicing simpler and more compliant


IV. Differentiated highlights: More than invoicing, building a full-cycle compliance system

Compared with traditional invoicing methods or flexible employment platforms, Kailing Technology's invoice issuance for individuals solution has three core differentiated advantages, the core of which is fundamentally ensuring the consistency of the four flows, in line with the regulatory requirements of China Golden Tax Phase IV:

1. Stronger compliance: no reliance on entrusted collection qualifications, direct connection to the electronic tax bureau, consistency between the place of business occurrence and the place of tax payment, precise matching of service items with invoice categories, avoiding compliance risks such as cross-regional entrusted collection and mismatched income nature, ensuring the consistency of the four flows at the technical level, and fully complying with the penetrating regulatory requirements of China Golden Tax Phase IV;

2. Simpler operation: No need for individuals to download tax apps, no need for enterprises to manually assist in organizing four-flow materials. Guided operation throughout the process from registration to invoicing, supporting voice prompts and graphic assistance, adaptable to individual users of different educational levels, greatly improving individual cooperation;

3. Deeper services: Not only solving invoicing issues, but also providing full-cycle services such as tax calculation, four-flows-consistent evidence chain archiving, individual income tax filing coordination, and red-letter reversal and tax refunds. Enterprises can embed the solution into their own business systems via API/SDK to achieve an "embedded experience," allowing users to complete invoicing without leaving the current application while ensuring seamless connection between business data and invoicing data.


The compliance of individuals issuing invoices to enterprises hinges on genuine business, consistency of the four flows, and complete evidence. By connecting to tax app interfaces, Kailing Technology transforms complex tax policies and the compliance requirements of four-flow consistency into an extremely simple online operation process, making invoicing for various types of individual income such as expert fees and labor service fees zero-threshold, fully compliant, and traceable.

Today, with increasingly strict tax regulation, this solution not only helps enterprises avoid tax risks and reduce management costs, but also provides individuals with a convenient and efficient invoicing channel, achieving a win-win for enterprises and individuals. In the future, Kailing Technology will continue to deepen its work in the business-finance-tax digitalization field, adapt to more industry scenarios and regional policy differences, continuously optimize the intelligent management capability of the four-flows-consistent evidence chain, make compliant invoicing a "bonus" for enterprise operations, and contribute more strength to business-finance-tax compliance in the digital economy era.

If you need to further understand a certain industryA certain scenario's specific invoicing solution, or if you want to obtain personalizedSolution interpretation, communicate at any time to obtain exclusive servicehttps://www.kailingteck.com/h-col-126.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:

Sales contract management system, procurement contract management system, fully digitalized Leqi interface project, output automatic invoicing system,Reverse invoicing system,The invoice issuance for individuals system, employee expense control and reimbursement system, input VAT invoice management system, supply chain collaborative reconciliation system, image AI OCR recognition system, automated financial bookkeeping system, electronic accounting archives system, and other business solutions comprehensively advance digitalization across various fields.

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

Differentiated highlights: More than invoicing, building a full-cycle compliance system


#IndividualsInvoicingSolutions #IndividualsInvoicingSystem #Invoice Issuance for Individuals API Interface #Batch IndividualsInvoicingInterface #Nationwide invoice issuance for individuals solution #Expert expense invoice management #Digital Business-Finance-Tax Compliance #Enterprise Tax Risk Control




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Common Questions
How can invoicing by individuals to enterprises be considered compliant?
The core of compliance is the consistency of the four flows: the contract flow, business flow, fund flow, and invoice flow must match. At the same time, a complete evidence chain must be retained, including service results, payment vouchers, and tax payment certificates. Under China Golden Tax Phase IV, invoice information must fully correspond to the contract, business, and funds; otherwise, it may be deemed false invoicing.
The expert fee invoicing process is too troublesome; is there a simple method?
Kailing Technology has connected to tax app interfaces, so individuals do not need to download additional software and can complete registration and authentication, information filling, tax review and payment, and invoice acquisition within the enterprise system or mini-program. The entire process is online, compressing the average time from 3-5 days to 20 minutes, with the system automatically pre-filling information to ensure consistency of the four flows.
What taxes must be paid when an individual issues an invoice? How are they calculated?
Mainly involves VAT (generally 1% or 3%, with reductions for small-scale taxpayers), individual income tax (labor remuneration withheld at 20%-40%, with annual reconciliation), and surcharges (about 12% of VAT). Kailing Technology can automatically match local policies to calculate tax amounts, avoiding calculation errors.
If an enterprise uses personal invoices, how can it ensure the four flows are consistent and avoid inspection?
The Kailing Technology system automatically collects and links contracts, service records, fund payment vouchers, invoices, and tax payment certificates, forming a complete evidence chain. Every invoice can be traced back to a specific business, and all materials can be retrieved with one click during tax verification, without manual organization, completely avoiding the risk of booking with informal receipts.
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