Reasons to choose Kailing Technology's fully digitalized e-invoice and Leqi solution: a comprehensive guide to simpler, faster, and more reliable Leqi platform integration

Against the backdrop of the full implementation of China Golden Tax Phase IV, "governing tax by data" has become the new normal of tax regulation. The Leqi platform (Natural System) launched by the State Taxation Administration, as the official channel for direct tax-enterprise connection, is becoming the core infrastructure for the business-finance-tax digital transformation of large group enterprises.

However, access to the Leqi platform is not easy—strict qualification requirements, complex technical integration, and continuous operation and maintenance support deter many enterprises. As a professional business-finance-tax digital solution service provider, Kailing Technology, with deep industry experience and a professional technical team, provides enterprises with one-stop services from Leqi application to system integration, and from launch operations to continuous maintenance, making Leqi platform integration simpler, faster, and more reliable.

This article provides a comprehensive analysis of the Leqi platform's essence, access conditions, implementation challenges, and the core reasons for choosing Kailing Technology's solutions, helping you make informed decisions.

I. Understand the Leqi platform — an official tax bureau interface, not a third-party product

1. Official positioning of the Leqi Platform

Leqi (Natural System) is a tax-enterprise direct connection service platform provided by the State Taxation Administration to eligible enterprises. Its core features include:

▪ Official nature: Leqi is the tax bureau's official interface capability, uniformly built and managed by the State Taxation Administration

▪ Direct Connection Mode: Through direct connection between the tax system and the enterprise's own information system, achieving automated processing of tax-related business

▪ Open rules: tax policies, business rules, and technical interface specifications are opened to enterprises in the form of "capability documents"

▪ Standard unification: provide standardized API interfaces, supporting enterprises to embed tax-related businesses such as invoicing and invoice receipt into their own systems

2. The relationship between the Leqi Platform and Kailing Technology

This is a key understanding: Leqi is the tax bureau's official platform, and Kailing Technology provides application and connection services.

The value of Kailing Technology lies in:

▪ Help enterprises cross the strict threshold of Leqi application

▪ Provide professional technical integration to reduce enterprises' self-development costs

▪ Continuously track tax bureau interface upgrades to ensure stable system operation

▪ Build an automated and compliant invoicing and invoice use system tailored to enterprise business

3. Three types of access models for Leqi services

According to enterprise needs, the Leqi platform provides three access modes:

1. Self-use mode: suitable for internal use within group enterprises, covering the head office and subordinate member units

2. Joint-use model: suitable for shared use by commercial platforms and merchants, breaking through equity control relationship restrictions

3. Third-party use model: suitable for third-party service providers providing services to small and medium-sized enterprises

Large enterprises mainly adopt the "self-use" model, while some enterprises in industries such as internet, livestreaming, and mobility can choose the "joint use" model.

II. Leqi Platform access conditions—why professional service providers are needed for assistance

1. Basic qualification conditions

According to the State Taxation Administration andVariousAccording to the "Leqi Self-Use Direct Connection Service Specification Guidelines" issued by provincial and municipal tax bureaus, enterprises need to meet the following core conditions（Differences exist across provinces and cities）：

Tax credit rating requirements

▪ Direct connection entity: tax credit level must be A or B

▪ User entity: can be Grade A or Grade B

Business scale requirements

▪ The direct connection entity and affiliated enterprises have a total operating revenue of ≥50 million yuan in the previous year

▪ and cumulative invoicing volume in the past 12 months ≥ 50,000（10,000）copies, or invoicing amount ≥ RMB 500 million（100 million）yuan

▪ Special industries (such as hospitals, public transportation, and other livelihood-guarantee industries) may appropriately relax the standards

Compliance record requirements

▪ No major tax violations in the last three years

▪ Has been included in the pilot taxpayer scope for fully digitalized e-invoice issuance

2. Technical and security conditions

Informatization capability requirements

▪ It is necessary to have proof of software copyright or usage rights for self-owned information systems (ERP, SAP, etc.)

▪ A professional informatization construction and operations team needs to be equipped

▪ Can respond to frequent upgrades and changes in tax bureau interfaces

Data Security and Compliance Requirements

▪ Comply with the Cybersecurity Law, Data Security Law, and other regulations

▪ It is necessary to open interfaces to tax authorities for online auditing

▪ It is necessary to embed risk control rules and preserve tax-related data

3. Related relationship requirements

▪ A user entity must be a head office or branch of the direct connection entity, or a group member enterprise

▪ or affiliated enterprises with equity control relationships

▪ The direct connection entity must report user entity identity information, remuneration accounts, and other data

▪ The direct connection entity must bear joint liability for user entities

4. Application materials list

The complete application materials include:

▪ "Leqi Direct Connection Service Access Information Form" and list of user units

▪ Project Report (including business planning, technical solutions, management processes)

▪ Enterprise proprietary system software copyright or authorization proof

▪ "Leqi Service Network Address Filing Form"

▪ Enterprise qualification documents, proof of equity relationships

▪ Network and Data Security Assurance Solution

Analysis of application difficulties:

▪ Material preparation is highly professional and must comply with tax authority standards

▪ Long review cycles and high rejection risk

▪ Complex technical integration, requiring professional team support

▪ High follow-up operation and maintenance requirements; interface upgrades must be continuously tracked

This is precisely where the value of professional service providers such as Kailing Technology lies.

III. Five reasons to choose Kailing Technology's fully digitalized e-invoice and Leqi solution

Reason one: full-process support, closed-loop service from application to operations and maintenance

Kailing Technology has built a full-process service system covering "application-connection-go-live-operations":

Efficient Leqi applications

▪ Provides full-lifecycle documentation writing services

▪ Covering enterprise qualification verification, filing strategy planning, core document preparation and validation

▪ The enterprise only needs to cooperate with printing and stamping to complete the application

▪ Conduct special coordination with tax authorities in the name of the enterprise to clear approval channels

▪ Significantly shorten the application cycle and reduce the risk of review rejection

Zero-Threshold Technical Integration

▪ A professional team handles system integration, so enterprises do not need to invest substantial technical manpower

▪ Conduct in-depth research on the invoicing business logic of the Leqi platform

▪ Tailor solutions according to enterprise scale, business characteristics, and information system architecture

▪ Supports multiple business scenarios including coding management, concurrent invoicing, and invoice upload

Operations assurance mechanism

▪ Comprehensive monitoring system to ensure stable dual-track operation

▪ Achieve a smooth transition to single-track operation

▪ Continuously track tax bureau interface upgrades and complete system adaptation in a timely manner

Reason two: professional capability testing and activation to ensure project progress

The Leqi application access process is complex and includes multiple stages. Kailing Technology's advantages lie in:

▪ Full coverage of sandbox testing: Before formally activating online Leqi qualification, conduct sandbox testing one by one for each Leqi capability applied for.

▪ Efficient completion within the time limit: complete all testing steps within the specified time limit

▪ Problems are solved quickly: even if the docking personnel are not proficient in operation, or errors are encountered during testing, technical experts can resolve them quickly.

▪ Project schedule assurance: ensure the overall project schedule is not affected

Reason three: tailored business review and solution design

The Tax Bureau Leqi provides numerous invoicing and invoice-use interfaces with highly specialized business logic. Kailing Technology provides:

▪ In-depth business research: in-depth study of the enterprise's existing business processes and system architecture

▪ Precise solution matching: customized connection solutions based on enterprise characteristics

▪ Scenario-based adaptation: precise technical support for code assignment management, concurrent invoicing, and invoice upload

▪ System stability assurance: ensuring high system availability so enterprises can connect to the Leqi platform worry-free

Reason four: a complete compliance risk control system

Under the regulatory environment of China Golden Tax Phase IV's "tax governance by data," compliance is the enterprise's primary concern. Kailing Technology builds:

▪ Nearly 100 business-finance-tax risk indicators: built-in comprehensive risk monitoring system

▪ Full-process risk monitoring: covering various risk situations such as malicious red-letter reversal and voiding, out-of-scope abnormal invoicing, and abnormal input-output matching

▪ Risk Early Warning Mechanism: Effectively prevent enterprises from triggering Leqi platform risk warnings due to improper invoicing behavior

▪ Improved compliance level: Closely linking invoicing and usage risks with compliance requirements to ensure smooth business operations

Reason five: deep business-finance-tax integration

Kailing Technology's solution is not merely simple interface connection, but achieves deep integration of business, finance, and tax:

▪ Trace business backward: collect data from the business source to ensure data accuracy

▪ Track finance forward: automatically generate vouchers to realize automated financial processing

▪ Tax Compliance Embedding: Embed tax rules into business processes to achieve association before tax

▪ Full-process automation: full coverage of seven core capabilities, from invoicing, collection, verification, and input VAT deduction selection to booking

IV. Comparison of core advantages of Kailing Technology Solutions

1. Comparison with the traditional self-development model

2. Comparison with other third-party service providers

V. Implementation path for Leqi Platform integration

Phase One: Access application

1. Qualification self-check: confirm whether the enterprise meets Leqi access conditions

2. Material preparation: prepare enterprise qualification documents, equity relationship certificates, technical solutions, etc.

3. Application submission: Submit the access application through the Electronic Tax Bureau Leqi Digital Open Platform

4. Review follow-up: cooperate with tax authorities to supplement materials and follow up on review progress

Kailing Technology value:Provides full-lifecycle documentation writing services; the enterprise only needs to cooperate with printing and stamping; conducts dedicated liaison with tax authorities in the enterprise's name to clear approval channels.

Phase 2: Activation and configuration

1. Key acquisition: complete identity authentication, obtain interface access key

2. Capability subscription: Subscribe to the corresponding Leqi service capabilities according to business needs

3. Sandbox testing: Verify interface functions in the test environment

4. Official activation: After testing is passed, apply for activation of the production environment

Kailing Technology value:A professional team guides the process, conducts sandbox testing one by one, and completes it efficiently within the specified time limit; technical experts quickly resolve issues during testing.

Third phase: System integration

1. Business review: analyze the enterprise's existing business processes and system architecture

2. Solution design: develop a customized integration plan

3. Interface development: Realize the connection between business systems and the Leqi platform

4. Joint debugging and testing: complete end-to-end business scenario testing

Kailing Technology value:Tailor solutions according to enterprise scale and business characteristics; support multiple business scenarios to ensure system stability and high availability.

Phase 4: Go-Live Operations

1. Dual-track operation: fully digitalized e-invoices and tax-control invoices run in parallel, sharing the invoice quota

2. Monitoring management: comprehensive monitoring of all invoicing scenarios

3. Smooth Transition: Achieving a smooth switch from dual-track to single-track

4. Continuous operations and maintenance: track interface upgrades and complete system adaptation in a timely manner

Kailing Technology value:Comprehensive operational assurance mechanisms to ensure stable dual-track operation; continuously track tax authority interface upgrades and provide long-term operations services.

Against the backdrop of the full implementation of China Golden Tax Phase IV, the Leqi platform has become the inevitable path for the business-finance-tax digital transformation of large group enterprises. However, access to the Leqi platform is not a simple technical connection, but a systematic project involving qualification applications, system transformation, process optimization, and continuous operations and maintenance.

Choosing Kailing Technology is choosing:

✅ Simpler:Full-process professional service, enterprises only need to cooperate at key stages

✅ Faster:Mature solutions deploy quickly, greatly shortening implementation cycles

✅ More reliable:A professional team provides ongoing operations and maintenance to ensure stable system operation

The value of Kailing Technology lies in leveraging deep industry experience and a professional technical team to help enterprises smoothly cross the Leqi application threshold, seamlessly connect to the tax collection system, and build an automated and compliant invoicing and invoice-use system tailored to business scenarios, truly empowering enterprises' business-finance-tax digital transformation.

If you are considering connecting to LeqiDirect Connection, or wish to learn about Kailing Technology's detailed solutions, please contact Kailing Technology for professional consulting and customized solutions：https://www.kailingteck.com/h-col-123.html 。

Kailing TechnologyAs a comprehensive business-finance-tax digitalization solution service provider, we provide 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,Solutions for 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 businesses, comprehensively advancing the digitalization process across various fields.

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

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