Kailing Technology: Key Solutions for Enterprise Leqi Direct Connection, Enhancing Automation and Compliance to Help Your Business Soar Efficiently

In the era of fully digitalized e-invoices ("fully digitalized e-invoices"), the China Golden Tax Phase IV project is reshaping the landscape of enterprise tax management. The Leqi platform (Natural System) launched by the State Taxation Administration, as the official channel for direct tax-enterprise connection, provides enterprises with a tax-related service platform featuring open rules and unified standards. However, how to efficiently and compliantly connect to Leqi and achieve integrated business-finance-tax integration has become a real challenge for many large enterprises.

Kailing Technology, as a professional, efficient, and reliable enterprise business-finance-tax digital solution service provider, focuses on providing enterprises with one-stop services for Leqi Direct Connection application, connection, and implementation. We understand that Leqi is the tax bureau's official interface capability, not the exclusive technology of any third-party vendor. Kailing Technology's value lies in using 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 usage system that fits business scenarios, truly empowering enterprise business-finance-tax digital transformation.

I. Why enterprises need Leqi Direct Connection? — Insights into the core value in the era of fully digitalized e-invoices

The core of the Leqi Platform lies in "direct connection" and "openness." By directly connecting the tax system with enterprises' own information systems, enterprises can embed tax policies and invoicing and invoice usage rules into their own business processes, achieving integrated business-finance-tax convergence. For large group enterprises, the value brought by Leqi Direct Connection is particularly significant:

- Improve collection efficiency:There is no time gap from issuance of a fully digitalized e-invoice to customer receipt: "issue and push, push and urge payment," greatly shortening the payment collection cycle.

- Strengthen tax compliance:Achieve online and automated management of the full invoice lifecycle, avoiding risks such as false invoicing, incorrect invoicing, and red-letter reversal, and meeting China Golden Tax Phase IV regulatory requirements.

However, native integration with the Leqi interface involves high technical thresholds and business complexity, which is exactly why enterprises choose a professional service provider.

II. Difficulties and Challenges of Direct Connection to Leqi — Why Is a Professional Service Provider Needed?

The Leqi Platform provides standardized interface capabilities, but for enterprises to deeply integrate them with complex internal business systems (such as SAP, Oracle, Yonyou, and Kingdee), they must independently solve the following core difficulties:

1. Complex business process design:Reverse processes such as invoicing and red-letter reversal must be designed by enterprises themselves. For example, reversing a blue invoice originally requires calling at least 3 sets of interfaces, and any error in the calling sequence will cause failure.

2. Complex validation logic:Every invoicing parameter has corresponding validation logic, and the Leqi interface returns only a success/failure status for parameter errors, without stating the specific cause. Business logic risks such as a mismatch between tax rate and tax code must be borne by the enterprise itself.

3. Self-packaging of layout files:After successful Leqi invoicing, only an XML data stream is returned; PDF and OFD invoice layout files must be synthesized by the enterprise itself, and development difficulty is extremely high, especially when multi-line details are involved.

4. 72-hour sandbox time-limited testing:After each capability application, all sandbox tests must be completed within 72 hours, otherwise the application process must be restarted, placing extremely high demands on an enterprise's technical response speed and project collaboration capability.

5. Development for adaptation to all invoice types:The validation logic, layout, and parameter passing differ for different invoice types (positive blue invoices, negative red invoices, special/general invoices at different tax rates), multiplying the development workload.

▲ The investment in enterprise self-development is huge:Besides high developer salaries and time costs, you also bear ongoing operations and maintenance costs for continuous compatibility with tax bureau interface upgrades. Overall, entrusting a professional vendor like Kailing Technology to launch the project with less time and cost becomes the more rational choice.

III. Kailing Technology: Your Leqi Direct Connection Integration Escort

What Kailing Technology provides is not a "Leqi interface," but full lifecycle professional services around Leqi application, integration, deployment, and operations. We strictly comply with the State Taxation Administration's regulation that "Leqi-related systems shall not use third-party hosting," and promise full source code delivery to ensure enterprise autonomy and control.

1. Worry-free and effort-saving Leqi application service

Leqi application conditions are strict, requiring multiple conditions such as tax credit, operating revenue, invoice issuance and receipt volume, and technical security, and involving a large amount of document writing and communication with the tax bureau. Kailing Technology provides:

- Full-process document preparation: from application materials to capability documents, enterprises only need to cooperate with printing and sealing.

- Tax bureau relationship coordination: efficiently interface with the competent tax authority as Party A to shorten the approval cycle.

2. "Turnkey" project: Independent IP, compliant deployment, worry-free operations and maintenance

In response to the requirements for Leqi integration such as server deployment, fixed IP, and compliance certificates, Kailing Technology provides a one-stop turnkey project from infrastructure to launch and operations:

- Clear asset ownership: can purchase server resources on behalf of the enterprise (supporting mainstream cloud platforms), with ownership fully belonging to the enterprise; Kailing only enjoys usage rights during project implementation and O&M.

- Compliant throughout: undertakes system deployment, go-live, and ongoing operations and maintenance, ensuring fixed IP filing, data security, and other aspects fully meet tax authority requirements.

3. Visualized sandbox testing for rapid launch

Visualize and tool the complex 72-hour limited-time sandbox testing process, greatly improving test pass rates and efficiency, and ensuring fast and smooth project launch.

4. Full source code delivery, achieving independent and controllable technology

According to the service contract, fully deliver the source code of the "output/input VAT invoice management platform" to the enterprise and complete the lawful transfer of software copyright. The enterprise is not only a user of the system but also the complete legal and technical owner, completely eliminating vendor lock-in and technology dependence.

IV. Improve automation and compliance: the core value of Kailing Technology's solutions

Through Kailing Technology's Leqi Direct Connection solution, enterprises can achieve full-process automation and compliance control from invoicing to recording, and from invoice receipt to deduction.

1.Output side: automatic invoicing, accelerating collections

- Multi-scenario automatic invoicing: Seamlessly connects with business systems such as ERP, OA, e-commerce platforms, and self-developed apps, supporting automatic invoice triggering from various documents such as sales contracts, delivery notes, and service orders.

- Intelligent document processing: Built-in rich splitting and merging rules (by tax rate, batch shipment, same-customer merging, discount handling, etc.) to meet complex business scenarios.

- Omnichannel delivery: after invoicing, PDF/OFD/XML format files are automatically pushed to customers via SMS and email, achieving "invoice upon issuance, payment reminder upon delivery."

- Convenient manual invoicing: provides a WYSIWYG layout import interface, supports one-time import of multiple company entities via Excel, mobile QR code invoicing, pay-and-invoice, and other innovative scenarios.

2.Input side: intelligent invoice collection, strengthened risk control

- Omnichannel invoice collection: employees can collect e-invoices with one click via WeChat mini programs, apps, email, chat records, card wallets, and more; paper invoices support photo capture and batch entry via scanner.

- Intelligent compliance verification: Automatically complete authenticity verification, duplicate checking, header and tax number verification, blacklisted goods/seller verification, electronic signature tampering detection, etc. Supports automatic calculation and deduction of passenger transport industry invoices, with no upload required from employees.

- Proactive risk monitoring: pre-event verification, in-process locking (calling interfaces to mark tax accounting status to prevent malicious red-letter reversal by suppliers), and post-event monitoring (real-time alerts for abnormal invoice status, supplier flight, etc.), comprehensively preventing tax risks.

- One-click authentication and deduction: directly connected to the tax bureau digital account, supporting one-click selection and authentication for multiple company entities without switching interfaces, and automatically generating deduction statistics tables.

3. Business-finance-tax integration

Kailing Technology's solution is not just invoice management, but a bridge connecting business systems (contracts, orders, reimbursements), financial systems (bookkeeping, accounting), and electronic accounting archives. Ultimately achieving a full-chain closed loop of invoicing upon business occurrence, pushing upon invoicing, verification upon receipt, bookkeeping upon reimbursement, and archiving upon bookkeeping, helping enterprises build a compliant, efficient, and sustainable business-finance-tax digital operation system.

Against the backdrop of the comprehensive popularization of fully digitalized e-invoices and strict supervision under China Golden Tax Phase IV, Leqi Direct Connection is the optimal path for enterprises to upgrade tax management. Kailing Technology, as a professional business-finance-tax digitalization service provider, has become your most reliable partner on the road to Leqi Direct Connection with rich industry experience, business-oriented product design, a senior project team, and committed operations and maintenance services.

Consult Kailing Technology immediately and start your compliant and efficient Leqi Direct Connection journey：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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