Kailing Technology one-stop Leqi platform solution: achieving a leap in process and efficiency for fully digitalized e-invoicing Leqi interfaces

In the digital wave of the comprehensive implementation of China Golden Tax Phase IV and the adoption of fully digitalized e-invoices, Leqi Direct Connection, as the core model promoted by the State Taxation Administration for "business, finance, and tax" integration, is becoming the inevitable path for large enterprises' tax digital transformation. However, the complexity of Leqi interface integration, the strictness of compliance requirements, and the high threshold of system integration deter many enterprises. Kailing Technology has created a one-stop Leqi platform solution, from application and activation to scenario implementation, from technical integration to operation and maintenance support, comprehensively resolving enterprise pain points and achieving a dual leap in fully digitalized Leqi interface process simplification and operational efficiency.

I. Leqi Direct Connection: The inevitable choice for tax digitalization of large enterprises

Leqi (NaturalSystem) is a tax system direct connection service platform launched by the State Taxation Administration for eligible enterprises. Through a dual-open model of "data + rules," it openly and standardly discloses tax policies, invoicing rules, and technical interfaces, supporting enterprises in deeply embedding invoice business into their own business and financial systems to build personalized invoicing scenarios. Its core value lies in breaking down tax-enterprise data barriers and enabling automated management of the full invoice lifecycle. For large enterprises, it is a key lever for solving group management, multi-scenario invoicing, and high compliance requirements.

Currently, large enterprises face multiple challenges in the process of Leqi implementation: cumbersome application materials, high pressure from limited-time sandbox testing, complex interface invocation logic, high difficulty in multi-system integration, and persistently high self-development costs. Data shows that for enterprises to self-develop Leqi Direct Connection interfaces, output VAT adaptation alone requires an investment of 1.8 million yuan, and input VAT adaptation 680,000 yuan, with an uncontrollable launch cycle and continuously increasing costs for subsequent policy updates and iterations. Kailing Technology's one-stop solution precisely targets these pain points, providing full-process services from early planning to long-term operations and maintenance, allowing enterprises to quickly enjoy the efficiency dividends brought by Leqi Direct Connection without investing substantial technical and human costs.

II. One-stop solution: full-process coverage, full-scenario adaptation

With "making Leqi implementation simpler" as its core goal, Kailing Technology builds a full-process service system covering "application - integration - launch - operations and maintenance," while providing customized solutions for different industries and business scenarios to ensure Leqi Direct Connection truly fits enterprise needs.

(1) Full-process support: closed-loop service from application to operations

1. Efficient Leqi application:In response to the strict qualification requirements for Leqi applications, Kailing Technology provides full-lifecycle document writing services, covering enterprise qualification verification, application strategy planning, core document preparation and validation, and other steps. Enterprises only need to cooperate with printing and sealing to complete the application. At the same time, it conducts dedicated liaison with tax authorities in the enterprise's name, clearing approval channels and greatly shortening the application cycle.

2. Zero-threshold technical integration:Provide a "turnkey project," covering infrastructure setup such as server procurement, fixed IP filing, and system deployment. Server ownership belongs entirely to the enterprise, ensuring data security, autonomy, and controllability. In response to the 72-hour limited-time pressure of sandbox testing, build a visualized testing environment, complete interface debugging and process verification in advance, and ensure passing the test in one attempt.

3. Normalized go-live operations and maintenance:After the project goes live, dedicated operations and maintenance services are provided with a 10-minute response and same-day closure. For situations such as tax policy updates and new invoice types, system compatibility upgrades are completed within 5 working days. At the same time, the full source code and copyright are delivered and transferred, enabling the enterprise to independently control secondary development and iteration of the system and completely eliminate vendor lock-in.

(2) Full-scenario adaptation: personalized solutions covering output and input VAT invoices

1. Automatic output VAT invoicing:Efficient multi-scenario implementation: For large enterprise group management and multi-business-line invoicing needs, it achieves deep integration with ERP systems such as SAP and Oracle, OA systems such as Weaver and Seeyon, as well as self-developed e-commerce platforms and offline store systems. It supports 10+ scenarios including full-process invoicing for sales contracts, automatic invoicing for e-commerce platforms, one-click invoicing for export customs declarations, and mobile scan-to-invoice. It can automatically split and merge documents based on tax rates, delivery methods, discount rules, etc., increasing invoicing efficiency by over 80%.

2. Intelligent input VAT invoice collection:Full-process compliance control: building a full-process automation system of "collection-verification-deduction-archiving", supporting multi-channel invoice collection methods such as mobile scanning, WeChat card wallet sync, and automatic email aggregation, combined with AI OCR technology to achieve recognition of all invoice types with 100% accuracy. Through multi-dimensional compliance validation such as invoice duplicate checking, blacklist verification, and tax code matching, tax risks are avoided in advance; automatically generating passenger transport deduction statistics tables to achieve maximum input tax deduction, saving enterprises hundreds of thousands of yuan in taxes annually.

3. Group-based control:Unified operation and maintenance across multiple entities: for large enterprises' needs to manage multiple subsidiaries and multiple tax numbers, it supports batch invoice selection, deduction statistics, and report generation for multiple companies in the same interface, without switching entities, greatly reducing group tax management difficulty. The system can monitor each subsidiary's invoicing status, invoice status, and tax-related risks in real time, and generate multi-dimensional group tax reports to provide data support for management decisions.

III. Core advantages: triple assurance of technology, experience, and service

1. Independent and controllable technology:All products are self-developed and can seamlessly connect with enterprises' existing IT architectures.According to contract agreement, optionalFull source code delivery and copyright transfer, ensuring that enterprises can independently complete system iterations when policies change or business adjusts, meeting long-term development needs.

2. Rich industry experience:The core team all have over 5 years of business-finance-tax industry experience, having served more than a thousand large enterprises cumulatively, covering manufacturing, energy, pharmaceuticals, e-commerce, finance, and many other fields, and are familiar with the business characteristics and tax requirements of different industries. With rich hands-on Leqi Direct Connection experience, they can quickly address technical difficulties such as incorrect interface call sequences, complex red-ink reversal processes, and format file encapsulation, ensuring on-time, high-quality project delivery.

3. Comprehensive service network:Establish a delivery and operations system headquartered in Beijing, covering seven major regions—Northwest, Northeast, North China, East China, South China, and Southwest—providing 7×24 telephone/WeChat support and on-site service for urgent matters on working days. Project implementation adopts a special team model of "project manager + technical backbone + tax expert"; core members can be interviewed before signing, and replacements are allowed if unsatisfactory, ensuring the project is delivered by the team that best understands the industry.

At the critical stage of digital transformation, choosing a professional partner is half the success. With technology as the cornerstone, experience as support, and service as the guarantee, Kailing Technology lets large enterprises focus on core business development without getting entangled in technical details and compliance risks. In the future, Kailing Technology will continue to deepen its work in the Leqi Direct Connection field, closely follow tax policy changes, iterate and optimize solutions, and help more enterprises achieve efficiency leaps and value upgrading in business-finance-tax digitalization.

If you want to understand the implementation details of the solution in a specific industry, or need a customized Leqi Direct Connection plan, welcome to consult at any time. We will provide you with one-on-one professional service：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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