Kailing Technology one-stop solution: How can Beijing-Tianjin-Hebei enterprises' fully digitalized e-invoicing Leqi Direct Connection solve input VAT invoice management challenges?

As the national tax digitalization reform continues to deepen, fully digitalized e-invoices have become a core trend in enterprise business-finance-tax management. As a leading region in national digital transformation, the Beijing-Tianjin-Hebei region has not only implemented policies for the full-region promotion of fully digitalized e-invoices, but also issued special regulatory guidelines for the implementation and application of Leqi Direct Connection services. Beijing's measure to fully implement e-invoices on toll roads starting February 2026 further accelerates the popularization and application of fully digitalized e-invoices among enterprises in the region. Against this backdrop, enterprises urgently need business-finance-tax management solutions suited to the fully digitalized era to solve practical difficulties in implementing fully digitalized e-invoices and fully digitalized Leqi. Deeply engaged in the intelligent business-finance-tax field, Kailing Technology relies on its in-depth interpretation of tax policies and technological R&D strength to build a full-process solution for fully digitalized Leqi. Through the in-depth development and application of Leqi Direct Connection and Leqi interfaces, it helps enterprises achieve cost reduction, efficiency improvement, and compliance in business-finance-tax management in the fully digitalized era.

I. Multiple practical obstacles to enterprises self-developing Leqi interfaces

The comprehensive promotion of fully digitalized e-invoices and the implementation of Leqi Direct Connection services bring opportunities for enterprises' business-finance-tax digital upgrading. However, in actual implementation, enterprises—especially those operating across regions in the Beijing-Tianjin-Hebei area—face many process and technical difficulties. As a core part of enterprise business-finance-tax management, input VAT invoice management has become an area where pain points are concentrated.

First, input VAT invoice collection efficiency is low and channels are scattered. Invoices received by enterprises cover multiple forms such as fully digitalized e-invoices and paper invoices, with sources including email, WeChat, and paper printouts. Manual collection is not only time-consuming and labor-intensive but also prone to omissions and losses. For enterprises operating across the Beijing-Tianjin-Hebei region, with subordinate branches widely distributed, the difficulty of input VAT invoice collection increases exponentially.

Second, authenticity verification, duplicate checking, and compliance validation are difficult. Although fully digitalized e-invoices enable digital circulation, enterprises need to complete invoice authenticity verification, duplicate reimbursement checks, and seller qualification reviews on their own. Manual operations are prone to omissions, triggering tax compliance risks.

Third, the business-invoice matching and write-off process is cumbersome. Input VAT invoices need to be matched one by one with purchase orders, warehouse receipts, and payment documents. The traditional manual reconciliation model is inefficient, difficult to adapt to enterprises' high-frequency business transactions, and even less able to achieve real-time data synchronization.

Fourth, the technical threshold for Leqi interface integration is high. The State Taxation Administration andVariousLocal tax bureaus have strict requirements for Leqi Direct Connection access qualifications, process design, and data transmission. The Leqi interface only provides basic capabilities, and enterprises need to develop verification rules and process logic themselves. Sandbox testing time is tight, and most enterprises lack professional technical teams to complete independent integration.

Fifth, input deduction and archiving are non-standard. Fully digitalized e-invoices require original archiving, and input selection and deduction require real-time awareness of invoice status. Manual operations are prone to issues such as overdue deduction and incomplete archiving, failing to meet tax policy requirements.

The existence of these difficulties traps many enterprises in the dilemma of "strong willingness for fully digitalized transformation, difficult implementation," urgently requiring professional service providers to offer full-process solutions to solve the practical challenges of Leqi Direct Connection implementation and input VAT invoice management.

II. Kailing Technology's full-dimensional intelligent solution solves input management pain points

In response to the core pain points of enterprise input VAT invoice management, Kailing Technology, based on the core capabilities of fully digitalized e-invoice Leqi and relying on deep development of Leqi Direct Connection and Leqi interfaces, has created a scenario-based, automated input VAT invoice management solution, opening up the full process of invoice receipt, authenticity verification, matching, deduction, and archiving, achieving intelligent, digital, and integrated input management, while also accommodating the personalized needs of enterprises operating across the Beijing-Tianjin-Hebei region, freeing input management from manual operations and achieving dual improvements in efficiency and compliance.

1.Omnichannel automatic collection to build a unified enterprise invoice pool

Through the Leqi interface, Kailing Technology directly connects to the tax digital account, realizing automatic synchronization and automatic signing of all input fully digitalized e-invoices of the enterprise, without the need for manual login to the tax system; for paper invoices, electronic ordinary invoices, and other non-fully-digitalized invoices, it realizes electronic collection through OCR recognition and scan-code entry, and also supports automatic capture of invoices from multiple channels such as email, WeChat, and DingTalk. For Beijing-Tianjin-Hebei cross-regional group enterprises, the solution supports unified collection of invoice data from all subordinate branches, allowing the headquarters to grasp the invoice receipt situation in each region in real time, creating a unified enterprise-wide invoice data pool and thoroughly solving the problems of scattered invoices and difficult collection.

2.Intelligent authenticity verification and duplicate checking, building a solid tax compliance defense line

Leveraging Leqi Direct Connection's tax data interoperability capability, Kailing Technology's solution enables real-time automatic verification of input VAT invoices, connects to the tax authority's dishonesty list, and automatically verifies the seller's tax credit rating and whether it is a runaway or uncontactable enterprise, avoiding the receipt of abnormal invoices at the source; meanwhile, the system has built-in intelligent duplicate-check rules that automatically flag invoices already booked or reimbursed, eliminating duplicate reimbursement and duplicate booking. In response to the regional characteristics of tax policies in the Beijing-Tianjin-Hebei region, the solution specially embeds region-specific compliance verification rules, making enterprise input management more aligned with local policy requirements.

3.Intelligent business-invoice matching, achieving automated write-off processes

The solution breaks down the data barriers between enterprise financial systems, procurement systems, and the Leqi Direct Connection system, automatically linking input VAT invoices with purchase orders, warehouse receipts, and payment slips. It supports multiple verification modes such as "one-to-one," "one-to-many," and "many-to-one." The system automatically matches invoice details with business data, generates matching reports, and provides real-time alerts for unmatched documents. Finance staff only need to manually review alerted documents, greatly reducing reconciliation workload. This function is especially suitable for high-frequency industries such as commerce and manufacturing, increasing business-invoice matching efficiency by more than 80%.

4.Batch selection for deduction, achieving efficient input tax management

The system automatically includes booked and matched input VAT invoices into the selection and certification pool, supporting multiple operation modes such as single selection, batch selection, and one-click deduction. Group enterprises can achieve centralized batch deduction of input VAT invoices across regional branches and monitor invoice deduction status in real time; at the same time, the system automatically reminds about invoices nearing expiration to avoid economic losses caused by overdue deduction. In response to the characteristics of fully digitalized e-invoices, the solution enables real-time synchronization of deduction data with tax digital accounts and automatic feedback of deduction results, making the input VAT deduction process more efficient and precise.

5.Originals automatically archived, meeting policy and regulatory requirements

According to the requirements of the State Taxation Administration and the tax authorities of Beijing, Tianjin, and Hebei for electronic invoice archiving, the Kailing Technology solution automatically obtains the XML original file of fully digitalized e-invoices through the Leqi interface and automatically associates it with enterprise bookkeeping vouchers and business documents, realizing integrated archiving of "invoice-voucher-document." It also supports retention of invoice files in PDF, OFD, and other formats, meeting the "four-property testing" requirements of electronic accounting archives. Archived invoices support rapid retrieval by multiple dimensions such as invoice number, date, purchaser name, and branch, replacing traditional paper archiving and saving enterprise archive management costs.

III. Multi-dimensional core advantages, setting a benchmark for fully digitalized Leqi services

Against the backdrop of the comprehensive promotion of fully digitalized e-invoices and Leqi Direct Connection becoming a core lever for enterprise business-finance-tax transformation, Kailing Technology's fully digitalized e-invoice Leqi solution stands out among many service providers with differentiated core advantages. It not only provides enterprises with scenario-based solutions for input management but also creates a full-process, full-cycle Leqi service system, becoming a high-quality partner for enterprise fully digitalized e-invoice transformation.

1. Full-cycle Leqi services, solving integration challenges

Kailing Technology provides full-cycle Leqi Direct Connection services covering "consultation-application-integration-implementation", from enterprise access qualification pre-review and material preparation, to Leqi interface development and sandbox testing, and then to daily operations after system implementation, with one-on-one guidance throughout, requiring no dedicated technical team from the enterprise, making Leqi Direct Connection simpler and more efficient, and providing localized customized services especially for the exclusive requirements of Leqi access in the Beijing-Tianjin-Hebei region.

2.In-Depth Leqi Interface Development, Adapting to Scenarios Across All Industries

Kailing Technology conducts in-depth research and customized development on Leqi interfaces, and has completed adaptation for more than 20 specific invoice types, including refined oil, real estate, agricultural products, and toll fees. At the same time, it can customize exclusive interface functions and process logic according to enterprise industry characteristics and business models, meeting the personalized needs of enterprises in different industries and of different sizes, and making fully digitalized Leqi services more aligned with enterprises' actual operations.

3.Group enterprisesCross-regional collaboration, adapting to regional policies

TargetingGroupGiven the characteristics of enterprises operating across regions, the solution supports unified invoice management, centralized deduction, and data sharing for multiple regions and branches, while tracking in real timeAll locationsTimely optimize and upgrade the system based on policy updates for fully digitalized e-invoices and Leqi Direct Connection, so that enterprise business-finance-tax management always aligns with regional policy requirements.

4. Integration of business, finance, invoice, tax, and archives to achieve data interoperability

Kailing Technology's fully digitalized e-invoice Leqi solution is not a single invoice management tool, but connects all links of enterprise business, finance, tax, and archives, achieving integrated management of business, finance, invoice, tax, and archives. Through Leqi Direct Connection, it achieves real-time interoperability between tax data and enterprise operating data, providing precise data support for enterprise business decisions, so that fully digitalized transformation not only reduces costs and increases efficiency, but also empowers enterprise development.

5.Independent control of data security, meeting policy requirements

The solution relies on the technical characteristics of Leqi Direct Connection to achieve direct connection between enterprise-owned systems and the tax system, with tax-related data not needing to flow through third-party platforms, ensuring data security from the source; at the same time, the system has built-in strict data security control rules, complying with the Cybersecurity Law, Data Security Law, and other laws and regulations, and also meeting the policy provisions of tax authorities in the Beijing-Tianjin-Hebei region on enterprise autonomous data control.

The comprehensive rollout of China Golden Tax Phase IV and fully digitalized e-invoices is both a challenge and an opportunity. Through professional Leqi Direct Connection solutions, enterprises can transform tax compliance capabilities into an intrinsic operational efficiency advantage. With full-process services, an independent delivery model, a seasoned team, and rich practical experience in the Beijing-Tianjin-Hebei region, Kailing Technology is becoming a reliable partner for more and more enterprises in achieving business-finance-tax digital transformation.

ImmediatelyConsult Kailing Technology, getEnterpriseExclusive fully digitalized e-invoice and Leqi Direct Connection implementation planning, moving toward a new stage of safe, efficient, and intelligent business-finance-tax management：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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