Lithuania: E-Invoicing & VAT Compliance

Learn how to align with the Smart Tax Administration system, including i.SAF invoice reporting and i.VAZ digital logistics controls.

The i.MAS Digital Landscape

i.SAF Reporting & Logistics Control

Lithuania operates i.MAS (Smart Tax Administration System). Key components include i.SAF for VAT invoice reporting and i.VAZ for digital consignment notes in logistics. While B2B e-invoicing is focused on public procurement (B2G), the infrastructure demands real-time data sharing. ERP systems must be configured to extract and submit precise SAF-T style data sets to avoid audit triggers.

Data-Driven Tax Governance

Lithuania is a pioneer of the “Baltic Digital Model.” The State Tax Inspectorate (STI) prioritizes data analytics over manual audits. By cross-referencing VAT data (i.SAF) with transport data (i.VAZ) in real-time, the authority creates a digital twin of the economy. For businesses, consistency is key: data discrepancies between ERP and i.MAS are detected instantly by algorithms.

Understanding Lithuanian E-Invoicing and Tax Reporting Regulations

i.MAS Lithuania: Integrated System for Electronic VAT and Accounting Reporting

i.MAS (Informacinių Mokesčių Apskaitos Sistema) is Lithuania’s integrated electronic tax reporting system designed by the Lithuanian Tax Authority (VMI) to digitize VAT compliance and accounting processes. It encompasses various subsystems, including i.SAF for invoice reporting, i.VAZ for transport documentation, and i.SAF-T for detailed accounting data used in audits.

This system ensures real-time or periodic submission of critical fiscal data, improving transparency and streamlining communication between companies and the tax authority.

Panoramic view of Vilnius, Lithuania, representing the country's digital tax compliance and electronic invoicing regulations.
Aerial view of Vilnius, Lithuania, representing the country's B2G electronic invoicing requirements for public procurement.

B2G e-Invoicing: Lithuania’s Public Sector Invoicing via SABIS

SABIS is Lithuania’s official e-invoicing platform for Business-to-Government (B2G) transactions, developed by the Ministry of Economy and Innovation to streamline invoicing processes and ensure compliance with EU standards. It replaces the previous eSąskaita platform and centralizes the submission of electronic invoices to public entities.

The SABIS system applies to all suppliers working with Lithuanian public sector bodies, requiring them to submit invoices electronically via SABIS, either through the portal, API integration, or Peppol network.

Code10 is your trusted partner for eCompliance and SAP integration

At Code10, we leverage our extensive experience in worldwide eCompliance to support enterprises in achieving regulatory conformity across diverse jurisdictions. Our strategy centers on a powerful hybrid model: we maximize SAP Standard capabilities to ensure future-proof architectures, while deploying our own specialized solutions to bridge technical gaps. This dual approach ensures that even the most complex local requirements—such as TicketBAI in Spain or SAF-T in Poland—are integrated seamlessly into a secure, audit-ready environment.

Through our dedicated eCompliance Hub, we centralize regulatory knowledge and technical frameworks to connect SAP environments directly with global government platforms. We specialize in staying ahead of upcoming mandates, allowing our clients to anticipate new legislative changes before they take effect. By combining standard best practices with our own proactive extensions, we transform the challenge of cross-border reporting and e-invoicing into a streamlined, automated, and sustainable digital operation.

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