Latvia B2B E Invoicing Mandate in 2026 What Businesses Must Fix Now
Latvia is accelerating its transition toward structured electronic invoicing as part of the EU’s digital tax transformation.
Since January 2025, suppliers to public sector institutions must send invoices in structured electronic formats. Beginning 2026, additional reporting requirements will apply, and businesses will be encouraged to exchange invoices electronically through compliant networks. The full B2B e-invoicing mandate is currently planned for 2028.
Many organizations assume they are already compliant because they send invoices digitally, but PDF or email invoices do not qualify as structured e-invoices. Instead, invoices must contain machine-readable data formats such as XML based on EN16931 or Peppol BIS Billing 3.0, enabling automated processing between ERP systems and government platforms.
Companies that delay preparation risk operational challenges such as invoice rejection, payment delays, manual processing bottlenecks, and compliance exposure.
What Is Structured E-Invoicing in Latvia?
Structured e-invoicing means invoices are created in machine-readable formats that accounting systems and government platforms can process automatically. Unlike traditional PDF invoices, structured invoices include standardized data fields that enable systems to validate, read, and process invoice information without manual data entry. Across Europe, many countries are aligning with the Peppol framework, which enables businesses and public institutions to securely exchange compliant electronic invoices through a standardized network.
Common structured invoice formats include:
UBL (Universal Business Language) – A widely used standardized XML format for electronic business documents.
Peppol BIS Billing 3.0 – The standard invoice specification used within the Peppol framework.
XML Structured Invoices – Machine-readable invoices using structured XML data fields for automated processing.
CIUS (Core Invoice Usage Specifications) – Country-specific extensions of the European e-invoicing standard used for local compliance.
EN 16931 European Standard – The EU standard defining the core semantic data model for electronic invoices.
This ensures interoperability between ERP systems, suppliers, and public sector platforms.
Who the Latvia E-Invoicing Mandate Affects
Latvia’s e-invoicing requirements primarily affect businesses that invoice public sector institutions. Suppliers to government entities must send structured electronic invoices instead of traditional PDFs or email invoices.
Companies working with ministries, municipalities, or public organizations must generate invoices in structured formats compliant with the European standard EN 16931, often using formats such as Peppol BIS Billing 3.0. Without compliant invoices, payments may be delayed or rejected by public sector systems.
In addition to public sector suppliers, many large enterprises are gradually adopting structured invoice processing to improve automation and supplier integration. Suppliers working with these organizations may need systems capable of generating structured invoices and exchanging them through networks such as Peppol or other compliant e-invoicing platforms.
International companies invoicing Latvian government entities must also comply with these structured invoice requirements.
Businesses Selling to Government (B2G)
Companies invoicing public institutions must send structured e-invoices instead of PDFs.
Examples include:
Construction companies
IT service providers
Government contractors
Consulting firms
Infrastructure suppliers
Without compliant invoices, payments may be rejected or delayed.
Businesses Working with Large Enterprises
Large enterprises are already transitioning to structured invoice processing.
Suppliers will need systems capable of:
generating structured invoices
connecting to Peppol networks
exchanging compliant invoice documents
Without automation, finance teams will struggle with supplier onboarding and invoice conversion.
International Companies Operating in Latvia
International suppliers invoicing Latvian public sector entities must send structured electronic invoices compliant with EU standards.
Affected sectors include:
manufacturing supply chains
logistics providers
wholesale distribution
SaaS companies billing Latvian customers
Biggest Pain Points Businesses Are Facing
Biggest Pain Points Businesses Are Facing refers to the key challenges companies encounter when preparing for structured e-invoicing, such as outdated ERP systems, manual invoice processing, supplier integration difficulties, and ensuring compliance with networks like Peppol.
1. ERP Systems Cannot Generate Peppol-Compatible Invoices
Many ERP systems generate PDF or basic XML invoices that are not compatible with Peppol, requiring additional integration or transformation to meet structured e-invoicing requirements.
Many ERP systems only generate:
PDF invoices – Human-readable documents that cannot be automatically processed by accounting or compliance systems.
CSV data exports – Simple data files that require manual mapping before they can be used for structured invoicing.
Basic XML files – Generic XML formats that often do not follow standardized e-invoicing structures like Peppol BIS.
Excel spreadsheets (XLS/XLSX) – Tabular invoice data that requires manual handling and cannot integrate directly with e-invoicing networks.
Email-based invoice attachments – Invoices sent via email that still require manual download, validation, and data entry.
These formats do not meet structured e-invoicing standards. Companies must implement data transformation and integration layers.
2. Manual Invoice Processing
Invoices handled through emails or spreadsheets require manual entry, increasing errors, delays, and operational workload.
Email invoices – Invoices sent via email require manual downloading and processing, increasing delays and errors.
Manual uploads – Finance teams upload invoices to systems manually, slowing workflows and increasing workload.
Spreadsheet tracking – Invoice data tracked in spreadsheets is prone to errors and difficult to manage at scale.
Invoice errors – Manual entry often leads to incorrect invoice data, causing disputes and payment issues.
Delayed approvals – Manual workflows slow approval cycles, delaying payments and disrupting financial processes.
Structured e-invoicing requires automated data exchange between systems.
3. Supplier Integration Challenges
Businesses struggle to onboard and integrate multiple suppliers sending invoices in different formats and systems.
Without automated onboarding:
Incorrect invoice formats – Suppliers send invoices in non-compliant formats that cannot be processed automatically.
Manual invoice corrections – Finance teams must manually adjust invoice data to match required standards.
Data inconsistencies – Different supplier formats create mismatched fields and validation issues.
Slower invoice processing – Manual handling increases processing time and operational workload.
Delayed payment cycles – Invoice corrections and processing delays slow down supplier payments.
This leads to major operational inefficiencies.
4. Compliance and Audit Risk
Incorrect invoice formats or missing data can lead to rejected invoices, payment delays, and regulatory compliance issues.
Incorrect invoice structures can cause:
Rejected invoices – Incorrect invoice formats may be rejected by systems or networks like Peppol.
Delayed payments – Payment processing slows when invoices fail validation or require corrections.
VAT reporting issues – Incorrect or missing tax data can create problems in VAT filings and compliance checks.
Compliance violations – Non-standard invoices may fail to meet government e-invoicing regulations.
Audit risks – Incomplete or incorrect invoice data can trigger financial audits and penalties.
Finance teams must ensure invoice data fields match regulatory requirements.
What Businesses Must Fix Before 2026
What Businesses Must Fix Before 2026 refers to the key system upgrades and process changes companies must implement to comply with Latvia’s structured e-invoicing requirements, including enabling structured invoice formats, integrating ERP systems, and connecting to networks like Peppol.
Enable Structured Invoice Generation, Your system must support:
Structured invoice formats (UBL/XML) – Systems must generate invoices in machine-readable formats used for automated processing.
Standardized invoice data fields – Invoice data must follow consistent structures for accurate system validation.
Automated invoice creation – Invoices should be generated automatically from ERP or accounting systems.
Validation before sending – Systems must check invoice data for errors before submission to networks like Peppol.
System compatibility – ERP and finance systems must support structured invoice generation without manual conversion.
Connect to the Peppol Network
Many businesses connect to the Peppol network to exchange compliant electronic invoices.
This requires:
Peppol network connection – Businesses must connect to the Peppol to exchange compliant e-invoices.
Peppol Access Point – Companies need access to a certified Peppol Access Point to send and receive invoices.
Secure document transmission – The network ensures encrypted and secure exchange of invoice data.
Partner identification (Peppol ID) – Each business is identified using a unique Peppol ID for accurate routing.
Automated invoice exchange – Systems can automatically send and receive structured invoices between partners.
Integrate ERP, Accounting, and Finance Systems
Your infrastructure should support:
Automated invoice sending – Systems should automatically send structured invoices directly from ERP or accounting platforms.
Invoice receiving capability – Businesses must be able to receive invoices digitally from partners and networks.
Invoice validation – Systems should automatically check invoices for format errors and missing data.
ERP posting automation – Approved invoices should automatically post to ERP or accounting systems.
Compliant document archiving – Invoice data must be securely stored to meet regulatory and audit requirements.
Automate Invoice Workflows
Structured e-invoicing is most effective when combined with automation.
Automation helps:
Reduced finance workload – Automation minimizes repetitive tasks, allowing finance teams to focus on higher-value work.
No manual data entry – Invoice data flows automatically between systems without manual input.
Faster invoice approvals – Automated workflows speed up approval processes and reduce bottlenecks.
Shorter payment cycles – Faster processing helps businesses pay suppliers more quickly.
Improved process efficiency – Automated workflows streamline invoice handling and reduce operational delays.
How HubBroker Helps Businesses Become E-Invoicing Compliant
HubBroker provides a cloud-based integration platform that helps companies automate the exchange of business documents and comply with global e-invoicing regulations.
With HubBroker businesses can:
✔ Transform invoice data into structured Peppol-compatible formats
✔ Connect ERP systems to Peppol Access Points
✔ Automate invoice sending and receiving
✔ Integrate suppliers and partners quickly
✔ Support businesses in meeting regulatory e-invoicing requirements across multiple countries.
Why Companies Are Preparing for Latvia E-Invoicing Now
Organizations that implement structured invoicing early gain significant operational benefits:
According to the European Commission, structured e-invoicing can reduce invoice processing costs by up to 60–70% compared to manual processing.
faster payments and fewer invoice disputes
improved financial transparency
automated compliance reporting
lower operational costs
E-invoicing is not just a compliance requirement — it is a major opportunity to modernize financial operations.