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The Hague, 28 October 2026. Peppol.now welcomes ClearTax as a new Premium partner. ClearTax is an e-invoicing and tax compliance platform for mid-sized and large enterprises, and a certified Peppol Service Provider. Its arrival is a good moment to address a question that many finance and tax managers face: how do you organise multi-country e-invoicing when every country has its own model, its own format and its own timeline?

This partner special explains why the task is complex, which countries follow which model, how ClearTax handles it through a single integration, and which steps your organisation can take now.

Why multi-country e-invoicing is hard

Any business invoicing customers in several countries deals with three models side by side. In Peppol countries, supplier and buyer exchange the e-invoice over the Peppol network, each through their own service provider. In clearance countries, the tax authority must validate or register the invoice before it is legally valid. And a growing number of countries combine e-invoicing with e-reporting: passing invoice or payment data to the tax authority in (near) real time. The differences between countries are substantial.

Belgium: since 1 January 2026, structured e-invoices are mandatory between Belgian VAT-registered businesses and are sent systematically over the Peppol network, with Peppol BIS as the reference format. On 18 July 2026 the Council of Ministers approved a preliminary draft law on near real-time e-reporting; the ambition is a 5-corner set-up from 2028.
Netherlands: any supplier to central government must send an e-invoice, which can be done over Peppol. On 11 September 2026 the Dutch government chose mandatory B2B e-invoicing from 1 July 2030 and digital reporting from 1 July 2031. The network for domestic B2B has not yet been decided.
Luxembourg: bill 8815, filed on 30 July 2026, requires businesses to be able to receive structured e-invoices from 1 January 2028. Larger businesses must issue e-invoices by 1 July 2028 and all others by 1 January 2029. The network will be designated by grand-ducal regulation, and the draft regulations name Peppol as the network.
France: from 1 September 2026, every business must be able to receive e-invoices, and large and intermediate-sized enterprises must issue them. SMEs and micro-enterprises follow on 1 September 2027. Domestic B2B invoices flow through Plateformes Agréées, which also transmit the required data to the tax authority. E-reporting follows the same timeline.
Germany: since 1 January 2025, every business must be able to receive e-invoices. Issuing EN 16931 e-invoices (for example XRechnung or ZUGFeRD) becomes mandatory on 1 January 2027 for businesses with prior-year turnover above EUR 800,000 and on 1 January 2028 for all businesses. The transport channel is open: Peppol is one option, not a requirement.
Poland: e-invoicing runs through the KSeF clearance system, mandatory since 1 February 2026 for large taxpayers and since 1 April 2026 for other businesses. The smallest taxpayers follow on 1 January 2027.
Spain: businesses with turnover above EUR 8 million must issue and receive e-invoices and report invoice and payment status from 6 October 2027; all other businesses follow from 6 October 2028.
Beyond the EU: Saudi Arabia introduced e-invoicing in two phases (4 December 2021 and 1 January 2023) with clearance through ZATCA. Malaysia phased in e-invoicing via LHDN MyInvois between 1 August 2024 and 1 January 2026. The United Arab Emirates launched a pilot in July 2026 based on a 5-corner model with PINT AE. India works with Invoice Registration Portals (IRPs).

On top of that sits the EU’s ViDA package: digital reporting requirements apply to cross-border B2B transactions from 1 July 2030, and member states with their own real-time reporting systems must align them with the EU model by 1 January 2035. For a group with entities in five or ten countries, that means different formats, networks, validation rules, archiving requirements and go-live dates. Bolting a separate solution onto the ERP for each country creates a fragmented landscape that needs attention every time a mandate changes. Our earlier article on Peppol and e-reporting sets out how to design one integration architecture instead.

Who ClearTax is

ClearTax started in India, where it is authorised by the Goods and Services Tax Network (GSTN) to operate Clear IRP as Invoice Registration Portal 4. Building on that experience with clearance at scale, ClearTax expanded into the Middle East, Southeast Asia and Europe. The company is headquartered in Bangalore.

Several credentials can be checked publicly:

ClearTax is listed by OpenPeppol as a certified Peppol Service Provider (Access Point certification).
In France, ClearTax appears on the official list of Plateformes Agréées that meet all conditions, including interoperability testing, with a registration date of 24 April 2026.
In the United Arab Emirates, ClearTax (Defmacro Software DMCC) is on the Ministry of Finance list of eInvoicing Accredited Service Providers.
According to ClearTax, more than 5,000 enterprises use the platform, covering more than 50 countries through one API and more than 2,000 integrations.

ClearTax focuses on mid-sized and large enterprises, including multinational groups running several ERPs and entities across countries, and also works with system integrators who implement e-invoicing for their clients.

How ClearTax approaches multi-country e-invoicing

One API for Peppol, clearance and e-reporting

At the core is a single REST API to generate, submit, receive and track e-invoices in every supported country. Behind that API, ClearTax supports Peppol BIS Billing 3.0 and PINT AE and connects to government platforms such as ZATCA Fatoora in Saudi Arabia, the IRP in India, KSeF in Poland and LHDN MyInvois in Malaysia. In France, ClearTax operates as a Plateforme Agréée. The ERP connects once, and the difference between a Peppol country and a clearance country is handled behind the API. Businesses without API access can, according to ClearTax, also upload invoices through Excel.

ERP integration and AI field mapping

For SAP ECC and SAP S/4HANA, ClearTax offers a certified add-on, and it connects to Microsoft Dynamics 365 Finance & Operations and Business Central. ClearTax states that it also integrates with Oracle Fusion, Oracle E-Business Suite, point-of-sale systems and other ERP, AP, AR and billing systems. Field mapping between the ERP and the target format is AI-assisted, which ClearTax says reduces set-up from weeks to hours. ClearTax also says it applies regulatory changes centrally in the cloud, so the ERP does not need rework when a mandate changes.

Validation, routing and status tracking

Every invoice is validated against Peppol BIS Billing 3.0 and local formats such as XRechnung, ZUGFeRD and PINT AE. For Peppol traffic, the platform looks up the recipient in the Peppol address book (SMP), routes the document and tracks its status end to end. Failed submissions are detected, diagnosed and resubmitted automatically, without manual intervention. In clearance countries, where an invoice without approval is not valid, that saves finance teams a great deal of investigation.

Accounts payable and VAT reconciliation

Multi-country e-invoicing affects the payables side too. ClearTax AP Automation processes incoming Peppol e-invoices and, using OCR and AI, PDF and paper invoices, then validates them and posts them to the ERP. According to ClearTax, it also matches e-invoice data against the books to flag VAT reporting differences early.

Security and data residency

ClearTax holds ISO 27001:2022 and SOC 2 Type II certification and reports GDPR compliance, AES-256 encryption at rest, TLS 1.2 or higher in transit, MFA, SAML or OIDC single sign-on and role-based access. For businesses subject to data localisation requirements, ClearTax states that invoice data stays in-country or in-region on sovereign cloud infrastructure, including in the EU, the United Arab Emirates and Saudi Arabia.

Ready for ViDA

ClearTax states that its platform is built for ViDA from 2030. According to ClearTax, an existing set-up carries over when EU digital reporting goes live, without rebuilding the ERP integration.

Practical checklist for businesses: how to choose and prepare for multi-country e-invoicing

Map countries and entities. List, per legal entity, the countries where you invoice and purchase, the volumes, and whether flows are B2B, B2G or B2C.
Build a mandate timeline. Line up, per country, the obligations to receive, issue and report, with absolute go-live dates and turnover thresholds. Plan back from the earliest date.
Identify the model per country. Separate Peppol countries, clearance countries and countries with e-reporting. That determines whether you need a Peppol Service Provider, a registered or accredited provider, or both.
Map your ERP sources. Which ERP, billing and point-of-sale systems create invoices? Check per source whether mandatory fields (such as VAT numbers, Peppol IDs and units of measure) are available and clean.
Arrange identification and registration. Make sure every entity has a Peppol ID and is findable in the Peppol address book, and that registrations with national platforms are requested in time.
Verify your provider’s status per country. Ask for demonstrable certifications and registrations, for example on the OpenPeppol list or the official French list of Plateformes Agréées.
Assess data residency and security. Document where invoice data is stored, which certifications apply and how incidents are reported.
Do not overlook accounts payable. Obligations to receive often start before obligations to issue. Set up processing of incoming e-invoices and the link to your payables ledger at the same time.
Plan ahead for ViDA. Choose an architecture that can absorb cross-border reporting from 1 July 2030 without new ERP integrations.

Sources

Learn more about ClearTax

Visit the ClearTax profile on Peppol.now for features, networks and certifications, or request a demo directly from ClearTax. Prefer to explore the wider market for multi-country e-invoicing first? The overview of Peppol suppliers lets you compare service providers by country, network and feature.

Why multi-country e-invoicing is hard

Who ClearTax is

How ClearTax approaches multi-country e-invoicing