VAT Reporting Guide 2026

Where your business is registered for VAT, your business will need to ensure that it is complying with local VAT reporting obligations.
EU Vat

amavat

VAT Compliance in Europe – 2026 Guide

VAT compliance obligations vary significantly across Europe. In addition to traditional VAT returns, businesses may also be subject to e-invoicing, SAF-T reporting, EC Sales Lists, Intrastat declarations, OSS reporting and other local digital reporting requirements.

VAT Returns

Once your business is registered for VAT in a country, you will generally be required to submit periodic VAT returns to the local tax authority.

To fulfil your VAT obligations, you should:

  • Issue invoices that comply with local invoicing requirements;
  • Apply the correct VAT treatment to domestic, EU and international transactions;
  • Report sales, purchases and VAT adjustments correctly on VAT returns;
  • Respond to requests and audits from local tax authorities;
  • Pay VAT liabilities within the prescribed deadlines; and
  • Maintain appropriate records supporting VAT declarations.

Depending on the country, VAT returns may be filed monthly, quarterly, annually or under a combination of reporting periods.

OSS and Cross-Border B2C Sales

Businesses making cross-border B2C sales within the EU should assess whether the One Stop Shop (OSS) scheme can simplify their VAT compliance obligations.

OSS allows eligible businesses to report VAT due in multiple EU Member States through a single registration and a single quarterly return submitted in their Member State of identification. The scheme is commonly used for WSTO (distance sales of goods within the EU) and certain cross-border services supplied to consumers.

For businesses established in Poland, OSS registrations and declarations are administered by the Second Tax Office Warszawa-Śródmieście.

E-Invoicing and Digital Reporting

Many European countries have introduced mandatory e-invoicing or continuous transaction controls (CTC).

Examples include:

  • Mandatory B2G e-invoicing in many EU Member States;
  • Domestic e-invoicing obligations in countries such as Italy;
  • SAF-T reporting requirements in countries such as Portugal;
  • KSeF e-invoicing obligations in Poland from 2026.

Businesses should review local digital reporting requirements in every country where they are VAT registered.

Invoice Compliance

Correct invoicing remains one of the most important aspects of VAT compliance.

Businesses should ensure that invoices contain:

  • Supplier details;
  • Customer details;
  • VAT identification numbers where required;
  • Accurate transaction descriptions;
  • Correct VAT rates;
  • References to exemptions or zero-rating where applicable;
  • Reverse charge wording where required by local legislation.

Incorrect invoicing can result in VAT assessments, penalties and difficulties recovering input VAT.

Intrastat Reporting

Businesses moving goods between EU Member States may be required to submit Intrastat declarations once local reporting thresholds are exceeded.

To ensure compliance:

  • Review trade flows regularly;
  • Determine whether arrivals, dispatches or both must be reported;
  • Use the correct commodity codes;
  • Verify statistical values and supplementary units;
  • Ensure transport methods and transaction codes are correctly reported.

Intrastat requirements and thresholds differ between Member States and may change annually.

EC Sales Lists (ECSL)

Businesses making certain cross-border B2B supplies within the EU may be required to submit EC Sales Lists (ECSL).

These reports are used by tax authorities to verify the correct VAT treatment of:

  • Intra-Community supplies of goods (WDT);
  • Certain cross-border B2B services;
  • Triangulation transactions.

To ensure compliance:

  • Verify customer VAT numbers through VIES;
  • Report transactions against the correct customer VAT number;
  • Ensure values reported match VAT returns;
  • Submit reports within local deadlines.

VAT Audits and Record Keeping

Tax authorities across Europe increasingly rely on electronic data, e-invoices and digital reporting systems to identify VAT risks.

Businesses should:

  • Maintain complete VAT records;
  • Retain invoices and supporting documentation;
  • Reconcile VAT returns with accounting records;
  • Monitor VAT registrations and filing deadlines;
  • Review transactions regularly to identify VAT risks.

Failure to comply with local VAT obligations may result in assessments, penalties, interest charges and restrictions on VAT recovery.

How amavat® Can Help

Managing VAT obligations across multiple countries can be complex. amavat® provides a single point of contact for VAT registrations, VAT returns, OSS reporting, Intrastat declarations, EC Sales Lists and ongoing VAT compliance across Europe.

Our specialists help businesses navigate local VAT requirements, reduce compliance risks and maintain efficient cross-border VAT processes.

Iza

The author of the article is the amavat® team

amavat® is one of the leading firms providing comprehensive accounting services for Polish e-commerce companies and VAT Compliance across the European Union, the United Kingdom, and Switzerland. The company also offers a proprietary innovative application that integrates accounting with IT solutions, allowing for the optimization of accounting processes and integration with major marketplaces such as Allegro and Kaufland, as well as integrators like BaseLinker.

Ask a Question »
This publication is non-binding information and serves for general information purposes. The information provided does not constitute legal, tax or management advice and does not replace individual advice. Despite careful processing, all information in this publication is provided without any guarantee for the accuracy, up-to-date nature or completeness of the information. The information in this publication is not suitable as the sole basis for action and cannot replace actual advice in individual cases. The liability of the authors or amavat® are excluded. We kindly ask you to contact us directly for a binding consultation if required. The content of this publication iis the intellectual property of amavat® or its partner companies and is protected by copyright. Users of this information may download, print and copy the contents of the publication exclusively for their own purposes.