VAT Reporting Guide 2026
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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.

