Guides
Guides
Short, neutral guides. Legal statements appear only once we have verified them in an official source; until then a guide says so.
- EU VAT number formats by country
The structure of VAT identification numbers in each country we cover, with the prefix VIES expects and verification status.
- One Stop Shop (OSS) for e-commerce sellers
How the EU One Stop Shop lets online sellers declare VAT due in other member states from one country, and its limits.
- Reverse charge for cross-border B2B services and goods
When the customer, not the supplier, accounts for VAT on cross-border B2B supplies in the EU, and what to check first.
- VAT on invoices: what an EU invoice must show
The VAT details an invoice in the EU must contain, including the VAT numbers and rate, and where national rules add more.
- When VIES says a VAT number is invalid
What an 'invalid' or 'unavailable' VIES answer means, common causes, and what to do before you invoice.