EU VAT guide
Reverse charge VAT number check
A VIES check is commonly used before applying reverse-charge treatment to cross-border EU B2B transactions.
What to verify
Confirm the buyer's VAT number, country, and business details before relying on reverse-charge handling.
Keep a record of the validation result and timestamp in the way your accountant or tax process requires.
Important caution
VAT Validate explains VIES responses but does not decide whether reverse charge applies to your transaction.
For edge cases, local rules, or audits, consult a qualified tax professional or the relevant tax authority.
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Related VIES guides
- VIES VAT checkerCheck an EU VAT number in VIES and understand what the response means.
- EU VAT number validationValidate EU VAT IDs and learn when VAT checks matter for cross-border trade.
- VIES consultation numberLearn what a VIES consultation number is and when it can appear.
- VIES errors explainedUnderstand common VIES errors such as MS_UNAVAILABLE, TIMEOUT, and SERVICE_UNAVAILABLE.
- VIES service unavailableWhat to do when VIES or a national VAT registry is unavailable.
- Is VIES down?Check whether the VIES gateway appears reachable and learn what VIES downtime means.