Tools
Free, and no check needs an account — only Supplier Watch does, because an alert needs somewhere to go. Each one answers a single question about a supplier you are about to pay, and none of them ends in a score.
Start here
Invoice Checker
Drop in a supplier’s invoice, or paste its text, and the VAT numbers, bank accounts and email domains on it are read out in your browser — the file itself is never uploaded. Correct anything misread, then run every check at once.
The individual tools
Supplier Email Check
Paste a suspicious email — especially one asking to change bank details — and get a plain-language answer on whether it really came from your supplier’s domain. Read in your browser; the message is never uploaded.
Polish White List Check
Enter a Polish supplier’s NIP and the account from their invoice, and ask the Ministry of Finance whether that account is on the VAT white list today — the check Polish law expects before paying more than 15,000 PLN.
Supplier Watch
Re-checks a supplier you have already checked, and emails you only when something changes — a VAT registration ending, a company entering liquidation, a name reaching a sanctions list, a Polish account leaving the white list. Nothing arrives while everything is unchanged.
VAT Prefix Lookup
Type a VAT number or just its first two letters and get the country, the exact format that country uses, and whether what you have matches it. Runs entirely in your browser — nothing is sent anywhere, including the number.
Already on this site
- Vendor checker
- The five checks from one submission — VAT registration, IBAN, sanctions screening, sending domain and the company register.
- Coverage
- Which registry answers for which country, and what each one can and cannot confirm.
- 16 guides
- What each result actually means, and what to do about it before you pay.