Free tool
Company and VAT payer check
Enter an IČO or DIČ to see the name, address, whether the company is a VAT payer, whether it is an unreliable payer and which bank accounts it has published. Add the account from an invoice to see whether it is among the published ones.
Enter an IČO (8 digits) or a DIČ (CZ and digits).
When the check pays off
- A new supplier – do the name and address match the invoice? Is it a VAT payer when it charges VAT?
- Every payment to a VAT payer – is the invoice's account among the published ones? Otherwise you risk liability for the supplier's VAT – since 2025, at any amount.
- A new customer – your invoice needs the right name, address and VAT ID.
Questions people ask
What does the check show?
From the ARES register the company name, address and VAT ID. For a VAT payer, from the VAT register whether it is an unreliable payer, and its published bank accounts. Add the account from an invoice and we say whether it is among the published ones.
Why check that the account is published?
Since 2025: if you, as a VAT payer, pay a supplier – even partly and of any amount – into an account it has not published in the register, you are presumed to have known its VAT would go unpaid, and you risk liability for it. The same applies to an unreliable payer. The former CZK 540,000 limit no longer applies. Our guide (in Czech) explains it in detail.
How current is the data?
We ask the ARES register and the Ministry of Finance VAT register directly. Answers are kept briefly (payer status at most a day) to spare the registers. For liability, the day of payment counts – check again then and keep the result.
Can I check a sole trader?
Yes, a sole trader by IČO. A VAT payer whose DIČ derives from a birth number is checked by its DIČ (CZ and 9–10 digits) – we show the VAT register status and published accounts.