Denmark IBAN Format
Denmark IBANs are 18 characters and start with DK. Paste one below to check its length and MOD-97 checksum.
Enter an IBAN to check its country, length and MOD-97 checksum.
Note This checks that the IBAN is well-formed — correct country, correct length and a valid checksum. It cannot confirm that the account actually exists or belongs to a particular person. Always confirm payment details with the recipient.
How a Denmark IBAN is built
DenmarkIBAN & VAT reference
| Country code | DK |
|---|---|
| IBAN length | 18 characters |
| Example | DK50 0040 0440 1162 43 |
| SEPA member | Yes |
| VAT prefix | DK |
| VAT / tax number | DK + 8 digits |
How to check a Denmark IBAN
- 01 Paste the IBAN into the box above — spaces and lower-case are fine, they are normalised for you.
- 02 The checker confirms it starts with DK, is 18 characters, and passes the MOD-97 checksum.
- 03 A valid IBAN is shown formatted in groups of four; any failed check is called out so you know what to fix.
Frequently asked questions
What is the IBAN format for Denmark?
A Denmark IBAN is 18 characters long. It starts with the country code "DK", followed by 2 check digits and the BBAN — 4-digit bank code + 9-digit account + 1 check digit. Example structure: DK50 0040 0440 1162 43 (a sample, not a real account).
How long is a Denmark IBAN?
Exactly 18 characters, including the "DK" country code and the 2 check digits. This length is fixed by the ISO 13616 registry and is the same for every Denmark bank.
What is the VAT number format for Denmark?
Denmark VAT numbers use the prefix "DK": DK + 8 digits. The VAT number is separate from the IBAN — one identifies the business for tax, the other identifies the bank account.
Does this Denmark IBAN checker upload my data?
No. The validator checks the country code, the 18-character length and the MOD-97 checksum entirely in your browser. Nothing you paste is sent anywhere.