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IBAN Structure Denmark

Last reviewed: · Source: ISO 13616 / SWIFT IBAN Registry

Denmark's IBAN is compact at 18 characters and follows the pattern DKkk BBBB CCCC CCCC CC. After DK and the check digits come a 4-digit Reg.nr. bank code (registration number, e.g. 3000 for Danske Bank, 0040 for Nordea Danmark), the 9-digit account number and a single national check digit. Denmark is in SEPA but NOT in the euro area — the currency is the krone (DKK). For international payments, routing details, fees and timing depend on the banks, currency and route; check them in advance with your bank.

Structural fields are based on the official SWIFT IBAN Registry. The editorial method and validation boundary are documented on our German editorial page (German).

Overview

CountryDenmark (DK)
IBAN length18 characters
FormatDKkk BBBB CCCC CCCC CC

Visual breakdown

Fictitious format example, not payment data:

DK5000400440116243
Country codeCheck digitsReg. numberAccount numberNational check digit(s)

Character-by-character explanation

SegmentCharactersLengthExplanation
Country codeDK2DK for Denmark (ISO 3166-1)
Check digits502Two check digits per MOD-97
Reg. number004044-digit bank code (registration number)
Account number04401162499-digit account number
National check digit(s)311 national check digit

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Frequently asked questions

How do I check the length of an IBAN from Denmark?
Remove spaces and count 18 characters. The first two characters are DK; the remaining positions follow DKkk BBBB CCCC CCCC CC. A different length is formally invalid for this country format.
What do the check digits in a Denmark IBAN mean?
The two check digits are calculated from the complete IBAN using ISO 7064 MOD-97. They help detect format and transcription errors. A passing checksum does not confirm that an account exists or identify its account holder.
What should I do when an IBAN is formally invalid?
Check the country code, character count, letters and digits, and the check digits. Compare the entry with your bank records or ask the bank for the correct IBAN. This checker validates structure and checksum; it does not verify account ownership or payment approval.

IBAN structure for other countries

Germany

22 characters · DEkk BBBB BBBB CCCC CCCC CC

Austria

20 characters · ATkk BBBB BCCC CCCC CCCC

Switzerland

21 characters · CHkk BBBB BCCC CCCC CCCC C

Liechtenstein

21 characters · LIkk BBBB BCCC CCCC CCCC C

France

27 characters · FRkk BBBB BGGG GGCC CCCC CCCC CKK

Spain

24 characters · ESkk BBBB GGGG KKCC CCCC CCCC

Italy

27 characters · ITkk XBBB BBGG GGGC CCCC CCCC CCC

Portugal

25 characters · PTkk BBBB SSSS CCCC CCCC CCCK K