Reg. Nr.
Danish bank accounts use a 4-digit registration number (Reg. Nr.) to identify the bank or branch, paired with a 6–10 digit account number. The system is managed by Finance Denmark (Finans Danmark) and used for all domestic transfers.
At a glance
Country
Denmark
Identifier
Reg
Format
4 digits
Used for
Domestic transfers
Format breakdown
0710
Reg. Nr.
1–4
Bank/branch identifier
1234567890
Account Number
Separate
6–10 digit account number
How Reg works
The registration number identifies the bank or branch, and the account number identifies the individual account. Together they form the basis of the Danish IBAN. The Nationalbanken maintains the clearing infrastructure.
Where to find yours
On your bank statement, bank card, in your online banking app (Netbank/Mobilbank), or by contacting your bank.
Payment systems in Denmark
| System | Speed | Description |
|---|---|---|
| Straksclearing | Near-instant | Real-time domestic transfers between Danish banks |
| Sumclearing | Same day | Net settlement for batch payments |
| MobilePay | Instant | Denmark's dominant mobile payment app for P2P and retail |
Major banks in Denmark
Good to know
Danish IBANs are 18 characters: DK + 2 check digits + 4-digit Reg. Nr. + 10-digit account number.
MobilePay is used by over 90% of Danes — it links directly to your bank account via phone number.
Registration numbers are unique per branch, though large banks share ranges across locations.
Related tools
Other countries
Frequently asked questions
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