Norway VAT number: format and validation

By Remco from Avatcado

Format

NO followed by 9 digits with an MVA suffix. The local term is organisasjonsnummer + MVA (merverdiavgift) (MVA-nummer, Norwegian).

Pattern: /^\d{9}$/

  • The 9 digits are the organization number from the Enhetsregisteret; the MVA suffix signals registration in the VAT Register
  • Every Norwegian organization has an org number, but MVA registration is separate and required only above NOK 50,000 taxable turnover

Example of a registered number: NO 982 463 718 MVA

Check digit

Norway VAT numbers carry a check digit (MOD 11): The 9th digit is a check digit: the weighted sum of digits 1-8 (weights 3,2,7,6,5,4,3,2) mod 11 determines it; a remainder of 1 is invalid.

Check a Norway VAT number

Validated live against the Bronnoysund Register Centre (Enhetsregisteret and the VAT Register) (official register).

Enter a VAT number to see the live API response

Validate via API

The same validation as an API call, with the example number above:

curl "https://api.avatcado.com/v1/validate?vat_number=NO982463718MVA" \
  -H "Authorization: Bearer avat_live_your_api_key"
import Avatcado from "@avatcado/node";

const avatcado = new Avatcado("avat_live_your_api_key");
const { data, error } = await avatcado.vat.validate({
  vatNumber: "NO982463718MVA",
});

if (data?.data.valid) {
  console.log(`Registered: ${data.data.company?.name}`);
}

Free tier includes 500 validations per month. Get an API key or read the API documentation.

Frequently asked questions

Is every Norwegian organization number a VAT number?

No: the org number identifies the entity, and only businesses registered in the Merverdiavgiftsregisteret (mandatory above NOK 50,000 turnover) may add the MVA suffix and charge VAT.

How do I check a Norwegian VAT number for free?

The Bronnoysund open API returns any org number's details, including the registrertIMvaregisteret flag, with no authentication. This checker uses the same register.

Related guides

VAT rate in Norway

The standard VAT rate in Norway is 25%. Reduced rates: 15%, 12%, 0%. See all Norway VAT rates.

Sources