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Iceland VAT Number Format (123456)

Virðisaukaskattur (VSK) number structure, regex & verified examples

Everything you need to know about Virðisaukaskattur (VSK) numbers in Iceland — they follow the pattern 5–6 digits (e.g. 123456), and can be verified against VIES. For the rates themselves, see Iceland VAT rates.

European countryVSK — VirðisaukaskatturISK

VAT Number Format

Structure

5–6 digits

Example format

123456

Regex

^\d{5,6}$

VAT numbers are not case-sensitive – lowercase input is automatically normalised. See how this format compares across all 27 EU countries.

Company and Tax Identifiers in Iceland

What the registrar, the register and each identifier are called, in every official language and in English. These are names, not numbers.

Company registrar
  • Icelandic: Skatturinn
  • English: Iceland Revenue and Customs
Company register
  • Icelandic: fyrirtækjaskrá
  • English: Register of Enterprises
Register number
  • Icelandic: kennitala
  • English: identification number
Tax ID
  • Icelandic: kennitala
  • English: identification number
VAT ID
  • Icelandic: VSK-númer
  • English: VAT number

Each name is checked against the registrar’s or tax authority’s own pages or legal text. The same names ship in eu-vat-rates-data.json and in GET /v1/rates.

More on Iceland

Iceland VAT rates via API

Get Iceland VAT rates via API — free, no key

No API key required
Request
curl "https://api.vatnode.dev/v1/rates/IS"
Response200 OK
{
  "countryCode": "IS",
  "countryName": "Iceland",
  "isEU": false,
  "vatName": "Virðisaukaskattur",
  "vatAbbr": "VSK",
  "currency": "ISK",
  "standardRate": 24,
  "reducedRates": [
    11
  ],
  "superReducedRate": null,
  "parkingRate": null,
  "vatNumberFormat": "5–6 digits",
  "vatNumberPattern": "^\\d{5,6}$",
  "identifiers": {
    "registryAuthorityName": {
      "is": "Skatturinn",
      "en": "Iceland Revenue and Customs"
    },
    "registryName": {
      "is": "fyrirtækjaskrá",
      "en": "Register of Enterprises"
    },
    "registryCodeName": {
      "is": "kennitala",
      "en": "identification number"
    },
    "taxIdName": {
      "is": "kennitala",
      "en": "identification number"
    },
    "vatIdName": {
      "is": "VSK-númer",
      "en": "VAT number"
    }
  },
  "updatedAt": "2026-11-12"
}

View full rates API reference →

Get Iceland VAT rates via package — offline, no HTTP

eu-vat-rates-data
Request
# npm install eu-vat-rates-data
import { getRate } from 'eu-vat-rates-data'

const rate = getRate('IS')
console.log(rate.standard) // IS standard VAT rate
getRate() result200 OK
{
  "country": "Iceland",
  "currency": "ISK",
  "eu_member": false,
  "vat_name": "Virðisaukaskattur",
  "vat_abbr": "VSK",
  "standard": 24,
  "reduced": [
    11
  ],
  "super_reduced": null,
  "parking": null,
  "format": "5–6 digits",
  "pattern": "^\\d{5,6}$",
  "identifiers": {
    "registry_authority_name": {
      "is": "Skatturinn",
      "en": "Iceland Revenue and Customs"
    },
    "registry_name": {
      "is": "fyrirtækjaskrá",
      "en": "Register of Enterprises"
    },
    "registry_code_name": {
      "is": "kennitala",
      "en": "identification number"
    },
    "tax_id_name": {
      "is": "kennitala",
      "en": "identification number"
    },
    "vat_id_name": {
      "is": "VSK-númer",
      "en": "VAT number"
    }
  }
}

View package on GitHub →

Frequently Asked Questions

What is the VAT number format in Iceland?▾

VAT numbers in Iceland follow the format: 5–6 digits. Example: 123456. VAT numbers are not case-sensitive – lowercase input is automatically normalised.

What is the VAT number regex pattern in Iceland?▾

Use this regular expression to validate VAT numbers in Iceland VSK number format locally:

^\d{5,6}$

Test against the uppercase number. Format validation catches typos locally.

What does VSK stand for in Iceland?▾

VSK stands for Virðisaukaskattur — the Icelandic name for Value Added Tax (VAT). It appears on Icelandic invoices and tax documents.