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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.

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",
  "vatName": "Virðisaukaskattur",
  "vatAbbr": "VSK",
  "standardRate": 24,
  "reducedRates": [
    11
  ],
  "superReducedRate": null,
  "parkingRate": null,
  "vatNumberFormat": "5–6 digits",
  "vatNumberPattern": "^\\d{5,6}$",
  "updatedAt": "2026-08-13"
}

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}$"
}

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.