Käibemaksukohustuslase number

Estonia VAT number format

Estonia VAT numbers (KMKR) are written as EE + 9 digits, for example EE100931558.

Country code: EE
Format: EE + 9 digits
Example: EE100931558
Local name: Käibemaksukohustuslase number
Register: VIES (EU)
Standard VAT rate: 24%

Regular expression

^EE\d{9}$

Checks the format only. The validator below also checks the check digit.

Check an Estonia VAT number

Include the country prefix. EU numbers are checked against VIES in real time, UK numbers with a separate live check.

How Estonia VAT numbers are built

EE followed by 9 digits starting with 10: the KMKR number, which Estonia issues on VAT registration.

Check digit

The 9th digit is a weighted modulo-10 check digit (weights 3, 7, 1). The validator checks it.

Common mistakes

The 8-digit registry code (registrikood) of a company is not its VAT number.

Is the number registered?

A valid format and check digit only mean the number could exist. Whether it is currently registered for VAT is known to the Estonian Tax and Customs Board (Maksu- ja Tolliamet), and VIES asks that register for you. Where Estonia shares them, VIES also returns the registered name and address.

Check an Estonia number with the validator above, in the VAT number checker, or up to 50 at once with the bulk VAT validator.

Check Estonia VAT numbers by API

curl "https://api.vatcheckapi.com/v2/check?vat_number=EE100931558" -H "apikey: YOUR-API-KEY"

The response says whether the format and checksum are valid and whether the number is registered, with name and address where Estonia provides them.

Frequently asked questions

What does an Estonia VAT number look like?

EE followed by 9 digits starting with 10: the KMKR number, which Estonia issues on VAT registration. The local name is Käibemaksukohustuslase number (KMKR), for example EE100931558.

How do I check an Estonia VAT number?

Enter it in the validator on this page. It checks the format and check digit and asks the EU's VIES system whether the number is registered, with company name and address where available. The vatcheckapi API does the same from your code.

Do Estonia VAT numbers have a check digit?

The 9th digit is a weighted modulo-10 check digit (weights 3, 7, 1). The validator checks it.

What is the most common mistake with Estonia VAT numbers?

The 8-digit registry code (registrikood) of a company is not its VAT number.

What is the VAT rate in Estonia?

The standard rate is 24%. See VAT rates in Estonia for reduced rates and a calculator.

VAT validation API

Validate VAT numbers in your app

vatcheckapi checks the format and checksum of EU and UK VAT numbers and confirms the registration live (VIES for EU numbers), with company name and address where the country provides them.

/v2/check documentation VAT number API All documentation

150 free validations every month. No credit card required.

GET https://api.vatcheckapi.com/v2/check?vat_number=LU26375245

{
  "country_code": "LU",
  "vat_number": "26375245",
  "format_valid": true,
  "checksum_valid": true,
  "registration_info": {
    "is_registered": true,
    "name": "AMAZON EUROPE CORE S.A R.L.",
    "address": "38, AVENUE JOHN F. KENNEDY\nL-1855  LUXEMBOURG",
    "address_parts": null,
    "checked_at": "2026-10-16T09:12:44.000000Z"
  },
  "registration_info_history": []
}

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