Estonia VAT number: format and validation

By Remco from Avatcado

Format

EE followed by 9 digits. The local term is kaibemaksukohustuslasena registreerimise number (KMKR nr, Estonian).

Pattern: /^\d{9}$/

  • Issued numbers begin with 10 in practice
  • The KMKR number is separate from the 8-digit company registry code (registrikood); VAT groups share a single number under a representative member

Example of a registered number: EE102090374

Check digit

Estonia VAT numbers carry a check digit (Weighted MOD 10): The digits multiplied by weights 3,7,1,3,7,1,3,7 plus the check digit must total a multiple of 10.

Check a Estonia VAT number

Validated live against the Maksu- ja Tolliamet (Estonian Tax and Customs Board) (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=EE102090374" \
  -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: "EE102090374",
});

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

What is the VAT registration threshold in Estonia?

Registration is mandatory once taxable turnover exceeds EUR 40,000 from the start of a calendar year. The application goes to the Tax and Customs Board (EMTA) within three working days.

How do I look up an Estonian VAT number?

The e-Business Register (ariregister.rik.ee) shows each company's KMKR number on its public company page, and EMTA offers a VAT payer inquiry. VIES confirms the number EU-wide.

Related guides

VAT rate in Estonia

The standard VAT rate in Estonia is 24%. Reduced rates: 13%, 9%. See all Estonia VAT rates.

Sources