Umsatzsteuer-Identifikationsnummer (UID-Nummer)

Austria VAT number format

Q: What does a Austria VAT number look like?

ATU + 8 digits, for example ATU13585627. The local name is Umsatzsteuer-Identifikationsnummer (UID-Nummer) (UID).

Austria VAT numbers (UID) are written as ATU + 8 digits, for example ATU13585627.

Country code: AT
Format: ATU + 8 digits
Example: ATU13585627
Local name: Umsatzsteuer-Identifikationsnummer (UID-Nummer)
Register: VIES (EU)
Standard VAT rate: 20%

Regular expression

^ATU\d{8}$

Checks the format only. Most countries also use a check digit; the validator checks both.

Check a Austria VAT number

Include the country prefix. Checked against VIES (EU) and HMRC (UK) in real time.

How to validate a Austria VAT number

Format: remove spaces, dots and dashes and compare with ^ATU\d{8}$.
Check digit: Austria numbers contain a checksum that catches typos. The validator above checks it.
Registration: only the EU's VIES system can confirm that the number is currently registered for VAT. VIES forwards the question to the Austria tax authority.

Check Austria VAT numbers by API

curl "https://api.vatcheckapi.com/v2/check?vat_number=ATU13585627" -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 Austria provides them.

Frequently asked questions

What does a Austria VAT number look like?

ATU + 8 digits, for example ATU13585627. The local name is Umsatzsteuer-Identifikationsnummer (UID-Nummer) (UID).

How do I check a Austria VAT number?

Enter it in the validator on this page. It checks the format and checksum 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.

Is the Austria VAT number the same as the tax number?

Not always. In many countries the VAT number is the company's tax or registration number with the country prefix, in others it is a separate number. Only VAT-registered businesses have one, and only those numbers can be validated in VIES.

What is the VAT rate in Austria?

The standard rate is 20%. See VAT rates in Austria 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 with VIES and HMRC, 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=ATU13585627

{
  "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",
    "checked_at": "2023-01-11T12:30:28.000000Z"
  }
}

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