Identifikacijska številka za DDV

Slovenia VAT number format

Q: What does a Slovenia VAT number look like?

SI + 8 digits, for example SI50223054. The local name is Identifikacijska številka za DDV (ID za DDV).

Slovenia VAT numbers (ID za DDV) are written as SI + 8 digits, for example SI50223054.

Country code: SI
Format: SI + 8 digits
Example: SI50223054
Local name: Identifikacijska številka za DDV
Register: VIES (EU)
Standard VAT rate: 22%

Regular expression

^SI\d{8}$

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

Check a Slovenia VAT number

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

How to validate a Slovenia VAT number

Format: remove spaces, dots and dashes and compare with ^SI\d{8}$.
Check digit: Slovenia 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 Slovenia tax authority.

Check Slovenia VAT numbers by API

curl "https://api.vatcheckapi.com/v2/check?vat_number=SI50223054" -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 Slovenia provides them.

Frequently asked questions

What does a Slovenia VAT number look like?

SI + 8 digits, for example SI50223054. The local name is Identifikacijska številka za DDV (ID za DDV).

How do I check a Slovenia 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 Slovenia 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 Slovenia?

The standard rate is 22%. See VAT rates in Slovenia 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=SI50223054

{
  "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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