What is the number checked against?

VIES, the European Commission's VAT Information Exchange System, which queries each member state's own registry. It is the same source national tax authorities use.

Will I get the company name and address?

Where the member state discloses them. Ireland, for example, returns the registered name and address; some states return validity only. The response says which.

Which countries are covered?

All 27 EU member states plus Northern Ireland under the XI prefix, 28 formats in total, with per-country syntax rules and examples.

What if VIES is down?

Malformed numbers are rejected before any registry call. For well-formed ones the response reports when a member state's registry is unavailable, and the countries endpoint shows live availability per state. Successful results are cached for 15 minutes.

What does a call cost?

2 tokens for a registry validation and 1 for a format-only check.

FinanceMAINTAINED2 tokens / call

VAT Validation API

Validate EU VAT numbers against VIES with registered name and address where disclosed

Validate EU VAT numbers against the official registry. Every check goes to VIES — the European Commission's VAT Information Exchange System, the same source national tax authorities use — and comes back as clean JSON: valid or not, plus the registered company name and address where the member state discloses them (Ireland does: IE6388047V → GOOGLE IRELAND LIMITED, 3rd Floor, Gordon House, Barrow Street; Germany validates but withholds identity — that's the German authority's policy, not a gap). Malformed numbers fail fast against the published per-country syntax rules WITHOUT burning a registry call, with the expected format and an example in the response. Accepts one combined string ('de 811-907-980' is cleaned up), or country + number separately; Greece's GR/EL quirk and Austria's ATU prefix are handled; GB numbers get a clear post-Brexit pointer to HMRC while Northern Ireland (XI) still works. A countries endpoint lists all 28 supported formats with LIVE per-member-state VIES availability, and registry answers are cached 15 minutes to absorb checkout bursts. B2B invoicing, reverse-charge logic, checkout tax exemption, supplier onboarding — the compliance check every EU-facing SaaS needs.

Every call needs an X-Api-Key header. A free key includes 500 tokens a month, no card required. 2 tokens per call, so the free plan covers about 250 calls a month.

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response.json

{
  "ok": true,
  "country": "IE",
  "country_name": "Ireland",
  "vat_number": "IE6388047V",
  "valid": true,
  "syntax_valid": true,
  "name": "GOOGLE IRELAND LIMITED",
  "address": "3RD FLOOR, GORDON HOUSE, BARROW STREET, DUBLIN 4",
  "request_date": "2026-09-13T06:12:47.979Z",
  "checked_against": "VIES (EU official registry)"
}

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Use cases for VAT Validation API

Confirm a business customer's VAT registration at checkout before applying the reverse charge on a cross-border B2B sale.
Verify supplier VAT numbers during vendor onboarding and store the registered name for your records.
Catch malformed numbers instantly with the format check, before a registry call is made.
Monitor which member states' registries are currently answering, so your checkout can degrade gracefully during outages.

VAT Validation API endpoints

Every endpoint with its parameters and a real example response.

OpenAPI definition Postman workspace

GETCheck Format
GETData Sources
GETSupported Countries
GETValidate VAT Number

GETCheck Format

https://api-vat.dataandapis.com/v1/vat/format

Query parameters

Parameter	Example
vat	ATU13585627	Required

Example request

curl "https://api-vat.dataandapis.com/v1/vat/format?vat=ATU13585627" \
  -H "X-Api-Key: YOUR_API_KEY"

Example response

{
  "ok": true,
  "country": "AT",
  "country_name": "Austria",
  "vat_number": "ATU13585627",
  "syntax_valid": true,
  "expected_format": "ATU + 8 digits",
  "example": "ATU13585627"
}

GETData Sources

https://api-vat.dataandapis.com/v1/sources

This endpoint takes no parameters.

Example request

curl "https://api-vat.dataandapis.com/v1/sources" \
  -H "X-Api-Key: YOUR_API_KEY"

Example response

{
  "ok": true,
  "sources": [
    {
      "slug": "vies",
      "name": "VIES — VAT Information Exchange System",
      "publisher": "European Commission (DG TAXUD)",
      "licence": "official EU validation service",
      "source_url": "https://ec.europa.eu/taxation_customs/vies/",
      "file_url": "https://ec.europa.eu/taxation_customs/vies/rest-api/check-vat-number",
      "cadence": "live registry lookups; results cached 15 minutes"
    }
  ]
}

GETSupported Countries

https://api-vat.dataandapis.com/v1/vat/countries

This endpoint takes no parameters.

Example request

curl "https://api-vat.dataandapis.com/v1/vat/countries" \
  -H "X-Api-Key: YOUR_API_KEY"

Example response

{
  "ok": true,
  "countries": [
    {
      "country": "AT",
      "name": "Austria",
      "format": "ATU + 8 digits",
      "example": "ATU13585627",
      "vies_availability": "Available"
    },
    {
      "country": "BE",
      "name": "Belgium",
      "format": "BE + 10 digits (leading 0 or 1)",
      "example": "BE0403019261",
      "vies_availability": "Available"
    },
    {
      "country": "BG",
      "name": "Bulgaria",
      "format": "BG + 9 or 10 digits",
      "example": "BG131071587",
      "vies_availability": "Available"
    },
    {
      "country": "CY",
      "name": "Cyprus",
      "format": "CY + 8 digits + 1 letter",
…

Show full response

{
  "ok": true,
  "countries": [
    {
      "country": "AT",
      "name": "Austria",
      "format": "ATU + 8 digits",
      "example": "ATU13585627",
      "vies_availability": "Available"
    },
    {
      "country": "BE",
      "name": "Belgium",
      "format": "BE + 10 digits (leading 0 or 1)",
      "example": "BE0403019261",
      "vies_availability": "Available"
    },
    {
      "country": "BG",
      "name": "Bulgaria",
      "format": "BG + 9 or 10 digits",
      "example": "BG131071587",
      "vies_availability": "Available"
    },
    {
      "country": "CY",
      "name": "Cyprus",
      "format": "CY + 8 digits + 1 letter",
      "example": "CY10259033P",
      "vies_availability": "Available"
    },
    {
      "country": "CZ",
      "name": "Czechia",
      "format": "CZ + 8, 9 or 10 digits",
      "example": "CZ25123891",
      "vies_availability": "Available"
    },
    {
      "country": "DE",
      "name": "Germany",
      "format": "DE + 9 digits",
      "example": "DE811907980",
      "vies_availability": "Available"
    },
    {
      "country": "DK",
      "name": "Denmark",
      "format": "DK + 8 digits",
      "example": "DK13585628",
      "vies_availability": "Available"
    },
    {
      "country": "EE",
      "name": "Estonia",
      "format": "EE + 9 digits",
      "example": "EE100931558",
      "vies_availability": "Available"
    },
    {
      "country": "EL",
      "name": "Greece",
      "format": "EL + 9 digits",
      "example": "EL094014201",
      "vies_availability": "Available"
    },
    {
      "country": "ES",
      "name": "Spain",
      "format": "ES + letter/digit + 7 digits + letter/digit",
      "example": "ESA28015865",
      "vies_availability": "Available"
    },
    {
      "country": "FI",
      "name": "Finland",
      "format": "FI + 8 digits",
      "example": "FI09073468",
      "vies_availability": "Available"
    },
    {
      "country": "FR",
      "name": "France",
      "format": "FR + 2 check chars + 9 digits",
      "example": "FR40303265045",
      "vies_availability": "Available"
    },
    {
      "country": "HR",
      "name": "Croatia",
      "format": "HR + 11 digits",
      "example": "HR24595836665",
      "vies_availability": "Available"
    },
    {
      "country": "HU",
      "name": "Hungary",
      "format": "HU + 8 digits",
      "example": "HU12892312",
      "vies_availability": "Available"
    },
    {
      "country": "IE",
      "name": "Ireland",
      "format": "IE + 7 digits + 1-2 letters (or old style)",
      "example": "IE6388047V",
      "vies_availability": "Available"
    },
    {
      "country": "IT",
      "name": "Italy",
      "format": "IT + 11 digits",
      "example": "IT00743110157",
      "vies_availability": "Available"
    },
    {
      "country": "LT",
      "name": "Lithuania",
      "format": "LT + 9 or 12 digits",
      "example": "LT119511515",
      "vies_availability": "Available"
    },
    {
      "country": "LU",
      "name": "Luxembourg",
      "format": "LU + 8 digits",
      "example": "LU15027442",
      "vies_availability": "Available"
    },
    {
      "country": "LV",
      "name": "Latvia",
      "format": "LV + 11 digits",
      "example": "LV40003032949",
      "vies_availability": "Available"
    },
    {
      "country": "MT",
      "name": "Malta",
      "format": "MT + 8 digits",
      "example": "MT11679112",
      "vies_availability": "Available"
    },
    {
      "country": "NL",
      "name": "Netherlands",
      "format": "NL + 12 chars (usually 9 digits + B + 2 digits)",
      "example": "NL804115217B01",
      "vies_availability": "Available"
    },
    {
      "country": "PL",
      "name": "Poland",
      "format": "PL + 10 digits",
      "example": "PL5260250995",
      "vies_availability": "Available"
    },
    {
      "country": "PT",
      "name": "Portugal",
      "format": "PT + 9 digits",
      "example": "PT500278725",
      "vies_availability": "Available"
    },
    {
      "country": "RO",
      "name": "Romania",
      "format": "RO + 2 to 10 digits",
      "example": "RO11198699",
      "vies_availability": "Available"
    },
    {
      "country": "SE",
      "name": "Sweden",
      "format": "SE + 10 digits + 01",
      "example": "SE556036079301",
      "vies_availability": "Available"
    },
    {
      "country": "SI",
      "name": "Slovenia",
      "format": "SI + 8 digits",
      "example": "SI15012557",
      "vies_availability": "Available"
    },
    {
      "country": "SK",
      "name": "Slovakia",
      "format": "SK + 10 digits",
      "example": "SK2020317068",
      "vies_availability": "Available"
    },
    {
      "country": "XI",
      "name": "Northern Ireland",
      "format": "XI + 9 or 12 digits (goods only, post-Brexit)",
      "example": "XI110305878",
      "vies_availability": "Available"
    }
  ]
}

GETValidate VAT Number

https://api-vat.dataandapis.com/v1/vat/validate

Query parameters

Parameter	Example
country	IE	Optional
number	6388047V	Optional
vat	IE6388047V	Optional

Example request

curl "https://api-vat.dataandapis.com/v1/vat/validate?country=IE&number=6388047V&vat=IE6388047V" \
  -H "X-Api-Key: YOUR_API_KEY"

Example response

{
  "ok": true,
  "country": "IE",
  "country_name": "Ireland",
  "vat_number": "IE6388047V",
  "valid": true,
  "syntax_valid": true,
  "name": "GOOGLE IRELAND LIMITED",
  "address": "3RD FLOOR, GORDON HOUSE, BARROW STREET, DUBLIN 4",
  "request_date": "2026-09-13T06:12:47.979Z",
  "checked_against": "VIES (EU official registry)"
}

Where the data comes from

Source: The European Commission's VIES service, queried live, plus the published VAT number formats of the 27 EU member states and Northern Ireland.
Freshness: Validated live against VIES on each call, with results cached for 15 minutes.

One install. Every endpoint.

No proprietary SDKs needed. Any HTTP client works. Pick your language and paste.

3languages

4endpoints

RESTarchitecture

1key for all APIs

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import axios from 'axios';

const { data } = await axios.get(
  'https://api-vat.dataandapis.com/v1/vat/format',
  { headers: { 'X-Api-Key': process.env.API_KEY } }
);

VAT Validation API · X-Api-Key

Explore the endpoints

Browse request parameters and inspect live example responses.

Available Endpoints

Request Parameters

API URL

Headers

X-Api-Key

Query Parameters

vat(Required)

Target:

Client:

import axios from 'axios';

const url = 'https://api-vat.dataandapis.com/v1/vat/format';
const { data } = await axios.get(url, {
  headers: { 'X-Api-Key': 'YOUR_API_KEY' }
});