Estonia VAT API — Validate Estonia VAT Numbers in Real Time

REST JSON endpoint for verifying Käibemaks (km) numbers against the official EU VIES register, with national registry fallback where available and a VIES consultation number once you set your own VAT as requester in dashboard Settings.

Why an Estonia-Aware VAT API

In Estonia, VAT is known as Käibemaks (km) and the current standard rate is 24%. Every Estonia VAT number starts with the prefix EE and follows a fixed structure issued by the Estonian tax authority. A generic VAT validator that ignores country-specific quirks will accept malformed input, miss the country's format rules, and fail to surface the local registry identifier that accountants and auditors actually need.

The vatnode API normalises km input, runs the official VIES check, and returns a single JSON shape with the consultation number, company data where published, and the current Estonia VAT rates inline.

Estonia VAT Number Format

Structure
EE + 9 digits
Regex pattern
^EE\d{9}$

Real Estonia VAT numbers you can validate right now:

Validating Estonia VAT Numbers — Code Examples

All three examples validate the same Estonia VAT number EE100220641. To receive a consultation number back, set your own VAT as requester once in dashboard Settings — then every call, including these, returns a consultation number automatically, with no extra parameters.

curl
curl 'https://api.vatnode.dev/v1/vat/EE100220641' \
  -H "Authorization: Bearer YOUR_API_KEY"
Node.js (fetch)
const res = await fetch(
  'https://api.vatnode.dev/v1/vat/EE100220641',
  { headers: { Authorization: `Bearer ${process.env.VATNODE_API_KEY}` } }
)
const data = await res.json()
console.log(data.valid, data.companyName, data.consultationNumber)
Python (httpx)
import os, httpx

r = httpx.get(
    "https://api.vatnode.dev/v1/vat/EE100220641",
    headers={"Authorization": f"Bearer {os.environ['VATNODE_API_KEY']}"},
)
data = r.json()
print(data["valid"], data["companyName"], data["consultationNumber"])

What You Get Back

A successful response for a valid EstoniaVAT number, once you've set your VAT as requester in dashboard Settings, looks like this:

{
  "valid": true,
  "vatId": "EE100220641",
  "countryCode": "EE",
  "countryName": "Estonia",
  "companyName": "Tallink Grupp AS",
  "consultationNumber": "WAPIAAAAXk7ZpY3o",
  "source": "VIES",
  "countryVat": {
    "currency": "EUR",
    "standardRate": 24,
    "reducedRates": [9,13],
    "superReducedRate": null,
    "parkingRate": null
  },
  "verifiedAt": "2026-05-19T08:14:22Z"
}

When the number is not registered, valid is false and company fields are null. The consultationNumber is the EU VIES requestIdentifier — the documented audit reference for reverse-charge "reasonable care" evidence. It is returned once you set your own VAT as requester in dashboard Settings; otherwise it is null.

Estonia VAT Rates

vatnode returns the current Estonian km rates inline with every successful response. Today's rates (standard 24%, reduced 9%, 13%) are sourced from the European Commission TEDB feed, checked daily and updated on any change.

Rate typeValue
Standard24%
Reduced (1)9%
Reduced (2)13%

VIES vs National Fallback for Estonia

For Estonia, VIES is the sole authoritative source. vatnode does not run a national-registry fallback for this country today — when VIES is unavailable, the API surfaces a structured VIES_UNAVAILABLE error with retry guidance so you can degrade gracefully rather than silently accept unverified numbers.

Cached VIES responses (15-minute TTL on identical VAT IDs) absorb the majority of short outages transparently. For the full per-country fallback status, see the coverage matrix.

Estonia VAT API — FAQ

Is the Estonia VAT number the same as the company registration number?

No. The Estonian km number is issued for VAT purposes and is distinct from any local company registration number. vatnode returns the km number plus, when available, the registry identifier filed with the national company registry.

How fast is Estonia VAT validation through vatnode?

Cached responses return in single-digit milliseconds. Live VIES lookups for Estonia typically complete in under one second; a 15-minute Redis cache is applied to identical VAT IDs.

Does the API work for Estonian sole traders and small businesses?

Yes. If an Estonian sole trader or small business is registered for km and listed in VIES, vatnode validates the number and returns the same response shape as for corporate entities. The valid field is true regardless of legal form.

Does vatnode handle VIES outages for Estonia?

vatnode caches recent VIES responses and surfaces a clear VIES_UNAVAILABLE error code with structured retry guidance. vatnode does not use a national validity fallback for Estonia — only the VAT register itself can confirm a VAT registration, so during a VIES outage validation defers to the cached result or returns the error for safe handling.

What is the consultation number returned for checks in Estonia?

The consultationNumber is the VIES requestIdentifier — a unique reference issued by the EU VIES service that proves the check was performed against the official EU register on a specific date. It is the EU's documented mechanism for "reasonable care" evidence under the reverse-charge rules and is returned once you set your own VAT as requester in dashboard Settings — including for Estonia.

VAT APIs for Other EU Countries

See Also

Building an AI workflow? vatnode is also available to AI agents through the official MCP server — Claude, Cursor and ChatGPT can validate Estonia VAT numbers and look up rates directly in chat.

Start Validating Estonia VAT Numbers

100 validations per month on the free plan, no credit card required. REST JSON over HTTPS, VIES consultation number on qualified checks, EU-hosted by default.