Poland VAT API – Validate Poland VAT Numbers in Real Time

Why a Poland-Aware VAT API

In Poland, VAT is known as Podatek od towarów i usług (VAT) and the current standard rate is 23%. Every Poland VAT number starts with the prefix PL and follows a fixed structure issued by the Polish tax authority. A generic VAT validator that ignores country-specific quirks will accept malformed input and miss the country’s format rules.

The vatnode API normalises VAT input, runs the official VIES check, falls back to the Polish national company registry when VIES is unavailable, and returns a single JSON shape with the consultation number, company data where published, and the current Poland VAT rates inline.

Poland VAT Number Format

Real Poland VAT numbers you can validate right now:

• PL7342867148 — CD Projekt SA
• PL7740001454 — Orlen SA
• PL5260215088 — mBank SA

More of them live in the EU VAT number directory, grouped by member state.

Validating Poland VAT Numbers – Code Examples

All three examples validate the same Poland VAT number PL7342867148. To receive a consultation number back, set your own VAT as requester once in dashboard Account details – then every call, including these, returns a consultation number automatically, with no extra parameters.

curl 'https://api.vatnode.dev/v1/vat/PL7342867148' \
  -H "Authorization: Bearer YOUR_API_KEY"

const res = await fetch(
  'https://api.vatnode.dev/v1/vat/PL7342867148',
  { headers: { Authorization: `Bearer ${process.env.VATNODE_API_KEY}` } }
)
const data = await res.json()
console.log(data.valid, data.companyName, data.consultationNumber)

import os, httpx

r = httpx.get(
    "https://api.vatnode.dev/v1/vat/PL7342867148",
    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 PolandVAT number, once you've set your VAT as requester in dashboard Account details, looks like this:

{
  "valid": true,
  "vatId": "PL7342867148",
  "countryCode": "PL",
  "countryName": "Poland",
  "companyName": "CD Projekt SA",
  "consultationNumber": "WAPIAAAAXk7ZpY3o",
  "source": "VIES",
  "countryVat": {
    "currency": "PLN",
    "standardRate": 23,
    "reducedRates": [5,8],
    "superReducedRate": 8,
    "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.

Poland VAT Rates

vatnode returns the current Polish VAT rates inline with every successful response. Today’s rates (standard 23%, reduced 5%, 8%, super-reduced 8%) are sourced from the European Commission TEDB feed, checked daily and updated on any change.

VIES vs National Fallback for Poland

VIES is the primary data source for validation in Poland — it is the authoritative EU register and the only source that produces a consultation number. When VIES returns a transient error (timeout, MS_UNAVAILABLE, SERVICE_UNAVAILABLE), vatnode automatically queries the Polish national company registry as a fallback so your checkout or invoicing pipeline keeps working.

The response includes a source field that tells you which system answered — VIES for the EU register, or the Polish national-registry source code when the fallback ran.

Poland VAT API – FAQ

VAT APIs for Other EU Countries

• Portugal VAT API — validate IVA numbers
• Romania VAT number validation API
• Slovakia VAT API — validate DPH numbers
• Germany VAT number validation API

See Also

• vatnode Quickstart – API key in 60 seconds
• VAT validation reference – endpoint, parameters, error codes
• Poland VAT number format, rates, and verified examples
• Validate Poland VAT numbers from AI agents (Claude, Cursor) via MCP

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