Romania VAT API – Validate Romania VAT Numbers in Real Time

Why a Romania-Aware VAT API

In Romania, VAT is known as Taxa pe valoarea adăugată (TVA) and the current standard rate is 21%. Every Romania VAT number starts with the prefix RO and follows a fixed structure issued by the Romanian 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 TVA input, runs the official VIES check, falls back to the Romanian national company registry when VIES is unavailable, and returns a single JSON shape with the consultation number, company data where published, and the current Romania VAT rates inline.

Romania VAT Number Format

Real Romania VAT numbers you can validate right now:

• RO9010105 — Orange Romania SA
• RO160796 — Automobile Dacia SA
• RO1590082 — OMV Petrom SA

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

Validating Romania VAT Numbers – Code Examples

All three examples validate the same Romania VAT number RO9010105. 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/RO9010105' \
  -H "Authorization: Bearer YOUR_API_KEY"

const res = await fetch(
  'https://api.vatnode.dev/v1/vat/RO9010105',
  { 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/RO9010105",
    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 RomaniaVAT number, once you've set your VAT as requester in dashboard Account details, looks like this:

{
  "valid": true,
  "vatId": "RO9010105",
  "countryCode": "RO",
  "countryName": "Romania",
  "companyName": "Orange Romania SA",
  "consultationNumber": "WAPIAAAAXk7ZpY3o",
  "source": "VIES",
  "countryVat": {
    "currency": "RON",
    "standardRate": 21,
    "reducedRates": [11],
    "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.

Romania VAT Rates

vatnode returns the current Romanian TVA rates inline with every successful response. Today’s rates (standard 21%, reduced 11%) are sourced from the European Commission TEDB feed, checked daily and updated on any change.

VIES vs National Fallback for Romania

VIES is the primary data source for validation in Romania — 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 Romanian 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 Romanian national-registry source code when the fallback ran.

Romania VAT API – FAQ

VAT APIs for Other EU Countries

• Slovakia VAT API — validate DPH numbers
• Slovenia VAT number validation API
• Spain VAT API — validate IVA numbers
• Italy VAT number validation API

See Also

• vatnode Quickstart – API key in 60 seconds
• VAT validation reference – endpoint, parameters, error codes
• Romania VAT number format, rates, and verified examples
• Validate Romania 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 Romania VAT numbers and look up rates directly in chat.