Built and hosted in the EU

Validate VAT IDs. Keep the proof.

Real-time VAT ID validation against VIES and six more official registries — with consultation numbers, raw registry responses and tamper-evident exports archived for the day your tax office asks.

Start Free Trial Explore VAT Checker

GDPR-compliant
DPA included
ISO 27001 infrastructure

DE812345678 Valid VIES · 0.8 s

Company name

Acme Software GmbH

Match

Street

Friedrichstraße 60

Match

Postal code · city

10117 Berlin

Match

Consultation number · archived

WAPIAAAAY2QK8PZR

Raw registry response · Data home: EU

Re-validated quarterly

Next run Oct 1 · evidence updated automatically

VAT ID became invalid

FR12345678901

Caught by the quarterly re-check — before the next invoice.

taxvalidation.validation.invalid

How it works

Checking is easy. Proving it is the point.

A zero-rated B2B invoice is only safe if the VAT ID was valid — and you can show it. From the first check to the audit years later, everything lives in one place.

1 Check

One API call validates any VAT ID against the official registry — VIES, BZSt, HMRC and more. In real time, at signup, at checkout, or in bulk.

2 Match

Qualified checks compare the company name and address on your invoice against the register — field by field, not just “the number exists”.

3 Prove

Every check is archived with its consultation number and the registry's raw response — exported as a tamper-evident bundle when the auditor asks.

4 Re-check

Schedules re-validate customers and suppliers monthly, quarterly or yearly — and a webhook tells you the moment an ID stops being valid.

Live demo

See a real check — right here.

No signup, no API key. The widget calls the same validation engine your backend would — against the official registry, live.

Real answers, not mock data — outcome, registered company name and address come straight from the official register.
Proof from the first check — qualified EU checks get an official VIES consultation number — with an account, it's archived as evidence automatically.
What your backend gets — toggle the JSON view to see the exact response shape of the REST API — one call, done.

Read the API reference →

Try it live!

This runs a real check against VIES — the same call your backend would make. Try an example or paste any EU VAT ID.

Examples:

GET · no API key needed for the demo

Official sources only

Answers come from the register itself — and are archived verbatim.

European Union VIES · All 27 member states + Northern Ireland

Germany BZSt · Qualified confirmation (eVatR)

United Kingdom HMRC · UK VAT numbers

Switzerland UID register · CHE numbers via Zefix

Norway Brønnøysund · Organization numbers

Australia ABR · ABN incl. GST status

New Zealand NZBN · NZBN register

Everything else Stored & resolved via manual review

Registries

More than VIES.

Your customers aren't all in the EU — and “the number exists” isn't the same as “this is really them”. Seven official registries, one API.

Scheme detection built in — send a country code and an ID — formatting is normalized, the right registry is chosen, prefixes are fixed automatically.
Qualified confirmations — checks against name and address return per-field match verdicts. German requesters automatically get the BZSt qualified confirmation (eVatR).
Beyond the EU — UK VAT via HMRC, Swiss UID, Norwegian organization numbers, Australian ABN and New Zealand NZBN — same call, same evidence.
A path for everything else — IDs without a connected registry can be stored and verified via manual review — one system for your whole customer base.

Explore registries & qualified checks →

Built for a flaky VIES

VIES is down again. Your checks aren't.

Anyone who has used the official VIES service knows the message: “unavailable, please try again later”. It goes down regularly for database backups — your compliance process shouldn't go down with it.

Automatic retries with backoff — failed checks retry up to 5 times over 4 hours — registry maintenance resolves itself, without a single cron job on your side.
Accepted even mid-outage — send checks while VIES is down; they queue, complete when the registry recovers, and a webhook delivers the result.
Manual review as a safety net — if a registry stays down, the check lands in a review queue for a human verdict — nothing is silently dropped.
Never billed twice — a check is metered once, when you create it — retries and manual review don't consume extra validations.

Explore reliability & retries →

Evidence & exports

The audit is years away. Your evidence isn't.

VIES itself tells you to “keep track of your validation in case of tax control” — and then stores nothing. We archive everything, from the first check.

Consultation numbers, kept — the official VIES reference for every qualified EU check — archived with the result, not scribbled in a spreadsheet.
The registry's own words — the exact raw response — XML or JSON — is stored encrypted and downloadable. Not our interpretation: the source.
Tamper-evident bundles — per-check and per-ID reports as PDF + JSON with a SHA-256 manifest — verifiable years later.
Bulk exports for your systems — all results as CSV, JSON or Excel — filtered by date, outcome or registry, ready for your ERP or tax advisor.

Explore evidence & exports →

Scheduled re-validation

Compliance isn't a one-time check.

A VAT ID that was valid at signup can be invalid by the next invoice — companies close, deregister, restructure. Schedules keep your records current without anyone remembering to.

Monthly, quarterly or yearly — attach a schedule to any stored ID — created with the first check or added later, run on time every time.
Hear only about problems — subscribe to the validation.invalid webhook and you're notified the moment a customer or supplier stops being valid.
Run now, when it matters — big invoice going out? Trigger an immediate re-check without touching the schedule.
History per identifier — every ID keeps its full validation history — one place to see when it was valid, and when it stopped.

Explore scheduled re-validation →

European by design

Tax data is sensitive. Treat it that way.

VAT IDs, company records, audit evidence — data you don't want routed through a US API broker. TrustComponent is a European company: your data stays in the EU, under European law.

Your data lives in the EU — validation data and evidence are stored and processed in the EU on ISO 27001-certified infrastructure — checks go to the official registries, nothing else leaves.
DPA signed online — a GDPR Art. 28 data processing agreement, generated and signed in minutes — no back-and-forth with sales.
Audit logs with real detail — who checked what, who resolved which review, with before → after values — exportable for your compliance tooling.
SSO, MFA & roles — OIDC single sign-on, enforced multi-factor authentication and viewer/member/admin roles — your accountant can read without touching.

Runs on the TrustComponent platform

EU-hosted

One account, one foundation — shared with every TrustComponent product.

SSO & MFA Team roles & seats Audit logs & exports Online DPA EU-hosted platform One invoice, e-invoicing

About the platform

Comparison

For businesses that must prove it — not just look it up.

Built for SaaS companies, online shops and agencies that invoice across borders and answer to auditors — not a bare lookup API, not an enterprise tax suite.

	TrustComponent VAT Checker	Manual VIES lookups	Basic validation APIs
Real-time VAT ID validation	✓	✓	✓
API, batch & webhook automation	✓	-	✓
Consultation numbers & raw responses archived	✓	~	-
Automatic retries when VIES is down	✓	-	-
UK, Switzerland, Norway, Australia & NZ registries	✓	-	~
Scheduled re-validation of stored IDs	✓	-	-
Tamper-evident evidence exports	✓	-	-
EU company, EU hosting & online DPA	✓	~	-

Getting started

Your first check in minutes.

One REST call to validate, one webhook to listen — or start entirely in the dashboard, no code at all. The evidence takes care of itself.

Documentation

Guides for checks, schedules, manual review, evidence and exports.

Read the docs

API reference

REST endpoints for single checks, batches, schedules and results.

Open the reference

Every VAT ID checked. Every check proven.

Validate, re-check & export the evidence
GDPR-compliant & EU-hosted
Integrated in minutes

Start Free Trial View pricing