VATport is a VAT verification and audit-proof platform for finance and tax teams, tax compliance companies, law firms, cross-border businesses, and accountants. It allows batch validation of VAT numbers, company name search, and generates audit-ready PDF and Excel documentation.

Why are VATport certificates legally valid?

VATport certificates are generated by querying official government APIs in real time — the EU VIES system, HMRC (UK), the Norwegian Brønnøysund Register, and the Swiss UID Register. The raw API response is embedded directly in the PDF. Each certificate issued through EU VIES includes a unique consultation number generated by the EU tax authority at the moment of validation — the same reference your national tax authority can look up on their side.

Why do I need VATport?

When you invoice a business customer outside your country VAT-free (reverse charge), you must verify and document that your customer was a registered taxable business at the time of the invoice. Without a timestamped certificate, a tax authority can disallow the VAT exemption retroactively — meaning you owe the VAT out of your own pocket plus interest and penalties. VATport generates a dated PDF certificate every time you validate a VAT number, building an audit trail automatically.

Which countries are supported?

VATport supports all 27 EU member states plus Northern Ireland (XI) via EU VIES, United Kingdom (GB) via HMRC API, Norway (NO) via Brønnøysund Register, and Switzerland (CH) via Swiss UID Register.

Estonia VAT Numbers | KMKR Search & Validation

Requester VAT number (optional)

Without a requester VAT number the certificate will not include the official VIES/HMRC unique consultation number required as legal evidence before tax authorities.

VAT validation record

Generated: Thu, 02 Apr 2026 00:58:09 GMT

VAT Number:EL094019245

Status:VALID

Company:Anonymous SA
[ trade name ]

Address:[ Registered Office Address ]
[ City, Postal Code ]

Unique consult.:WAPIAAAAZ1LsoMJz

Date (UTC):02 Apr 2026, 00:58 UTC

Requested by:[ Your VAT Number ]

Request

URL: https://ec.europa.eu/taxation_customs/vies/rest-api/ms/EL/vat/094019245?requesterMemberStateCode=XX&requesterNumber=[YourVAT]

VIES XML response

"isValid": true,
"requestDate": "2026-04-02T00:58:03.632Z",
"userError": "VALID",
"name": "Anonymous SA",
"address": "[ Registered Address ]",
"requestIdentifier": "WAPIAAAAZ1LsoMJz"

Export structured Excel for bulk analysis & reporting

WAPIAAAAZ1LsoGbyX9mR2

VAT Number

Status

Country

Company Name

Address

Unique Consultation No.

Timestamp

EE100594102

✓ Valid

Anonymous OÜ

Tallinn, EE

WAPIAAAAZ1LsoGbyX9mR2

02/04/2026 00:58

EL094019245

✓ Valid

Anonymous SA

Athens, EL

WAPIAAAAZ1LsoMJzK4pT8

02/04/2026 00:58

HR79147056526

✓ Valid

Anonymous d.o.o.

Sesvete, HR

WAPIAAAAZ1LsoQ9UH7nW5

02/04/2026 00:58

IE6388047V

✓ Valid

Anonymous Ltd

Dublin 4, IE

WAPIAAAAZ1LsoWWsF2kQ6

02/04/2026 00:58

Frequently Asked Questions — Estonia VAT (FAQ)

An Estonian VAT number, known as KMKR number (käibemaksukohustuslase number), is the identifier assigned by the Estonian Tax and Customs Board (EMTA) to businesses registered for VAT in Estonia. It always starts with the prefix EE followed by 9 digits (e.g. EE101335276). The KMKR number is used for all EU cross-border VAT transactions and is validated through the EU VIES system.

These are two different identifiers. The registry code (äriregistri kood) is the company's registration number in the Estonian Business Register — it identifies the legal entity. The KMKR number is the VAT registration number issued separately by the Estonian Tax and Customs Board when a company registers for VAT. A company must have a registry code but only gets a KMKR number if it registers for VAT. Importantly, the KMKR number is not derived from the registry code — they are independent numbers.

You can validate any Estonian VAT number (KMKR) directly on VATport. Enter the number in the Validator — VATport checks it against the EU VIES system in real time and generates a timestamped, audit-ready PDF certificate with the official VIES consultation number. For company details (name, address, legal form, registration status), VATport also cross-references the official Estonia e-Business Register (ARR) open data.

The Estonian e-Business Register (ARR) uses three status codes: R (Registered) — the company is active and in good standing. L (Liquidation) — the company is undergoing voluntary or compulsory liquidation. N (Bankrupt) — the company has been declared bankrupt. These statuses are sourced from the official ARR open data and are shown on each Estonian company's VAT page on VATport.

The official Estonian e-Business Register is available at ariregister.rik.ee. It is maintained by the Centre of Registers and Information Systems (RIK) under the Estonian Ministry of Justice. VATport imports its open data directly from the ARR bulk dataset, updated periodically.

Yes. Enter the Estonian VAT number (KMKR) in the VATport Validator. If the number is valid in VIES, VATport generates a PDF certificate with the official EU consultation number — legally defensible proof of VAT registration at the time of the transaction. The certificate includes the full VIES API response and is widely accepted by tax authorities across the EU.

Estonia VAT Number Search & Validation — KMKR and VIES Lookup