Tools

Free VAT & Customs Tools for European Businesses

Access a comprehensive suite of free VAT and customs compliance tools built on the same enterprise engine as VIESAC: validate EU VAT numbers via VIES, verify UK VAT, Switzerland UID, Norway MVA, and Serbia PIB registrations, check EU & UK EORI numbers for customs clearance, verify PDF invoices with AI, calculate net and gross VAT amounts, check cross-border reverse charge eligibility, and look up standard and reduced VAT rates across Europe.

Validate VAT

EU VAT Number Validator (VIES)

Validate EU VAT numbers against the official VIES system before you issue invoices or approve 0% VAT for intra‑EU B2B supplies. Get a quick VALID / INVALID status for VAT IDs in all EU member states.

EU VAT Validator

Ideal for first‑line VAT number checks before onboarding customers or applying VAT exemption.

Check UK VAT number

UK VAT Number Checker — Validate a GB VAT Registration

Check whether a UK VAT registration number is valid through the HMRC VAT API. Enter a 9- or 12-digit number with or without the GB or UK prefix, for example GB123456789.

Check UK VAT number

This quick UK VAT check is an initial validation only. For audit-ready evidence, create a VIESAC audit with the stored HMRC response and certificate.

Validate UID

Switzerland UID / MWST Number Validator

Check whether a Swiss business identification number (UID) is registered for VAT in Switzerland. Swiss VAT numbers use the CHE format with nine digits and a language suffix: MWST (German), TVA (French) or IVA (Italian), for example CHE-123.456.789 MWST.

Validate UID

This quick Swiss UID check is for initial validation only and is not legal proof for tax audits. For audit-ready evidence, use VIESAC certificates with stored UID Register SOAP/XML responses and 10+ year retention.

Validate MVA

Norway MVA Number Validator

Check a Norwegian organisation number (org.nr) in MVA-registeret. Validate NO organisation numbers with MVA suffix against Brønnøysundregistrene, Enhetsregisteret and the Norwegian MVA Register, then create audit-ready evidence in VIESAC.

Validate MVA

This quick MVA check is for initial validation only and is not legal proof for tax audits. For audit-ready evidence, use VIESAC certificates with stored Brønnøysundregistrene technical evidence and 10+ year retention.

Validate VKN

Turkey VKN / VAT Number Validator (GİB e-Fatura)

Free Turkish VKN and VAT (KDV) number validator. Check 10-digit Vergi Kimlik Numarası against official Gelir İdaresi Başkanlığı (GİB) e-Fatura register and Modulo 10/9 algorithm.

Validate VKN

This quick VKN check is for initial validation only and is not legal proof for tax audits. For audit-ready evidence, use VIESAC certificates with stored official GİB technical responses and 10+ year retention.

Validate PIB

Serbia PIB / VAT Number Validator (PURS)

Free Serbian PIB and VAT (PDV) number validator. Check Serbian 9-digit Poreski Identifikacioni Broj against official Poreska uprava (PURS) register data and ISO 7064 MOD 11,10 algorithm.

Validate PIB

This quick PIB check is for initial validation only and is not legal proof for tax audits. For audit-ready evidence, use VIESAC certificates with stored official PURS technical responses and 10+ year retention.

Validate PDV

Bosnia and Herzegovina PDV Validator (UINO)

Free Bosnia and Herzegovina PDV validator. Check a 12-digit UINO VAT number (JIB / VAT broj) against the official taxpayer database of the Indirect Taxation Authority (Uprava za indirektno oporezivanje).

Validate PDV

This quick check is not a stored certificate. Create a free VIESAC account to keep the UINO response and download the PDF.

Validate NIPT

Albania NIPT Validator (QKB)

Free Albania NIPT validator. Check a QKB NIPT (NUIS, letter + 8 digits + letter) against the public National Business Center (Qendra Kombëtare e Biznesit) subject search.

Validate NIPT

This quick check is not a stored certificate. Create a free VIESAC account to keep the QKB response, archived extract PDFs and download the audit PDF.

Validate EDB

North Macedonia EDB Validator (UJP)

Check a North Macedonian unique tax number (EDB, MK and 13 digits) in the public UJP taxpayer search. Confirms the taxpayer record, not a separate DDV status.

Validate EDB

This quick check confirms only that the EDB exists in the public UJP search. It is not a DDV registration status and it is not legal proof for a tax audit.

Validate ABN

Australia ABN & GST Validator (ABR Lookup)

Free Australian ABN and GST validator. Verify an 11-digit Australian Business Number against the official Australian Business Register (ABR / ATO) and the Modulus 89 checksum online.

Validate ABN

This quick ABN check is an initial lookup. For a stored ABR technical response and a PDF certificate, create a VIESAC audit.

Validate VSK

Iceland VSK & Kennitala Validator (Skatturinn)

Free Iceland VSK and kennitala validator. Check a short VSK (e.g. IS23148) or a 10-digit kennitala against Skatturinn Fyrirtækjaskrá; the stored VAT number is the VSK.

Validate VSK

This quick check is an initial lookup. Audits store the VSK as the VAT number, the kennitala as company ID, and a PDF certificate from Skatturinn evidence.

Validate EORI

EORI Number Validator

Validate EU and UK EORI numbers online against official customs registers. Check whether an Economic Operators Registration and Identification number is valid, active, and registered for customs.

Validate EORI

This tool queries official customs validation endpoints (EU Commission EOS and UK HMRC) in real time. For long-term audit trail storage and certified evidence for tax or customs audits, use VIESAC.

Validate UK EORI

UK EORI Number Validator (HMRC)

Free UK EORI number validator. Check Great Britain (GB) and Northern Ireland (XI) EORI registrations directly with HMRC customs. Validate trader status, customs clearance, and UK import/export compliance.

Validate UK EORI

This tool queries official UK HM Revenue & Customs (HMRC) validation endpoints in real time. For long-term audit trail storage and certified evidence for tax or customs audits, use VIESAC.

Invoice Checker BETA

Free EU VAT Invoice Checker

Free AI-powered EU VAT Invoice Checker. Upload your PDF invoice to instantly extract and validate VAT numbers for both supplier and customer, understand VAT amounts, and check compliance rules.

Select PDF Document

Upload a PDF invoice to instantly extract and validate the Issuer VAT and Payer VAT. Our AI verifies the tax geometry and ensures the correct VAT compliance rules are applied for domestic and cross-border transactions.

Check amounts

EU VAT Calculator — Net, VAT & Gross

Calculate VAT amount and gross price from a net price for any EU country using standard VAT rates and local VAT abbreviations (MwSt, TVA, IVA, BTW). Perfect for quick invoice and quote checks.

VAT Calculator

Use as a quick EU VAT calculator when reviewing invoices, pricing scenarios or reverse charge cases.

Reverse charge

Reverse Charge Checker — 0% VAT

See if the EU reverse charge mechanism is likely to apply for a cross‑border B2B transaction. Compare seller and buyer countries and transaction type to understand when 0% VAT on the invoice is appropriate.

Reverse Charge Checker

Helpful when deciding if reverse charge applies and which VAT rate should appear on the invoice.

VAT rates

VAT Rate Finder — Standard & Reduced Rates

Quickly see standard and reduced VAT rates for EU countries. Reference typical VAT percentages when checking invoices or configuring tax rules in your invoicing, ERP or ecommerce systems.

VAT Rate Finder

Use as a quick VAT rate reference for standard and reduced rates maintained in your VIESAC account.

How these free VAT and customs tools fit into your compliance workflow

Start with the EU VAT Number Validator to confirm customer and supplier VAT IDs in official EU VIES databases before issuing B2B invoices. If trading with non-EU partners, verify national registrations using the UK VAT Checker, Switzerland UID/MWST Validator, Norway MVA Validator, or Serbia PIB / VAT Validator. For customs clearance, freight forwarding, and cross-border logistics, confirm active trade status with the EORI Number Validator. Audit incoming supplier invoices instantly using the AI-assisted Invoice Checker, calculate precise country tax totals with the VAT Calculator, confirm zero-rate applicability with the Reverse Charge Checker, and review standard and reduced rates via the VAT Rate Finder.

All free tools serve as fast, accessible entry points into the VIESAC ecosystem. For automated recurring monitoring, certified PDF validation certificates, official XML evidence, and 10+ year immutable audit storage for tax and customs audits, create a free VIESAC account and connect these workflows directly with your invoicing, ERP, and logistics systems.