Nordic VAT Validator

About

Nordic VAT Validator helps accounting, logistics and export/import teams catch formal VAT ID errors before they become invoice, supplier onboarding or master-data problems.

Paste invoice text, a supplier column, selected webpage text or visible page text. The extension checks local structure and checksum rules for Nordic and Baltic VAT identifiers directly in Chrome.

Supported identifiers:

- Finland FI / ALV nro
- Denmark DK / CVR
- Sweden SE / Momsregistreringsnummer
- Norway NO / Organisasjonsnummer MVA
- Estonia EE / KMKR
- Latvia LV / PVN
- Lithuania LT / PVM

Features:

- local checksum validation for FI, DK, SE, NO, EE, LV and LT
- one-click selected text check
- clipboard check after explicit user action
- visible page scan after explicit user action
- batch review screen for ERP or invoice columns
- temporary page highlighting
- user-activated field mode for web forms
- CSV, JSON and plain text export
- local options for prefix strictness, bare number detection, Baltic checks and Norwegian MVA suffix handling

Privacy and security:

- no account
- no server
- no VIES call
- no external API
- no analytics
- no remote code
- no broad host permissions
- no stored VAT IDs by default

Important: this extension is a formal local checker. It does not confirm that a VAT ID exists, is active, belongs to a company, appears in VIES, or is accepted by any tax authority.