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CountryValidator

.NET library that validates VAT codes and national and tax ID numbers for 82 countries.

Inactive since 2024

What it does

A .NET library that checks social security numbers, VAT codes and tax identification numbers for individuals and companies, country by country, and returns a result with an error message. Installed from NuGet, with a data annotations package; a table lists each supported country and the number types covered. Coverage differs per country, and the README mentions no lookup in an official register.

Where it fits on the map

Not on the map: inactive.

The map places maintained projects for a company tax department or a tax authority, without a demo or paid-service flag. Everything else stays on the list with its label.

Similar projects

Of the same kind, for a shared jurisdiction or tax area. Not a ranking.

Maintain this project?

Link to this page from your README, so readers find the facts, the notes and where it fits. The badge is a small SVG served from this site.

Listed on tax-oss.com

[![Listed on tax-oss.com](https://tax-oss.com/badge.svg)](https://tax-oss.com/projects/countryvalidator/)
Next · Step 3 of 4The gapsThe activities with no open project yet, and the partly covered ones, with what to build on.