Provide validation tools for Taxpayer Identification Number

1.0.3 2021-06-15 19:54 UTC

This package is auto-updated.

Last update: 2021-10-15 20:35:59 UTC


Latest Stable Version GitHub stars Total Downloads GitHub Workflow Status Scrutinizer code quality Type Coverage Code Coverage License

Taxpayer Identification Number (TIN) Validator


A library to validate TIN numbers for individuals. This is based on a Java library, this is why the code does not reflect best practices in php (yet).

Supported countries:

  • Austria (AT)
  • Belgium (BE)
  • Bulgaria (BG)
  • Croatia (HR)
  • Cyprus (CY)
  • Czech Republic (CZ)
  • Denmark (DK)
  • Estonia (EE)
  • Finland (FI)
  • France (FR)
  • Germany (DE)
  • Greece (GR) - only size
  • Hungary (HU)
  • Ireland (IE)
  • Italy (IT)
  • Latvia (LV) - no check digit
  • Lithuania (LT)
  • Luxembourg (LU)
  • Malta (MT) - no check digit
  • Netherlands (NL)
  • Poland (PL)
  • Portugal (PT)
  • Romania (RO) - no check digit
  • Slovakia (SK) - only structure
  • Slovenia (SI)
  • Spain (ES)
  • Sweden (SE)
  • United Kingdom (UK) - only structure

If your country is not there, feel free to open an issue with your country code, and a link to the specification. Ideally, you can provide a pull request with the algorithm and the tests.


  • PHP >= 7.1

Usage & API

To simply check the validity of a TIN number:


include __DIR__ . '/vendor/autoload.php';

use loophp\Tin\TIN;

$bool = TIN::fromSlug('be71102512345')->isValid();

If you want to get the reason why a number is invalid, you can use


include __DIR__ . '/vendor/autoload.php';

use loophp\Tin\TIN;
use loophp\Tin\Exception\TINException;

try {
} catch (TINException $e) {
    // do something with the exception.


composer require loophp/tin

Code quality, tests and benchmarks

Every time changes are introduced into the library, Github run the tests and the benchmarks.

The library has tests written with PHPSpec. Feel free to check them out in the spec directory. Run composer phpspec to trigger the tests.

Before each commit some inspections are executed with GrumPHP, run ./vendor/bin/grumphp run to check manually.

PHPInfection is used to ensure that your code is properly tested, run composer infection to test your code.




Feel free to contribute to this library by sending Github pull requests. I'm quite reactive :-)