Tax Number Generator
Generate and validate format-valid tax IDs for 14 countries — for testing only.
Privacy Notice: This tool runs entirely in your browser. Your data is never sent to any server or stored anywhere.
Generator Configuration
Testing Only: Generated numbers are mathematically valid but randomized (Test Data).
Generated Tax Number
These numbers are mathematically valid but randomized (Test Data).
About this tool
The Tax Number Generator produces format-valid tax identification numbers for 14 countries — Turkish VKN, US EIN, Australian TFN, UK NINO, German Steuernummer, Italian Partita IVA, French SIREN, Saudi VAT, UAE TRN, Egyptian TIN, Qatar Tax ID, Singapore UEN, and Jordanian and Kuwaiti TINs.
Each number follows the country's official structure and check-digit algorithm, so it passes real-world form validation — while remaining synthetic test data that is registered to no business or person. Validator mode checks numbers you already have and reports which rule fails.
The tool is fully client-side: nothing you generate or paste is transmitted, logged or stored.
How to use
Pick a country and tax ID type
Choose one of the 14 supported countries — for example Turkish VKN, US EIN, Singapore UEN or Saudi VAT.
Generate or validate
Generate a fresh, format-valid test number, or paste an existing one to validate its structure and check digits.
Copy into your tests
Copy the number and use it in fixtures, invoices in staging environments, or QA scenarios.
Supported countries & tax ID types
| Country | Tax ID type |
|---|---|
| Turkey (TR) | Tax Identification Number (VKN) |
| United States (US) | Employer Identification Number (EIN) |
| Australia (AU) | Tax File Number (TFN) |
| United Kingdom (UK) | National Insurance Number (NINO) |
| Germany (DE) | Steuernummer |
| Italy (IT) | Partita IVA (VAT Number) |
| France (FR) | SIREN (Company ID) |
| Saudi Arabia (SA) | VAT Number |
| United Arab Emirates (AE) | Tax Registration Number (TRN) |
| Egypt (EG) | Tax Identification Number (TIN) |
| Qatar (QA) | Qatar Tax ID |
| Jordan (JO) | Tax Identification Number (TIN) |
| Kuwait (KW) | Tax Identification Number (TIN) |
| Singapore (SG) | Unique Entity Number (UEN) |
Frequently asked questions
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