NIF Generator - Create valid Tax ID Numbers for testing

This NIF generator automatically creates valid Tax Identification Numbers. Ideal for developers and testers who need valid Spanish NIFs for their projects. All generated NIFs comply with Tax Agency regulations.

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NEW! Now you can generate NIFs from your application using our API. View API documentation →

Our online NIF generator creates valid Tax Identification Numbers for testing. Perfect for developers who need NIFs for testing tax and accounting applications.

Integrate the NIF generator into your application

Generate NIFs programmatically using our REST API:

PHP


// Generate NIF using the API
$response = file_get_contents('https://letradni.info/api/generate.php?type=generador-nif');
$nif = json_decode($response)->result;

Python


import requests

# Generate NIF using the API
response = requests.get('https://letradni.info/api/generate.php?type=generador-nif')
nif = response.json()['result']

NIF Generator Features

  • ✓ Generates valid NIFs for individuals
  • ✓ REST API available for integration
  • ✓ Up to 10 daily generations per IP
  • ✓ Compatible with the Tax Agency
  • ✓ Automatic control digit validation

Need help? Write to us at Write to us at info@letradni.info

Types of NIF we generate

  • NIF for Spanish individuals: DNI (8 numbers + letter)
  • NIF for foreigners: NIE (X/Y/Z + 7 numbers + letter)

Generator Characteristics

  • Instant generation of valid NIFs
  • Automatic verification using official algorithm
  • Format compatible with the Tax Agency
  • No storage of generated data

Main Uses

  • Development of tax management software
  • Testing accounting applications
  • Electronic invoicing tests
  • Examples of tax documentation
  • Test databases

NIF Verification

To validate a NIF you must: NIF validator to check if a number is valid according to current regulations.

Related Tools

What is a NIF?

The Tax Identification Number (NIF) is the code that identifies individuals and legal entities in Spain for tax and fiscal purposes. For more information, check our complete guide about NIF.

Differences between NIF and DNI

For Spanish citizens:

  • The DNI is the identity document
  • The NIF is the tax identifier
  • Both share the same number and letter

Legal Notice: The generated NIFs are technically valid but fictitious. This generator is designed exclusively for testing and development. It should not be used for tax evasion or other fraudulent purposes.