Free Tax ID Calculator

Learn how tax IDs are calculated. Italian Codice Fiscale algorithm included. 100% in your browser.

Last Name

First Name

Birth Date

Gender

Municipality Code (4 chars, e.g. F205)

How the Italian Codice Fiscale works

3 letters from surname (consonants first, then vowels, padded with X)
3 letters from name (if 4+ consonants: 1st, 3rd, 4th; else consonants+vowels)
2 digits year + 1 letter month (A-T) + 2 digits day (females +40)
4-character municipality code (cadastral code)
1 check character calculated from the first 15 characters

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