Frequently Asked Questions (FAQ) about Italian Tax Code

The Italian Tax Code (Codice Fiscale) consists of 16 alphanumeric characters: 3 letters from surname, 3 from first name, 2 digits for birth year, 1 letter for month, 2 digits for day (+40 for females), 4 characters for municipality cadastral code, and 1 control character (CIN).

Yes, CodiceFiscale.expert is completely free with no usage limits and no registration required. You can calculate as many tax codes as you need.

Our calculator uses the official algorithm from the Italian Revenue Agency to generate an algorithmically correct code. For official issuance with legal validity, you must contact the Revenue Agency (Agenzia delle Entrate).

For women, 40 is added to the birth day. So if a woman was born on the 15th, the Tax Code shows 55. This allows distinguishing men and women born on the same day.

Each month is represented by a specific letter: A=January, B=February, C=March, D=April, E=May, H=June, L=July, M=August, P=September, R=October, S=November, T=December.

The first 3 consonants of the surname are taken. If not enough, vowels are added. If the surname has fewer than 3 letters, X is added. Example: Smith → SMT, Fo → FOX.

If the first name has 4 or more consonants, the 1st, 3rd and 4th consonants are taken. Example: Giovanni → GNN. If it has 3 or fewer consonants, they are used in order.

No, the cadastral code of the birth municipality is essential. Our database includes all 7904 Italian municipalities with their cadastral codes.

For those born abroad, instead of the municipal code, the foreign country code is used, which starts with Z followed by 3 digits. Example: Z404 for Germany, Z352 for Romania.

Yes, any foreign citizen who has tax, work or health relations in Italy can and must obtain an Italian Tax Code.

Foreigners must go to the Revenue Agency with: valid passport or ID, residence permit (if non-EU), and fill out form AA4/8.

Yes, European Union citizens can request the Tax Code with just their ID document, without needing a residence permit.

Italian citizens registered with AIRE (Registry of Italians Abroad) keep their original Italian Tax Code. The code doesn't change based on residence.

Omocodia occurs when two or more people have the same algorithmically calculated Tax Code (same surname, name, date and place of birth). The Revenue Agency resolves this by replacing some digits with letters.

The Revenue Agency progressively replaces digits with letters according to this table: 0=L, 1=M, 2=N, 3=P, 4=Q, 5=R, 6=S, 7=T, 8=U, 9=V. Starting from the last digit.

Yes, our verification tool automatically recognizes omocodic codes and validates them correctly.

It's relatively rare but possible, especially with common surnames and names in large cities. The Revenue Agency handles these cases automatically.

Use our verification tool: we check the CIN control character, format validity, data consistency, and also recognize omocodic codes.

From reverse Tax Code lookup you can extract: gender (M/F), complete birth date, and the cadastral code of birthplace (but not name and surname).

The CIN (Control Internal Number) is the last character of the Tax Code. It's calculated with an algorithm that verifies all 15 previous characters, preventing transcription errors.

Characters in odd and even positions are converted to numbers using different tables, summed and divided by 26. The remainder indicates the control letter (0=A, 1=B, ..., 25=Z).

We offer a demo PDF preview of the Health Card (Tessera Sanitaria) with your Tax Code and barcode. WARNING: This is NOT an official document and cannot be used for healthcare purposes.

The official Health Card is automatically issued by the Revenue Agency to citizens enrolled in the National Health Service (SSN).

The Health Card is valid for 6 years. Upon expiration, it's automatically renewed and mailed to your address.

You can request a duplicate online on the Revenue Agency website, through the IO app, or by visiting a Revenue Agency office.

Yes, the back of the Health Card is the EHIC (European Health Insurance Card), valid in all EU, EEA countries and Switzerland for urgent care.

NO, absolutely not. We do not save any personal data. All calculations happen directly in your browser (client-side) and no information is sent to our servers.

Yes, we use encrypted HTTPS connection, are compliant with European GDPR, and meet WCAG 2.1 AA accessibility standards.

Yes, our calculator can be used by professionals, companies and tax assistance centers to quickly verify tax codes, always respecting privacy.

We only use essential technical cookies and, with consent, anonymous analytical cookies to improve the service. You can manage preferences at any time.