1. What Is CPF?

CPF (Cadastro de Pessoa Física) is the Brazilian individual taxpayer registry identification. It consists of 11 digits: 9 base numbers plus 2 verifier digits calculated through a specific algorithm.

2. How CPF Calculation Works

The CPF calculation follows this algorithm:

First verifier digit calculation:

• Multiply each of the first 9 digits by weights from 10 to 2
• Sum all results
• Calculate remainder of division by 11
• If remainder < 2, verifier = 0; else verifier = 11 - remainder

Second verifier digit calculation:

• Multiply each of the first 9 digits by weights from 11 to 3
• Multiply the first verifier by 2
• Sum all results
• Calculate remainder of division by 11
• If remainder < 2, verifier = 0; else verifier = 11 - remainder

3. Importance of CPF

Details: The CPF is essential for virtually all financial and legal transactions in Brazil, including opening bank accounts, employment, purchasing property, and accessing government services.

4. Using the Calculator

Tips: Enter the 9 base digits of your CPF (without verifiers) to calculate the complete 11-digit CPF number with the correct verifier digits.

5. Frequently Asked Questions (FAQ)

Q1: What does CPF stand for?
A: Cadastro de Pessoa Física (Individual Taxpayer Registry).

Q2: Is CPF the same as RG?
A: No, RG (Registro Geral) is the general identity card, while CPF is the tax identification number.

Q3: Can two people have the same CPF?
A: No, each CPF is unique to one individual and cannot be transferred or reused.

Q4: What if I lose my CPF card?
A: You can request a duplicate through the Brazilian Federal Revenue website or at authorized institutions.

Q5: Do foreigners need a CPF?
A: Yes, foreigners who conduct financial transactions, work, or own property in Brazil need a CPF.