How Credit Score Works and How to Increase Your Score in 2026

The credit score is a number between 0 and 1000 that summarizes your financial history in a single indicator. Banks, finance companies, card operators, real estate agencies and even telecommunications companies consult this number to decide whether they will grant you credit — and under what conditions.

A high score means easier access to financing with lower interest rates. A low score means credit rejection or approval with very high rates. Understanding how this number is calculated and what you can do to improve it is one of the most practical financial skills out there.

Use our Credit Score Calculator to simulate your score and receive personalized guidance.

What is the Credit Score?

The credit score is calculated by credit bureaus — companies specialized in collecting and analyzing financial data from individuals. In Brazil, the main ones are:

Each bureau has its own calculation model, so the score may vary between them. The most consulted by banks in Brazil is Serasa Score.

Credit Score Leaderboard

How the Score is Calculated: The Factors and Their Weights

The bureaus do not disclose the exact formulas, but the variables and their relative impacts are known:

1. Payment History (weight: ~35%)

The most important factor. Each bill, card bill, loan installment or utility bill paid on time contributes positively. Delays — even 1 day — reduce the score. Debts outstanding for more than 90 days have a severe impact.

2. Negative Debts and Register of Defaulters (weight: ~30%)

Having a CPF registered with Serasa, SPC or SCPC drastically reduces your score. The good news: after paying off the debt, the name must be removed from the defaulter register within 5 business days, and the score begins to recover.

3. Credit History Length (weight: ~15%)

The longer the positive financial history of your CPF, the higher the score tends to be. People who have never formally had credit tend to have low scores, even without debt.

4. Positive Registration (weight: ~10%)

The Positive Registry (regulated by Law 12,414/2011) records your positive payment history — not just debts. When you activate Positive Registration, the bureau sees that you pay your bills on time, not just that you don't owe them. This can significantly increase the score of people who pay everything on time but have a short track record.

5. CPF queries (weight: ~10%)

Every time you apply for credit (card, loan, financing), the company checks your CPF at the bureau. Many short-term consultations (less than 6 months) signal potential financial risk and may temporarily reduce the score.

What Increases Credit Score

1. Always Pay on Time — No Exceptions

The most effective and lasting way to build a high score is the habit of paying everything before the due date. Set up alerts on your cell phone or automatic debit for card invoices, bills and installments.

2. Pay Off All Outstanding Debts

Each debt paid starts the score recovery process. Negotiations can be carried out through Serasa Limpa Nome, on the bureau's official website or directly with the creditor. Prioritize older debts with larger amounts.

3. Activate Positive Registration

Access the Serasa or Boa Vista website and activate the Positive Registration. It's free and can increase your score by dozens of points by showing that you pay your bills on time — even if you don't have much of a formal credit history yet.

4. Keep an active and active bank account

Having a current account with regular transactions (salary, bill payments) signals financial stability. Digital banks such as Nubank, Inter and C6 Bank are also considered by the bureaus.

5. Use Credit Consciously

Keeping your card limit usage below 30% is good practice. Constantly using 90-100% of the limit, even paying on time, can signal credit dependency and negatively affect your score.

6. Avoid Applying for Too Much Credit in the Short Term

Each credit inquiry leaves a record in your history. Concentrating many requests in a few months temporarily reduces the score. If you are planning a major mortgage, avoid applying for new cards or loans in the previous 6 months.

7. Update Your Registration Data

Outdated address and contact information in bureau records can affect the score. Update on the Serasa and Boa Vista website for free.

8. Maintain Relationships with Formal Companies

Having an electricity, telephone and internet bill on your CPF — paid on time — is a sign of stability for the bureaus. This contributes positively to the score over time.

9. Length of Relationship with Financial Institutions

Don't close old bank accounts. The length of time you have had a relationship with a bank or financial institution counts positively. An account with 10 years of history is more valuable than a new one.

10. Credit Diversification

Having different types of active and well-paid credit (card, financing, personal credit) — without compromising the budget — demonstrates the ability to manage multiple financial obligations.

What Brings Down Your Credit Score

How Long Does It Take for the Score to Go Up?

There is no magic — the score reflects a history of financial behavior. See a realistic schedule:

How to Check Your Credit Score for Free

You have the right to check your score for free at the main bureaus:

1. Serasa: Access serasa.com.br → "Consult your CPF" → Login with CPF/password or Gov.br
2. Boa Vista (SPC): Visit consumer.boavistaservicos.com.br → Register with CPF
3. Quod: Visit quod.com.br → Login with CPF

Free consultations do not affect the score. Only inquiries made by companies (when applying for credit) are recorded as "external consultation".

Credit Score and Positive Registration: Understanding Better

The Positive Registration was regulated by Law 12,414/2011 and improved by Law 13,709/2018 (LGPD). In 2019, the federal government authorized the automatic inclusion of all CPFs in the Positive Registry — that is, you are already included, unless you have requested exclusion.

The Positive Registry records:

• Payments of financing and loans
• Card bill payments
• Payments of utility bills (water, electricity, gas, telephone)
• History of installment purchases

For those who pay everything on time, the Positive Registry is a benefit — it adds positive evidence to your history, which would otherwise only record negative occurrences.

Common Credit Score Mistakes

1. "I paid the debt, my score will go up immediately": No. After paying off the debt, the creditor company has up to 5 business days to request removal from the negative registry. After removal, the score goes up gradually — not all at once.

2. "Consulting my own score reduces the score": False. Consultations that you make yourself at Serasa or Boa Vista do not affect the score. Only inquiries made by companies when evaluating a credit application are recorded.

3. "Earning more money increases your score": The score is based on payment behavior, not income level. A person with a low salary but who pays everything on time may have a higher score than someone with a high income who delays payments.

4. "Clearing your name has an immediate effect on your credit": Clearing your name is the first step, but the score gradually rises as the positive history is built. The score of those who had debts does not reach 900 points in one month.

5. "Score above 500 is sufficient for any credit": Each bank and product has its own criteria. For real estate financing (FGTS/Caixa), a score above 600-700 is often required. For premium credit card, above 800.

Frequently Asked Questions (FAQ)

1. What score is needed to finance an apartment through Caixa Econômica? Caixa Econômica Federal uses its own credit analysis systems that go beyond the bureau score, but in general, scores above 600 points significantly increase the chances of approval. For the best rates in the Minha Casa Minha Vida program, a score above 700 is recommended. The proven income history and relationship with the bank also weigh heavily.

2. My spouse has a low score. Does this affect my credit approval? Yes, if you apply for credit jointly (both names on the contract). In real estate financing with income composition, the bank evaluates the score of both parties. If the spouse has a low or negative score, this may prevent approval or worsen conditions. In individual credits, only the applicant's score is considered.

3. Can I have a high score even with low income? Yes. The score measures payment behavior, not income. People with a minimum wage who pay all their bills on time can have an excellent score. Income is assessed separately by the bank in the payment capacity analysis — but this is different from the score itself.

4. How long is a delay recorded in the score? Delays and negative debts remain on the default register for up to 5 years after the debt is due, even if they are paid. However, the Consumer Protection Code prohibits maintaining the negative status for more than 5 years — after this period, the information is automatically removed, even if the debt is not paid.

5. Is it possible to pay to increase the score? There is no legitimate service that increases the score directly upon payment. Scammers charge to “clear their name” or “increase their score” fraudulently. The score only increases due to real financial behavior. Be wary of any service that promises to quickly increase your score for a fee.

6. Is the score the same in all banks? No. Each bank uses different credit analysis models — some use the Serasa score, others the SPC score, others have proprietary models that consider additional variables such as relationship with the bank, income and product history. The bureau score is one of the inputs, not the only factor.

7. Digital bank (Nubank, Inter) does it count to increase the score? Yes. Accounts in digital banks and the use of credit cards from these banks (paid on time) contribute positively to the score, in the same way as traditional banks. Nubank, in particular, reports payment history to Serasa.

8. How does Pix affect your credit score? Pix transactions themselves do not directly affect the score. Pix is ​​just a payment method, not a credit product. However, using Pix to pay bills and bills on time indirectly contributes to the payment history, which Cadastro Positivo can capture.

Simulate Your Score Situation Now

By understanding which factors affect your score, you can draw up a concrete improvement plan.

Access our Credit Score Calculator — enter your current financial situation and receive an estimate of your score with personalized recommendations to improve your credit history.

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