Fixed Income

Cdb X Lci: Qual o Melhor Investimento para o Seu Dinheiro?

Understand the difference between CDB and LCI to invest wisely! Find out which yields more and fits better with your financial goals.

A person choosing between CDB and LCI, fixed income investments.

We know that the world of investments can seem complex, but understanding the options is the first step towards building a solid financial future. Have you ever wondered difference between CDB and LCI and which one is ideal for your investor profile?

Today, we're going to demystify these two popular investments of fixed income. Our aim is to provide clarity and essential information so that you can make more informed and strategic decisions with your money, boosting your journey to wealth.

What is a CDB and how does it work?

We can define the CDB (Bank Deposit Certificate) as one of the most democratic securities in the Brazilian financial market.

When we invest in a CDB, we are, in practice, lending our money for a banking institution.

In exchange for this “loan”, the bank pays us back the amount with the addition of interest after a certain period.

Banks use these funds to finance their own activities, such as offering loans and financing to other customers.

There are basically three types of return on CDBs: the fixed-rate, post-fixed and hybrids.

In prefixed, We already know exactly how much we will receive at the end of the term, because the rate is fixed.

Already in post-fixed, profitability generally keeps pace with CDI, which is the main benchmark for fixed income.

The Hybrids usually offer a fixed rate plus the variation in inflation, usually measured by the IPCA.

One of the biggest advantages we highlight is the liquidity, which can be daily in many titles.

This means that we can redeem the money at any time, which is ideal for the emergency reserve.

In addition, the CDB has the protection of the FGC (Credit Guarantee Fund).

This guarantee covers up to R$ 250 thousand per CPF and by a financial institution, bringing us a lot of security.

Fixed Income Simulator

Compare CDB, LCI, LCA, Tesouro Direto e Poupança em segundos

Preencha os campos abaixo com o valor que pretende investir, o prazo e o produto desejado — depois clique em Simular agora para ver o resultado completo com gráfico e comparativo.

CDI / Seliccarregando...
IPCA (12m)carregando...
Savingscarregando...
R$
R$
% CDI
CDB: incide Regressive income tax (22,5% até 180 dias → 15% acima de 720 dias) e IOF nos primeiros 30 dias.
% CDI
LCI/LCA são isentas de IR para pessoa física — ótimas para médio e longo prazo.
% a.a.
Tesouro: incide IR regressivo + taxa de custódia B3 de 0,20% a.a. (já incluída na simulação).
Com Selic acima de 8,5% a.a.: rende 0,5% ao mês + TR. Com Selic ≤ 8,5%: rende 70% da Selic + TR. Isenta de IR.
Como usar: preencha o valor que pretende investir, defina o prazo e escolha o tipo de investimento nas abas acima — depois clique em Simular agora para ver o resultado completo com gráfico e comparativo.

What is LCI and what are its advantages?

Woman happy with the growth of her LCI investment.
Discover the advantages of LCI and how it can boost your earnings!

A LCI (Real Estate Credit Bill) is a fixed-income security that we use to finance the real estate sector.

Unlike CDBs, the money we invest here is earmarked specifically for the home loans.

The great star of the LCI is undoubtedly the income tax exemption for individuals.

This means that the yield we see on the broker's screen is exactly what will land in our account.

We don't need to worry about regressive income tax table, This makes the LCI very attractive.

Like the CDB, the LCI is also protected by the FGC, This guarantees the same peace of mind for the investor.

The backing for these bonds is the real estate loans secured by mortgage or fiduciary sale of real estate.

This gives the paper an extra layer of robustness, although the main guarantee for us is the bank and the FGC.

However, we need to be aware of one important detail: the liquidity.

Most LCIs have a grace period mandatory 90 days, defined by the National Monetary Council.

Therefore, we shouldn't put the money that we might need for tomorrow.

Even so, for medium-term goals, it's usually one of the best. best choices in our portfolio.

The difference between CDB and LCI in detail

For us to understand which is more worthwhile, we need to look beyond the gross rate offered.

The main difference lies in the way the government taxes these two different investments.

While the CDB follows the regressive table, where the rate falls as time goes by, the LCI is totally exempt.

Below, we have prepared a table to facilitate this visual comparison between the two modalities:

FeaturesCDB (Bank Deposit Certificate)LCI (Real Estate Credit Bill)
Income taxBelow is the regression table (22.5% to 15%)Exempt for individuals
FGC guaranteeYes, up to R$ 250 thousandYes, up to R$ 250 thousand
Resource destinationGeneral banking activitiesReal estate sector
LiquidityCan be daily or on expiryUsually after a 90-day grace period
RiskLow (bank risk)Low (bank risk)

We always need to calculate the net profitability to make a fair comparison.

A CDB that yields 100% of the CDI is not always better than an LCI that yields 90% of the CDI.

This is because the tax discount on the CDB can make your real gain be smaller.

The shorter the investment period, the more LCI exemption tends to be to our advantage.

This is because, in the first six months, the CDB rate is the highest on the market (22,5%).

On the other hand, CDBs usually offer greater variety deadlines and minimum down payments.

How to choose between CDB or LCI for you

The difference between CDB and LCI when choosing the best investment.
Discover the advantages of LCI and how it can boost your earnings!

We believe that the ideal choice depends directly on your financial objectives personal.

The first step we recommend is to analyze your time horizon.

If you need money for an emergency, the CDB with daily liquidity is the absolute winner.

We can't rely on the LCI for immediate contingencies due to the grace period common to these securities.

The second point is to profitability simulation comparing the rates offered.

There's a simple calculation we do: subtract the expected tax from the CDB rate.

If the result is lower than the LCI rate, the Letter of Credit will be the best option for you.

Many investment platforms already show us the equivalent profitability, making life easier.

We must also consider our risk profile, although both are considered safe.

Smaller banks often offer much higher rates on CDBs and LCIs to attract investors.

We need to assess whether the higher premium compensates for the credit risk of this specific institution.

Always check that the broker you invest with is autorizada pelo Banco Central.

Discover the world of fixed income investments with this essential guide to CDB, LCI and LCA. Written in a clear and accessible manner, this book is ideal for anyone who wants to understand the basics of these three types of investment. Learn how they work, what their advantages are and how to choose the best one for your financial profile. Whether you're a beginner investor or someone who wants to diversify your portfolio, this book provides you with the knowledge you need to make safe financial decisions.

Other important points about these bonds

We mustn't forget that diversification is the soul of any sound financial strategy.

It's not necessary to choose just one; we can have CDBs and LCIs simultaneously in our portfolio.

This allows us to balance the need for immediate liquidity with the search for greater exempt profitability.

Another crucial factor that we analyze is the financial health of the issuing institution.

We recommend observing the rating of the bank, which is a grade given by risk agencies.

Even with the protection of the FGC, avoiding institutions in difficulty saves us from headaches and wait.

Market rates vary daily according to the expectations for the Selic rate.

In high interest rate scenarios, fixed-rate bonds are often the favorites of us investors.

At times when inflation is a concern, the hybrid securities guarantee our purchasing power.

We would also warn you about the minimum investment amount, which can vary greatly between securities.

LCIs from large banks often require initial contributions higher than CDBs.

Watch out for “Black Friday” opportunities or broker promotions that raise rates.

The most important thing is to consistency in contributions and focus on your long-term planning.

We're here to make sure that every penny of your effort goes to well applied and protected.

Your Next Step Towards Financial Independence

We hope this guide has shed some light on differences between CDB and LCI, This will enable you to make more informed investment choices. Remember, knowledge is your greatest tool on the road to financial security.

Which of these investments caught your eye the most? Share your doubts and experiences in the comments below! We'd love to hear from you and help you continue building your Wealth Formula.

We've prepared this section to quickly clarify the points that generate the most doubts when deciding where to invest your money.

1. Which yields more: CDB or LCI?

There is no single answer, as profitability depends on the rate offered and the term. The main difference between CDB and LCI is that the LCI is exempt from income tax, so we always recommend calculating the net return to compare whether a CDB with a higher rate really beats the LCI's exempt gain.

2. Are these investments safe for beginners?

Yes, both are considered low risk and ideal for those just starting out. They are protected by Credit Guarantee Fund (FGC) for deposits of up to R$ 250,000 per CPF and per financial institution, guaranteeing the return of your money in the event of problems with the bank.

3. Can I redeem the money at any time in both bonds?

It depends on the liquidity contracted. While many CDBs offer daily liquidity, While LCIs allow immediate redemption, they have a mandatory minimum grace period of 90 days before they allow any withdrawal. We suggest that you always check the maturity date and redemption rules before applying.

4. Why is the LCI exempt from income tax and the CDB not?

The exemption of the LCI is a government incentive to stimulate the financing of the real estate sector in Brazil. The CDB, on the other hand, is a general funding security for banks and follows the regressive IR table, where the rate decreases according to how long the money remains invested.

5. What is the minimum amount to start investing in these securities?

Currently, we find CDBs with initial contributions starting at R$ 1,00 at various digital banks and brokers. LCIs usually require a slightly higher down payment, but this difference has decreased dramatically, making both investments accessible to all budgets.

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Jeferson Santos

Olá! Sou Jeferson Santos, bacharel em Tecnologia da Informação e investidor há 6 anos em ações, fundos imobiliários e renda fixa. Comecei com R$100 e, aplicando análise e disciplina, consegui crescer meu patrimônio em mais de 80% — e conquistar a liberdade financeira que tanto busquei. Criei o Aprender sobre Finanças para compartilhar o que aprendi na prática, sem enrolação e sem promessas irreais. Aqui você encontra conteúdo real, de quem realmente investe.

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