Tesouro Direto 2025: How to Invest and Calculate Profitability

How to Invest in Tesouro Direto: Complete Guide 2025

Tesouro Direto is the Federal Government program that allows individuals to buy public bonds directly over the internet, starting at just $30.00. It is considered the lowest risk investment in the Brazilian financial market, as it is guaranteed by the government itself.

Use our Direct Treasury Simulator to calculate how much you will receive from each type of security, after deducting Income Tax.


The 3 Main Treasury Direct Bonds

1. Selic Treasury (LFT)

  • How it works: Profitability is linked to the Selic rate (the economy's basic interest rate). If the Selic is at 13% per year, the Treasury Selic yields approximately 13% per year.
  • When to choose: It is the ideal title for emergency reserve, as it does not fluctuate in price and can be redeemed at any time without losing value. It is the safest and most liquid of securities.

2. Treasury IPCA+ (NTN-B)

  • How it works: Profitability is made up of two parts: the variation in the IPCA (official inflation index) plus a prefixed real rate (e.g. IPCA + 6% per year). This guarantees a real gain above inflation.
  • When to choose: Ideal for long-term goals, such as retirement, as it preserves and increases the purchasing power of the money invested. It must be held until maturity to avoid market fluctuations.

3. Prefixed Treasury (LTN)

  • How it works: The interest rate is defined at the time of purchase and does not change during the term of the title. If you buy at 12% per year, you will receive exactly 12% per year, regardless of what happens with the Selic or inflation.
  • When to choose: Indicated when it is believed that the Selic rate will fall in the future. In this scenario, you "lock in" a high rate now and earn more than someone who invests in the future with a lower Selic.

Income Tax at Treasury Direct

All Treasury Direct bonds are subject to Income Tax (IR) at source, following the regressive fixed income table:

Application Deadline IR rate
Up to 180 days 22.5%
From 181 to 360 days 20.0%
From 361 to 720 days 17.5%
Over 720 days 15.0% (lowest rate)

In addition to IR, there is a six-monthly charge for IOF (Financial Operations Tax), but this only applies to redemptions made in the first 30 days of application.


How to Buy Direct Treasury Bonds

  1. Open an account with a broker: Most banks and stock brokers allow the purchase of Treasury Direct bonds, often without an additional custody fee.
  2. Access the Tesouro Direto portal: Check available titles, their interest rates and maturities at www.tesourodireto.com.br.
  3. Simulate before buying: Use our simulator to see the exact net income before deciding.
  4. Invest: With the chosen broker, select the title, value and confirm the purchase.

Simulate your Investment Now

Do you want to know exactly how much an investment of $ 1.000 ou $ 10,000 in the Selic, IPCA+ or Prefixed Treasury will yield in 1, 2 or 5 years?

Click here to access our Direct Treasury Simulator and receive calculations with and without IR discount in detail and free of charge!

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