The minimum is 0.01 units of a bond, which in practice means approximately R$30–100 depending on the bond type and its current unit price.
Tesouro Direto Yield Calculator (Brazil)
Simulate returns on Tesouro Selic, IPCA+ and Prefixado with IR and B3 fees.
Understanding the three main Tesouro Direto products.
Tesouro Direto is a program from the Brazilian Treasury (Tesouro Nacional) that allows individuals to buy government bonds. Three main types are available: Tesouro Selic (post-fixed, tracks Selic), Tesouro IPCA+ (inflation-linked with a spread), and Tesouro Prefixado (fixed annual rate known at purchase). All are subject to the IR regressive table and a B3 custody fee of 0.20% per year.
Choose the treasury type and fill in the parameters.
- Select Tesouro Selic, IPCA+ or Prefixado.
- Enter the principal, term, and relevant rate (Selic, IPCA estimate, or fixed spread).
- See gross and net returns after IR and B3 custody fee.
Sources and references for this tool
These references help contextualize formulas, standards, APIs and limitations used on this page. They do not replace professional validation when a result has legal, financial, medical or operational impact.