Tesouro Direto Guide: Selic, Prefixado & IPCA+ Returns & Rules

Complete Tesouro Direto 2026-2027 guide: Tesouro Selic, Prefixado, IPCA+ inflation hedge, regression income tax table, and comparison simulator.

GBy GST Munshi Brazil Statutory & Quantitative Desk•Published: September 2026•20 min read
Verified against Official Govt Circulars & Statutes
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Secretaria do Tesouro Nacional & B3 Framework• 20 min read• October 2026

Tesouro Direto Guide: Selic, Prefixado & IPCA+ Returns & Rules

Complete Tesouro Direto 2026-2027 guide: Tesouro Selic, Prefixado, IPCA+ inflation hedge, regression income tax table, and comparison simulator.

Fact-Checked & Audited: Verified against Secretaria do Tesouro Nacional (STN) Normative Rules, B3 Custody Regulations & Receita Federal Normative Instruction RFB nº 1.585
Quick Answer & Key Takeaways

How does Tesouro Direto work and which bond type should you choose?

Tesouro Direto is an official retail platform created by the National Treasury of Brazil (STN) in partnership with B3 to sell federal government bonds directly to individuals starting at approximately R$ 30. Investors choose between three bond families: Tesouro Selic (floating rate for emergency reserves with zero price fluctuation risk), Tesouro Prefixado (fixed nominal yield locked to maturity), and Tesouro IPCA+ (real interest rate plus inflation protection). All bonds are subject to the regressive income tax table ranging from 22.5% for investments under 180 days down to 15% after 720 days.
Minimum Investment: As low as ~R$ 30 (fractional unit equivalent to 1% of one bond)
B3 Custody Fee: 0% fee on Tesouro Selic balances up to R$ 10,000; 0.20% a.a. on excess or other bonds
Daily Liquidity: Repurchase guaranteed by the National Treasury on business days (settlement D+0 to D+1)
Marking-to-Market (Marcação a Mercado): Prefixado and IPCA+ experience bond price volatility if sold before maturity
Taxation: Regressive income tax deducted automatically upon redemption or maturity (no Come-Cotas)
MINIMUM ENTRYAccessibility
~R$ 30,00
0.01 Fraction of Bond
LONG-TERM IR RATETax Bracket
15.0%
After 720 Days (2 Years)
B3 CUSTODY FEEB3 Tariff
0.00% / 0.20%
Zero up to R$ 10k on Selic
SOVEREIGN SAFETYZero Default Risk
100% Tesouro
Backed by Federal Republic

Comparador de Títulos Públicos: Tesouro Selic vs. Prefixado vs. IPCA+

Simulação oficial com desconto de Imposto de Renda de 15% (Secretaria do Tesouro Nacional / B3)

1 ano3 anos5 anos10 anos
Meta Banco Central: 3.00% a.a.
Tesouro SelicPós-fixado
R$ 13.362,10Ideal para reserva de emergência e resgate a qualquer momento sem oscilação.
Tesouro PrefixadoTaxa Fixa
R$ 13.602,54Garante a taxa pactuada até o vencimento. Risco de marcação a mercado se resgatar antes.
Tesouro IPCA+Juro Real + IPCA
R$ 13.133,11Proteção máxima contra inflação. O poder de compra é 100% blindado no longo prazo.

The Three Pillars of Public Debt: Selic, Prefixado, and IPCA+

Launched in 2002, Tesouro Direto revolutionized retail financial access in Brazil by enabling citizens to purchase sovereign government paper without intermediary mutual fund management fees. Unlike corporate debentures or bank certificates subject to institutional balance sheet risks, federal bonds carry the credit risk of the sovereign state, making them the safest asset class in the national financial system.

Choosing the appropriate security requires matching your financial goals with the underlying indexation mechanism. Tesouro Selic (LFT) tracks the benchmark rate daily. Because its principal value does not decline when interest rates rise, it is the only bond suitable for short-term liquidity, working capital buffers, and emergency funds.

In contrast, Tesouro Prefixado (LTN and NTN-F) and Tesouro IPCA+ (NTN-B Principal) incorporate interest rate duration risk. When future market interest curves shift upward, the secondary market valuation of existing fixed-rate bonds drops. Conversely, when forward rates tumble, bond prices surge, allowing tactical investors to capture substantial capital gains through early exit before maturity.

Regressive Income Tax and B3 Custody Fee Structure

Profits generated in Tesouro Direto are taxed under the progressive holding-period table established by Receita Federal Normative Instruction RFB 1.585. Gains realized within 180 days incur a 22.5% withholding tax. Between 181 and 360 days, the rate drops to 20.0%; between 361 and 720 days, it falls to 17.5%; and for holdings exceeding 720 days (2 full years), the rate reaches its terminal floor of 15.0%.

Crucially, Tesouro Direto is free from the biannual 'Come-Cotas' tax deduction that penalizes open-ended DI funds in May and November. Taxes are deferred entirely until actual liquidation or coupon payment, compounding gross principal for superior efficiency. Additionally, B3 exempts all custody fees on Tesouro Selic positions up to R$ 10,000, charging 0.20% annually only on balances exceeding that threshold.

Comparative Roster of Official Tesouro Direto Bonds

Bond NameIndexationVolatility / Mark-to-MarketBest PurposeInterest Payout
Tesouro Selic100% Selic Over + SpreadNegligible / Zero downsideEmergency Fund & Short Term (<1 yr)At Maturity / Redemption
Tesouro PrefixadoFixed Nominal % (e.g. 12.5% a.a.)High if sold before maturityMedium Term with visible goal (2-5 yrs)At Maturity / Redemption
Tesouro Prefixado com JurosFixed Nominal %High if sold before maturityComplementary income cash flowSemiannual Coupons
Tesouro IPCA+IPCA Inflation + Real % (e.g. +6.5%)High if sold before maturityRetirement & Long-Term Purchasing PowerAt Maturity / Redemption
Tesouro RendA+IPCA + Real %High in accumulation phaseStructured Retirement (240 monthly payouts)Monthly for 20 years
Tesouro Educa+IPCA + Real %High in accumulation phaseUniversity tuition (60 monthly payouts)Monthly for 5 years

Step-by-Step Guide to Purchasing Federal Bonds

01Passo 1

Open Account at Zero-Fee Broker

Register with an accredited Brazilian brokerage firm or digital bank that does not charge intermediary brokerage fees for Tesouro Direto.

02Passo 2

Access the Official Tesouro Direto Portal

Connect your CPF through Gov.br (Prata or Ouro level) to link your custodial account directly to the National Treasury system.

03Passo 3

Select Bond Aligned with Horizon

Use Tesouro Selic for capital needed within 2 years; select Tesouro IPCA+ with maturity matching your target retirement or real estate down payment date.

04Passo 4

Schedule Automated Monthly Aportes

Set up recurrent monthly investments (investimento programado) via PIX or automatic debit to benefit from dollar-cost averaging.

Fundamentação Legal e Fontes Oficiais

Regulamento do Tesouro DiretoSecretaria do Tesouro Nacional (STN)Operational rules, daily trading windows, and mandatory buyback obligations of sovereign debt.
Instrução Normativa RFB nº 1.585/2015Receita Federal do BrasilRegressive capital gains taxation schedule for fixed-income financial investments in Brazil.

📺 Tutoriais e Análises em Vídeo Verificados

4 Vídeos Selecionados
O Primo Rico: Como Investir no Tesouro Direto do Zero: Passo a Passo Completo
Watch on YouTube
Verified Tutorial by O Primo RicoWatch on YouTube
Fonte: O Primo Rico • Como Investir no Tesouro Direto do Zero: Passo a Passo Completo
Me Poupe!: Tesouro Selic vs. IPCA vs. Prefixado: Qual escolher agora?
Watch on YouTube
Verified Tutorial by Me Poupe!Watch on YouTube
Fonte: Me Poupe! • Tesouro Selic vs. IPCA vs. Prefixado: Qual escolher agora?
Clube dos Poupadores: Marcação a Mercado no Tesouro Direto Explicada: Como Lucrar
Watch on YouTube
Verified Tutorial by Clube dos PoupadoresWatch on YouTube
Fonte: Clube dos Poupadores • Marcação a Mercado no Tesouro Direto Explicada: Como Lucrar
B3 - Brasil, Bolsa, Balcão: Tesouro RendA+ e Educa+: Como funcionam os novos títulos públicos
Watch on YouTube
Verified Tutorial by B3 - Brasil, Bolsa, BalcãoWatch on YouTube
Fonte: B3 - Brasil, Bolsa, Balcão • Tesouro RendA+ e Educa+: Como funcionam os novos títulos públicos

Análises de Especialistas e Práticos de Mercado

T
Thiago Nigro
Financial Educator & Founder of Grupo Primo
LinkedIn Executive Brief

"There is no excuse for leaving money in savings accounts. A simple transfer of R$ 50 to Tesouro Selic yields higher net returns with superior credit safety backed by the Brazilian federal government."

Ponto-Chave Prático: Automate monthly investments into sovereign floating debt for financial peace of mind.
N
Nathalia Arcuri
Financial Journalist & Founder of Me Poupe!
X / Twitter Analyst

"Tesouro IPCA+ with real rates above 6.0% represents a historic real return opportunity rarely found anywhere else globally. If you hold until maturity, inflation cannot erode your wealth."

Ponto-Chave Prático: Match IPCA+ maturities to long-term lifecycle objectives to eliminate market volatility risk.

Perguntas Frequentes (FAQ)

Can I lose money in Tesouro Direto?▼

If you hold any bond until its maturity date, you will receive 100% of the agreed nominal or real yield. However, if you sell Tesouro Prefixado or Tesouro IPCA+ early before maturity, market-to-market repricing can cause temporary capital loss if interest curves have risen.

What is the minimum amount to start investing in Tesouro Direto?▼

You can start with approximately R$ 30, which corresponds to the purchase of 1% (0.01 fractional unit) of a federal bond.

How does the B3 custody fee work?▼

B3 charges zero custody fees on Tesouro Selic balances up to R$ 10,000. For amounts exceeding R$ 10,000 in Selic or in any amount for Prefixado/IPCA+, a small fee of 0.20% per year is debited semiannually.

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Senior Statutory & Financial Research Desk

Citizen Compliance Cell

Citizen Compliance Cell is a specialized editorial research unit at GST Munshi comprising Chartered Accountants, tax litigators, commercial bankers, and policy analysts dedicated to verifying Indian statutory circulars (CBIC, CBDT, RBI, IRDAI, and Ministry Gazettes) into actionable guides.

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