Step-by-Step Guide to Filing Income Tax in 2026: Complete Instructions
Every year, as the calendar turns to the first quarter, millions of Brazilians face the same obligation: filing their Income Tax return with the Federal Revenue Service. In 2026, the process follows the same procedure, but with special attention to the rules and limits in effect for the base year 2025. As always, procrastinating can be costly — literally.
The good news is that filing your tax return doesn’t have to be a daunting task. With organization, the right documents in hand, and a basic understanding of what the Revenue Service expects from you, you can fulfill this obligation calmly, avoid errors that lead to audits, and, in many cases, receive your refund within a few months. This guide was created precisely for that purpose.
Before you start, an important notice: Income Tax rules may be updated by law or normative instructions from the Federal Revenue Service throughout the year. The information presented here is based on current legislation and guidelines published by the Federal Revenue Service of Brazil. Always confirm the values and deadlines directly on the official Revenue Service website (receita.fazenda.gov.br) before filling out or submitting your return.
Who Is Required to File in 2026?
The first question every taxpayer should ask is: Do I need to file? The obligation is defined by criteria established by the Federal Revenue Service based on data from the previous base year (in this case, 2025).
Generally, you are required to file if, in 2025:
- Received taxable income (such as salaries, pensions, rents) above the annual limit set by the Federal Revenue Service — check the updated value on the official site, as this limit may be adjusted by normative instruction;
- Received exempt, non-taxable, or exclusively taxed at source income above the current limit;
- Realized capital gains from the sale of assets or rights;
- Conducted operations in the stock market, futures markets, or similar;
- Owned, as of December 31, 2025, assets or rights above the exemption limit;
- Started residing in Brazil in any month of 2025 and remained until December 31;
- Obtained gross income from rural activities above the established limit.
Even those who are not required can file voluntarily — for example, to reclaim Income Tax withheld at source that would not be automatically refunded.
What You Need to Gather Before Starting
Organizing documents in advance is the key to a stress-free filing. Gather:
- Income statements from employers (provided by the end of February by the employer or paying source);
- Financial income statements from banks, brokerage firms, and managers (also available in the institutions’ apps and internet banking);
- Documents of assets and rights: property deeds, vehicle documents, financing contracts;
- Receipts for deductible expenses: doctors, dentists, health plans, education (with provider’s CNPJ), private pension PGBL;
- Dependents’ CPF and documents proving dependency;
- Social security statements (INSS) for retirees and pensioners;
- CAEPF number (Individual Taxpayer’s Economic Activity Register), if you have rural activities or are self-employed;
- Previous year’s return (useful as a reference for assets, debts, and receipt number).
Keep everything in a physical or digital folder. Lost documents are one of the main causes of errors and delays.
Step-by-Step: How to Fill Out the Return
1. Download or Access the Correct Program
The Federal Revenue Service provides three ways to file:
- IRPF 2026 generator program, for download on computers (Windows, Mac, and Linux);
- My Income Tax app, for smartphones (iOS and Android);
- Pre-filled declaration, available through the Gov.br portal with a silver or gold account — one of the most practical options, as it automatically imports data reported by employers, banks, and health plans.
Always access through the official address: gov.br/receitafederal
2. Choose the Type of Declaration: Complete or Simplified
- Simplified declaration: replaces all legal deductions with a standard discount of 20% on taxable income, up to the limit set by current legislation. It is more advantageous for those with few deductible expenses.
- Complete declaration: allows deductions for health expenses (no limit), education (up to the annual cap), dependents, official and PGBL pensions (up to 12% of taxable gross income). It is usually more advantageous for families with many medical expenses.
The Federal Revenue Service program itself compares the two options and indicates which results in lower tax or higher refund.
3. Fill in Personal and Dependent Information
Provide CPF, address, main occupation, and bank details for refund. If you have dependents (children, spouse, parents), include each one’s CPF — the Federal Revenue Service requires CPF for dependents of any age.
4. Report Income
This is the central part of the declaration. Report:
- Taxable income received from legal entities (salaries, pro-labor, rents): use income statements;
- Taxable income received from individuals (self-employed who provided services to individuals);
- Exempt and non-taxable income: indemnities, FGTS, profits and dividends received, savings income, among others;
- Income subject to exclusive/definitive taxation: 13th salary, income from financial applications with tax withheld at source.
5. Report Assets, Rights, Debts, and Real Liabilities
In the Assets and Rights section, declare all assets you owned on 12/31/2024 and 12/31/2025 with acquisition values (not market value). Include properties, vehicles, bank account balances, financial investments, company shares, among others.
In the Debts and Real Liabilities section, report loans, mortgages, and other debts with balances above the established limit.
6. Include Deductions (if using the complete model)
- Health: no value limit, but requires provider’s CPF and proven payment;
- Education: there is an annual limit per person — check the updated value with the Federal Revenue Service;
- Private pension PGBL: deductible up to 12% of taxable gross income;
- Dependents: there is a fixed deduction value per dependent — check the current value;
- Alimony: deductible when paid by court order.
7. Review, Calculate, and Submit
Before submitting, use the program’s “Check for Inconsistencies” function. It points out inconsistencies that may lead to audits. Check if all CPFs are correct, if values match the statements, and if no mandatory section is left blank.
After submission, keep the receipt number — it is necessary for future corrections and to track processing.
Deadlines and Penalties: Don’t Procrastinate
The Federal Revenue Service sets the declaration submission period generally between March and April each year (for IRPF 2026, referring to the base year 2025). Check the exact dates on the official site, as deadlines may vary.
Missing the deadline incurs a minimum fine of R$ 165.74 and a maximum of 20% of the tax due — plus any interest. The fine applies even to those with no tax to pay.
Audit: How to Avoid and What to Do If Audited
An audit occurs when the Federal Revenue Service detects inconsistencies in your return — for example, medical expenses without provider’s CPF, undeclared income, or discrepancies with information provided by employers and banks.
To avoid:
- Ensure all CPFs and CNPJs are correct;
- Report all income, including from small sources;
- Do not declare expenses you cannot prove with a receipt or invoice;
- Use the pre-filled declaration as a starting point and check each field.
If you are audited, don’t panic. The Federal Revenue Service notifies the taxpayer through the e-CAC portal (eCAC.receita.fazenda.gov.br), where you can identify the issue and submit a corrective declaration to fix the error — at no cost, before any formal assessment.
Refund: When and How to Receive
The refund is the amount you overpaid in taxes throughout the year and are entitled to receive back. It is paid in batches, from May to December, with correction by the Selic rate (the basic interest rate of the Brazilian economy, set by the Central Bank — check the current value at bcb.gov.br).
The priority order of batches favors seniors over 80 years old, then over 60, people with disabilities or serious illnesses, teachers, and then other taxpayers — in order of declaration submission. Those who file early receive first.
You can track your refund through the My Income Tax app or the Revenue Service’s website.
Conclusion: Organization Is the Taxpayer’s Best Ally
Filing Income Tax in 2026 remains an obligation that requires attention, but it is far from impossible for those who prepare. Gather documents in advance, understand if you are required to file, choose the most advantageous model for your profile, and review everything before submitting.
Good financial management throughout the year — such as keeping medical receipts, tracking statements, and maintaining updated records — makes this process much simpler. If you are still building your financial organization, articles like Increase Your Credit Score with Simple Steps show that small habits make a big difference in the long run.
If you have doubts about specific situations — such as inheritances, capital gains on properties, foreign income, or business activities — consider seeking the guidance of an accountant or tax specialist. The time saved and the risk avoided are worth the investment.
> Educational Note: This article is for educational and informational purposes only. It does not constitute tax advice, legal advice, or personalized recommendation. Tax rules may change; always consult the official Federal Revenue Service website (receita.fazenda.gov.br) for updated information. For financial and tax decisions, consult a duly qualified accountant, tax lawyer, or advisor.
