Income Tax 2024: Complete Guide + Updated Table
Complete guide to Income Tax 2024 with updated tables, salary calculation, and legal strategies to reduce tax. Free IR calculator included.
Income Tax 2024 affects millions of Brazilians who receive salaries or have other sources of income. Understanding how to calculate IR correctly is essential to avoid surprises in the annual return or errors in monthly deductions.
This complete guide shows the updated tables for 2024, how to calculate salary deductions, and legal strategies to reduce tax liability.
How Income Tax Works
IR is a federal tax that applies to various types of income. For CLT (labor law) workers, the deduction happens monthly directly from the payroll.
IR taxable event
The taxable event for IR occurs when you:
- Receive salary above the exemption bracket
- Obtain investment income
- Have rental income or self-employment income
- Receive 13th salary, vacation pay, or profit sharing
The calculation base considers gross income minus permitted legal deductions.
Annual return vs payroll deduction
IR works in two main stages:
- Monthly deduction: Automatic payroll withholding (IR-Source)
- Annual return: Settlement of accounts with the Federal Revenue Service
Example: Someone earning R$ 5,000 has IR deducted every month but may be entitled to a refund in the annual return if they have dependents or deductible expenses.
Updated IRPF (income tax) 2024 Table
The 2024 Income Tax table maintains the same brackets and rates as 2023, with no adjustment for inflation.
Income brackets and rates
| Monthly Income Bracket | Rate | Amount to Deduct |
|---|---|---|
| Up to R$ 2,112.00 | Exempt | - |
| R$ 2,112.01 to R$ 2,826.65 | 7.5% | R$ 158.40 |
| R$ 2,826.66 to R$ 3,751.05 | 15% | R$ 370.40 |
| R$ 3,751.06 to R$ 4,664.68 | 22.5% | R$ 651.73 |
| Above R$ 4,664.68 | 27.5% | R$ 884.96 |
Amounts to deduct
The amounts to deduct are fixed values that reduce the final tax. They simplify the progressive calculation of rates.
Exemption bracket
Those earning up to R$ 2,112.00 per month are exempt from IR. For salaries above this amount, the deduction applies only to what exceeds each bracket.
How to Calculate IR on Salary
IR calculation on salary follows a specific sequence that considers mandatory and optional deductions.
IR calculation base
To arrive at the IR calculation base:
- Gross salary (including overtime, night shift differential)
- Minus INSS (social security) contribution (up to the ceiling of R$ 908.85 in 2024)
- Minus alimony (if any)
- Minus dependents (R$ 189.59 per dependent)
Permitted deductions
The main deductions in the monthly calculation are:
- Social security contribution (INSS)
- Court-ordered alimony
- Legal dependents
- Private pension contribution (limited)
Complete practical example
Let’s calculate the IR for a salary of R$ 4,000.00:
Step 1: Gross salary = R$ 4,000.00
Step 2: INSS (11%) = R$ 440.00
Step 3: IR base = R$ 4,000.00 - R$ 440.00 = R$ 3,560.00
Step 4: 15% bracket (R$ 3,560.00 × 15% - R$ 370.40) = R$ 163.60
The IR deduction will be R$ 163.60 per month.
Use our IR calculator to simulate different scenarios and automatically verify calculations.
Dependent Deduction
Dependent deduction can significantly reduce monthly and annual IR.
Who can be a dependent
The following are considered dependents for IR purposes:
- Children up to 21 years old or up to 24 if university students
- Stepchildren and wards under the same conditions
- Spouse or partner without their own income
- Parents, grandparents, or great-grandparents without their own income
- Siblings, grandchildren, or great-grandchildren who are orphans up to 21 years old
Deduction amount per dependent
Each dependent reduces the calculation base by R$ 189.59 per month (R$ 2,275.08 per year).
Example: Father of 2 children with salary of R$ 5,000
IR base without dependents: R$ 4,450.00
IR base with dependents: R$ 4,070.82
Monthly savings: approximately R$ 85.00
How to Legally Reduce IR
There are legal strategies to decrease tax liability:
- PGBL private pension: Deduction of up to 12% of gross income
- Medical expenses: 100% deductible in annual return
- Education: Up to R$ 3,561.50 per person in the return
- Donations: Up to 6% of IR due to controlled funds
Annual planning
Tax planning should consider:
- Concentrating deductible expenses in the same calendar year
- Advancing or postponing income when possible
- Taking advantage of all available legal deductions
Automatic IR Calculator
To facilitate your calculations, use our free Income Tax calculator.
The tool automatically calculates:
- Monthly IR deduction on salary
- Calculation base after deductions
- Impact of dependents on IR
- Comparison between different scenarios
Calculator advantages
- Instant results based on the 2024 table
- Dependent simulation and their savings
- Simple interface for different types of income
- Accurate calculations following current legislation
Frequently Asked Questions
What is the IR exemption bracket amount in 2024?
The Income Tax exemption bracket in 2024 is up to R$ 2,112.00 monthly. Those receiving up to this amount don’t pay IR and don’t need to file an annual return (except for other specific obligations).
How to calculate IR for a R$ 3,000 salary?
To calculate IR for R$ 3,000: first deduct INSS (R$ 330.00), resulting in a base of R$ 2,670.00. As it falls in the 7.5% bracket, IR will be R$ 2,670 × 7.5% - R$ 158.40 = R$ 41.85.
How much do dependents reduce monthly IR?
Each dependent reduces R$ 189.59 from the monthly calculation base. The actual savings vary according to the tax bracket: can generate savings from R$ 14.22 (7.5% bracket) up to R$ 52.14 (27.5% bracket) per dependent.
Does the 13th salary have IR deduction?
Yes, the 13th salary has IR deduction calculated separately. The calculation considers only the 13th salary amount (minus INSS and dependents), applying the monthly table. Therefore, the deduction is often lower than the regular salary.
When do I need to file an IR return?
It’s mandatory to file an IR return if you: received more than R$ 30,639.90 in the year, have assets above R$ 800,000, obtained capital gains, had tax-exempt income above R$ 200,000, or want to recover IR withheld at source.
How does IR refund work?
A refund occurs when you paid more IR during the year (via withholding) than you actually owed. This happens to those who have dependents, deductible expenses, or multiple paying sources. The amount is deposited according to the Federal Revenue Service schedule.
Does private pension reduce IR?
Yes, contributions to PGBL (Free Benefit Generator Plan) can be deducted up to 12% of annual gross income in the return. VGBL doesn’t allow deduction but has more advantageous taxation upon withdrawal for those with few taxable income sources.