🧾 Income Tax Calculator
Estimate your 2024 US federal income tax, effective rate, and marginal tax bracket.
Tax Information (2024)
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Federal Tax Owed
$0
Effective Federal Rate
0%
Marginal Tax Bracket
0%
State Tax (est.)
$0
FICA (SS + Medicare)
$0
Total Tax Burden
$0
After-Tax Income
$0
How US Federal Income Tax Works
The US uses a progressive tax system, meaning different portions of your income are taxed at different rates. You only pay the higher rate on income within that bracket — not on your entire income.
2024 Federal Tax Brackets (Single Filers)
- 10% on income up to $11,600
- 12% on income from $11,601 to $47,150
- 22% on income from $47,151 to $100,525
- 24% on income from $100,526 to $191,950
- 32% on income from $191,951 to $243,725
- 35% on income from $243,726 to $609,350
- 37% on income over $609,350
Standard Deductions (2024)
- Single: $14,600
- Married Filing Jointly: $29,200
- Head of Household: $21,900
What is the difference between effective and marginal tax rate? +
Your marginal rate is the rate applied to your last dollar of income (your "tax bracket"). Your effective rate is the average rate on all your income — total tax divided by total income. Effective rate is almost always lower than the marginal rate in a progressive system.
What is FICA tax? +
FICA stands for Federal Insurance Contributions Act. It includes Social Security tax (6.2% on wages up to $168,600 in 2024) and Medicare tax (1.45% on all wages, plus 0.9% additional on high earners). Your employer matches these amounts.