Income Tax Return Calculator Online
Income Tax Calculator
Filing Information
Income Sources
The income tax calculator estimates your federal income tax liability based on taxable income and filing status. It applies the 2024 tax brackets and shows your marginal rate, effective tax rate, and estimated tax owed.
2024 Federal Income Tax Brackets (Single Filers)
| Taxable Income | Tax Rate | Tax on This Bracket |
|---|---|---|
| $0 to $11,600 | 10% | Up to $1,160 |
| $11,601 to $47,150 | 12% | Up to $4,266 |
| $47,151 to $100,525 | 22% | Up to $11,753 |
| $100,526 to $191,950 | 24% | Up to $21,943 |
| $191,951 to $243,725 | 32% | Up to $16,563 |
| $243,726 to $609,350 | 35% | Up to $128,001 |
| Above $609,350 | 37% | On amount above $609,350 |
Marginal Rate vs. Effective Tax Rate
Your marginal rate is the tax rate on your last dollar of income. Your effective rate is the actual percentage of total income paid in tax. A $90,000 income falls in the 22% marginal bracket, but your effective rate is about 16% because the first $11,600 is taxed at 10%, the next $35,550 at 12%, and only the remainder at 22%.
Effective Tax Rate = Total Tax Owed / Taxable Income x 100
Example: $80,000 income, $13,234 federal tax owed. Effective rate = $13,234 / $80,000 = 16.5%.
Standard Deduction 2024
| Filing Status | Standard Deduction 2024 |
|---|---|
| Single | $14,600 |
| Married Filing Jointly | $29,200 |
| Head of Household | $21,900 |
| Married Filing Separately | $14,600 |
How Deductions Reduce Your Tax Bill
The standard deduction reduces your taxable income before brackets are applied. A single filer earning $70,000 gross subtracts $14,600 standard deduction = $55,400 taxable income. Tax on $55,400 is significantly less than tax on $70,000. Itemizing deductions (mortgage interest, charity, state taxes) can reduce taxable income further if the total exceeds the standard deduction.
Frequently Asked Questions
How do US income tax brackets work?⌄
Tax brackets are marginal: each bracket only applies to income within that range, not your entire income. A $60,000 earner does not pay 22% on all $60,000. They pay 10% on the first $11,600, 12% on the next $35,550, and 22% only on the remaining $12,850.
What is the difference between a tax deduction and a tax credit?⌄
A deduction reduces your taxable income. A $1,000 deduction saves you $220 if you are in the 22% bracket. A credit reduces your tax bill dollar for dollar. A $1,000 credit saves $1,000 regardless of your bracket. Credits are generally more valuable than deductions of the same amount.
What is the standard deduction for 2024?⌄
For 2024, the standard deduction is $14,600 for single filers, $29,200 for married filing jointly, and $21,900 for head of household. About 90% of taxpayers take the standard deduction rather than itemizing.
How much tax will I owe on $50,000?⌄
A single filer earning $50,000 in 2024 owes approximately $4,432 in federal income tax after the standard deduction. This is an effective rate of about 8.9%. This does not include FICA taxes (7.65% total for Social Security and Medicare), which are separate.
When is the tax filing deadline?⌄
The standard federal income tax deadline is April 15. If April 15 falls on a weekend or holiday, the deadline shifts to the next business day. You can request an automatic 6-month extension (to October 15), but any tax owed is still due by April 15 to avoid penalties and interest.