US Tax Calculators
Free IRS-aligned tax calculators for the 2025 tax year
US Tax Bracket Calculator
Find your 2025 federal tax bracket, calculate tax owed, and see your effective vs marginal rate.
Self-Employment Tax Calculator
Calculate 15.3% SE tax on 1099 income including Social Security, Medicare, and the 50% deduction.
Quarterly Tax Calculator
Calculate 1040-ES quarterly estimated payments with safe harbor rules to avoid underpayment penalties.
Capital Gains Tax Calculator
Calculate tax on stocks, crypto, and investments. Compare short-term vs long-term rates with NIIT.
About US Tax Calculators
Our US tax calculators help you understand your federal tax liability, plan quarterly payments, and optimize your investment taxes. All calculations use the latest 2025 IRS tax rates and thresholds.
Whether you're a W-2 employee checking your tax bracket, a freelancer calculating self-employment tax, or an investor figuring out capital gains, these tools give you accurate numbers instantly.
2025 Federal Tax Brackets (Single)
- 10%: $0 - $11,925
- 12%: $11,926 - $48,475
- 22%: $48,476 - $103,350
- 24%: $103,351 - $197,300
- 32%: $197,301 - $250,525
- 35%: $250,526 - $626,350
- 37%: Over $626,350
Key Tax Rates for 2025
- Standard Deduction: $15,000 (single), $30,000 (married filing jointly)
- Self-Employment Tax: 15.3% (12.4% Social Security + 2.9% Medicare)
- Long-Term Capital Gains: 0%, 15%, or 20% depending on income
- NIIT: Additional 3.8% on investment income for high earners
- Social Security Wage Base: $176,100