Accurate Federal Tax Calculations
Our federal tax calculators use the latest 2025 tax laws, rates, and brackets to provide accurate estimates for your tax planning needs. All calculations are performed locally in your browser to ensure your financial information remains private and secure.
Federal Income Tax Calculators
Federal Income Tax Calculator
Calculate your federal income tax liability based on your income, filing status, and deductions.
- 2025 tax brackets and rates
- Standard and itemized deductions
- All filing statuses supported
- Detailed tax breakdown
Marginal Tax Rate Calculator
Determine your marginal tax rate and understand how additional income affects your taxes.
- Current marginal tax rate
- Impact of additional income
- Tax planning insights
- Bracket analysis
Effective Tax Rate Calculator
Calculate your effective tax rate and compare different tax scenarios.
- Overall effective tax rate
- Tax burden analysis
- Scenario comparisons
- Planning recommendations
Payroll Tax Calculators
Payroll Tax Calculator
Calculate federal payroll taxes including Social Security and Medicare taxes.
- Social Security tax (6.2%)
- Medicare tax (1.45%)
- Additional Medicare tax
- Employer and employee portions
Self-Employment Tax Calculator
Calculate self-employment tax for freelancers and business owners.
- 15.3% self-employment tax
- Deductible portion calculation
- Net earnings from self-employment
- Quarterly payment estimates
Tax Withholding Calculator
Determine the right amount of federal tax withholding from your paycheck.
- W-4 form guidance
- Withholding optimization
- Avoid underpayment penalties
- Refund vs. owe analysis
Tax Credits & Special Calculators
Child Tax Credit Calculator
Calculate the Child Tax Credit and Additional Child Tax Credit for qualifying children.
- Up to $2,000 per child
- Income phase-out calculations
- Refundable portion (up to $1,600)
- Qualifying child requirements
Earned Income Tax Credit Calculator
Calculate the Earned Income Tax Credit (EITC) for low to moderate-income workers.
- Income and family size based
- Fully refundable credit
- Maximum credit amounts
- Eligibility requirements
Retirement Tax Calculator
Calculate taxes on retirement income including 401(k), IRA, and Social Security.
- Traditional IRA/401(k) withdrawals
- Social Security taxation
- Pension income taxation
- Required minimum distributions
2025 Federal Tax Information
Standard Deductions
Single: $14,600
Married Filing Jointly: $29,200
Head of Household: $21,900
Married Filing Separately: $14,600
Tax Brackets
Seven tax brackets ranging from 10% to 37% based on income and filing status. Marginal tax system means you pay different rates on different portions of income.
Payroll Tax Rates
Social Security: 6.2% (up to $168,600)
Medicare: 1.45% (all income)
Additional Medicare: 0.9% (high earners)
Important Deadlines
Tax Filing: April 15, 2025
Quarterly Payments: Jan 15, Apr 15, Jun 16, Sep 15
Extension Deadline: October 15, 2025
Start Your Federal Tax Planning
Use our comprehensive federal tax calculators to plan your taxes, optimize withholding, and make informed financial decisions.
Income Tax Calculator Payroll Tax Calculator