Tax Estimator
Know your tax burden for 2025
Calculate your total tax burden — federal income tax, state income tax, Social Security, and Medicare — in one place. Our free tax calculator uses 2026 IRS brackets and your state's actual rates to show your effective and marginal rates, with a clear breakdown of every deduction.
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Tax Filing Decision Tree: Navigate Your Tax Situation
Are You Self-Employed?
If you earn income as a freelancer, independent contractor, or small business owner, you face self-employment (SE) tax on top of regular income tax. SE tax is 15.3% of net earnings — covering both the employee and employer portions of Social Security (12.4%) and Medicare (2.9%). This is reported on Schedule C and Schedule SE.
Key difference from W-2 employees: Your employer pays half of FICA on your behalf. As self-employed, you pay both halves. On $80,000 of net self-employment income, you owe approximately $11,304 in SE tax before income tax is even calculated. The good news: you can deduct 50% of SE tax ($5,652) as an above-the-line deduction, and you can also deduct business expenses, health insurance premiums, and home office costs.
Do You Take the Standard or Itemized Deduction?
The standard deduction for 2026 is $15,200 (single), $30,400 (married filing jointly), or $22,350 (head of household). You should itemize only if your total deductions exceed these amounts.
When to itemize: You own a home with combined state/local taxes above $10,000 (SALT cap), you make substantial charitable donations, or you have medical expenses exceeding 7.5% of AGI. On a $150,000 salary, itemizing with $15,000 in mortgage interest, $10,000 in SALT, and $5,000 in charitable giving ($30,000 total) beats the $15,200 standard deduction by $14,800 — saving you roughly $3,256 in federal taxes at the 22% bracket.
When the standard deduction wins: If you rent, live in a no-income-tax state, or have modest charitable giving, the standard deduction almost always provides the better outcome. About 90% of taxpayers now take the standard deduction after the 2017 Tax Cuts and Jobs Act nearly doubled it.
What Credits Can You Claim?
Tax credits reduce your bill dollar-for-dollar — far more valuable than deductions. The most impactful credits for most filers:
- Earned Income Tax Credit (EITC): Up to $7,430 for families with three or more children (2026). Available to single filers earning under $59,899 or married filers under $68,384. This is the most valuable anti-poverty credit in the tax code — refundable even if you owe no tax.
- Child Tax Credit (CTC): $2,000 per qualifying child under 17. Partially refundable up to $1,700. Phases out above $200,000 single / $400,000 MFJ. For a family with two children, that is $4,000 in direct tax reduction.
- American Opportunity Credit: Up to $2,500 per student for the first four years of post-secondary education. 40% refundable (up to $1,000 back even if you owe no tax). Covers tuition, fees, and course materials.
- Saver's Credit: Up to $1,000 ($2,000 MFJ) for retirement contributions. Available to filers earning under $38,000 single / $76,000 MFJ. Matches 50% of the first $2,000 contributed to a 401(k) or IRA.
Should You Contribute to a 401(k) or Roth IRA?
The tax impact of retirement contributions is immediate and measurable:
401(k) contribution at $23,500 on an $80,000 salary in the 22% bracket saves $5,170 in federal taxes this year. Your taxable income drops to $56,500, and your effective rate falls from 13.5% to 10.8%. The money grows tax-deferred and is taxed upon withdrawal in retirement.
Roth IRA contribution at $7,000 provides no current tax break — but all growth and withdrawals in retirement are 100% tax-free. If you expect a higher tax rate in retirement, the Roth wins. If you expect a lower rate, the Traditional 401(k)/IRA wins.
Optimal strategy: Contribute to your employer 401(k) up to the match (free money), then max a Roth IRA ($7,000), then return to the 401(k) up to $23,500. This gives tax diversification — some money taxed now (Roth), some taxed later (Traditional).
Historical COLA Adjustments (2018-2026)
The Social Security Administration adjusts benefits annually to keep pace with inflation. These Cost-of-Living Adjustments directly affect retirees and disability beneficiaries.
Source: Social Security Administration, Cost-of-Living Adjustments
Median Household Income by Filing Status
Your filing status dramatically affects bracket thresholds and standard deductions. Here is how median incomes align with common filing statuses:
Source: U.S. Census Bureau, Current Population Survey, 2025
Average Effective Tax Rate by Income Percentile
The effective tax rate (total tax divided by total income) varies significantly across income levels. Here is how the average American's tax burden breaks down by percentile, including federal income tax, FICA, and estimated state taxes:
Source: Tax Foundation, IRS Statistics of Income, BLS data. Total rate includes federal income tax + FICA + estimated state tax.
Internal Resources
Explore related tools: Salary Calculator · Budget Planner · Retirement Calculator · Debt-to-Income Calculator
Written by Finance Experts · Sources: IRS, SSA, Census Bureau, Tax Foundation, BLS · Last updated September 2026
Frequently Asked Questions
How is federal income tax calculated?
Federal tax uses progressive brackets from 10% to 37%. You only pay the higher rate on income within each bracket, not on your entire salary. The standard deduction ($15,200 single, $30,400 MFJ) is subtracted first. Your effective rate is always lower than your marginal rate.
What is the difference between a tax deduction and a tax credit?
A deduction reduces your taxable income (e.g., $1,000 deduction saves $240 in the 24% bracket). A credit reduces your tax bill dollar-for-dollar (e.g., $1,000 credit saves $1,000). Credits are far more valuable than deductions.
How can I reduce my tax bill legally?
Max out pre-tax accounts (401k at $23,500, HSA at $4,150), harvest investment losses, claim all credits (Child Tax Credit, education credits), and consider Roth conversions during low-income years. Itemize only if deductions exceed the standard deduction.
What is FICA and how is it different from income tax?
FICA includes Social Security (6.2% up to $176,100) and Medicare (1.45%). It is calculated on gross income, not reduced by pre-tax deductions. High earners pay an additional 0.9% Medicare tax over $200K/$250K.
Should I itemize or take the standard deduction?
Take the standard deduction ($15,200 single, $30,400 MFJ for 2026) unless your itemized deductions (mortgage interest, SALT up to $10K, charitable donations, medical over 7.5% of AGI) exceed these amounts. Most taxpayers benefit from the standard deduction.
How do state taxes affect my total tax burden?
State taxes range from 0% (TX, FL, WA) to 13.3% (CA). On $100K income, state taxes can range from $0 to $5,800. This calculator includes all 50 states with their current brackets and standard deductions.
What is the Additional Medicare Tax?
The Additional Medicare Tax of 0.9% applies to wages over $200,000 for single filers, $250,000 for MFJ, and $125,000 for MFS. This is in addition to the standard 1.45% Medicare tax and applies to gross income, not adjusted income.
How does the Student Loan Interest deduction work?
You can deduct up to $2,500 in student loan interest paid during the year, even if you take the standard deduction. This is an above-the-line deduction that reduces your AGI. It phases out at higher income levels ($80K-$95K single).
What tax deductions can self-employed people claim?
Self-employed individuals can deduct the employer portion of FICA (7.65%), health insurance premiums, home office expenses, business equipment, professional development, and 50% of self-employment tax. The QBI deduction allows 20% of qualified business income (federal only).
How do I estimate taxes for next year?
Use this calculator with your expected income. Consider any life changes: new job, marriage, children, home purchase. Adjust your W-4 withholding if your situation changes significantly. Quarterly estimated payments may be needed if you owe $1,000+ in taxes.
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What is a Tax Calculator?
Your tax burden includes federal income tax (10-37%), state income tax (0-13% depending on state), Social Security (6.2%), and Medicare (1.45%). The effective rate is always lower than your marginal rate due to progressive brackets.
When to Use This Calculator
Use this calculator when planning for a raise or new job, estimating annual tax liability, comparing the tax impact of moving states, or deciding between traditional and Roth contributions.
How This Calculator Works
Enter your income, filing status, state, and deductions. The calculator applies progressive federal brackets, state brackets, and FICA rates to compute total tax liability.
Financial Literacy Basics
Key Concepts
Data Sources & Citations
- OfficialInternal Revenue Service (IRS)
Disclaimer: Calculators and tools on this site are for informational purposes only and do not constitute financial, tax, legal, medical, or investment advice. Results are estimates and may not reflect actual rates or terms. Consult a qualified professional before making decisions. Privacy Policy
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