Free Tool

Tax Refund Estimator

Estimate your 2025 federal tax refund or amount owed in minutes. Works for W-2 employees, freelancers, and anyone with self-employment income.

Income
Enter all sources of income for the year
$

Box 1 of your W-2

$

Schedule C net profit (after expenses)

$

Interest, dividends, capital gains, etc.

Deductions & Credits

$2,000 Child Tax Credit per qualifying child under 17

Tax Payments Already Made
$

Box 2 of your W-2 (total from all W-2s)

$

Quarterly estimated payments (Form 1040-ES) already sent to IRS

Enter your income to see results

Your estimated refund or amount owed will appear here.

How This Tax Refund Estimator Works

This calculator estimates your federal tax liability for the 2025 tax year using the IRS tax brackets from Rev. Proc. 2024-40. It accounts for W-2 wages, self-employment income, the self-employment tax deduction, standard or itemized deductions, and the child tax credit.

Your estimated refund (or amount owed) is simply the difference between what you have already paid through withholding and estimated payments versus your total calculated tax liability.

2025 Standard Deductions

Filing StatusStandard Deduction
Single$15,750
Married Filing Jointly$31,500
Married Filing Separately$15,750
Head of Household$23,625

Understanding Your Results

  1. Effective tax rate is your total tax divided by total income. It reflects the actual percentage of your income that goes to federal taxes.
  2. Marginal tax rate is the rate on your last dollar of taxable income. Additional income will be taxed at this rate.
  3. Self-employment tax is separate from income tax. If you have Schedule C income, you owe 15.3% (Social Security + Medicare) on 92.35% of net profit. Half of this is deductible.
  4. Child Tax Credit provides up to $2,000 per qualifying child under 17. It phases out at $200,000 AGI (single) or $400,000 (married filing jointly).

Want WriteOff to Track This Automatically?

WriteOff tracks your income and expenses in real time, estimates your taxes quarterly, and helps you find every deduction you qualify for.

Disclaimer

Federal estimates only. State taxes are not included.

This calculator provides estimates based on 2025 IRS tax rates and rules. It is for informational purposes only and does not constitute tax advice. It does not cover AMT, NIIT, state taxes, or all credits. Consult a qualified tax professional for your specific situation.