Tax Refund Estimator — Free Online Tool
Will you get a refund or owe the IRS? This tax refund estimator applies 2025 federal brackets and the standard deduction to your income, then compares the result with what was already withheld.
What is the Tax Refund Estimator?
A 'refund' isn't a bonus — it's the IRS returning your own money that was over-withheld from your paychecks. The calculation is straightforward: figure your tax on taxable income (after the standard deduction — $15,000 single / $30,000 married filing jointly for 2025), then subtract what you already paid through withholding.
Two things surprise people. First, moving into a higher bracket never taxes all your income at the higher rate — only the dollars above the threshold are taxed at that rate (that's how marginal brackets work). Second, a big refund means you gave the government an interest-free loan all year; adjusting your W-4 could put that money in each paycheck instead.
How to use this calculator
- Enter your annual income.
- Enter federal tax already withheld (from pay stubs or your W-2).
- Choose your filing status.
- Click Estimate Refund.
Formula
Frequently asked questions
Is a big tax refund actually good?
Not really — it means too much was withheld and you lent the IRS money interest-free all year. A small refund (or small balance due) means your withholding was accurate.
How do tax brackets actually work?
Marginally: only income above each threshold is taxed at the higher rate. Earning $1 into the 22% bracket doesn't tax your whole income at 22%.
Does this tax refund estimator include state taxes?
No — it estimates federal tax only, using the standard deduction. State taxes, credits, and itemized deductions aren't included.
What is the standard deduction for 2025?
$15,000 for single filers and $30,000 for married filing jointly — the figures this estimate uses.