Tax Refund Calculator
Your paycheck withholding is a guess your employer makes based on your W-4 — not a guarantee it matches what you'll actually owe. This calculator checks that guess against your estimated real liability, so you're not caught off guard at filing season.
Enter your details to see your estimated refund or amount owed.
How to use this calculator
- Enter your annual income and filing status.
- Enter your total federal tax withheld so far (from your pay stubs or W-2).
- Click "Estimate my refund" to see whether you're on track for a refund or may owe money.
How the calculation works
Your estimated tax liability is calculated using the same 2026 progressive federal brackets and standard deduction applied throughout this site. That liability is then compared directly against the total amount already withheld from your paychecks (shown on your W-2, Box 2). If withholding is higher than the estimated liability, the difference is a projected refund; if it's lower, that's a projected amount owed.
A worked example
Say you're single, earned $68,000 this year, and your pay stubs show $7,200 withheld in federal tax so far. Your estimated liability after the standard deduction comes out to roughly $6,050 — meaning you're on track for a refund of about $1,150. If instead only $5,200 had been withheld, you'd be tracking toward owing roughly $850 at filing time, a useful early warning to adjust your W-4 before the gap grows further.
Frequently asked questions
Is a big refund a good thing?
Not necessarily — a large refund means you overpaid throughout the year and gave the government an interest-free loan. Many people prefer to adjust withholding closer to their actual liability.
Does this include state tax refunds?
No, this estimates your federal refund or balance due only.
What if I have other income or deductions?
This uses the standard deduction and doesn't account for credits, itemized deductions, or additional income sources — treat it as a starting estimate.
How do I fix my withholding if the estimate looks off?
Submit a new Form W-4 to your employer — the IRS Tax Withholding Estimator can help you fine-tune the exact allowances or extra withholding amount to enter.
When during the year should I check this?
Mid-year (after a few months of pay stubs) is often ideal — early enough to adjust your W-4 and still meaningfully change the outcome, but with enough real withholding data to make the estimate useful.