About the Tax Refund Calculator
This tax refund estimator compares the federal income tax you will owe for the 2026 tax year with what you have already paid through paycheck withholding and estimated payments. If you paid more than your tax, the difference is your refund; if you paid less, it shows how much you will owe when you file in 2027.
Enter your wages from Form W-2 (box 1), any other taxable income, the federal tax withheld (box 2), and your deductions and qualifying children. The calculator applies the 2026 standard deduction and brackets, the $2,200-per-child Child Tax Credit with its phase-out, and the refundable Additional Child Tax Credit of up to $1,700 per child.
It is ideal for a mid-year check-up: if the result is a large refund you could adjust your W-4 to take home more each paycheck; if you will owe, you have time to increase withholding. Figures come from IRS Rev. Proc. 2025-32 (2026 inflation adjustments, including the One Big Beautiful Bill Act changes). Not modelled: capital gains rates, self-employment tax, the Earned Income Tax Credit, education credits, the new tips, overtime, senior and car-loan-interest deductions, and state taxes — subtract those deductions from other income, or add other credits in the credits field.
With the default inputs, the estimated refund (negative = amount owed) is $1,330.00. Change any value above to recalculate instantly.
How to use the tax refund calculator
- 1Choose your filing status and enter your wages from box 1 of your W-2.
- 2Add other taxable income such as interest or side-business profit.
- 3Enter federal tax withheld and any estimated payments already made.
- 4Enter itemized deductions if they beat the standard deduction, and your number of children under 17.
- 5Read your estimated refund or balance due, then adjust your W-4 if needed.
Formula and method
Adjusted gross income is wages plus other taxable income. Subtracting the larger of the 2026 standard deduction or your itemized deductions gives taxable income, which is run through the 2026 federal brackets.
The Child Tax Credit is $2,200 per child under 17, reduced by $50 for each $1,000 (or part) of income above $200,000 ($400,000 joint). It first reduces your tax to zero; any unused part can be refunded as the Additional Child Tax Credit, up to $1,700 per child and 15% of earned income above $2,500. Other credits you enter are treated as non-refundable. Whatever you have paid beyond your final tax is refunded.
- Tax
- 2026 federal income tax on taxable income
- Refundable credits
- Additional Child Tax Credit (up to $1,700 per child)
- Refund < 0
- Balance due when you file
Worked examples
Single, $75,000 salary, $9,000 withheld
After the $16,100 standard deduction, taxable income is $58,900 and tax is $7,670. Having $9,000 withheld means a refund of about $1,330.
Married couple, $110,000, two kids, $6,500 withheld
Joint taxable income is $77,800, giving $8,840 of tax. Two children cut that by $4,400 to $4,440. With $6,500 withheld, the couple should get back about $2,060.
Under-withheld freelancer side income
Adding $25,000 of side income with no withholding raises tax to $9,870 on $68,900 of taxable income. With only $6,000 withheld, about $3,870 is due at filing (self-employment tax on the side income would be extra).
Frequently asked questions
How is my tax refund calculated?+
Your refund is the total you paid during the year — withholding, estimated payments and refundable credits — minus your final tax after non-refundable credits. If the result is negative, you owe that amount.
When will I get my 2026 tax refund?+
The IRS issues most refunds within 21 days of accepting an e-filed return with direct deposit. By law, refunds on returns claiming the EITC or the Additional Child Tax Credit cannot be issued before mid-February.
Is a big tax refund a good thing?+
It means you overpaid during the year, effectively lending money to the government at no interest. Many people prefer to adjust their W-4 so more of that money arrives in each paycheck instead.
Why is my refund smaller than last year?+
Common reasons are a raise or bonus that pushed income higher, less withholding after a W-4 change, a second job, side income with no withholding, or losing a credit such as a child aging out of the Child Tax Credit.
How much is the Child Tax Credit for 2026?+
It is $2,200 per qualifying child under 17, with up to $1,700 per child refundable. It phases out by $50 for every $1,000 of income above $200,000, or $400,000 for married couples filing jointly.
Tax results are estimates based on published rules and simplified assumptions. They are not tax advice — check official guidance or a tax professional for your situation.