TaxRefundCalc: Refund & W-4

Find out whether you are heading for a federal tax refund or a bill, then adjust your paycheck withholding so the year ends the way you want. Made for U.S. federal income tax, tax year 2026.

Key features
• Choose your filing status: single, married filing jointly or separately, head of household or qualifying surviving spouse
• Enter wages, other income, adjustments, standard or itemized deductions, children and other dependents, credits, tax withheld and estimated payments
• See taxable income, tax from the 2026 rate table, child tax credits, total tax and your estimated refund or amount owed, with your marginal and effective rates
• W-4 tool: enter your pay frequency, wages and tax withheld so far, paychecks remaining and the refund you want
• Get the extra amount to withhold per paycheck for Form W-4 Step 4(c), or how much less you could withhold
• Typical examples for common situations
• Save up to 20 scenarios and share a result as text

A simplified estimate of federal income tax for tax year 2026. It leaves out state and local tax, self-employment tax, alternative minimum tax, capital gains rates and the earned income credit, and the child credits assume each child has a valid Social Security number. Results are estimates, not tax advice.

Sources (U.S. government, irs.gov):
• Revenue Procedure 2025-32 (2026 inflation adjustments): https://www.irs.gov/pub/irs-drop/rp-25-32.pdf
• News release IR-2025-103 (2026 tax figures): https://www.irs.gov/newsroom/irs-releases-tax-inflation-adjustments-for-tax-year-2026-including-amendments-from-the-one-big-beautiful-bill
• Instructions for Schedule 8812 (child tax credit): https://www.irs.gov/instructions/i1040s8
• Form W-4 (2026): https://www.irs.gov/pub/irs-pdf/fw4.pdf
Not affiliated with or endorsed by the IRS or any government agency.