Tax Refund Calculator

Filing Status here is a plain coded number -- 1 for single, 2 for married, 3 for head of household -- not a true bracket selector for every value. Only filingStatus = 1 (single) routes through the real 2026 progressive brackets; codes 2 and 3 both use a flat 15% of taxable income as a rough stand-in, so switching between married and head of household produces no difference at all, and switching away from single changes Tax Owed by however far 15% sits from your actual bracket-based rate.

No. State Refund is set directly equal to whatever you enter for State Tax Withheld -- the engine doesn't compute an actual state tax liability or apply any state bracket table. It's a placeholder that assumes 100% of state withholding comes back as a refund, which will overstate your refund for any state where you actually owe tax.

Both move it by a similar amount at the default inputs, since Federal Refund is Federal Tax Withheld minus Tax Owed and Tax Owed itself scales with income -- but Federal Tax Withheld edges out Annual Income as the larger lever because it's a direct term in the subtraction, while income's effect is filtered through the tax calculation first.

Total Deductions subtracts directly from Annual Income to produce Taxable Income (floored at zero), so every additional dollar of deductions is a dollar less of income that gets taxed. The default here is pre-filled to the 2026 single-filer standard deduction, so raising it only helps if your real itemized deductions exceed that amount.