Net to Gross Salary Calculator

There’s no neat formula — tax is progressive — so it solves it numerically: it searches for the gross whose net pay equals your target (a bisection root-finder), then confirms it gross-to-net.

Working backwards from take-home

Most calculators go gross → net. This one goes the other way: you say how much you want to keep, and it tells you the gross salary that gets you there. That’s the number that matters in a negotiation or an offer comparison — “I need $X in my account; what salary do I ask for?” The catch is that income tax is progressive, so there’s no single formula to rearrange. Instead it searches: it tries a gross, runs the full take-home calculation, and homes in until the net pay matches your target exactly.

Worked example — want $60,000 take-home a year, single, 2025: Required gross ≈ $73,400. Federal ≈ $7,750, FICA ≈ $5,615 — leaving $60,000 in hand. The gross-up is about $13,400, a factor of roughly 1.22× your take-home.

The gross-up amount and factor

Two numbers sum it up. The gross-up amount is the gap between gross and net — everything withheld for tax (and any deductions) on top of what you keep. The gross-up factor is gross ÷ net: a factor of 1.3 means you need to earn 30% more than you want to take home. The factor climbs as you target a higher take-home, because each extra dollar of net sits in a higher tax bracket and needs more gross to cover it.

Same scope as take-home

This inverts the same engine as the take-home calculator: US federal income tax and FICA computed from the brackets, plus a flat state/local rate you supply, after the standard deduction. Pre-tax deductions like a 401(k) raise the gross needed (the money still comes out of your cheque), while they lower income tax. It’s an estimate, not your exact payslip, and excludes itemised deductions, credits and employer-specific rules — use it to set a target, then confirm with a pay stub.