Overtime Calculator (Time-and-a-Half)

Overtime money looks big on a single paycheck and gets forgotten by next month. This page turns "a few extra shifts" into weekly, yearly, and after-tax numbers you can actually plan with.

The rule in one line

OT rate = base rate × 1.5  •  Weekly OT pay = OT hours × OT rate

Under the federal FLSA, most hourly (non-exempt) employees must be paid 1.5× their regular rate for hours worked over 40 in a single workweek. A few states — California being the typical reported example — also count daily overtime and the 7th consecutive day. Exempt salaried employees are generally not owed overtime at all, which is why the same 50-hour week can pay very differently across two desks.

Examples at common rates

What 5 OT hours per week adds, before tax (40 base hours + 5 OT at 1.5×, 50 weeks/yr)
Base rateOT rateWeekly grossYearly grossExtra/year vs. straight time
$18.00$27.00$855.00$42,750$4,500
$20.00$30.00$950.00$47,000$7,000
$30.00$45.00$1,425.00$70,500$10,500
$40.00$60.00$1,900.00$94,000$14,000

Double-time holidays and shift differentials change these numbers; the calculator's overtime preview uses the plain 5-hours-at-1.5× pattern because it matches how most shift workers describe their week.

Open the calculator with overtime preview

The calculator shows OT income after an estimated tax take (FICA + rough federal), since overtime is taxed at your marginal rate — "an extra $7,000 gross" is closer to "$5,600 in your pocket" at $20/hour.

Reading the preview honestly

Two habits keep OT money from disappearing: bank the overtime checks as a separate "OT account" so a slow season doesn't silently spend them, and expect roughly a fifth of the premium to go to FICA and federal tax rather than your pocket — what an overtime hour nets after taxes is the honest number to plan against. Overtime is the highest-paid hour most hourly workers ever sell — treat it like one. The overtime guide covers the regular-rate rule, which is what makes bonuses and shift differentials change your OT rate.

Related guides

Time-and-a-half, explained

FLSA scope, blended rates, and bonus effects.

$20/hour with OT

Full-year OT scenario.

$30/hour with OT

$70,500 with 5 OT h/week.