Overtime Pay Calculator

Formula and inputs

Overtime earnings are overtime hours times the regular rate times the applicable multiplier, commonly 1.5 for hours past 40 in a week under federal rules. Annual income with overtime is base wages plus expected annual overtime earnings; enter that total as the salary input and the calculator estimates withholding and net pay per period at your chosen frequency.

Example scenario

Steady production overtime

A machine operator earns $20 an hour, $41,600 at full time, and reliably works six overtime hours weekly at time-and-a-half: $180 extra per week, about $9,360 a year. Combined annual pay is $50,960, paid weekly, filing single.

• -Base annual wages: $41,600 ($20/hr x 2,080)
• -Overtime: 6 hrs/week x $30 = $9,360/year
• -Combined annual input: $50,960
• -Pay frequency: Weekly, filing single

Weekly gross rises from $800 to $980, and the estimate shows the after-withholding gain. The overtime nets less than its gross, like all income, but at the same underlying tax treatment; the heavier in-paycheck withholding on spike weeks is timing, not a higher tax rate on overtime itself.

Common mistakes

• -Believing overtime is taxed at a special higher rate instead of understanding withholding-table timing.
• -Computing the premium on the wrong base when bonuses or shift differentials are part of the regular rate.
• -Budgeting recurring overtime as temporary, hiding what is structurally a staffing gap.

How to interpret the output

• -If overtime is constant for months, compare its fully loaded cost against an additional hire; chronic overtime is often a staffing decision wearing a scheduling costume.
• -Workers comparing spike paychecks to normal ones should look at the effective withholding rate, not the dollar withheld, to see what is really happening.
• -Daily-overtime states and union agreements change the multiplier math; apply the rules for where the work happens.

Related tools

Related articles