Overtime or another employee: compare cost and usable capacity

A cost comparison is useful only if both options can deliver the required work. Extra paid hours do not guarantee matching skills, equipment, availability or productive time.

Establish the monthly gap

Suppose confirmed work requires 80 productive hours beyond current capacity. Existing employees can supply those hours at an incremental cost of 45 per hour. An additional employee would cost 4,000 per month and provide 120 usable delivery hours after non-delivery time. These are hypothetical costs, not pay-rate guidance.

Overtime costs 80 × 45 = 3,600. On recurring cost alone it is 400 cheaper than hiring. Use the overtime versus extra staff calculator with 80 hours, 45 overtime cost and 4,000 staff cost to reproduce the −400 difference.

Find the crossover, then check feasibility

The cost crossover is 4,000 ÷ 45 = 88.89 hours. At 100 required hours, overtime costs 4,500 and hiring costs 4,000. That comparison works only if the employee’s usable hours fit the actual jobs and the current team can realistically supply 100 extra hours.

At 140 hours, a 120-hour employee does not cover the full gap. One possible combination is 4,000 for the employee plus 20 × 45 = 900 overtime, or 4,900. All-overtime costs 6,300 if feasible. If overtime is unavailable or inappropriate, neither that comparison nor its apparent saving describes an executable plan.

Include one-off costs and timing

Suppose recruitment and setup cost 1,200. Over three months at 100 extra hours monthly, hiring costs 3 × 4,000 + 1,200 = 13,200; overtime costs 13,500. The three-month difference is only 300. Over one month, hiring costs 5,200 versus 4,500 overtime.

If onboarding reduces the first month’s useful capacity to 80 hours, another 20 hours are needed. At 45 per hour that adds 900, making the three-month hiring scenario 14,100. A comparison that ignored the ramp-up would have suggested the opposite result.

Record what the calculator leaves out

Check schedule coverage, supervision time, service quality, fatigue, equipment and how long demand is likely to last. The official hiring guide covers workforce needs and employment costs; use the rules relevant to your location for actual payroll obligations. A mathematical crossover is not permission to schedule any particular overtime pattern.

Make the decision with low, expected and high workload cases. Revisit the billable-hours guide to ensure usable hours are not being confused with paid hours, and compare the forecast with actual delivery after the first month.

Method and scope

All amounts above are hypothetical teaching figures in one currency, excluding tax unless stated otherwise. These are original scenarios, not market prices, benchmark targets or professional recommendations. The references support the underlying concepts, not the example assumptions. This AI-assisted explanation has not had independent professional review. Calculation methods and limitations.