How Is Overtime Pay Calculated? From Hand Calculation to Automatic

Last updated: 2026-09-07

How Is Overtime Pay Calculated? From Hand Calculation to Automatic

Many people only discover at month-end that their overtime pay does not match their expectations — yet they cannot pinpoint why. Calculating overtime pay really comes down to three steps; the hard part is not the formula, but recording and applying it accurately every single day.

Step 1: Confirm Your Hourly Rate

If you are paid monthly, your hourly rate is usually your monthly salary divided by the legal paid working hours. If your contract specifies a rate, the contract prevails. This is the basis of every later calculation.

Step 2: Find the Overtime Threshold

Most regions treat daily working time beyond a threshold (commonly 8 hours) as the start of overtime, and some also have weekly accumulated-hour rules. Only the time beyond the threshold counts as overtime — not whatever the boss says counts.

Step 3: Apply Tiered Multipliers

Overtime rates are usually tiered: just past the threshold one multiplier applies, beyond a longer duration a higher one, and rest days and public holidays have their own rules. Hand calculating means splitting each segment, multiplying by its multiplier, and summing — which is exactly where mistakes creep in.

Let the App Do All Three Steps

Work Hours Tracker automates all of it:

At month-end, compare the app's overtime totals with your payslip: any discrepancy is immediately visible — no more relying on memory and chat logs.