Work & pay

Gross Overtime Pay Calculator

Calculate overtime pay and add any regular gross pay for the same period. Supply the multiplier from your agreement; the tool does not determine eligibility or net payroll deductions.

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Your numbers

€/hour
€
Your figures stay on this device.

How the calculation works

Overtime pay is calculated from eligible hours, a basic hourly rate and the total multiplier agreed for those hours. Regular gross pay can be added separately to show the combined gross amount for the same pay period.

Overtime pay = eligible overtime hours × basic hourly rate × agreed premium multiplier.
  1. Apply the premium to the rate

    Multiply the basic hourly amount by the agreed multiplier. The calculation does not select a statutory or sector-specific premium.

  2. Pay the eligible overtime hours

    Multiply that resulting hourly amount by the overtime quantity. Fractional hours are allowed and should be entered as decimal hours.

  3. Add ordinary period pay

    Combine overtime with the separate regular gross amount. The overtime result stays visible so the total can be reconciled with its two components.

Worked example: Time and a half

Sample inputs demonstrate the method. They are not a forecast or product offer.

The first example uses €20 per hour, eight overtime hours and a multiplier of 1.5. The overtime hourly rate is €30, and eight hours produce €240 gross overtime. Regular pay is zero, so total period pay is also €240.

Basic hourly rate (€/hour)
20
Overtime hours
8
Overtime pay multiplier
1.5
Regular gross pay for the period (€)
0

Expected result

Gross overtime pay
€240.00
Worked example: Double time

Sample inputs demonstrate the method. They are not a forecast or product offer.

Basic hourly rate (€/hour)
15
Overtime hours
4
Overtime pay multiplier
2
Regular gross pay for the period (€)
600

Expected result

Gross overtime pay
€120.00

Understanding your result

Gross overtime pay is the compensation for the supplied overtime hours before deductions. Total gross period pay includes the separately entered ordinary amount.

This arithmetic does not determine which hours qualify, whether compensatory leave applies, or how normal remuneration should be defined. Those are inputs to settle before using the calculation.

Questions you might have

What does this overtime pay calculator include?

Estimate gross overtime pay from eligible overtime hours, your hourly rate and the premium in your agreement.

Which assumptions should I check?

The premium is contractual; no universal Irish overtime multiplier is assumed. Net tax, eligibility and normal-remuneration rules are not determined here.

Choosing the right inputs

Basic hourly rate
Enter the underlying hourly rate before the overtime multiplier. A rate already increased for overtime would apply the premium twice.
Overtime pay multiplier
Use the full payment multiplier: 1.5 means time and a half, not an extra 1.5 on top of basic pay.
Regular gross pay for the period
Enter regular gross pay for the matching period, excluding overtime already being calculated here. Zero is appropriate when only the overtime amount is needed.

Common mistakes to avoid

  • Do not add overtime into regular pay and then calculate it again here.
  • Payroll tax is not applied; a gross premium cannot be read as the same percentage improvement in take-home pay.

Assumptions to check

  • The premium is contractual; no universal Irish overtime multiplier is assumed. Net tax, eligibility and normal-remuneration rules are not determined here.

Sources and method

Read our calculation and testing approach.