Pro-Rated Annual Leave Calculator

Calculates leave earned for part of a year. MOM rounds fractions below half a day down and half a day or more up to a full day.

Result

Leave earned
8 days
Exact pro-rated value
8.1667 days

How to use the pro-rated annual leave calculator

  1. Enter the full-year leave entitlement (days).
  2. Enter the completed months of service this year.
  3. The results update as you type, or press Calculate.
  4. Read the leave earned first, then the supporting figures below it.

Formula

Pro-rated leave = (completed months ÷ 12) × full-year entitlement.

Worked example

For example, with these inputs:

the calculator returns:

Background

Contribution rates fall as workers get older, to keep older workers employable while their retirement savings continue to grow. The Government has been raising rates for workers above 55 in stages since 2022, with the latest change in January 2026 and another planned for 2027, so figures for senior workers change more often than for younger employees.

The Employment Act sets out how hourly and daily rates are calculated for overtime, public holiday work and salary deductions. These formulas use the monthly basic rate of pay rather than gross salary, which is why the numbers can look lower than a simple division of your salary by hours worked.

Frequently asked questions

How does the pro-rated annual leave calculator work?

It applies this formula: Pro-rated leave = (completed months ÷ 12) × full-year entitlement.

Are these figures exact?

They follow the published CPF and MOM formulas, but your employer's payroll may round slightly differently or include allowances in a different way. Your payslip is the final reference.

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