Assumptions
- Total working days exclude rest days and non-working days, but include public holidays.
- Days actually worked can include paid leave and public holidays when the employee is entitled.
- The calculator accepts half-days as decimals.
Incomplete Month Salary Calculator Singapore
Calculate pro-rated salary for a Singapore incomplete month, including joiners, leavers, no-pay leave, and unpaid leave.
Calculate pro-rated salary
Work out how much to pay when a monthly-rated employee did not work the full month.
How incomplete month salary is calculated
MOM defines incomplete month pay for monthly-rated employees as monthly gross rate of pay divided by the total working days in that month, multiplied by days actually worked. No-pay leave is treated as an incomplete month calculation.
Source dateMOM monthly and daily salary page last updated 8 December 2025.MOM monthly and daily salary
What this does not cover
- Does not decide whether a specific absence counts as paid or unpaid.
- Does not calculate CPF on the prorated salary. Use the CPF calculator after this step.
Worked examples
Mid-month joiner
S$4,000 salary, 22 working days, 15 worked days gives S$2,727.27.
No-pay leave
Count paid days actually worked and exclude approved unpaid leave days.
Half-day case
Use 0.5 for a half-day when the employee worked 5 hours or less.
Incomplete Month Salary Calculator Singapore FAQs
Is incomplete month the same as pro-rated salary?
In everyday payroll language, yes. MOM uses incomplete month of work for joiners, leavers, no-pay leave, and reservist cases.
Should public holidays be counted?
MOM says total working days include public holidays and exclude rest days and non-working days.
Does this calculate salary in lieu of notice?
No. Use the notice period calculator and salary guidance for notice-related cases.