Free Tools
Pro-Rata Wage Calculator
Compute pro-rata pay for an employee who joins or resigns mid-month, by working days or calendar days. Free.
Note
The pro-rata method should follow the work agreement or company rule. Some use a working-day basis, others calendar days. An estimate, not official tax/legal advice. Rules can change — consult a tax advisor or HR/labor-law professional.
Pro-rata wage
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Understanding pro-rata wages
Pro-rata for mid-month join/resign
An employee working less than a full month is paid proportionally to actual days worked. Pro-rata wage = monthly salary × (actual days ÷ total days in month).
Working-day vs calendar basis
Some companies divide by WORKING days (e.g. 22), others by CALENDAR days (30/31). Different methods yield different figures.
Follow the work agreement
The pro-rata method should follow the work agreement or company rule to stay consistent and fair for both sides.
FAQ
Frequently asked questions
How do I calculate a pro-rata wage?
Pro-rata wage = monthly salary × (actual working days ÷ total days in month). E.g. Rp6M salary, worked 10 of 22 working days → Rp6M × 10/22 ≈ Rp2,727,273.
Working days or calendar days?
It depends on company policy. A working-day basis (e.g. 22) is common for monthly staff; a calendar basis (30/31) is also used. Pick the method matching your work agreement.
Are allowances also pro-rated?
Fixed allowances generally are pro-rated with basic salary, while attendance-based allowances (e.g. meal money) follow days present. Details follow company policy.
What about an employee resigning mid-month?
Same: count actual working days up to the last date, then pro-rate the monthly salary. This calculator uses the actual days and the divisor you set.
Does pro-rata affect BPJS and tax?
BPJS and PPh 21 are generally computed from wages paid that month. Since the pro-rata wage is smaller, deductions adjust accordingly. Consult payroll for details.
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