The short answer
Yes, overtime can affect your PCB — because overtime pay is taxable employment income, and a large overtime month still raises projected annual income and PCB. Overtime is normal remuneration, not additional remuneration, so it is annualised differently from a bonus. A bonus is treated as additional remuneration and its whole extra tax lands in the bonus month; overtime is annualised with your ordinary pay instead. Either way, more pay in the month can mean more PCB in that month — but the exact figure depends on your year-to-date pay, reliefs and the computerised formula, and it cannot be read off the overtime hours alone.
How overtime pay is estimated
For monthly-rated employees, the site uses an illustrative hourly rate: monthly salary ÷ 26 ÷ normal hours per day. Regular-day overtime at 1.5× is modelled. The 2× and 3× choices are illustrative multipliers, not complete rest-day or holiday legal-pay calculations — those require distinct statutory rules. Staff above RM4,000 may not be legally entitled to overtime pay unless covered by an exception, so check your eligibility with the official JTKSM guidance before assuming overtime is due.
Why PCB can rise in a heavy overtime month
Monthly PCB is worked out on annualised income, qualifying deductions, prior payments and other permitted adjustments. When a month carries a lot of overtime, the projected annual income behind the calculation rises, and the monthly deduction can rise with it. This is different from the bonus pattern: a bonus is additional remuneration, so the whole difference between the two annual tax figures is charged in the bonus month. In the site’s published bonus example, a worker on RM6,000 a month has normal PCB of RM207.50 a month; with a RM6,000 bonus, annual tax rises from RM2,490 to RM3,150, and the RM660 difference is charged in the bonus month on top of the normal RM207.50 — so that month’s total PCB is RM867.50. Overtime does not work that way; it is annualised as normal remuneration. The next month, with no bonus, PCB falls back to normal — and the same applies once a heavy overtime month passes.
What the site does not cover
The overtime calculator estimates gross overtime pay only. It does not compute PCB, EPF, SOCSO or EIS on overtime. The SOCSO and EIS treatment of variable pay is not covered by the site’s tools — this guide does not guess it. Check it against the official PERKESO definitions and applicable schedules rather than assuming it from the EPF result. For bonuses, the published position is that SOCSO and EIS are excluded; do not carry that bonus rule across to overtime without checking the official schedules. If a payslip figure surprises you, ask payroll which official table or formula was used — your payslip is authoritative.
How to check an overtime payslip
- Separate basic salary, allowances, overtime and bonus items on the payslip — each is treated differently.
- Check whether the PCB figure takes your year-to-date payroll information into account.
- Compare net pay against gross pay less the actual employee deductions.
- Use the site’s PCB calculator and LHDN’s official calculator for a personal figure, and confirm overtime eligibility with JTKSM.
FAQ — Does Overtime Affect Your PCB
Q: Is overtime pay taxable?
A: Yes. Overtime pay is part of your employment income, so it counts toward the annualised income behind your monthly PCB. A large overtime month can therefore raise that month’s PCB.
Q: Does overtime spike PCB the same way a bonus does?
A: No. Overtime is normal remuneration, not additional remuneration, so it is annualised differently. A bonus is additional remuneration — the whole extra tax lands in the bonus month, which is why the spike looks so large.
Q: Does the overtime calculator work out PCB on my overtime?
A: No. It estimates gross overtime pay only. It does not compute PCB, EPF, SOCSO or EIS on overtime.
Q: Is SOCSO charged on overtime?
A: The site’s tools do not cover the SOCSO and EIS treatment of variable pay, and this guide does not guess it. Check the official PERKESO definitions and schedules, and ask your payroll team.
Q: I earn above RM4,000 a month — am I entitled to overtime pay?
A: Staff above RM4,000 may not be legally entitled to overtime pay unless covered by an exception. Check your eligibility against the official JTKSM guidance.
Q: How is the overtime hourly rate worked out?
A: For monthly-rated employees, the illustrative hourly rate is monthly salary ÷ 26 ÷ normal hours per day. Regular-day overtime is modelled at 1.5×; the 2× and 3× choices are illustrative multipliers only.
Sources: PCBCalc.my overtime calculator scope notes (illustrative hourly rate, 1.5× regular-day modelling, RM4,000 eligibility note); why PCB spikes in bonus month (overtime as normal remuneration; RM6,000 bonus example); bonus PCB explained (SOCSO and EIS treatment to be checked against official definitions). This guide is an independent estimate aid, not an official LHDN publication and not tax advice. Check your figure with LHDN’s official calculator (calcpcbplus.hasil.gov.my) and your payslip.
Primary official source / Sumber rasmi / 官方来源
LHDN — PCB specifications and 2026 testing questions · PERKESO — SOCSO/EIS contributions
Related tools and guides
Overtime calculator · Bonus PCB explained · Why PCB spikes in bonus month · PCB tax bracket table 2026 · PCB vs EPF vs SOCSO vs EIS