How PCB Schedule Affects Your Salary in Malaysia

The PCB (Monthly Tax Deduction) on your salary is calculated using one of two methods, which can result in different amounts being deducted from your payslip:

**Computerised PCB Calculation:** This method uses the Kaunter PCB system provided by LHDN. It calculates PCB based on your actual cumulative income and deductions for the year, then divides the remaining tax by the remaining months. This method is more accurate and responsive to changes in income and reliefs. Most larger companies use this method.

**Manual PCB Calculation:** This method uses the printed PCB schedule tables from LHDN. Your employer looks up your monthly salary in the table to find the fixed monthly deduction amount. While simpler, it does not account for changes mid-year, bonuses, or specific relief claims. Some smaller employers still use this method.

The method your employer uses can affect how much PCB is deducted each month. Under the manual method, your PCB is the same fixed amount every month. Under the computerised method, it may fluctuate based on bonuses, additional income, and cumulative relief claims.

The computerised PCB method tracks your income and deductions throughout the year:

**Step 1:** Add up all your income year-to-date, including salary, bonuses, commissions, and other taxable compensation.

**Step 2:** Calculate cumulative EPF deductions for the year so far. This reduces your taxable income.

**Step 3:** Determine cumulative taxable income by subtracting EPF and approved deductions from cumulative income.

**Step 4:** Apply the progressive tax brackets to calculate total annual tax liability on year-to-date taxable income.

**Step 5:** Subtract all PCB payments already made in previous months from the year.

**Step 6:** Divide the remaining tax by the number of months left in the year to get this month's PCB deduction.

This method automatically adjusts for bonuses and income changes. For example, if you receive a RM10,000 bonus in March, the system recalculates your remaining tax and spreads it over the remaining 9 months. Your PCB increases temporarily but smooths out over time. Without the computerised method, a bonus month might show an unexpectedly large PCB deduction while subsequent months remain unchanged.

Your PCB deduction depends on your tax category, determined by marital status and number of dependent children. There are several categories:

**Category 01:** Single, no children. Default for new employees who have not submitted tax details. PCB tends to be higher.

**Category 02:** Married with one child.

**Category 03:** Married with two children.

**Category 04:** Married with three or more children.

Using an outdated category is one of the most common causes of incorrect PCB. If you get married or have a child, update your category with HR immediately. Otherwise, you may be over-deducted (entitled to a larger refund at tax filing time) or under-deducted (owing additional tax).

**Example of category impact:** An employee earning RM5,000 gross in Category 01 (single) pays approximately RM227/month in PCB. The same employee in Category 04 (married, 3 children) might pay only RM100-150/month because the additional child reliefs reduce taxable income significantly. The difference of RM77-127 per month adds up to RM924-1,524 per year.

If your employer uses the computerised method, you can also submit details about specific tax reliefs you plan to claim (lifestyle, education, medical expenses) for even more accurate monthly PCB calculations.

If your monthly PCB deduction seems too high or too low, take these steps:

**1. Verify your tax category** with HR. Ensure it matches your current marital status and number of children.

**2. Review your relief claims.** Some employers only use standard category reliefs and do not factor in lifestyle, medical, or education reliefs.

**3. Track your cumulative PCB.** Keep a running total and compare with estimated annual tax. This tells you whether you will receive a refund or owe additional tax at year-end.

**4. File your tax return to reconcile.** The BE form is where everything is finalised. LHDN calculates your actual tax, subtracts total PCB paid, and issues a refund or requests payment.

**5. Request a PCB adjustment.** If significantly off, speak to HR or submit Form CP22 to LHDN to reduce future PCB deductions.

Remember: PCB is your own money being held by the government. Overpayment is refunded (typically within 30 working days of filing). Underpayment may incur a 10% penalty on the balance owed.