This post is also available in: Bahasa Malaysia

In Malaysia, Potongan Cukai Bulanan (PCB) or Monthly Tax Deduction is a system where employers deduct monthly income tax from their employees’ salaries and remit it to LHDN (Inland Revenue Board of Malaysia).

potongan cukai bulanan

Overview of the Formula

PCB is generally calculated as:

PCB formula

But to get to this point, you need to compute Chargeable Income first, which is done in multiple steps.

Step-by-Step Manual Calculation

Step 1: Determine Gross Monthly Income

This includes:

  • Basic salary
  • Overtime
  • Bonus
  • Commission
  • Allowances (taxable ones)
  • Benefits-in-kind
  • Perquisites

Exclude non-taxable benefits like travel allowances (up to a limit), EPF employer contributions (up to a limit), or medical benefits.

Step 2: Deduct Approved Monthly Tax Reliefs and Deductions

These include:

ItemDescriptionMax Limit (Annual)
EPF ContributionUp to RM4,000/yearRM333.33/month
SOCSO & EISFull amountVaries
Life Insurance (if not claimed under EPF)RM3,000/yearRM250/month
ZakatFull rebateableActual paid
Personal ReliefRM9,000/yearRM750/month
Spouse ReliefRM4,000/year (if applicable)RM333.33/month
Child ReliefRM2,000–RM6,000/year per childRM166.67–RM500/month
OthersEducation fees, medical expenses, etc.Varies

Step 3: Compute Chargeable Income

Chargeable Income=Gross Income−Approved Reliefs

Step 4: Apply Tax Rates on Chargeable Income

Malaysia has a progressive income tax rate, for example (as of YA2024):

Chargeable Income (RM)Tax Rate (%)
0 – 5,0000%
5,001 – 20,0001%
20,001 – 35,0003%
35,001 – 50,0006%
50,001 – 70,00011%
70,001 – 100,00019%

You can view the list provided by LHDN here Tax Rate.

The monthly tax is worked out based on how much the employee has earned in total so far this year, with higher earnings taxed at higher rates.

Step 5: Deduct Rebates

  • Zakat (if not already deducted in Step 2)
  • Tax Rebates (e.g. RM400 for individuals with income under RM35,000)

Step 6: Divide Annual Tax by 12

This gives you the monthly PCB amount.

Monthly PCB formula

Example Calculation

Assume:

  • Monthly gross salary: RM5,000
  • EPF (11%): RM550
  • SOCSO & EIS: RM50
  • No spouse, no children
  • No additional deductions

Step 1: Gross Income = RM5,000/month → RM60,000/year
Step 2: Deductions:

  • EPF: RM6,600
  • SOCSO + EIS: RM600
  • Personal Relief: RM9,000

Total Reliefs = RM16,200
Step 3: Chargeable Income = RM60,000 – RM16,200 = RM43,800

Step 4: Tax Computation:

Chargeable IncomeRate %Tax
0–5,0000%RM0.00
5,001–20,0001%RM150.00
20,001–35,0003%RM450.00
35,001–43,8006%RM528.00
Total TaxRM1,128.00

Step 5: No rebates
Step 6: Monthly PCB = RM1,128 ÷ 12 = RM94.00

Summary of Key Elements

ElementDescription
Gross IncomeTotal monthly income before deductions
ReliefsTax reliefs including EPF, SOCSO, personal, spouse, children
Chargeable IncomeIncome subject to tax after reliefs
Tax RateBased on LHDN’s progressive rates
RebatesDirect deduction from tax (zakat, RM400 rebate, etc.)
Monthly PCBFinal monthly deduction after all calculations

Tools You Can Use

This article is intended for general informational purposes only. While every effort has been made to ensure its accuracy, we do not guarantee that the information is free from errors or omissions. Users are encouraged to verify any important details independently and should not rely solely on the information provided.