PCB Tax Explained: How Monthly Tax Deductions Work in Malaysia (2025)
A complete guide to Potongan Cukai Bulanan (PCB) in Malaysia. Learn how monthly tax deductions are calculated, progressive tax rates, tax reliefs, and how to estimate your take-home pay after PCB.
Introduction: What is PCB (Potongan Cukai Bulanan)?
PCB stands for Potongan Cukai Bulanan — Malaysia's Monthly Tax Deduction system. It's a pay-as-you-earn (PAYE) mechanism where your employer withholds an estimated portion of your annual income tax from your monthly salary and remits it directly to LHDN (Lembaga Hasil Dalam Negeri, the Inland Revenue Board).
Instead of paying a large lump sum at the end of the year, PCB spreads your tax liability across 12 monthly payments. This makes tax payments more manageable and ensures the government has a steady revenue stream.
How is PCB Calculated?
Step 1: Determine Gross Annual Income
Start with your total annual earnings:
- Base salary × 12
- Fixed monthly allowances (travel, housing)
- Expected bonuses and commissions
- Any other recurring income from employment
Step 2: Subtract Allowable Reliefs
LHDN provides various tax reliefs that reduce your chargeable income:
| Relief Category | Maximum Amount |
|---|---|
| Individual (personal) | RM9,000 |
| EPF contributions | RM4,000 |
| Life insurance + EPF (combined) | RM7,000 |
| Medical insurance | RM3,000 |
| Education fees (self) | RM7,000 |
| SSPN (education savings) | RM8,000 |
| Lifestyle expenses | RM2,500 |
| Medical expenses for parents | RM8,000 |
| Disabled spouse | RM5,000 |
| Breastfeeding equipment | RM1,000 |
| Childcare fees | RM3,000 |
Step 3: Apply Progressive Tax Rates
After subtracting reliefs, you get your chargeable income. Malaysia uses progressive tax rates:
| Chargeable Income (Annual) | Tax Rate | Cumulative Tax |
|---|---|---|
| RM0 – RM5,000 | 0% | RM0 |
| RM5,001 – RM20,000 | 1% | RM150 |
| RM20,001 – RM35,000 | 3% | RM600 |
| RM35,001 – RM50,000 | 6% | RM1,500 |
| RM50,001 – RM70,000 | 11% | RM3,700 |
| RM70,001 – RM100,000 | 19% | RM9,400 |
| RM100,001 – RM400,000 | 25% | RM84,400 |
| RM400,001 – RM600,000 | 26% | RM136,400 |
| RM600,001 – RM2,000,000 | 28% | RM528,400 |
| Above RM2,000,000 | 30% | — |
Key point: The rates are progressive — you don't pay the top rate on all your income. You pay different rates on different portions of your income.
Step 4: Divide by 12
The annual tax amount is divided by 12 to determine your monthly PCB deduction.
Worked Example: RM5,800 Monthly Salary
Let's walk through a complete PCB calculation:
Employee profile:
- Monthly salary: RM5,800
- Monthly allowance: RM200
- No bonus
- Age 30, single
Step 1 — Gross Annual Income: RM6,000 × 12 = RM72,000
Step 2 — Reliefs:
- EPF relief: RM6,000 × 11% × 12 = RM7,920 → capped at RM4,000
- Personal relief: RM9,000
- Total reliefs: RM13,000
Step 3 — Chargeable Income: RM72,000 − RM13,000 = RM59,000
Step 4 — Progressive Tax:
- First RM5,000 @ 0%: RM0
- Next RM15,000 @ 1%: RM150
- Next RM15,000 @ 3%: RM450
- Next RM15,000 @ 6%: RM900
- Remaining RM9,000 @ 11%: RM990
- Total annual tax: RM2,490
Step 5 — Monthly PCB: RM2,490 ÷ 12 = RM207.50/month
Result: Net monthly salary after PCB = RM6,000 − RM207.50 = RM5,792.50
Common PCB Mistakes and Misconceptions
"PCB is an extra tax"
False. PCB is not an additional tax — it's an advance payment toward your annual income tax. At year-end, you file your tax return (Form BE), and if too much PCB was deducted, LHDN refunds you the difference.
"Low earners don't need to worry about PCB"
Partially true. After deducting RM9,000 personal relief and RM4,000 EPF relief (RM13,000 total), if your chargeable income is RM5,000 or below, you pay no tax. This means someone earning up to ~RM1,500/month with EPF may have zero PCB.
"Bonuses are taxed at a higher rate"
False. Bonuses are taxed as regular income. However, the month you receive a large bonus might see a spike in PCB because the payroll system annualizes that month's income. LHDN's bonus PCB formula smooths this out, but you may still see a higher deduction. Any overpayment is refunded when you file your return.
How to Reduce Your PCB
- Maximize EPF contributions. Voluntary additions count toward the RM4,000 relief.
- Claim all eligible reliefs. Life insurance, medical insurance, education fees — keep receipts and claim everything.
- Contribute to SSPN. Education savings up to RM8,000/year are tax-relievable.
- Lifestyle purchases. Books, computers, smartphones, sports equipment, and internet subscriptions qualify for up to RM2,500 in relief.
- Donate to approved charities. Donations to registered organizations are tax-deductible.
PCB vs CP38: What's the Difference?
- PCB: Voluntary monthly tax deduction arranged through your employer based on estimated annual tax.
- CP38: A compulsory deduction order issued by LHDN when you have outstanding tax arrears. Your employer is legally required to deduct additional amounts from your salary until the debt is settled.
If you receive a CP38 notice, it means you have unpaid taxes. Resolve it promptly by contacting LHDN to arrange a payment plan.
Digital Tax Filing: MyTax & e-Filing
LHDN has fully digitized tax filing for individuals:
- Form BE: For employed individuals (filing deadline: April 30)
- Form B: For business owners/sole proprietors (filing deadline: June 30)
- e-Filing portal: ez.hasil.gov.my
- MyTax app: Available on iOS and Android for tax payments and status checks
Filing online typically results in faster refunds (within 30 days for e-filed returns).
Summary
Understanding PCB helps you budget better and avoid surprises at tax time. Your monthly PCB is an estimate — file your annual return to reconcile and claim any refund. Use tax reliefs strategically to reduce your chargeable income and lower your monthly deductions.
Want to estimate your PCB? Use our free PCB Calculator for an instant, personalized estimate.