19th March 2026 - 6 min read
The letters ‘PCB’ show up on every payslip, sitting between the EPF and SOCSO deductions. For a lot of people new to working life, the assumption is that PCB is the income tax , once it’s deducted, the whole tax business is sorted. That’s not quite how it works, and the misunderstanding is exactly why people get caught off guard when filing season arrives.
PCB stands for Potongan Cukai Bulanan, which translates to “Monthly Tax Deduction (MTD)” in English.
It’s calculated based on LHDN’s published tax schedule, which takes into account your salary, your EPF contributions, your marital status, and any tax reliefs your employer has been notified about. The result is a monthly deduction meant to approximate what you’ll eventually owe in income tax for the year.
Your employer then pays that amount directly to LHDN by the 15th of the following month. So when you see RM180 deducted as PCB in January, that money lands with LHDN in February, before you’ve even thought about filing anything.
Income tax is the actual tax you owe the government on your earnings for a given year. In Malaysia, it’s calculated annually based on your total chargeable income, after all your eligible tax reliefs and deductions are applied.
Malaysia uses a progressive tax system, meaning higher earners pay a higher percentage. Tax rates currently range from 0% to 30%, though most salaried employees fall well within the lower to mid brackets. If your annual income (after EPF deductions) is RM34,000 or below, you generally won’t owe any income tax at all.
Income tax is calculated once a year. PCB happens every single month. That gap between the two is where the confusion comes from.
| PCB | Income Tax | |
| What it is | Monthly deduction from salary | Annual tax liability on total income |
| Who calculates it | Your employer | You |
| When it happens | Every month, throughout the year | Once a year, during tax filing season |
| Who pays LHDN | Your employer (on your behalf) | You, if there’s any shortfall after filing |
| What happens at year-end | Reconciled against actual tax | Final amount determined after reliefs |
| Form involved | EA Form (summary from employer) | Form BE (filed by employee) |
Yes. PCB does not replace the obligation to file income tax. For most employees, filing is still required, and it’s through filing that any overpayment or underpayment is settled. The numbers below show what that looks like in practice, using a typical salaried employee as a reference point — single, earning RM5,000 a month, contributing 11% to EPF.
| Amount | |
| Monthly PCB deducted by employer | RM220 |
| Total PCB paid to LHDN by year-end | RM2,640 |
| Actual tax payable (after all reliefs) | RM2,400 |
| Result: Refund | RM240 |
If your reliefs are fewer and your actual tax works out higher than what was paid in via PCB, the difference is what you settle when you file. Using the same example, if actual tax were RM2,900, you’d pay RM260 at filing. This is why the same person can get a refund one year and owe money the next. It depends entirely on what reliefs they claim.
There is one narrow exception. If your PCB deductions throughout the year exactly match your actual income tax liability, which can be achieved through a process called PCB as Final Tax, you may qualify to skip filing. This only applies under fairly specific conditions. Your income situation needs to be straightforward, meaning only one employer and no other income sources. For most people, it’s safer to simply file.
Filing is also where you actively claim your tax reliefs. PCB calculations do factor in some reliefs automatically, but the full picture, including reliefs for medical expenses, education fees, insurance premiums, and more, only gets captured when you file. Skipping this means potentially paying more tax than you need to.
If you’ve noticed an extra deduction on your payslip labelled “CP38,” that’s separate from your regular PCB. CP38 is a specific instruction from LHDN directing your employer to deduct an additional amount from your salary, usually to settle outstanding tax from a previous year.
PCB is an estimate for current year tax. CP38 is a repayment mechanism for past tax debts. The amounts and duration are determined by LHDN, and your employer has no discretion over whether to apply it. You can’t negotiate it away. It runs until the debt is cleared.
PCB is an estimate based on information available at the start of the year. Three things commonly throw it off.
If you get a raise, a bonus, or a commission mid-year, the PCB calculation adjusts going forward, but earlier months may have been lower than they should have been.
Your employer only factors in reliefs they’ve been formally notified about. If you’re entitled to additional reliefs, for disabled family members or specific insurance policies, for example, you can submit a TP1 form to your employer so they adjust your PCB accordingly. Without it, your monthly deductions may run higher than necessary, and you’ll get the excess back when you file.
If you have more than one employer in a year, or earn income beyond your salary such as rental income, your PCB from your main job won’t account for any of that. Your actual tax bill may be higher than what PCB has covered.
PCB runs in the background. Your employer handles it, and you don’t need to think about it much month to month. Your side of this has three parts.
Get your EA Form from your employer by the end of February. It summarises your total income and total PCB deducted for the previous year, and it’s what you’ll need to complete your tax return.
File your income tax return by 30 April. Log in to MyTax, complete your Form BE, claim your reliefs, and submit. LHDN will compute whether you’re owed a refund or need to top up.
Keep receipts for your tax reliefs throughout the year, including medical expenses, insurance policies, book purchases, and gym memberships. They also directly reduce your chargeable income, which affects how much you owe versus what PCB has already covered. LHDN can audit your claims going back 7 years, so hold onto those receipts.
If you’ve never filed before and your annual income is above RM34,000 after EPF deductions, register for a tax file with LHDN sooner rather than later. Penalties apply for late or non-filing once you’re in the taxable bracket.
Unsure which reliefs you can claim? Our income tax relief guide lists everything available to Malaysian taxpayers.
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Pugaleshwaran Raja Kumaran is a Tax Executive Director at ThinkTX Consultants, with over a decade of experience delivering strategic and practical tax solutions. He advises high-net-worth individuals, multinational corporations, and growing businesses, helping them manage complex tax matters with clarity and confidence.
He has extensive experience across a broad range of tax engagements, including corporate tax compliance, Capital Gains Tax (CGT), withholding tax, stamp duty, Real Property Gains Tax (RPGT), Sales and Service Tax (SST), and advisory on inbound and outbound investments. He also leads practice areas covering tax incentives, tax audits and investigations, private client advisory, tax due diligence, and e-Invoicing advisory, providing comprehensive support across the business life cycle.
Beyond client advisory, Pugaleshwaran actively contributes to the tax profession through writing and speaking on Malaysian tax policy, regulatory developments, and industry best practices. His work has been published by the International Bureau of Fiscal Documentation (IBFD) and Wolters Kluwer (CCH), including contributions to Malaysia’s Sales and Service Tax (SST) content updates.
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As a trusted tax partner of RinggitPlus, Pugaleshwaran reviews and verifies Malaysian taxation content to ensure it is accurate, compliant, and relevant for everyday Malaysians.
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