How Malaysian Corporate Tax Is Structured
Malaysian corporate income tax is assessed on a current-year basis. Your company files a tax return (Form C) for each year of assessment, and the tax computed on that return is the final liability for that year.
The challenge is that LHDN does not want to wait until you file Form C to collect the tax. So it uses an advance instalment system — the CP204 — where you pay estimated tax throughout the year in monthly instalments, and settle any remaining balance (or claim a refund) when the actual return is filed.
Corporate tax rates in Malaysia: qualifying small and medium companies pay 17% on the first RM150,000 of chargeable income, with the remaining income taxed at 24%. To qualify for the lower rate, your company's paid-up ordinary share capital must be RM2.5 million or less, your gross business income must not exceed RM50 million, and the company must not be related to a company that exceeds these thresholds. Larger companies pay 24% on all chargeable income. Rates are set by legislation and subject to change.
CP204: Estimated Tax Instalments
CP204 is a form you submit to LHDN before your financial year begins — at least 30 days before the start of your basis period — declaring your estimated tax payable for the coming year.
LHDN divides that estimate by 12 and you pay equal monthly instalments, starting from the second month of your financial year. So if your financial year starts 1 January, your first instalment is due in February, and you pay through January of the following year.
Each instalment is due by the 10th of that month. Late payment attracts a 10% late penalty on the amount due.
- CP204 submission: at least 30 days before the financial year starts
- 12 monthly instalments starting from the 2nd month of the basis period
- Each instalment due by the 10th of the month
- Late instalment penalty: 10% of the unpaid amount
CP204A: Revising Your Estimate
LHDN allows you to revise your CP204 estimate twice during the year — in the 6th month and again in the 9th month of your basis period. This is done via a CP204A form.
If your business is doing better or worse than expected, revising early is in your interest. If you underpay your estimates significantly (LHDN's threshold is if the variance between estimated and actual tax exceeds 30%), you may be subject to a 10% penalty on the difference.
Most businesses revise in the 6th month once they have a clearer picture of the year's performance.
Form C: The Annual Return
Form C is your company's actual income tax return for the year. It is filed after your financial year ends, once your accounts have been audited.
The filing deadline is 7 months after the end of your basis period. For a company with a 31 December financial year end, Form C is due by 31 July of the following year.
When you file Form C, the tax computed on your actual income is compared against what you paid via CP204 instalments. If you overpaid, LHDN issues a refund. If you underpaid, you settle the balance, along with any penalty if the shortfall is significant.
- Form C filing deadline: 7 months after end of financial year
- Must be accompanied by audited accounts
- Balance tax due or refund processed after filing
- Late filing penalty: 10% on tax payable (additional penalties may apply)
The Audit Requirement
Unlike sole proprietorships, a Sdn Bhd is generally required to have its financial statements audited by a licensed auditor before filing Form C. This means your books must be in a state that an auditor can work from — complete, reconciled, and properly documented.
If your books are disorganised or months behind, audit preparation becomes expensive. Your auditor charges for the time spent getting the records into shape before they can actually start the audit. This is one of the most direct cost consequences of poor bookkeeping for a Sdn Bhd.
What to Track Throughout the Year
To avoid CP204 surprises, you need to be monitoring your actual performance against your estimate throughout the year. If you are significantly ahead of your original CP204 estimate by mid-year, you should revise upward via CP204A to avoid the underpayment penalty.
Monthly management accounts — especially your P&L — are the tool that makes this possible. Without them, you are guessing when you file CP204A and risk a penalty you could have avoided.