How to Calculate Tax Estimate for CP204 in Malaysia

To calculate the tax estimate for CP204 in Malaysia, apply the correct corporate tax rate to your projected chargeable income for the coming basis period, then compare the result against 85% of the prior year’s estimate. Whichever figure is higher is what you submit. The rate you use depends on whether the company qualifies as a resident SME, and the 85% comparison is a legal floor set under Section 107C(3) of the Income Tax Act 1967.¹

Step 1: Apply the Correct Tax Rate to Projected Chargeable Income

Start with an internal forecast of chargeable income for the upcoming basis period, drawing on budgets, revenue projections, and expected deductible expenses. The rate you apply to that figure depends on the company’s status.

Standard companies pay a flat 24% on chargeable income. Non-resident companies are also taxed at 24% on Malaysia-sourced income.

Resident SMEs get a three-tier structure. To qualify, the company must have paid-up ordinary share capital of RM 2.5 million or less and gross business income of RM 50 million or less.² The tiers are:

First RM 150,000 of chargeable income: 15%
RM 150,001 to RM 600,000: 17%
Above RM 600,000: 24%

Take a qualifying SME projecting RM 800,000 in chargeable income. The tax works out to RM 150,000 × 15% = RM 22,500, plus RM 450,000 × 17% = RM 76,500, plus RM 200,000 × 24% = RM 48,000. Total estimated tax: RM 147,000. A standard company at the same income level would owe RM 800,000 × 24% = RM 192,000. Confirming SME status before you calculate is worth the effort.

Be careful not to confuse the two SME definitions in play. The criteria for the CP204 filing exemption under Section 107C(4A) look at paid-up capital and ownership structure only. The criteria for the preferential tiered rate add the RM 50 million gross business income ceiling. A company can meet one set without meeting the other, and applying the wrong rate throws off the whole calculation.

Step 2: Check the 85% Minimum Floor

Section 107C(3) sets a lower bound. The current year’s estimate cannot be less than 85% of the last figure submitted for the immediately preceding year of assessment. That reference figure is the revised estimate if you filed a CP204A during the prior year, or the original CP204 estimate if you did not.³

Say last year’s estimate was RM 200,000. Your floor for this year is RM 200,000 × 85% = RM 170,000. If your Step 1 calculation produces RM 120,000, you still submit RM 170,000. If Step 1 produces RM 250,000, you submit RM 250,000. The floor never caps the estimate; it only lifts it.

Treat 85% as a floor, not a target. Companies that submit exactly 85% of last year’s figure every year, regardless of how business is actually tracking, are the ones who end up hit by the underestimation penalty when the tax return is filed. The rule exists to protect against genuine downturns.

The 85% minimum does not apply in the first year of assessment. A newly established company bases its first-year estimate on projected profits alone, and the floor kicks in from the second year onward.³

Step 3: Divide by the Months in the Basis Period

Once you have the final estimate, divide it by the number of months in the basis period, usually 12, to get the monthly installment. LHDN then issues a Notice of Instalment Payment (CP205) confirming exact amounts and dates. Installments begin in the second month of the basis period, and each one is due by the 15th of the calendar month.³

What You Need Before Running the Numbers

Have these on hand before you calculate:

The company’s tax identification number, which for corporates begins with “C” and ends in zero.⁴
The start and end dates of the upcoming basis period.
The prior year’s CP204 figure, or the CP204A revised estimate if one was filed. This sets your legal floor.
Internal projections of revenue and deductible expenses for the coming year.
Paid-up capital and shareholder details, to confirm whether SME rates apply.

Submission itself runs 30 days ahead of the basis period. For a company with a basis period starting 1 July, CP204 must be in LHDN’s system by 1 June. Count from the basis period start date, not from the AGM or the date the accounts are signed off. Newly established companies with a first basis period of at least six months have three months from the date operations begin.³

Revising the Estimate Mid-Year With CP204A

The initial calculation is not the end of it. Business conditions shift, and LHDN allows up to three revisions through Form CP204A during the basis period: in the 6th month, the 9th month, and the 11th month.³

A 6th-month revision takes effect from the 5th or 6th installment.
A 9th-month revision takes effect from the 8th or 9th installment.
An 11th-month revision takes effect from the 11th installment.

If the revised estimate is higher, the additional tax is spread across the remaining installments. If lower, installment payments in the following months stop until the revised total is reached.³ When mid-year results show profits running well ahead of your original forecast, revising upward in the 6th or 9th month is the cleanest way to stay clear of the underestimation penalty.

How Penalties Shape the Calculation

Two penalties act as guardrails on the estimate itself.

The underestimation penalty in Section 107C(10) applies when the actual tax on the return exceeds the original or last revised estimate by more than 30%. When that happens, LHDN imposes a 10% penalty on the full difference between the actual tax and the estimate, not just the portion above the 30% buffer. The 30% cushion is there for honest forecasting error; crossing it once triggers the penalty on the entire shortfall.

The late payment penalty is 10% on any monthly installment not paid by the 15th of the calendar month.⁵ It compounds across missed months, so a modest estimate paid on time costs less than an accurate one paid late.

Together, these two rules explain why the calculation is worth doing carefully. Underestimate by more than 30% and you pay 10% on the gap; underestimate deliberately to save cash and you land in the same place. The safest calculation is one grounded in a realistic forecast, revised upward through CP204A when the year runs hotter than expected.

Common Calculation Mistakes

Beyond mixing up the SME definitions, two errors show up repeatedly.

The first is anchoring on the 85% floor instead of on projected income. Companies default to 85% of the prior year every year, ignoring current-year performance, and are surprised when the underestimation penalty hits after the return is filed.

The second is using the wrong prior-year reference. The floor is 85% of the last figure formally submitted, which means the revised estimate on CP204A if one was filed, not the original CP204. Pulling the wrong number produces a floor that is too low, and the estimate you submit may end up below the statutory minimum without your realizing it.

1
Inland Revenue Board of Malaysia. Income Tax Act 1967 – Section 107C Estimate of Tax Payable and Payment by Instalments for Companies
2
Lembaga Hasil Dalam Negeri Malaysia. Tax Rate of Company
3
Lembaga Hasil Dalam Negeri Malaysia. Tax Estimation
4
Inland Revenue Board of Malaysia. Malaysia Information on Tax Identification Numbers
5
Lembaga Hasil Dalam Negeri Malaysia. Tax Payment