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The tax rules below were checked against HASiL's published guidance and the Finance Act 2025, including the YA2027 transition and the enacted YA2028 existing-company instalment start (see the linked primary sources under Sources). The estimator is illustrative and never files anything.
Estimated tax for companies — better known in Malaysia as CP204 — trips up many business owners. HASiL's forms sound intimidating, but the core rules are manageable once they are laid out month by month. Because each year of assessment can shift with Finance Act changes, this guide limits itself to what HASiL publishes today and links to the official pages for the fine print. For the current rates, see the HASiL company tax rate page as updated for the applicable year of assessment.
Companies, LLPs, trusts and cooperatives earning business income normally must estimate and remit tax in instalments under section 107C of the Income Tax Act 1967.
Your CP204 figure for this year may not drop below 85% of last year's revised estimate (or the original, if never revised) from the second year of assessment onward (s.107C(3)). Going below invites a determined estimate (CP205) from the DGIR under s.107C(8). An estimator can help you check the floor; the underlying number stays your responsibility.
Revising after the basis period began happens through e-CP204A in the 6th, 9th or 11th month of the basis period (you may revise in any, any two, or all three of those opportunities). HASiL confirms the applicable revision months, but the statutory provision and official guidance cited here do not establish an exact last filing day within each month. Do not treat the last calendar day as a statutory deadline; confirm the precise cut-off in MyTax/e-Filing or directly with HASiL before filing. These are separate revision opportunities and you do not need to submit all three.
Try a scenario: the interactive simulator lets you compare an original CP204 estimate, a newly calculated different amount, one month-6, month-9 or month-11 CP204A revision, or a DGIR CP205 deemed-revised estimate. A newly calculated tax amount is not the same thing as an original CP204 estimate submitted to HASiL; where no submitted estimate is provided, the simulator labels that fact and uses the calculated amount only for illustration. RM24,000 and RM3,685, for example, are different user inputs rather than two unexplained versions of the same estimate. Enter actual tax payable under the assessment (the Notice of Assessment) only when the relevant assessment is available; otherwise leave it blank. The s.107C(10) result is illustrative and separate from s.107C(9). A changed simulator amount replaces the simulator output rather than adding another full schedule, and is clearly marked as a simulation—not necessarily a submitted CP204A estimate. For CP205, follow the payment schedule directed by HASiL—the simulator does not reconstruct it. For a newly commencing company, the tax comparison is available, but the simulator does not infer which instalment a CP204A revision affects in its month-6-start schedule; obtain professional review. The tool does not submit CP204/CP204A or produce a final HASiL assessment.
The 85% minimum under s.107C(3) is a separate submission-stage test against the preceding YA’s revised/original estimate. It is not the later s.107C(10) underestimation tolerance. The s.107C(10) calculation uses actual tax payable under assessment and applies only to the difference beyond 30% of actual tax. Any s.107C(9) late-instalment increase is separate and is not added to the s.107C(10) figure. A separate consequence may apply under s.107C(10A) where no required estimate was furnished and its statutory conditions are met; this estimator does not determine whether that provision applies or calculate its increase. Seek professional confirmation for the taxpayer’s facts.
The guided estimator on this page follows an illustrative pipeline: revenue → accounting expenses → estimated accounting profit → add-backs for non-deductible items → allowances → estimated chargeable income → tax. It is not a complete Form C computation; losses and many tax-specific adjustments require professional review. If the accounting period has changed, CP204B rules may apply; this estimator does not reconstruct the revised basis period or instalment schedule, so obtain professional review.
Preferential tax rates are separate from the new-company flexibility to submit CP204 without an estimate under s.107C(4A). Selecting SME rates does not establish that separate instalment exemption.
For the preferential rates, HASiL Public Ruling 8/2025 requires the applicable conditions to be met, including that the company is resident and incorporated in Malaysia, paid-up ordinary share capital is no more than RM2.5 million at the beginning of the basis period, and gross income from this company's business sources is no more than RM50 million (do not combine related companies' business income). Related-company restrictions also apply. A related company for these tests has paid-up ordinary share capital exceeding RM2.5 million at the beginning of the basis period; use the Bank Negara Malaysia exchange rate at that date for a foreign-currency amount. The company does not qualify if more than 50% of its capital is owned directly or indirectly by such a related company; if it owns more than 50% of the related company; or if the same other company owns more than 50% of both. Exactly 50% does not exceed these thresholds. Trace direct and indirect ownership through intermediate companies to the ultimate holding company. From YA2024, more than 20% combined ownership by foreign-incorporated companies or non-Malaysian citizens, directly or indirectly, also disqualifies the company; exactly 20% does not exceed that limit. The special rates do not apply to business trusts or Securities Commission-approved asset-backed-securities special-purpose companies.
The estimator asks a short self-check and uses the standard 24% rate if an answer indicates a condition is not met or the ownership chain is uncertain. This is not a definitive tax determination. Ask a Malaysian tax adviser to review complex ownership structures. Its YA2027 14%/16%/24% tiers are Budget 2027 proposals, not enacted rates; its YA2028 15%/17%/24% tiers are planning assumptions, not confirmed future policy.
Yes, from the second YA onward — with the 107C(4A) MSME carve-out for the first two YAs of a qualifying new company.
Yes. A company may use one, two or all three opportunities: the 6th-month and 9th-month revisions, plus the 11th-month opportunity in the same basis period (HASiL lists all three). Remember the minimum-estimate rule ties your NEXT year's CP204 to the latest revised figure.
No. It is a teaching tool with a month-by-month schedule so you can see what HASiL expects. Filing happens in the MyTax portal through your tax agent.
The 6th/9th/11th-month e-CP204A revision mechanism is exactly for that, including e-CP204A's stop-payment behaviour below the amounts already due. Watch the 85% floor before you slash.
The company tax rate table (HASiL) — standard 24% and, for qualifying SMEs, tiered rates on the official page. Nothing here replaces eligibility confirmation by a qualified adviser.
Last reviewed: 2026-10-31. The estimator is illustrative and does not constitute tax advice.
Need help preparing or revising your CP204 estimate? Our tax team can assist with your company's estimated tax payable, CP204 submission and CP204A revisions. Contact us before you file.
