Form C Filing: Preparing a Malaysian Company Return

For a Malaysian company, Form C is not a single filing-date exercise. The due date is derived from the company's own accounting period, the return itself carries no accounts, and a second statutory deadline — for the financial statements and tax computation — falls thirty days after the first.

This article sets out what a company actually has to produce, when each deadline falls, and where the sequence most often goes wrong. References are to the Income Tax Act 1967 (ITA 1967) and to HASiL's Return Form Filing Programme for the year 2026, issued on 30 December 2025 and stated to apply until the following year's programme is issued.

The due date belongs to the company, not to the calendar

Section 77A(1) of the ITA 1967 requires a company to furnish its return "within seven months from the date following the close of the accounting period which constitutes the basis period for the year of assessment". There is no single national deadline for companies, and two companies filing in the same month may be on entirely different cycles.

Applying the rule to a 31 December 2025 accounting period end: the period following the close begins on 1 January 2026, and seven months from that date gives a statutory due date of 31 July 2026.

The 2026 filing programme then grants companies additional time of one month where the return is furnished by e-Filing. On the same facts, that moves the practical date to 31 August 2026. Two qualifications matter:

• The additional time is an administrative concession recorded in the current programme, not a statutory extension. It is set by HASiL each year and should be confirmed against the programme in force rather than carried over from a previous year's diary entry.
• The same additional time also covers payment of the balance of tax under section 103(1). That is easy to overlook when the filing deadline and the payment deadline are tracked by different people.

Filing is electronic, and only electronic

Section 77A(1A) requires a company to furnish the return on an electronic medium or by electronic transmission in accordance with section 152A. The filing programme records that e-Filing has been mandatory for the company return (Form e-C) since year of assessment 2014, and the postal column is blank for companies.

Companies file through the HASiL Return Form Filing Programme; licensed tax agents file through the Tax Agent e-Filing System. The practical constraint is access rather than arithmetic: director or representative roles, agent authorisations and digital credentials need to be current well before the deadline, because they cannot be arranged in the final week.

The accounts do not go with the return — they go through MITRS

This is the change that most reshapes the timetable, and it is frequently missed.

The financial statements and supporting computations are not attached to Form C. HASiL's own guidance states that business accounts and supporting documents are not required at the time of Form C submission. Instead, section 82B of the ITA 1967 requires a person who has furnished a return under section 77 or 77A to provide information and furnish specified documents electronically within thirty days after the due date for furnishing the return, through the Malaysian Income Tax Reporting System (MITRS).

HASiL has implemented this in stages, beginning with companies and limited liability partnerships from year of assessment 2025, and extending from year of assessment 2026 to unit trusts and property trusts, co-operative societies, trust bodies, and real estate investment trusts and property trust funds.

For a company, the documents specified are:

• audited financial statements, or unaudited financial statements where an audit exemption is given under any written law — eligibility for that exemption is a matter for SSM's own current criteria, not for the tax filing;
• the income tax computation, with a detailed income statement and detailed adjustments to the accounts;
• the complete schedule of capital allowances and charges under Schedule 3, including balancing allowances and balancing charges, where a claim is made; and
• the complete computation of any incentives claimed.

Three operating rules follow from HASiL's guidance. The return must be furnished before the documents can be uploaded. Documents must be in PDF, not exceeding 20 MB for the year of assessment concerned, and in Malay or English only, with anything else translated first. And where a document is later amended, all relevant documents must be re-uploaded and the submission date is updated to the latest upload date — so a correction made after the deadline is itself treated as late.

What the tax computation has to withstand

The computation is not accounting profit transposed into a return. It is a reconciliation that has to hold up when read alongside the financial statements a reviewer will have in front of them, because both now reach HASiL for the same year.

That consistency is the practical point of the MITRS requirement. Where the computation adjusts an accounting figure, the adjustment should be traceable to the statement it came from. The areas that most often need work before, rather than during, the final week are:

• expenditure whose deductibility depends on facts rather than classification;
• capital allowance claims where additions, disposals and the treatment of assets held under hire purchase or lease must be reconciled to the fixed asset register;
• unabsorbed losses and capital allowances carried forward, and the time limits and continuity conditions attaching to them;
• related-party transactions and any transfer pricing documentation requirement;
• incentive claims, which require their own complete computation; and
• changes in accounting treatment or estimate between years, where the reason should be recorded at the time.

Records: what must be kept, and for how long

Section 82(1)(a) requires a person carrying on a business to keep and retain sufficient records for seven years from the end of the year to which the income relates. Section 82A applies the same seven-year period, measured from the end of the year of assessment, to the documents a taxpayer required to furnish a return must retain. Where no return was furnished, the period runs from the end of the year in which it is eventually furnished.

Section 82A(5) adds a requirement that is sometimes overlooked in groups using shared or offshore accounting functions: documents relating to income in Malaysia must be kept and retained in Malaysia.

The estimate and the payment run on a separate clock

Filing the return is not the only company obligation tied to the basis period. Section 107C requires an estimate of tax payable to be furnished before the basis period begins, with instalments and defined revision points during the year. That is a separate regime with its own conditions and consequences, and it should be managed on its own timetable rather than picked up at filing.

What the two have in common is the settlement date. The balance of tax is payable by the return due date, and section 103(3) provides that tax not paid by the due date is increased by ten per cent without further notice. The additional five per cent that once followed was deleted by the Finance Act 2019, so a single ten per cent increase applies.

What late or incorrect filing costs

• Failure to furnish the return — section 112(1) provides for a fine of not less than RM200 and not more than RM20,000, or imprisonment not exceeding six months, or both. Where no prosecution is instituted, section 112(3) permits HASiL to require a penalty equal to treble the tax payable for that year.
• Incorrect return — section 113(1) provides for a fine of not less than RM1,000 and not more than RM10,000 together with a special penalty of double the tax undercharged; section 113(2) permits a penalty equal to the tax undercharged where no prosecution is instituted.
• Failure to furnish the section 82B documents — HASiL states this is an offence under paragraph 120(1)(d), carrying a fine of not less than RM200 and not more than RM20,000, or imprisonment not exceeding six months, or both.

A return furnished through e-Filing after the additional time has expired is treated as received late from the original statutory due date, not from the end of the concession.

A timetable that works backwards

1. Fix the accounting period end and derive the section 77A(1) due date from it. Confirm the current additional time, and the electronic filing and MITRS availability dates, against the filing programme in force.
2. Set the section 82B date at thirty days after the return due date, and confirm with HASiL how the e-Filing additional time interacts with it before relying on a later date.
3. Work back from the section 82B date to financial statement completion, since those statements must be capable of being furnished shortly after the return.
4. Prepare the computation, the Schedule 3 schedule and any incentive computation as a single reconciled set, not as separate documents assembled at the end.
5. Identify early the positions that need analysis — losses, incentives, related-party transactions, changed treatments — and record the reasoning while the facts are available.
6. Confirm portal access, agent authorisation and credentials in advance.
7. Plan the balance-of-tax payment against the same date as the return, and reconcile it to instalments already paid.
8. Retain the return, computation, schedules and supporting documents for the statutory seven-year period.

General-information limitation

This article is general information, not tax advice for a particular company, and it does not determine the due date, the treatment of any transaction, or the obligations applicable to any entity. Filing programmes, system requirements and statutory provisions change, and a company's own position depends on its accounting period, facts and circumstances. Confirm the current requirements against HASiL's published material and obtain advice on the facts where a matter is material.

To discuss how these requirements apply to your company's circumstances, see Saifudin & Co's tax advisory and compliance services.