Income Tax Act 1967 · Section 112
What happens if you file taxes late in Malaysia?
Two things, and they stack. First, a penalty for filing late, a percentage of the tax you owe that grows the longer you wait (15%, then 30%, then 45%). Second (and this is the one that hurts), if you don't file at all, LHDN can estimate your income themselves and add a penalty of up to 300% of the tax owed. Here's the detail.
1. The late filing penalty
The penalty most late filers actually pay is a percentage of the tax you owe, set by Section 112(3) of the Income Tax Act 1967. LHDN's own operational guideline (GPO 3/2020) scales it by how late the return is: 15% if you file up to 12 months late, 30% over 12 to 24 months, and 45% beyond 24 months. The meter runs, but slowly, and it only jumps at the one-year and two-year marks.
You may also have read that late filing carries a fine of RM 200 to RM 20,000, up to 6 months' jail, or both. That is real, but it is the Section 112(1) maximum a court can impose if LHDN prosecutes, which they reserve for people who ignore them entirely. For an ordinary filer who is simply late, the 15% administrative penalty above is what actually lands.
2. The 300% best-judgment risk
This is the expensive one. If you simply don't file, LHDN can raise a best-judgment assessment: they estimate your income (usually generously, in their favour) and bill you on that. On top of that estimate they can add a penalty of up to 300% of the tax. You're then stuck disputing a number you didn't choose, which is far harder than just filing on time.
The deadlines you're racing
Form BE (employment income): 30 April on paper, 15 May for e-filing. Form B (business / sole-prop): 30 June on paper, 15 July for e-filing. And remember, being below the tax-payable line doesn't excuse you from filing. If you're above the income threshold, you file regardless.
Already paid but worried about the balance instead? See the late payment penalty (10% + 5%).
Frequently asked questions
What happens if you file your income tax late in Malaysia?
The penalty most people actually pay is administrative, under Section 112(3): a percentage of the tax you owe based on how late you are, 15% up to 12 months, 30% over 12 to 24 months, 45% beyond. Section 112(1) also lets a court fine you RM 200 to RM 20,000 (or jail up to 6 months) if LHDN prosecutes, and if you never file at all, LHDN can raise its own assessment and add up to 300% of the tax.
How long before the late-filing penalty goes up?
The 15% rate holds until 12 months after the deadline, then rises to 30%, and past 24 months to 45%. Waiting never helps, but the jumps happen at those two marks.
What are the income tax filing deadlines in Malaysia?
Form BE (employment income): 30 April on paper, 15 May for e-filing. Form B (business / sole-prop income): 30 June on paper, 15 July for e-filing. Form C (companies): within 8 months of the financial year-end.
Do I still need to file if I have no tax to pay?
If your income is above the filing threshold you must still file, even if reliefs bring your tax to zero. "No tax payable" is not the same as "no need to file", and late filing can still draw a Section 112 fine.
What is a best-judgment assessment?
If you don't file, LHDN can estimate your income themselves and bill you on that estimate (usually higher than reality) and add a penalty of up to 300% of the assessed tax. You then have to dispute it, which is far harder than just filing on time.
