Challenging an LHDN Decision: SCIT Appeal or Judicial Review?
Reviewed by Ms. Khoo Ai Theng, Founder, Advocate & Solicitor of the High Court of Malaya · Updated 26 October 2026 · 8 min read

Most disputes with LHDN about how much tax is payable are challenged by appealing to the Special Commissioners of Income Tax (SCIT). The appeal starts with Form Q, which must be filed within 30 days after the notice of assessment is served, under section 99 of the Income Tax Act 1967. LHDN then has 12 months to review the appeal and either settle it or send it to the SCIT for hearing, and the SCIT’s decision can be appealed to the High Court and then the Court of Appeal. Judicial review in the High Court is a narrower route, used where the complaint is that LHDN acted unlawfully, for example without legal power or unfairly, rather than simply that it got the figures wrong.
Tax remains payable while an appeal is pending. This article explains each route, the deadlines and how to choose between them.
Key takeaways
- File Form Q within 30 days after the notice of assessment is served. A late appeal needs an application for an extension of time on Form N.
- LHDN must review the appeal within 12 months of receiving it, which the Minister of Finance may extend by up to six months, before the appeal goes to the SCIT.
- A deemed assessment based on your own return generally cannot be appealed, but relief may be available for an error or mistake under section 131.
- Tax charged in an assessment is payable even if you appeal.
- Judicial review is available in limited cases, usually on questions of law, power or fairness, and generally must be filed within three months of the decision.
On this page
Which LHDN decisions can I appeal?
Section 99 of the Income Tax Act 1967 gives a person aggrieved by an assessment a right of appeal to the Special Commissioners. LHDN’s Public Ruling No. 12/2017 on appeals against assessments explains that this covers assessments such as additional assessments raised after a tax audit or investigation, and assessments made on the Director General’s best judgement.
Most taxpayers are assessed on their own returns under self-assessment. A deemed assessment based on your own return generally cannot be appealed, unless you computed the tax in line with a public ruling or LHDN’s practice at the time and disagree with that treatment. If you made an error or mistake in your own return, the usual route is an application for relief under section 131. Similar rights of appeal exist for real property gains tax under the Real Property Gains Tax Act 1976.
How do I file an appeal on Form Q?
The appeal is made by giving notice on Form Q to the Director General within 30 days after the service of the notice of assessment. The form must be signed by the taxpayer, state the amount in dispute and set out the grounds of appeal. The grounds matter, because they frame the issues for the rest of the appeal.
If you miss the deadline, you may apply for an extension of time on Form N, giving a good reason for the delay. If LHDN allows the application, it gives you 30 days to file Form Q. If it refuses, the application is forwarded to the SCIT, and the SCIT’s decision on the extension is final.
What happens after Form Q is filed?
LHDN reviews the appeal and may propose a settlement. It must complete its review within 12 months of receiving the notice of appeal, a period the Minister of Finance may extend by up to six months. If the appeal is not settled, LHDN forwards it to the SCIT.
The SCIT is a specialist tribunal. It usually holds case management first to see whether the dispute can be resolved, and then fixes a hearing at which witnesses may be called and submissions made. The taxpayer may appear in person or be represented by an advocate and solicitor or a qualified tax agent. Either party may appeal against the SCIT’s decision to the High Court, and from there to the Court of Appeal.
Do I have to pay the tax while the appeal is pending?
Yes. Tax charged in an assessment is due and payable whether or not you appeal, and late payment attracts increases. If you do not pay, LHDN may sue for the tax under section 106, and in that suit the court will not entertain arguments that the tax is excessive or under appeal. LHDN may also issue a stoppage order preventing you from leaving Malaysia.
If the appeal succeeds, tax overpaid is refunded. Where paying in full would cause hardship, ask LHDN for an instalment arrangement early. See LHDN Travel Ban in Malaysia: How to Check and Lift a Stoppage Order.
When is judicial review available instead?
Judicial review is the High Court’s supervisory jurisdiction over public decision-makers, including LHDN. It asks whether a decision was lawful, rational and procedurally fair, not what the correct amount of tax is. The application is made under Order 53 of the Rules of Court 2012, generally within three months after the decision is communicated, and the court’s leave is needed first.
The courts expect taxpayers to use the statutory appeal where it is available. In Ketua Pengarah Hasil Dalam Negeri v Alcatel-Lucent Malaysia Sdn Bhd & Anor (Federal Court, 29 November 2016), the taxpayers had paid under protest without appealing to the Special Commissioners. The Federal Court emphasised that the taxpayer must go to the Special Commissioners first, and also found that the judicial review application had been filed out of time.
Judicial review remains available in suitable cases. In Speed Modulation Sdn Bhd v Ketua Pengarah Hasil Dalam Negeri [2023] 7 MLJ 849, the High Court granted leave to challenge real property gains tax assessments where the complaints raised questions of law and LHDN had relied on a valuation that was not disclosed to the taxpayer, and it stayed further proceedings on the assessments pending the hearing.
How do I choose between an appeal and judicial review?
As a general guide:
- if the dispute is about facts, figures or how the law applies to your transactions, appeal to the SCIT on Form Q;
- if LHDN has acted without legal power, misdirected itself on the law, or acted unfairly or irrationally, judicial review may be considered;
- where in doubt, file Form Q within the 30 days to protect your position while you take advice on judicial review.
Both routes have strict time limits, and the choice affects the evidence you need and the costs involved, so take advice as soon as the assessment or decision arrives. On what happens before an assessment is raised, see LHDN Tax Audit in Malaysia: The Process, Your Rights and Penalties. For indirect tax, see SST Bill of Demand in Malaysia: How to Challenge or Appeal It.
Frequently Asked Questions
How long do I have to appeal against an LHDN assessment?
30 days after the notice of assessment is served, by filing Form Q under section 99 of the Income Tax Act 1967. If you miss the deadline, you may apply for an extension of time on Form N, giving a good reason for the delay.
Do I still have to pay the tax if I appeal?
Yes. Tax charged in an assessment is payable even if you appeal. If the appeal succeeds, tax overpaid is refunded.
How long does a tax appeal take in Malaysia?
LHDN has 12 months from receiving Form Q to review the appeal, which the Minister of Finance may extend by up to six months. If the appeal is not settled, it goes to the Special Commissioners of Income Tax for hearing, which adds further time depending on the complexity of the case.
Can I appeal against my own self-assessment?
Generally no. A deemed assessment based on your own return cannot be appealed under section 99 unless you followed a public ruling or LHDN’s practice at the time and disagree with that treatment. Errors or mistakes in your own return are usually corrected by applying for relief under section 131.
Can I go straight to court by judicial review instead of appealing?
Only in limited cases. The courts expect taxpayers to use the statutory appeal to the Special Commissioners where it is available. Judicial review is more suitable where LHDN acted without legal power or unfairly, and it generally must be filed within three months of the decision.
About the author
Maxine Khoo Ai Theng is the founder of Messrs Ng, Zainurul, Seke & Khoo. The firm acts in tax, SST and customs disputes alongside its corporate, employment and family practices, and she leads its Employment & Industrial Relations practice. She is recognised by The Legal 500 Asia-Pacific for employment law and is co-author of Malaysian Employment & Industrial Relations Law (Marsden Law Book, 2026). Read her profile.
Need advice on your own situation?
Every case turns on its own facts and documents. Our lawyers in Puchong and Mont Kiara advise once we have reviewed your documents at a consultation, online or in person.
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This article is general information on Malaysian law as at October 2026 and is not legal advice. Laws and procedures change, so please seek advice on your own facts before acting.
