What Is the Penalty for Late Income Tax Filing in Sri Lanka?
Filing your income tax return after the November 30 deadline triggers an automatic IRD penalty — the higher of:
- LKR 50,000 minimum penalty, or
- 5% of tax payable plus 1% for each month of delay
The IRD also charges 2% per month interest on any unpaid tax balance.
Use our free Late Filing Penalty Calculator (click the ⚠️ Late Penalty tab) to calculate your exact penalty and total amount due.
Penalty Examples
| Tax Payable | Months Late | Calculated Penalty | Minimum | Penalty Charged |
|---|---|---|---|---|
| LKR 50,000 | 3 | LKR 4,000 | LKR 50,000 | LKR 50,000 |
| LKR 200,000 | 3 | LKR 16,000 | LKR 50,000 | LKR 50,000 |
| LKR 500,000 | 3 | LKR 40,000 | LKR 50,000 | LKR 50,000 |
| LKR 1,000,000 | 3 | LKR 80,000 | LKR 50,000 | LKR 80,000 |
| LKR 1,000,000 | 12 | LKR 170,000 | LKR 50,000 | LKR 170,000 |
Key Tax Deadlines 2025/2026
- 30 November 2026 — Income tax return filing deadline (Y/A 2025/2026)
- 15 August 2025 — Q1 quarterly installment due
- 15 November 2025 — Q2 quarterly installment due
- 15 February 2026 — Q3 quarterly installment due
- 15 May 2026 — Q4 quarterly installment due
FAQs
What is the minimum penalty for late tax filing in Sri Lanka?
The minimum penalty is LKR 50,000, regardless of how much tax you owe. For higher tax amounts, the penalty is 5% of tax payable plus 1% for each month of delay — whichever is higher.
Can I appeal an IRD penalty for late filing?
Yes. You can submit a formal objection to the Commissioner General of Inland Revenue within 30 days of receiving the assessment. GDP Consultants can represent you in penalty appeals.
How long can the IRD go back to audit my returns?
If filed on time, the IRD can review your return within 30 months of the filing date. If filed late, this extends to 4 years. In cases of fraud or gross negligence, there is no time limit.
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