Penalty & Late FilingLast Updated: September 2026•Read Time: 8 min read•Verified by NBR SRO & Tax Act 2023

Late Tax Return Penalty & Section 174 Delay Interest: Time Extension Rules

Returns filed after Tax Day (31 December) lose investment rebates and incur 2% monthly delay interest under Section 174. How to apply for official time extension.

Key Takeaways & Core Points

Tax Day is 31 December for individual taxpayers.
Filing on time before 30 September earns a 5% early incentive discount on net tax.
Filing late forfeits the 5% incentive and triggers 2% monthly delay interest under Section 174.
Formal time extension can be requested from the Deputy Commissioner of Taxes for up to 2 months.

Timely compliance is strictly enforced under the modern tax law. Understanding the financial consequences of late filing helps taxpayers avoid unnecessary interest and penalties.

1. Deadlines and the 5% Early Filing Incentive

Filing between 1 July and 30 September yields a 5% tax incentive discount on payable tax. The regular submission window closes on 31 December.

2. Penalties After 31 December

Submitting between 1 January and 31 March triggers statutory delay interest of 2% per month (or minimum ৳3,000 penalty), escalating to 5% or ৳5,000 for later quarters.

Frequently Asked Questions (FAQ)

Q: Can I file an online return after 31 December?

A: Yes, the e-Return portal remains open year-round, but late interest is automatically calculated and added.

Conclusion & Tax Tips

File before 30 September to capture the 5% incentive, or at least before 31 December to avoid penalties.

Official Statutory References & Sources

Reviewed by Talukdar Academy Research Cell

All data, tax brackets, thresholds, and statutory interpretations in this article are compiled directly from the Bangladesh Income Tax Act 2023, Finance Ordinance 2026, and official NBR circulars.

NBR Official Portal

Official e-Return Portal

Income Tax Act 2023 Gazette