Late ITR Filing Penalty for AY 2026-27 — Section 234F, 234A, and 234B Explained
Filing your ITR after 31 July 2026 triggers three separate charges under the Income Tax Act. Here is exactly what each one costs and when it starts.
Harun Raaj
Chartered Accountant · Harun Raaj & Associates
Filing your Income Tax Return after 31 July 2026 triggers three separate charges under the Income Tax Act, 1961 — a flat late filing fee, interest on unpaid tax, and interest on advance tax shortfall. Understanding each one tells you exactly what delay costs you.
The Three Charges at a Glance
Section 234F — Late Filing Fee
Section 234F (inserted by Finance Act 2017) imposes a mandatory fee for filing after the due date under Section 139(1):
- ₹5,000 if the return is filed between 1 August 2026 and 31 December 2026
- ₹1,000 if your total income does not exceed ₹5,00,000
This is a fee, not interest — it is charged regardless of whether all taxes are paid on time and regardless of the size of your refund. There is no waiver provision in the Act. The CBDT does not have power to condone delay in payment of this fee.
New Income Tax Act, 2025: The new Act, which applies from Tax Year 2026-27 (FY 2026-27) onwards, retains equivalent late filing fee provisions. For AY 2026-27 returns (FY 2025-26 income), the Income Tax Act, 1961 governs. The new Act uses the term "Tax Year" instead of "Assessment Year" and "Previous Year."
Section 234A — Interest on Unpaid Tax
Section 234A charges 1% simple interest per month (or part of a month) on the amount of tax remaining unpaid after the filing due date. It applies only if you have a net tax liability after accounting for TDS, advance tax, and self-assessment tax.
Interest accrues from 1 August 2026 until the date the return is filed (or until the date of assessment, whichever is earlier).
Key point: If you pay all outstanding tax before filing (via self-assessment tax Challan 280), Section 234A interest stops accruing on the date of payment — even if you file the return later.
Section 234B — Interest on Advance Tax Shortfall
Section 234B applies if your total advance tax paid before 31 March 2026 was less than 90% of your assessed tax. The interest rate is 1% per month from April 2026 until the date of assessment or payment.
For salaried individuals where TDS under Section 192 covers the full liability, Section 234B typically does not apply. It becomes relevant when you have substantial other income (freelance fees, rental income, capital gains, FD interest) and TDS does not cover 90% of total liability.
What You Cannot Carry Forward
A return filed after 31 July 2026 is a belated return under Section 139(4). Under Section 80AC, you forfeit the right to carry forward the following losses:
- Business and profession losses
- Short-term and long-term capital losses
- Speculation losses
Exception: House property losses (up to ₹2,00,000 per year) can still be carried forward even in a belated return.
If you have realised capital losses in FY 2025-26 — particularly from equity mutual funds or stocks — filing on time before 31 July 2026 is critical to preserve the carry-forward.
Worked Example
Rohit is a salaried software consultant with freelance income. His AY 2026-27 position:
Had he paid self-assessment tax of ₹30,000 on 28 July and filed late, §234A and §234B would be minimal — only the §234F fee of ₹5,000 would remain.
Frequently Asked Questions
Is the Section 234F fee refundable? No. Once the return is filed after the due date, the fee is charged regardless of the return's subsequent status or whether a refund is due.
Can I avoid 234A interest by paying self-assessment tax before filing? Yes. Section 234A interest stops on the date you pay the outstanding tax, even if you file the return later. Pay via Challan 280 at the portal first, then file.
If my income is below ₹5 lakh and I have no tax liability, do I still pay 234F? You pay ₹1,000 (the reduced fee) even if total tax after TDS is nil, provided you are required to file. If your income is below the basic exemption limit (₹3,00,000 under the new regime) and filing is not mandatory, no fee applies.
What is the last date to file a belated return for AY 2026-27? 31 December 2026 under Section 139(4). After this date, you cannot file voluntarily — the Assessing Officer initiates proceedings under Section 144 (best judgment assessment).
Does Section 234B apply to employees whose employer deducts TDS? Generally no — TDS under Section 192 is treated as advance tax under Section 219. But if your employer's TDS covers less than 90% of your total tax (due to freelance income, capital gains, etc.), Section 234B applies on the shortfall.
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File before 31 July and pay zero. File your ITR for AY 2026-27 with Harun Raaj & Associates →
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See Also
Frequently Asked Questions
What is the late filing penalty for income tax return after 31 july 2026?+
Section 234F imposes a mandatory late filing fee of ₹5,000 if the return is filed between 1 August 2026 and 31 December 2026. However, if your total income does not exceed ₹5,00,000, the fee is reduced to ₹1,000. This is a flat fee charged regardless of whether taxes are paid on time or the size of your refund, with no waiver provision under the Act.
How is interest calculated on unpaid tax under Section 234a?+
Section 234A charges 1% simple interest per month (or part of a month) on unpaid tax after the filing due date. Interest accrues from 1 August 2026 until the date the return is filed or the date of assessment, whichever is earlier. If you pay outstanding tax via self-assessment tax Challan 280 before filing, Section 234A interest stops accruing from the date of payment.
When does Section 234b interest on advance tax shortfall apply?+
Section 234B applies if your total advance tax paid before 31 March 2026 was less than 90% of your assessed tax. The interest rate is 1% per month, accruing from 1 April 2026 until the date of assessment or payment, whichever is earlier.
Is Section 234f late filing fee waived for income below 5 lakh?+
No absolute waiver exists, but Section 234F provides a reduced fee for lower incomes. If your total income does not exceed ₹5,00,000, the late filing fee is ₹1,000 instead of the standard ₹5,000. However, there is no waiver provision in the Act itself, and the CBDT does not have power to condone delay in payment of this fee.
What is the difference between Section 234a and 234b penalties?+
Section 234A charges interest on unpaid tax after the filing due date (1 August 2026 onwards), while Section 234B charges interest on advance tax shortfall (from 1 April 2026 onwards if advance tax paid was less than 90% of assessed tax). Both charge 1% simple interest per month, but 234A applies to unpaid tax liability and 234B applies to insufficient advance tax payment.
How much total penalty can be charged for late ITR filing in FY 2026-27?+
Three separate charges apply: (1) Section 234F – a flat fee of ₹5,000 (or ₹1,000 if income ≤ ₹5L); (2) Section 234A – 1% per month simple interest on unpaid tax from 1 August 2026; and (3) Section 234B – 1% per month simple interest on advance tax shortfall from 1 April 2026 if advance tax paid was less than 90% of assessed tax. The total amount depends on your unpaid tax liability and advance tax payment gaps.
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