For millions of Indian taxpayers, the Income Tax Return (ITR) filing deadline is the single most important compliance date of the year. Missing it does not just mean a penalty — it can mean losing carry-forward losses, paying interest on unpaid tax, and facing scrutiny from the Income Tax Department. As a CA in Mumbai advising hundreds of individuals and businesses, we have seen the expensive consequences of missed deadlines. This guide gives you every ITR filing due date for FY 2024–25 (AY 2025–26) so you can plan well in advance.

What Is FY 2024–25 and AY 2025–26?

The Financial Year (FY) 2024–25 runs from April 1, 2024 to March 31, 2025. This is the year in which your income was earned. The Assessment Year (AY) 2025–26 is the year in which that income is assessed and taxed — you file your ITR in AY 2025–26 for income earned in FY 2024–25. This distinction matters because all deadlines, forms, and returns are referenced by the AY.

ITR Filing Due Dates for AY 2025–26 — Category-Wise

The Income Tax Act prescribes different deadlines based on your taxpayer category. Always check for any CBDT extension notifications, as the government occasionally extends deadlines:

Taxpayer Category	Due Date (AY 2025–26)
Individuals, HUFs, BOIs, AOPs (no audit required)	July 31, 2025
Businesses requiring tax audit under Section 44AB	October 31, 2025
Companies (other than those requiring transfer pricing report)	October 31, 2025
Taxpayers with international/specified domestic transactions (Transfer Pricing)	November 30, 2025
Revised return (if original was filed on time)	December 31, 2025
Belated return (if original was missed)	December 31, 2025
Updated return under Section 139(8A)	Within 2 years from end of relevant AY

Who Is Mandatorily Required to File an ITR?

Filing ITR is compulsory if any of the following conditions apply to you for FY 2024–25:

• Your gross total income before deductions exceeds ₹2.5 lakh (₹3 lakh for senior citizens aged 60–79; ₹5 lakh for super senior citizens aged 80+)
• You have deposited more than ₹1 crore in bank current accounts during the year
• You have spent more than ₹2 lakh on foreign travel for yourself or any other person
• Your electricity consumption exceeds ₹1 lakh during the year
• You are a company or a firm, irrespective of profit or loss
• You hold assets or financial interest in entities outside India
• You want to claim a refund of TDS or advance tax paid
• You want to carry forward business losses to future years

"Even if your income is below the taxable limit, filing ITR is often the smartest financial move — it creates a documented income trail for loans, visas, and investments."

Consequences of Missing the July 31, 2025 Deadline

Late Filing Fee Under Section 234F

If you miss the original due date, a late filing fee applies automatically when you file a belated return:

• ₹5,000 if the return is filed after the due date but before December 31, 2025
• ₹1,000 if your total income does not exceed ₹5 lakh (reduced penalty)
• If you miss December 31, 2025 entirely, the ITR cannot be filed at all for that AY (except via Updated Return under Section 139(8A))

Interest Under Section 234A

If you have tax dues remaining unpaid on the due date, interest at 1% per month (simple interest) is levied on the outstanding tax amount from the due date until the actual date of filing. Even a two-month delay on ₹1 lakh of unpaid tax means ₹2,000 in interest — entirely avoidable.

Loss of Carry-Forward Benefits

One of the most painful consequences of a late return is the loss of the right to carry forward certain losses. If you had business losses, capital losses, or speculative losses in FY 2024–25 that you wanted to offset against future income, you must file your ITR on or before the original due date. A belated return forfeits this benefit permanently.

Ineligibility for Certain Deductions

Some deductions and exemptions under the Income Tax Act are available only if the return is filed by the original due date. Filing late may result in disallowance of deductions claimed under sections such as 10A, 10B, 80-IA, 80-IB, and similar provisions.

Belated Return vs Updated Return: What Is the Difference?

Belated Return (Section 139(4))

If you miss the original deadline of July 31, 2025, you can still file a belated return up to December 31, 2025. A belated return attracts the Section 234F late fee but is otherwise treated as a valid return. You can file it, get a refund, and discharge your tax liability — you just lose the carry-forward loss benefit.

Updated Return (Section 139(8A))

Introduced in Budget 2022, the Updated Return allows taxpayers to correct omissions or errors in a previously filed return — or even file for the first time after December 31. However, an Updated Return can only be filed if it results in additional tax payment. It cannot be used to claim a refund or reduce tax liability. An additional tax of 25%–50% of tax and interest is payable on top.

ITR Forms Applicable for AY 2025–26

Choosing the correct form is as important as meeting the deadline. A wrong form renders your return defective:

• ITR-1 (Sahaj) — Individuals with salary/pension, one house property, and other income up to ₹50 lakh
• ITR-2 — Individuals/HUFs with capital gains, more than one house property, or foreign income/assets
• ITR-3 — Individuals/HUFs with income from business or profession
• ITR-4 (Sugam) — Individuals/HUFs/firms opting for presumptive taxation under Sections 44AD, 44ADA, or 44AE
• ITR-5 — Firms, LLPs, AOPs, BOIs (not companies or individuals)
• ITR-6 — Companies other than those claiming exemption under Section 11
• ITR-7 — Trusts, political parties, research institutions, and entities filing under Sections 139(4A) to 139(4F)

How a CA in Mumbai Ensures You Never Miss a Deadline

At KC Shah & Associates, we manage the complete income tax compliance cycle for our clients — individuals, HUFs, startups, and companies across India. Our process includes advance deadline alerts, pre-filing reconciliation of Form 26AS, Annual Information Statement (AIS), and Taxpayer Information Summary (TIS), and same-day filing once approvals are in place. Our outsourced accounting services ensure your books are always ready well before filing season.

Whether you are a salaried individual in Mumbai, a freelancer, or a company director with multiple income streams, having a dedicated CA in Mumbai means you never scramble at the last minute — and you never pay an avoidable late fee.

Conclusion

The ITR filing deadline for most individuals for AY 2025–26 is July 31, 2025. Businesses requiring audit have until October 31, 2025, and companies with transfer pricing have until November 30, 2025. Missing these dates costs money, forfeits tax benefits, and creates compliance risk. Start gathering your Form 16, investment proofs, capital gain statements, and bank statements now. If you need a CA in Mumbai to handle the entire process, reach out to KC Shah & Associates for a free consultation.