Summary
For AY 2026-27, the Income Tax Department says returns for income earned in FY 2025-26 are filed under the old Act on the e-filing portal. The portal FAQ states the due date is 31 July 2026, and also mentions 31 August for some non-audit cases. If your case requires a tax audit, the audit report due date is 30 September 2026. For transfer-pricing cases, the portal’s FAQ points to 31 October 2026 for the audit report. Miss the deadline, and you may face late-fee consequences. The portal says belated returns for AY 2026-27 can be filed up to 31 December 2026, subject to conditions.
Introduction
According to the Income Tax Department, returns for FY 2025-26 are filed as AY 2026-27 under the old Act. The portal also says those filings will be done using AY 2026-27 forms on the e-filing portal.
That sounds simple, but the deadline is not the same for everyone. Salaried taxpayers, business owners, audit cases, and transfer-pricing cases can all follow different timelines.
This guide explains the last date, who should file earlier, what happens if you miss the date, and how Epsilon Accounts can help with timely filing in Thane and Mumbai.
What is the ITR filing last date for FY 2025-26?
For most taxpayers, the official portal says the AY 2026-27 return is due by 31 July 2026. The same FAQ also mentions 31 August for non-audit cases in its transition-year guidance.
| Taxpayer type | Key date mentioned by the portal | What it means |
| Regular AY 2026-27 filer | 31 July 2026 | Main filing date for FY 2025-26 return. |
| Some non-audit cases | 31 August 2026 | Transition guidance shown on the portal. |
| Tax audit report cases | 30 September 2026 | Audit report deadline for FY 2025-26. |
| Transfer-pricing audit cases | 31 October 2026 | Audit report timing shown in the portal FAQ. |
The practical takeaway is clear. Do not wait for the last week. Even a small document gap can slow return filing.
Who should file early in FY 2025-26?
Some taxpayers should not wait for the deadline rush. The biggest reason is complexity. If your income has business, capital gains, foreign assets, or audit exposure, your return needs more review.
File early if you fall into any of these groups:
- Salaried individuals with multiple income sources.
- Business owners and freelancers with books to reconcile.
- Companies and LLPs with audit reporting needs.
- Taxpayers claiming relief, loss carry-forward, or foreign tax credit.
A real example is easy to understand. A Thane business owner with GST, TDS, and bookkeeping records should not file in a rush. A review from a gst and income tax consultant can catch mismatches before they become notices.
What happens if you miss the due date?
Missing the deadline can cost you money and flexibility. The portal says a belated return for AY 2026-27 may be filed up to 31 December 2026, if allowed under the law. It also states late fee under the old Act applies.
The late fee is ₹1,000 if total income does not exceed ₹5 lakh, and ₹5,000 in other cases.
There is another important issue. The portal says loss carry-forward depends on filing the return within the due date. That matters for business loss, capital gains loss, and similar claims.
So the cost of delay is not only a penalty. It can also affect refunds, losses, and future tax planning.
How can a chartered accountants firm in Thane help with ITR filing?
A local CA firm helps when your return is not a simple salary-only case. Epsilon Accounts Anusthan Fintech LLP brings over 25 years of combined experience in audit, taxation, accounts, and finance services.
As a chartered accountants firm and financial management company, Epsilon offers income tax filing, GST consultancy, TDS support, accounting, and business financial planning. That makes it useful for individuals, startups, SMEs, and growing businesses.
| Service area | What Epsilon helps with | Why it matters |
| Income tax filing | Individual and company returns | Reduces filing errors. |
| GST support | GST compliance and filing | Helps keep monthly records aligned. |
| Accounting | Tally, data entry, monthly support | Keeps figures ready before ITR filing. |
| Financial planning | Budgeting and forecasting | Improves year-round tax readiness. |
This is especially relevant for businesses in Wagle Estate, Thane, and nearby Mumbai zones. Epsilon’s office is in Fenkin 9, Wagle Estate, Thane 400604.
Why does timing matter more for Mumbai and Thane taxpayers?
Mumbai and Thane taxpayers often manage multiple streams at once. Salary, consulting income, rental income, GST, TDS, and investments can all sit in one return. That increases the chance of mismatch if filing is left late.
The Income Tax Department’s transition guidance also says to keep FY 2025-26 and FY 2026-27 records separate. It specifically advises maintaining clear demarcation of income, expenses, TDS, and advance tax for smooth filing.
That is where local support helps. A nearby consultant can review Form 16, AIS, TDS, business accounts, and audit data together. Epsilon’s service set is built for exactly that kind of coordination.
What should you check before filing your ITR this year?
Before filing, check these items carefully:
- PAN and Aadhaar linkage
- Form 16 and salary details
- AIS and Form 26AS matching
- TDS and advance tax credits
- Business income or capital gains records
- Audit applicability and due date category
If you are a business owner, check whether your books are ready for audit timelines. If you are salaried, check whether deductions and exemptions are backed by documents.
A quick review now is better than a rushed correction later. That is usually the difference between smooth filing and a late-night scramble.
People also ask
What is the last date to file ITR for FY 2025-26?
The Income Tax Department’s FY 2025-26 guidance points to 31 July 2026 for AY 2026-27, with separate timelines for some non-audit and audit cases.
Can I file a belated return after the deadline?
Yes. Belated returns for AY 2026-27 may be filed up to 31 December 2026, subject to the law and applicable late fee.
Does missing the ITR deadline affect losses?
Yes. Loss carry-forward requires filing within the due date. Missing it can affect business loss and capital loss claims.
Should a company in Thane use a CA firm for ITR filing?
Usually yes, especially when audit, GST, TDS, and accounting need to be coordinated. Epsilon offers all of these under one roof in Thane.
Conclusion
For FY 2025-26, the key ITR filing date for AY 2026-27 is 31 July 2026 for most taxpayers, while audit-linked cases follow later timelines. The official portal also allows belated filing up to 31 December 2026, with late-fee consequences.
For taxpayers in Thane and Mumbai, Epsilon Accounts Anusthan Fintech LLP offers income tax filing, GST, accounting, and financial management support as a trusted local chartered accountants firm. That makes deadline planning much easier.
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