Belated ITR Filing AY 2026-27: Last Date, Fee & Process

Every year, thousands of taxpayers in Delhi miss the original due date for filing their Income Tax Return. Some are waiting for a Form 16 or a corrected AIS, some are busy with business work, and some simply forget. If you are one of them, the good news is that the Income Tax Act still gives you a second chance. For Assessment Year 2026-27 (Financial Year 2025-26), you can file a belated return up to 31 December 2026. In this guide, our Chartered Accountants at Corporate Seva Kendra explain the last date, the late fee, the interest, the losses you can and cannot carry forward, and the exact process to file a belated ITR without further trouble.

What Is a Belated Return?

A belated return is an Income Tax Return filed after the original due date has passed. It is filed under Section 139(4) of the Income Tax Act, 1961. The return is accepted by the department, processed in the normal way, and you can still receive your refund if you are eligible for one. The only difference is that you pay a late filing fee and interest on any unpaid tax, and you lose a few benefits that are available only to taxpayers who file on time.

Many people think that once July is over, it is too late to file. That is not correct. As long as the belated return window is open, you can file your return, regularise your tax record and avoid bigger problems later.

ITR Due Dates for AY 2026-27: Where Do You Stand Today?

For FY 2025-26, the original due date was 31 July 2026 for salaried individuals and other non-audit cases filing ITR-1 or ITR-2. For non-audit business and professional taxpayers filing ITR-3 or ITR-4, the due date was 31 August 2026. Both of these dates have already passed. If you are in either group and have not filed yet, you now need to file a belated return.

Companies and taxpayers whose accounts need a tax audit still have time, as their original due date is 31 October 2026. If you fall in this group, do not wait for the last week. Filing before 31 October keeps you out of the belated category completely.

For everyone who has missed the original due date, the last date to file a belated return for AY 2026-27 is 31 December 2026. After this date, the only option left is an updated return, which is costlier. We explain this later in the article.

Late Filing Fee Under Section 234F

When you file after the due date, Section 234F applies. The late fee is Rs. 5,000 if your total income is above Rs. 5 lakh. If your total income is up to Rs. 5 lakh, the fee is reduced to Rs. 1,000. This fee has to be paid before you submit the belated return on the e-filing portal, and it is added to your tax liability automatically in most utilities.

It is worth noting that the fee does not depend on how late you are. Filing in October or in December attracts the same Section 234F fee. However, the interest keeps growing every month, so there is no benefit in delaying further.

Interest Under Section 234A

If you still owe tax after adjusting your TDS, advance tax and self-assessment tax, you have to pay interest under Section 234A. The rate is 1 percent per month or part of a month, calculated on the unpaid tax from the original due date until the date you actually pay. Even one day into a new month is counted as a full month, so paying a few days earlier can sometimes save you a whole month of interest.

If your TDS already covers your entire tax liability and nothing is payable, then no Section 234A interest arises. Only the Section 234F fee applies in that case. This is common for salaried employees, and it is the reason a CA should first calculate your exact liability before you pay anything.

What Benefits Do You Lose by Filing Late?

The biggest loss is related to carry forward of losses. If you have a capital loss, a business loss, or a loss from speculative activity, you cannot carry it forward to future years if you file a belated return. The one exception is loss from house property, which can still be carried forward even in a belated return. For investors who sold shares or mutual funds at a loss this year, and for small traders, this can be a serious financial setback, as the loss could have reduced tax in the next eight years.

The second point is the choice of tax regime. If you have business or professional income, the rules for opting out of the new tax regime depend on filing the required form within the time allowed. Missing the due date can limit your options, so a belated filer with business income should take professional advice on which regime applies before filing.

Also remember that interest on your refund is calculated from the date you file the return and not from the start of the year. A refund can still come, but it will not include interest for the period before you filed.

Can You Still Claim Deductions and a Refund?

Yes. Most deductions under Chapter VI-A, such as Section 80C, 80D and 80G, can still be claimed in a belated return, provided you have the proper proofs and are filing under the regime that allows them. If excess TDS has been deducted from your salary, interest, or professional fees, you can claim a refund through the belated return as well. Many taxpayers in Delhi, especially freelancers and consultants whose clients deduct TDS under Section 194J, miss the deadline and then discover that a refund was waiting for them.

Documents Required to File a Belated ITR

Keep your PAN and Aadhaar ready, and make sure they are linked. You will need your Form 16 if you are a salaried employee, along with salary slips for the year. Download your Form 26AS and Annual Information Statement (AIS) from the income tax portal, because the department compares your return with these records. Bank statements, interest certificates from banks and post offices, capital gains statements from your broker, rent receipts, home loan interest certificate, and investment proofs for deductions are also needed. Business and professional taxpayers should keep their profit and loss account, balance sheet, GST returns and bank statements ready.

Step-by-Step Process to File a Belated Return

First, log in to the income tax e-filing portal with your PAN and password. Second, choose the assessment year as 2026-27 and select the filing type as original or belated return under Section 139(4). Third, pick the correct ITR form. Salaried individuals with simple income usually use ITR-1, those with capital gains or more than one house property use ITR-2, and business or professional taxpayers use ITR-3 or ITR-4.

Fourth, review the pre-filled data carefully and match it with Form 26AS and AIS. Fifth, calculate your tax, including the Section 234F fee and the Section 234A interest, and pay any balance through challan. Sixth, submit the return and verify it. Verification is compulsory, and an unverified return is treated as if it was never filed. You can e-verify using Aadhaar OTP, net banking or your bank account's pre-validated EVC within the time limit allowed by the department.

What If You Miss 31 December 2026 Also?

If the belated window also closes, you can still file an updated return, also known as ITR-U, under Section 139(8A). It can be filed within 48 months from the end of the relevant assessment year, which means up to 31 March 2031 for AY 2026-27. But an updated return comes with additional tax on the tax and interest payable, and the percentage increases the longer you wait. It also cannot be used to claim a refund or to reduce your tax liability, so it is meant only to disclose income and pay the tax. Compared with this, a belated return is much cheaper and simpler. This is why you should file before 31 December and avoid the updated return route.

Risks of Not Filing at All

Ignoring the return completely invites notices. The department already has your income details through TDS data, AIS, bank interest and high-value transaction reports. If the income shows in AIS and no return is filed, you may receive an intimation or a notice asking for an explanation. In serious cases of unreported income, penalty and even prosecution provisions can apply. A notice is always more stressful and more expensive than a belated return. If you have already received one, our team can help you with a proper reply to income tax notice.

Common Mistakes to Avoid While Filing a Belated Return

The most common mistake is filing without checking AIS, which leads to mismatched income and later notices. The second is choosing the wrong ITR form, which can make the return defective. The third is forgetting to pay the Section 234F fee and interest before submission, causing a demand later. The fourth is not verifying the return after submission. The fifth is ignoring bank interest and small capital gains, because the department can see all of it. Taking help from a qualified Chartered Accountant removes these risks and gives you peace of mind.

Why File Your Belated ITR With Corporate Seva Kendra in Delhi?

Corporate Seva Kendra is a Delhi-based firm of experienced Chartered Accountants serving salaried individuals, freelancers, traders, professionals, startups and companies. Our team first reviews your Form 26AS and AIS, calculates your exact liability including the Section 234F fee and Section 234A interest, and advises you on the best tax regime. We prepare the correct ITR form, file it on time within the belated window and help you e-verify it. If a refund is due, we follow it up until it reaches your account. You can read more about our Income Tax Return filing service, or take an online tax consultancy if you prefer to talk from home. If your business also needs a registration, see our guide on GST registration in Delhi.

Our office is at 312A, 3rd Floor, Metroplex East Mall, Radhu Palace, near Nirman Vihar Metro Station, Delhi-110092. You can call us on +91 99909 49449 or write to corporatesevakendra@gmail.com. Clients from East Delhi, Laxmi Nagar, Preet Vihar, Mayur Vihar, Karkardooma and the rest of Delhi NCR can also connect with us online.

Frequently Asked Questions (FAQs)

1. What is the last date to file a belated ITR for AY 2026-27?

The last date to file a belated return for AY 2026-27 is 31 December 2026. After that, only an updated return can be filed.

2. How much is the penalty for filing ITR late?

A late filing fee under Section 234F applies. It is Rs. 5,000 for total income above Rs. 5 lakh and Rs. 1,000 for total income up to Rs. 5 lakh. Interest under Section 234A is charged separately if any tax is payable.

3. Is there any penalty if I have no tax to pay?

If your income is above the basic exemption limit, the Section 234F fee still applies even when no tax is payable. Interest under Section 234A applies only if there is unpaid tax.

4. Can I get a refund if I file a belated return?

Yes, a refund can be claimed in a belated return if excess tax has been paid or deducted. Interest on the refund is calculated from the date of filing.

5. Can I carry forward losses in a belated return?

No, except for loss from house property. Capital losses, business losses and speculative losses cannot be carried forward if the return is filed after the due date.

6. Can I revise a belated return?

Yes, a belated return can be revised if you find a mistake, but only within the time limit allowed under the Act. It is better to file it correctly the first time with professional help.

7. What happens if I do not file my ITR even after 31 December 2026?

You can file an updated return within 48 months, but you will have to pay additional tax, and you cannot claim a refund through it. You may also receive notices from the department in the meantime.

8. Can Corporate Seva Kendra file my belated return online from outside Delhi?

Yes. Our Chartered Accountants handle the full process online, so you can share your documents by email or WhatsApp and complete everything without visiting our office.

Disclaimer: This article is for general information only. Due dates, fees and rules may change through notifications from the CBDT, so please confirm your specific case with a Chartered Accountant before filing.