Defective Return Notice 139(9): Fix It in 15 Days

A defective return notice under section 139(9) means the Income Tax Department found your return incomplete or inconsistent and will not process it as it stands. You get 15 days from receiving the notice, or the time written in it, to correct the defect on the e-filing portal. Ignore it and the return can be treated as never filed.

What is a defective return?

It is a return the department cannot process because something in it is missing or does not add up. It is not a tax demand and it is not a scrutiny notice. Think of it as the form being handed back to you across the counter with a note saying what to fix.

Why does the rule exist? Returns are processed by computer at the Centralised Processing Centre (CPC). If your income, tax credits and schedules contradict each other, the system cannot work out your tax or your refund. So it stops and asks.

The notice comes to your registered email ID, and it also sits in your portal account. On the portal, your return status changes to "Defective".

Why did you get it?

The portal lists the common reasons. For an online seller, the first two cause most of the trouble.

Form 26AS is your annual tax statement. It shows the tax deducted in your name and the amount it was deducted on. If you sell on a marketplace, read our guide to TDS under section 194-O to see where that gross figure comes from.

How long do you have?

Fifteen days from the date you receive the notice, or the period the notice itself gives. Need more time to pull your books together? The portal lets you seek an adjournment and ask for an extension. Ask before the date passes, not after.

Is the filing window for that year still open? Then you have a second option: file a fresh or revised return with the defect corrected, in place of responding. For FY 2025-26, a belated return can be filed until 31 December 2026. Once the window closes, responding to the notice is the only route.

How to respond on the e-filing portal

1. Log in to the e-filing portal with your PAN.
2. Open the notice. From the dashboard go to Pending Actions, then e-Proceedings. Find the defective notice and click View Notice. Download the PDF and read the error description.
3. Click Submit Response. Each defect is listed separately.
4. Choose Agree or Disagree for each defect. Agree means you will correct the return. Disagree means you explain in writing why the return is right as filed.
5. If you agree, upload the corrected return. Select the offline mode of response, choose the ITR type, and attach the corrected JSON file prepared in the department's return utility.
6. Submit and save the Transaction ID. A confirmation email follows. You can see what you sent under View Response.

One caution before step 6. The portal does not let you update or withdraw a response. Check the corrected file against your Form 26AS and AIS line by line first. Our note on checking AIS and 26AS before filing shows what to compare.

A worked example

Kavita sells kurtis on a marketplace and keeps regular books. In FY 2025-26 her gross sales through the platform were Rs 18,40,000. The marketplace deducted TDS of Rs 1,840, which is 0.1%, and her Form 26AS shows both numbers.

The platform kept Rs 3,50,000 as commission, shipping and other fees, and paid her Rs 14,90,000. Her other costs were Rs 11,00,000. In her return she entered sales of Rs 14,90,000, because that is what reached her bank, and claimed the TDS of Rs 1,840.

The notice arrives: receipts in Form 26AS are Rs 18,40,000, but the return shows Rs 14,90,000.

Her profit and her tax do not change. Only the presentation does: gross sales on top, fees as an expense. She selects Agree, uploads the corrected JSON, and the return goes back into processing. Note that this holds because she keeps books. If you declare income on a presumptive basis as a percentage of turnover, a higher turnover figure changes your income, so rework the numbers with care.

What if you do not respond?

The portal's wording is that the return may be treated as invalid. In plain terms, you have not filed for that year. What does that cost?

• Your refund, if one was due, is not processed.
• Losses you wanted to carry forward can be lost.
• Some exemptions that depend on a valid return can be lost.
• Interest and penalty for not filing can follow.

You may then have to start again with a belated return, which carries a late fee of Rs 1,000 or Rs 5,000, or with an updated return, which costs additional tax. A fifteen-day fix is far cheaper.

The mistake people usually make

They treat the email as routine and leave it unread. The second mistake is the opposite: they panic, click Agree, and upload the same file again with one field changed, without finding the real mismatch. Since the response is final, a rushed upload can leave you with a second defect and less time.

A quieter mistake is using the wrong return form in the first place, for example a salary form for business income. If that is your defect, start with which ITR form to file.

Should you fix it yourself?

A name mismatch or a skipped schedule is a do-it-yourself job. Take help when the defect is about receipts not matching Form 26AS, when the balance sheet is missing, or when you plan to disagree. Those need someone who can rebuild the figures and write a reply that stands on its own.

Frequently asked questions

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