Received an email or SMS about a defective return? You have 15 days. This guide explains every defect, both response options, the exact portal steps, and what happens if you miss the deadline.
What is a Defective Return Notice Under Section 139(9)?
A defective return notice under Section 139(9) of the Income Tax Act, 1961 is issued by the Centralised Processing Centre (CPC) when your filed Income Tax Return contains an error, omission, or inconsistency that prevents the department from processing it accurately.
To be clear about what this notice is — and what it is not:
What Section 139(9) IS
- A correction notice — the department has received your return but found it technically incomplete
- An opportunity to fix errors before they become adverse assessments
- A notice that gives you 15 days to correct and resubmit — no penalty for the defect itself
- Issued by the automated CPC system, not a human Assessing Officer
- Fully resolvable online through the IT portal’s e-Proceedings section
What Section 139(9) is NOT
- Not a tax demand — no additional tax is being claimed at this stage
- Not a scrutiny notice (Section 143(2)) — that is a separate, more serious proceeding
- Not a penalty notice — no penalty is levied merely for a defect
- Not safe to ignore — ignoring it has the same consequences as never filing your return
How you receive the notice
The department sends the defective return notice via email to your registered email address, and via SMS to your registered mobile number. The notice is also visible inside the e-filing portal under Pending Actions → e-Proceedings → For Your Action. The notice contains a specific defect description and often an error code identifying the exact issue found in your return.
Common Defects — Find Yours and Know the Fix
Search your error description or defect code below. Every card shows the defect, why it happens, and exactly how to fix it.
Showing all 14 common defects. Type above to filter.
Common trigger
Most common defect
Rising in 2026
Codes 202 / 203
Audit cases
ITR-3 / ITR-4
Code 31
Payment mismatch
Payment schedule
Personal info
Capital gains
Deductions
NRI / foreign
Refund account
Where to Find the Notice on the Portal
Do not wait for a letter or email. Always check your IT portal inbox proactively after filing your ITR, especially if you receive an SMS alert. The notice is available at:
Finding your 139(9) notice on incometax.gov.in
- Log in at incometax.gov.in using your PAN and password
- From the Dashboard, go to Pending Actions → e-Proceedings
- Click on “For Your Action” tab
- Select “View Notices” — your 139(9) notice will appear here with the assessment year, date of issue, and defect details
- Click on the notice to read the full text and see the defect code
- The notice also appears under e-File → Income Tax Returns → View Filed Returns — look for the return with status “Defective”
The notice will clearly state: the assessment year, the original return filing date, a description of the defect(s) found, and the deadline for response (usually 15 days from the notice date). Read it carefully — you need to address every defect listed, not just one.
Two Response Options: Agree or Disagree
When responding to a Section 139(9) notice on the portal, you are given two paths. Choosing the right one depends on whether the defect identified by the CPC is actually valid.
✅ Option 1 — Agree with the defect
- Use this when the defect described is correct — you made an error
- You will be directed to a correction interface where you can fix the specific defect online, or upload a corrected JSON file
- After correction, submit the updated return — it is treated as your response to the notice
- The filing date is preserved as the original date (e.g. 15 July 2026) — not the correction date
- If additional tax is due after correction, pay it as self-assessment tax first, then submit
- Most taxpayers should use this path
⚠️ Option 2 — Disagree with the defect
- Use this only if the defect described is genuinely incorrect — the CPC made an error in identifying the defect
- You must provide a written explanation of why the notice is incorrect
- Once submitted, the response cannot be updated or withdrawn — choose carefully
- If the AO disagrees with your explanation, the return may still be treated as defective
- Consider consulting a CA before disagreeing — an incorrect “disagree” response can make things worse
- Example use: AIS showed duplicate income that you already disputed via AIS feedback
Critical: once submitted, your response cannot be withdrawn
The IT portal does not allow you to modify or recall a submitted response to a 139(9) notice. Before clicking the final submit button, review your corrected return completely — income, deductions, tax paid, bank account — to ensure all defects are addressed and no new errors are introduced.
Step-by-Step Response Guide — Portal Walk-Through
Follow these steps exactly when responding to your defective return notice. Allow at least 30–45 minutes for this process.
Understand the defect before touching anything
Read the notice in full. Note the exact defect(s) described, the error code if provided, and the deadline date. Cross-check the defect against your original ITR using the ITR utility or PDF acknowledgement. If the defect involves AIS/26AS mismatch, download both documents from the portal and compare with your ITR line by line. Do not start the correction until you know exactly what needs to change.
Fix the underlying issue in your ITR data
Prepare your corrected ITR data before going to the portal. This means:
- If wrong form: switch to the correct form and re-enter all data
- If missing income: add the unreported income, recalculate deductions and tax liability
- If missing Balance Sheet/P&L: prepare the financial statements with your CA
- If tax shortfall: pay self-assessment tax via Challan 280 on the portal first, note BSR code and serial number
- If challan details wrong: verify against NSDL challan status portal
Navigate to the notice on the portal
Log in to incometax.gov.in → Pending Actions → e-Proceedings → For Your Action → View Notices. Find the Section 139(9) notice. Click on it to open the response window.
Choose your response type
The portal will show you two options: “Agree” or “Disagree.” For most taxpayers, select Agree. The portal then takes you to either an online correction interface or prompts you to upload a corrected JSON file (the XML/JSON file generated by the ITR utility software).
Submit the corrected return / online correction
There are two sub-paths after choosing “Agree”:
- Online correction: For simple defects (wrong field, missing entry), the portal opens the ITR form directly for editing. Make the specific correction and proceed to verification.
- Offline correction (JSON upload): For complex corrections, download the ITR utility from the portal, make corrections in the utility, generate the JSON file, and upload it as your corrected return in the e-Proceedings response window.
In both cases, after making corrections, you will be directed to verify the return using Aadhaar OTP, EVC, or another available verification method.
Verify and submit
After uploading the corrected return, complete e-verification using Aadhaar OTP, net banking EVC, or another available method. Without verification, the corrected return is not considered filed. Once verified, the portal will show your return status as “Successfully submitted” in e-Proceedings. You will receive an acknowledgement email and the defect status on the portal will update.
Check return status after 3–5 days
After responding, check your return status under e-File → Income Tax Returns → View Filed Returns. The status should move from “Defective” to “Successfully submitted” and eventually “Processing.” If a refund was pending, it should now enter the processing queue. If the status still shows “Defective” after 7 days, contact the IT helpline (1800 103 0025) or raise a grievance on the portal.
Consequences of Not Responding to the Notice
This is the most important section for anyone considering ignoring or delaying their response. The consequences of a non-response are severe and some are permanent.
Your return is treated as if it was never filed
Confirmed by official CBDT FAQs: If you fail to respond to the defective notice within the specified time, your return is treated as invalid. From a legal standpoint, this is equivalent to not having filed your return at all for that assessment year. Every consequence of non-filing then applies.
| Consequence | What it means | Reversible? |
|---|---|---|
| Return treated as invalid | Your original filing date is lost. You are treated as a non-filer for the assessment year. | Partially — see below |
| Refund not processedIncluding TDS refund | All refunds — including TDS refunds from salary, bank interest, and professional fees — are withheld until a valid return exists. | Yes — after filing valid return |
| Capital losses cannot be carried forwardBusiness losses, speculative losses | Carry-forward of capital losses, business losses, and speculative losses requires a valid, on-time return. An invalid return forfeits this right permanently for the affected year. | No — permanently lost |
| Interest under Section 234ALate filing interest | Interest at 1% per month accrues from the original due date (31 July 2026) to the date a valid return is eventually filed. | Partially — stops on new filing |
| Late fee under Section 234F₹5,000 penalty | A late filing fee of ₹5,000 (₹1,000 if income ≤ ₹5 lakh) applies to any return filed after the original due date of 31 July 2026. | Partially — pay when refiling |
| Loss of specific deductions / exemptionsTime-sensitive claims | Certain deductions and exemptions require a return to be filed on time. An invalid return may result in denial of these claims during assessment. | Likely lost |
| Scrutiny / reassessment risk | A non-filer status or invalid return may increase the probability of scrutiny or reassessment, especially where AIS shows significant income. | Depends on facts |
139(9) Response vs Revised Return — Which Path to Take?
This is a common source of confusion. You have multiple ways to correct a filed return — here is the decision logic to determine the right path.
🔀 Decision guide — choose your correction path
Pro tip: File a revised return AND respond to the notice
If you are within the revised return window (before 31 December 2026), the safest approach is to file a revised return under Section 139(5) with all corrections, AND note in the e-Proceedings portal that you have filed a revised return addressing the defect. This dual approach ensures the portal’s “pending” flag is cleared and the defect is formally responded to, avoiding any procedural ambiguity.
What If You Missed the 15-Day Deadline?
If the 15-day window has passed without a response, here is what is available to you — in order of preference.
Request an extension from the Assessing Officer
The 15-day deadline can be extended by the AO if you write to them explaining the reason for delay. This is discretionary — the AO can grant or refuse it. File the extension request as early as possible after missing the deadline, with a clear reason (illness, technical difficulty, CA unavailability). Submit it via the grievance mechanism on the IT portal or through the AO’s office.
File a revised return under Section 139(5) — if still within 31 Dec 2026
Even if the 139(9) notice deadline has passed, you can file a revised return under Section 139(5) until 31 December 2026 (for AY 2026-27). A correctly filed revised return supersedes the defective original return and the defect is effectively cured. This is your best option if the AO has not yet passed an order treating the return as invalid.
File a belated return under Section 139(4) — up to 31 December 2026
If the original filing date has also passed and your return is now invalid, file a belated return. The late fee under Section 234F applies (₹5,000 or ₹1,000 if income ≤ ₹5 lakh), and interest under Sections 234A/B/C will accrue. Critically: you cannot carry forward capital losses or business losses in a belated return — this loss is permanent.
ITR-U (Updated Return) under Section 139(8A) — up to 48 months
If all above windows have closed, you can file an Updated Return (ITR-U) for up to 48 months from the end of the relevant assessment year. For AY 2026-27, ITR-U can be filed until 31 March 2031. Important restrictions: ITR-U can only be used to add income or pay more tax — not to claim refunds, carry forward losses, or reduce tax. Additional tax of 25–70% of the additional tax and interest applies depending on timing.
Frequently Asked Questions
Received a 139(9) Notice? Act Before the 15-Day Window Closes
Every defect is fixable — but only within the deadline. Our senior CAs will identify the exact defect, prepare the corrected return, and submit the portal response on your behalf so your filing date and carry-forward rights are preserved.