Compliance — Notices

Income Tax Notices: Types, 139(9) Defective Return & How to Reply

Most notices are routine: defective returns, AIS mismatches, intimations. Reply online via e-Proceedings within the deadline — 15 days for 139(9). Ignoring is the only real mistake.

Notice types decoded

Notice	Means	Action
139(9) — Defective return	Wrong ITR form, unpaid tax, PAN/name mismatch, missing audit report	Fix + respond in 15 days (extension possible)
143(1) — Intimation	Computer's version of your return (refund/demand/match)	Compare with your ITR; pay demand or await refund
142(1)/143(2) — Scrutiny	Your return picked for detailed check	Submit documents via e-Proceedings; CA recommended
148/148A — Reassessment	Dept believes income escaped assessment	Respond carefully; professional help strongly advised
AIS mismatch / compliance portal	Declared income lower than visible transactions	Reconcile AIS, give feedback, revise/file ITR-U
156 — Demand notice	Tax/interest/penalty payable with deadline	Pay or contest (rectification/appeal) in time

Replying to 139(9) step by step

Read the defect sheet — the portal usually names the exact error and its fix.
Prepare the corrected return (JSON) addressing every defect — don't file a fresh return instead.
Log in → Pending Actions → e-Proceedings → submit response against the notice; keep the acknowledgement.
Can't finish in 15 days? Request an extension before expiry — an unanswered 139(9) makes your return invalid and blocks refunds.

All proceedings are faceless — no office visits; everything on the portal. Verify every notice there (fake notices exist — check the DIN). Fix AIS mismatches first → · Revise / ITR-U routes →

⚠️ Mistake we see: treating 143(1) like scrutiny

Getting an 'intimation u/s 143(1)' is ROUTINE — it's CPC's arithmetic check, and most show zero difference or a small refund adjustment. Real scrutiny starts at 143(2), and even that is faceless e-proceedings now: read, upload, respond — all online, all timestamped. Panicking at 143(1) wastes energy; IGNORING 139(9) (15 days!) or 148 wastes money. Learn which notice is which, then match your heartbeat to the actual stakes.

By TaxSetu Editorial Team · Last reviewed: 7 October 2026

Based on the Income-tax Act 2025, Income Tax Rules 2026 and CBDT notifications; sections per the Income-tax Act 1961 (as amended) with 2025-Act mappings where notified · Verify on the official portal: incometax.gov.in

Keep Reading

NRI TaxationWho is an NRI? 182/60/120-day rules, the RNOR window, NRE vs NRO taxation, DTAA relief wit…Advance TaxAdvance tax 2026-27: the ₹10,000 rule, 15%/45%/75%/100% instalments (Jun/Sep/Dec/Mar), the…Senior Citizens60+: ₹3L exemption (80+: ₹5L) in old regime, ₹50k 80TTB interest shield, no advance tax, ₹…Advance Tax ToolEnter estimated yearly tax minus expected TDS → get Jun/Sep/Dec/Mar instalments (15/45/75/…

Frequently Asked Questions

What is a 139(9) defective return notice?+

The department found a flaw — wrong ITR form, unpaid tax, PAN/name mismatch or missing audit report. Fix it and respond online within 15 days (extension possible).

What happens if I ignore a tax notice?+

For 139(9), your return becomes invalid and refunds get blocked. For scrutiny or demands, ex-parte orders and penalties follow. Replying on time is always the cheapest option.

How do I reply to scrutiny notices?+

Entirely online via e-Proceedings on the portal — upload the exact documents asked, within the deadline. Take a CA's help for 142(1)/143(2)/148 notices.

How do I check if a notice is genuine?+

Verify it on the e-filing portal under Pending Actions / e-Proceedings and check its DIN (Document Identification Number) — fake email notices exist.