Income Tax Notice Reply Guide: Types, Deadlines & How to Respond
Don't ignore income tax notices. This guide explains every type of IT notice, the deadline to respond, and the correct way to reply to avoid penalties.
Types of income tax notices and what they mean
Here are the most common income tax notices and their significance:
| Section | Notice Type | Common Reason | Response Time |
|---|---|---|---|
| 139(9) | Defective Return | Wrong ITR form, missing schedules, mismatch | 15 days |
| 143(1) | Intimation / Demand | Auto-processing mismatch, tax demand or refund | 30 days (for demand) |
| 142(1) | Preliminary Enquiry | Additional information or documents required | 15+ days as specified |
| 143(2) | Scrutiny Notice | Case selected for detailed assessment | Within time specified |
| 148 | Reassessment | Income escaped assessment — up to 6-10 years back | 30 days |
| 156 | Demand Notice | Tax, interest or penalty demand after assessment | 30 days |
| 131 | Summons | Attendance or document production required | As specified |
| 245 | Set-off of refund | Existing demand being adjusted against refund | 30 days |
Section 143(1) — Most common notice
This is an automated intimation sent after initial processing of your ITR. It shows: tax computed by the system vs tax you declared. It can result in a demand (pay more), refund, or no action needed. Common reasons for a demand:
- Income not declared in ITR but visible in Form 26AS or AIS
- TDS mismatch — you claimed TDS credit that doesn't match Form 26AS
- Wrong deduction claimed or deduction computed differently
- Wrong ITR form causing schedule mismatch
- High-value transactions flagged in AIS not explained
- Rebate under Section 87A incorrectly applied
Section 148 reassessment — Most serious notice
A Section 148 notice means the tax authority believes income escaped assessment in a past year. This is the most serious notice type. Key facts:
- Can be issued up to 3 years from end of relevant AY (if escaped income < ₹50L)
- Up to 10 years if escaped income exceeds ₹50L
- First step: request the 'reasons to believe' from the Assessing Officer
- You can object to the notice if the reassessment is time-barred or lacks valid reasons
- File a revised/fresh return in response — do not ignore
- All bank statements, income proofs and supporting documents for the year must be compiled
How to respond to any income tax notice
A structured approach to notice response:
- Step 1: Read the notice carefully — note the section, AY, deadline and specific query
- Step 2: Gather all supporting documents — Form 26AS, AIS, TIS, Form 16, bank statements, investment proofs
- Step 3: Reconcile the notice query against your ITR — identify the mismatch
- Step 4: Prepare a written response with clear explanation and supporting annexures
- Step 5: Log in to income tax portal (incometax.gov.in) → 'Pending Actions' → submit response
- Step 6: Keep acknowledgement of submission
- Step 7: For scrutiny notices (143(2)), engage a CA — the process involves hearings and working papers
What NOT to do with a tax notice
Common mistakes that make notices worse:
- Ignoring the notice — always responds by the deadline, even if to request more time
- Responding without reconciling Form 26AS/AIS with your ITR
- Filing a revised return without understanding the exact mismatch
- Paying the demand without verifying whether it is correct
- Sharing documents without a CA review for scrutiny notices
- Missing the 30-day payment deadline on a demand — interest continues to accrue
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