For a salaried professional, the Income Tax Return (ITR) is usually straightforward because of Form 16. However, mismatches between your declaration and the data in the government’s system (AIS/TIS) can trigger alerts.
If you’ve received an email or SMS from the “IT-Dept,” don’t panic. Understanding which “Section” is mentioned will tell you exactly what to do.
1. Intimation Under Section 143(1): The “Match-Check”
This is the most common notice. It is essentially a comparison between the tax you calculated and the tax the department calculated.
- Why it comes: After your ITR is processed, the system sends this to show if you have a refund, a small tax demand, or if everything is perfectly matched.
- The Fix: If it says “No further action required,” just save it. If there is a “Demand,” check for arithmetical errors and pay the difference.
2. Notice Under Section 139(9): The “Defective Return”
This notice is sent when your ITR is considered incomplete or contains errors that make it invalid.
- Why it comes: Usually happens if you used the wrong ITR form (e.g., filing ITR-1 instead of ITR-2), or if you claimed TDS but didn’t report the corresponding income.
- The Fix: You get 15 days to rectify the defect. You must file a “Revised Return” to fix the error.
3. Notice Under Section 142(1): The “Inquiry Notice”
This is a request for more information. It doesn’t mean you’ve done something wrong; the officer just needs more proof.
- Why it comes: To ask for documents like rent receipts (for HRA), investment proofs (for 80C), or to remind you to file your return if you missed the deadline.
- The Fix: Simply upload the requested documents on the e-filing portal.
4. Notice Under Section 143(2): The “Scrutiny Notice”
This is more serious. It means your return has been selected for a detailed examination.
- Why it comes: Often triggered by high-value transactions (like buying a car or house) that don’t match your reported salary.
- The Fix: You will need to provide a detailed explanation of your income sources and bank statements. It’s best to consult a CA here.
5. Notice Under Section 156: The “Demand Notice”
This is a direct call to pay money to the government.
- Why it comes: It usually follows an assessment where the department finds that you owe extra tax, interest, or a penalty.
- The Fix: You typically have 30 days to pay the amount. Ignoring this can lead to a frozen bank account.
6. Notice Under Section 245: The “Refund Adjustment”
If you are expecting a refund this year but have an unpaid tax bill from a previous year, you get this notice.
- Why it comes: The department is informing you that they are using your current refund to pay off your old debt.
- The Fix: You have 30 days to agree or disagree. If the old demand is a mistake, you must file a “Disagreement” on the portal.
7. Notice Under Section 148: “Income Escaping Assessment”
This is sent when the tax officer has “reason to believe” that you hidden some income in the past.
- Why it comes: Usually due to undisclosed bank interest, capital gains from shares, or property deals that were not reported in previous years.
- The Fix: You will have to refile your return for that specific year and explain the source of that income.
Summary Table for Quick Reference
| Section | Notice Type | Action Required |
| 143(1) | Intimation | Check if tax demand exists |
| 139(9) | Defective Return | Rectify and refile in 15 days |
| 142(1) | Inquiry | Submit documents/proofs |
| 143(2) | Scrutiny | Detailed explanation required |
| 156 | Demand Notice | Pay the due amount in 30 days |
| 245 | Set-off Refund | Consent or Disagree for adjustment |
| 148 | Re-assessment | Explain undisclosed income |
Conclusion
Most income tax notices for employed people are just “reminders” to be more accurate. The key to avoiding them is to always cross-check your Form 16 with your AIS (Annual Information Statement) before clicking “Submit.”
Have you ever received a “Defective Return” notice? Tell us how you resolved it in the comments!

