Filing your Income Tax Return (ITR) is not just about declaring income—it’s about declaring it correctly. Many taxpayers, including salaried individuals, freelancers, and property owners, receive notices from the Income Tax Department because of small but costly errors in their returns.
In this blog, we’ll explore the most common ITR mistakes, explain how they trigger tax notices, and share real examples (anonymized) from actual assessments. If you’re serious about staying compliant and avoiding scrutiny, read this carefully.
1. Mismatch Between ITR and AIS/TIS or Form 26AS
The Mistake:
- You forget to include income that appears in your Annual Information Statement (AIS) or Form 26AS (e.g., interest from FD, foreign remittance, or property sale).
What Notice You’ll Get:
- Notice under Section 143(1)(a) – Proposed adjustment for mismatch
- Notice under Section 148 – Income escaping assessment (reopening)
Real Example:
A salaried employee forgot to report ₹65,000 interest from a fixed deposit. His AIS showed it, but he ignored it thinking TDS already covered it. Result? A 143(1)(a) notice and demand for differential tax + interest.
✅ Tip: Always reconcile your AIS and TIS with your ITR before submission.
2. Using the Wrong ITR Form
The Mistake:
- Filing ITR-1 even when you have capital gains, foreign income, director status, or foreign assets—all of which disqualify you from using ITR-1 or ITR-4.
What Notice You’ll Get:
- Notice under Section 139(9) – Defective return
- ITR gets treated as invalid if not corrected in time.
Real Example:
A freelancer earning both professional fees and selling mutual funds filed ITR-4. He received a 139(9) defective return notice because capital gains are not allowed in ITR-4.
✅ Tip: Choose the correct ITR form. When in doubt, use ITR-3 or ITR-2 (they cover more cases).
3. Not Reporting Foreign Assets or Income
The Mistake:
- You are a resident taxpayer, but fail to disclose foreign bank accounts, stocks, or property under Schedule FA.
What Notice You’ll Get:
- High-risk cases may get notices under the Black Money Act or foreign assets scrutiny
- Could lead to penalties of ₹10 lakh per year of non-disclosure
Real Example:
An NRI who became a resident again in India in FY 2022-23 didn’t report a dormant US brokerage account. In FY 2023-24, he received a compliance query from the IT Department regarding foreign assets in his AIS.
✅ Tip: If you’re a resident, report all foreign assets—even if no income is earned.
4. Not Reporting Income from Freelancing or Side Gigs
The Mistake:
- You earn money from Upwork, Fiverr, teaching, or Instagram collaborations, but don’t declare it thinking “it’s small” or “already taxed by the client.”
What Notice You’ll Get:
- 143(1)(a) adjustment or 148 notice
- Often flagged via AIS (foreign payments or domestic TDS deductions)
Real Example:
A software developer earning ₹18 lakh from a foreign client didn’t report it, assuming the money was received via PayPal and not taxable. He got flagged in AIS under “foreign remittances” and received a Section 148 notice.
✅ Tip: Declare all global income if you’re a resident, even if no TDS was deducted.
5. Not Filing ITR at All When It’s Mandatory
The Mistake:
- Skipping ITR filing assuming “I had no tax to pay” or “TDS was already deducted.”
When It’s Wrong:
- Your gross income is above basic exemption limit
- You want to carry forward losses
- You did high-value transactions (credit card > ₹10L, property > ₹30L, etc.)
What Notice You’ll Get:
- Non-filer compliance notices or CASS scrutiny
Real Example:
A salaried individual didn’t file ITR thinking TDS already handled his taxes. But he had gains from shares (short-term) worth ₹1.2 lakh. Since TDS didn’t apply, the ITD noticed and sent a compliance query.
✅ Tip: TDS doesn’t absolve you from filing. You must file ITR if you cross any mandated criteria.
6. Claiming Wrong or Inflated Deductions
The Mistake:
- Claiming deductions (like Section 80C, 80D, HRA, interest on housing loan) without valid proofs.
What Notice You’ll Get:
- 143(1)(a) adjustment or full-blown scrutiny assessment under Section 143(2)
Real Example:
A consultant claimed ₹1.5 lakh under 80C for ELSS investments but had only invested ₹80,000. His return was flagged, and he had to provide proof during e-proceedings.
✅ Tip: Keep every deduction backed by a valid document. Don’t overclaim.
7. Ignoring Capital Gains from Mutual Funds or Shares
The Mistake:
- Selling mutual funds or shares and not declaring capital gains
- Thinking “it’s under ₹1 lakh so no need to report” (for LTCG on equity)
What Notice You’ll Get:
- 148 Notice – Income escaping assessment
- Or mismatch alerts in AIS
Real Example:
An investor sold shares for ₹5 lakh, incurring a LTCG of ₹1.8 lakh. He didn’t report it, thinking the broker pays the tax. AIS captured it, and he was served a 148 notice the next year.
✅ Tip: Even exempt income or gains under threshold must be disclosed in the correct schedule.
Final Thoughts: Don’t Invite a Notice – File Smart
Income Tax notices can be avoided by simply:
- Reconciling AIS/Form 26AS with your ITR
- Choosing the right ITR form
- Reporting all incomes honestly
- Keeping documentation handy
If you get a notice, don’t panic. Most are routine and can be resolved if handled correctly and timely. But better yet, avoid errors at the source.
