.png)
Section 270A: When Under-Reporting Your Income Costs More Than You Saved
- Legal Sections
- 02 May, 2026
Section 270A: When Under-Reporting Your Income Costs More Than You Saved
Every year, millions of salaried Indians file their income tax returns. Some make honest mistakes. Others deliberately claim deductions they are not entitled to, or simply forget to report all their income. What many don't realise is that since Assessment Year 2017–18, a single provision, Section 270A of the Income Tax Act, 1961 — governs penalty for under-reporting and misreporting of income, with consequences that can be financially devastating.
What is Section 270A?
Section 270A was introduced by the Finance Act, 2016, replacing the earlier Section 271(1)(c). It is triggered when the Assessing Officer (AO) finds that a taxpayer has either under-reported or misreported their income.
- Under-reporting is when the income shown in your return is less than the income the AO assesses, due to omissions, incorrect claims, or computational errors.
- Misreporting is a more serious offence involving fraud, false claims, or suppression of facts, and attracts a significantly higher penalty.
The Two Tiers of Penalty
| Type | Nature | Penalty Rate |
|---|---|---|
| Under-reporting | Omissions, incorrect claims, computational errors | 50% of tax on under-reported income |
| Misreporting | Fraud, false entries, inflated deductions, suppression | 200% of tax on misreported income |
The penalty is calculated on the incremental tax that arises due to the discrepancy, not on your total tax liability.
A Case Study: A Salaried Professional Who Got It Wrong
Consider a senior software engineer earning a salary of Rs.18,00,000 per annum. During FY 2023–24, he also received Rs.2,40,000 in freelance income, deposited in a separate savings account but not disclosed in the ITR. Additionally, he claimed an 80C deduction of Rs.1,50,000, though the AO determined actual eligible investments were only Rs.25,000 — an inflation of Rs.1,25,000.
Income Comparison
| Head | Declared in ITR | As Determined by AO | Difference |
|---|---|---|---|
| Salary income | Rs.18,00,000 | Rs.18,00,000 | No change |
| Freelance / other income | Rs.0 | Rs.2,40,000 | +Rs.2,40,000 |
| Section 80C deduction | Rs.1,50,000 | Rs.25,000 | Excess of Rs.1,25,000 |
| Net taxable income | Rs.16,50,000 | Rs.20,15,000 | +Rs.3,65,000 |
Step-by-Step Penalty Calculation
Step 1: Tax on Declared Income (Rs.16,50,000)
Using the old tax regime (standard deduction already applied):
| Slab | Amount | Tax |
|---|---|---|
| Up to Rs.2,50,000 | Rs.2,50,000 | Nil |
| Rs.2,50,001 – Rs.5,00,000 @ 5% | Rs.2,50,000 | Rs.12,500 |
| Rs.5,00,001 – Rs.10,00,000 @ 20% | Rs.5,00,000 | Rs.1,00,000 |
| Rs.10,00,001 – Rs.16,50,000 @ 30% | Rs.6,50,000 | Rs.1,95,000 |
| Total tax before cess | Rs.3,07,500 | |
| Health & Education Cess @ 4% | Rs.12,300 | |
| Tax on declared income (A) | Rs.3,19,800 |
Step 2: Tax on Assessed Income (Rs.20,15,000)
| Slab | Amount | Tax |
|---|---|---|
| Up to Rs.2,50,000 | Rs.2,50,000 | Nil |
| Rs.2,50,001 – Rs.5,00,000 @ 5% | Rs.2,50,000 | Rs.12,500 |
| Rs.5,00,001 – Rs.10,00,000 @ 20% | Rs.5,00,000 | Rs.1,00,000 |
| Rs.10,00,001 – Rs.20,15,000 @ 30% | Rs.10,15,000 | Rs.3,04,500 |
| Total tax before cess | Rs.4,17,000 | |
| Health & Education Cess @ 4% | Rs.16,680 | |
| Tax on assessed income (B) | Rs.4,33,680 |
Step 3: Tax on Under-Reported Income
Under-reported income = Rs.20,15,000 – Rs.16,50,000 = Rs.3,65,000
Tax on under-reported income = B – A = Rs.4,33,680 – Rs.3,19,800 = Rs.1,13,880
Step 4: Penalty Computation
The Rs.3,65,000 discrepancy has two components with different characters:
| Component | Amount | Classification | Penalty Rate |
|---|---|---|---|
| Undisclosed freelance income | Rs.2,40,000 | Under-reporting | 50% |
| Inflated 80C deduction | Rs.1,25,000 | Misreporting (false claim) | 200% |
Attributing the incremental tax proportionally:
| Income Component | Amount | Proportion | Tax Attributed |
|---|---|---|---|
| Undisclosed freelance income | Rs.2,40,000 | 65.75% | Rs.74,880 |
| Inflated 80C deduction | Rs.1,25,000 | 34.25% | Rs.39,000 |
| Total under-reported income | Rs.3,65,000 | 100% | Rs.1,13,880 |
| Penalty Head | Calculation | Amount |
|---|---|---|
| Penalty on under-reporting | Rs.74,880 × 50% | Rs.37,440 |
| Penalty on misreporting | Rs.39,000 × 200% | Rs.78,000 |
| Total penalty u/s 270A | Rs.1,15,440 |
The attempt to save roughly Rs.37,500 in taxes through a false 80C claim and unreported income ultimately resulted in a total outflow of over Rs.2,29,320 (tax demand of Rs.1,13,880 + penalty of Rs.1,15,440), over 6x what was saved. This does not include interest under Sections 234B and 234C.
Could This Have Been Avoided?
Section 270A(6) provides immunity from penalty in certain situations. If the freelance income and correct 80C figures had been voluntarily disclosed before the assessment was completed, and the AO was satisfied there was no concealment, the penalty could have been waived. However, once assessment proceedings are initiated based on information from TDS data or bank statement analysis, this window narrows considerably.
Key Takeaways for Salaried Taxpayers
- Always disclose all income, including freelance, interest, and rental, regardless of the source.
- Claim only deductions you can prove with documentary evidence. Inflating 80C is treated as misreporting, not a simple error.
- The AO cross-references your bank statements, Form 26AS, and AIS. Omissions are increasingly easy to detect.
- Section 270A penalty is on top of the tax demand, it is not a replacement. You pay both.
- When in doubt, file a revised return before the due date, or consult a tax advisor before filing the original return.
Disclaimer: The figures in this post are illustrative. Tax computations depend on individual facts and the applicable tax regime chosen. Consult us for advice specific to your situation.