Section 270A of the Income Tax Act, 1961 sets the penalty for under-reporting income at 50% of the tax payable on the under-reported amount, and raises it to 200% when the under-reporting qualifies as misreporting. The provision applies to assessments for Assessment Year 2017-18 and every year after; for AY 2016-17 and earlier, the older Section 271(1)(c) still governs.1Income Tax Department. Penalties The rates are fixed, not ranges, and the law spells out exactly which behaviors push a case from the lower rate to the higher one.
The penalty can be initiated by the Assessing Officer, the Commissioner (Appeals), or the Principal Commissioner during or after an assessment or reassessment. It is triggered whenever the assessed income exceeds what you originally reported, subject to the exclusions covered further down. If you have received a notice, the first thing to check is which section is cited: that tells you which framework you are working within.
How Under-reported Income Is Calculated
The calculation is a subtraction, but the two numbers you subtract depend on your situation.
- If you filed a return and this is the first assessment, under-reported income is the assessed income minus the income processed under Section 143(1)(a). If there was no such processing, the comparison is against the income declared in your return.
- If you did not file a return at all, under-reported income is the assessed income minus the basic exemption limit for that year.
- In a reassessment, it is the income in the latest reassessment order minus the income in the immediately preceding assessment or reassessment order. Only the new addition is measured, not amounts already dealt with earlier.
- If the assessment reduces a declared loss or converts a loss into positive income, the difference is still treated as under-reported income. No actual tax was paid in the original year, but the penalty attaches to the tax effect of the change.
Where a taxpayer is subject to special tax provisions such as the minimum alternate tax under Section 115JB or Section 115JC, any excess of income computed under those provisions over the income declared under them also counts as under-reported income.
What Counts as Misreporting
Misreporting is a narrower category than under-reporting, and only the behaviors listed in Section 270A(9) qualify. The distinction quadruples the penalty, so it matters which side of the line a case falls on.
- Misrepresenting or suppressing facts, such as describing the nature or source of income inaccurately or hiding facts that would change the tax treatment of a transaction.
- Claiming expenses that cannot be substantiated, including fabricated invoices, inflated vendor bills, and expenses with no corresponding business purpose.
- Failing to record investments in the books of account when they should have been recorded.
- Making false entries in the books, or omitting receipts that would increase taxable income. Maintaining parallel books is a textbook example.
- Failing to disclose international transactions or specified domestic transactions that fall under the transfer pricing provisions.
A penalty order that classifies a case as misreporting must identify which of these specific behaviors applies. A generic reference to misreporting, without pinpointing the sub-clause, has been successfully challenged at the appellate level.
How the Penalty Amount Is Worked Out
The penalty is not a percentage of the under-reported income. It is a percentage of the tax payable on that income, which is a smaller figure.1Income Tax Department. Penalties Calculate the total tax on the assessed income, then subtract the tax that would have been due on the income originally reported. The difference is the tax payable on the under-reported income. The penalty rate applies to that difference.
- Ordinary under-reporting: 50% of the tax payable on the under-reported income.
- Misreporting: 200% of the tax payable on the under-reported income.
Take an example. Assessed income is ₹15 lakh, returned income was ₹10 lakh, so under-reported income is ₹5 lakh. At a 30% tax rate, the tax payable on the under-reported portion is ₹1.5 lakh. The ordinary under-reporting penalty is ₹75,000. A misreporting penalty on the same facts is ₹3 lakh. The penalty sits on top of the tax itself and any interest under Sections 234A, 234B, or 234C, so the total demand can be substantial.
The rates for AY 2026-27 are the same as when the section was introduced.1Income Tax Department. Penalties Under the earlier Section 271(1)(c), the penalty could range from 100% to 300% at the officer’s discretion. Section 270A replaced that range with fixed percentages so the outcome is predictable.
When the Penalty Does Not Apply
Section 270A(6) lists situations where under-reported income does not attract a penalty at all. These exclusions apply only to ordinary under-reporting; if the case involves misreporting under Section 270A(9), the exclusions do not save you.
- A bona fide explanation, backed by disclosure of all material facts necessary to compute the income. Partial disclosure or an explanation resting on withheld facts will not qualify.
- Additions based on an estimate, where your books of account are correct and complete but the Assessing Officer applies a different computation method. Profit estimation disputes typically fall here.
- Transfer pricing adjustments based on arm’s length pricing, provided the documentation required under the transfer pricing provisions was maintained. Without that documentation, the exclusion is lost.
- Undisclosed income found during a search under Section 132 or a requisition under Section 132A. These are dealt with under Section 271AAB rather than Section 270A.
The exclusions cover only the Section 270A penalty. Tax and interest on the additional income are still payable.
Immunity Under Section 270AA
Section 270AA offers a way to avoid the penalty entirely, but only for ordinary under-reporting. It is not available when the proceedings involve misreporting. Two conditions must be satisfied before you apply.
- Pay the full tax and interest shown in the assessment or reassessment order within the time specified in the demand notice.
- Do not file an appeal against the assessment under Section 246A or a revision application under Section 264.
The application is made in Form 68 to the Assessing Officer within one month from the end of the month in which the assessment order was received. Miss that deadline and the option is gone; the section does not allow condonation of delay.
If the officer is satisfied that the conditions are met and the case does not involve misreporting, immunity is granted. The order covers both the Section 270A penalty and initiation of prosecution under Sections 276C and 276CC. Once granted, the order is final. You cannot later challenge the assessment, and the department cannot revisit the penalty.
If the application is rejected, you must be given a hearing before the rejection order is passed, and the rejection itself cannot be appealed. Rejection does not, however, extinguish your right to challenge the underlying assessment through the normal appeal route. The catch is timing: by waiting for the immunity decision, you may find the appeal window under Section 249 close to expiring or already closed. That is the real trade-off in the immunity route.
Before choosing immunity, run the numbers. Where the disputed tax is modest and the litigation cost would exceed the penalty savings, immunity is often the right call. Where the assessment addition is large and you have grounds to contest it, giving up your appeal rights to avoid the penalty may cost more than it saves.
What to Check When You Receive a Notice
An assessment addition does not by itself impose a penalty. The Assessing Officer must separately initiate penalty proceedings, and you have the right to respond before any penalty order is passed. If the addition is deleted on appeal, the penalty falls with it.
When a misreporting penalty is proposed, read the notice for the specific sub-clause of Section 270A(9) being invoked. A notice that alleges misreporting without identifying the exact ground is open to challenge on that basis alone.
Keep the penalty separate in your head from the interest charges under Sections 234A, 234B, and 234C. Interest continues to run on unpaid tax independently of how the penalty is resolved, and a contested demand usually combines additional tax, interest under more than one section, and the penalty, each computed under its own rules.