When an assessment increases your income, the order often ends with a line initiating penalty under section 270A for under-reporting or misreporting of income. The difference between the two matters a great deal: under-reporting attracts a penalty of 50 percent of the tax on the under-reported income, while misreporting attracts 200 percent.
The law also offers a clean exit. Section 270AA lets a taxpayer seek immunity from penalty by accepting the assessment, paying the tax and not appealing. This guide explains how the penalty works, what counts as misreporting, how immunity operates, and what changed with the Income-tax Act 2025 and Budget 2026.
Key takeaways
- Under-reporting attracts a penalty of 50 percent of the tax payable on the under-reported income; misreporting attracts 200 percent.
- Misreporting covers specific acts, such as suppressing facts, unsubstantiated expense claims, false entries and unrecorded receipts or investments.
- Several exceptions apply, including where you gave a bona fide explanation and disclosed all material facts.
- Immunity under section 270AA is available if you pay the tax and interest demanded within the time allowed, do not appeal and apply within one month from the end of the month in which the order is received.
- Under the Income-tax Act 2025 these provisions appear as sections 439 and 440, and Budget 2026 announced wider immunity, including for misreporting cases on payment of additional tax.
How the penalty under section 270A works
A person is treated as having under-reported income when, broadly:
- the assessed income is higher than the income in the return processed under section 143(1);
- no return was filed and the assessed income exceeds the basic exemption limit;
- the income reassessed is higher than the income assessed or reassessed earlier; or
- a loss or deemed income is reduced or altered to the taxpayer’s disadvantage.
The penalty is computed on the tax payable on the under-reported income, not on the income itself. The law has specific rules on how that tax is calculated in each situation.
Under-reporting vs misreporting
| Aspect | Under-reporting | Misreporting |
|---|---|---|
| Penalty rate | 50% of tax on under-reported income | 200% of tax on under-reported income |
| Nature | Difference in income without specified wrongful acts | Arises from specified acts listed in the law |
| Typical examples | Disallowance on a debatable interpretation, estimates | Suppression of facts, false entries, unrecorded receipts |
| Immunity under 270AA | Available on conditions | Traditionally not available; wider relief announced in Budget 2026 |
The law lists the situations that amount to misreporting:
- misrepresentation or suppression of facts;
- failure to record investments in the books of account;
- claim of expenditure not substantiated by any evidence;
- recording of any false entry in the books of account;
- failure to record any receipt in the books of account having a bearing on total income;
- failure to report an international transaction or a specified domestic transaction to which transfer pricing provisions apply.
The assessment order and penalty notice should specify the particular limb invoked. Clarity on this point is important when replying.
Situations excluded from under-reporting
Certain amounts are not treated as under-reported income. The most relevant are:
- where you offer an explanation that the officer finds bona fide and have disclosed all material facts to substantiate it;
- where the addition is based on an estimate and your accounts are correct and complete, but the method used does not allow proper deduction of income;
- certain additions based on transfer pricing adjustments where documentation was maintained and transactions were disclosed.
A worked example
Assume an assessment adds ₹10 lakh to a company’s returned income by disallowing a claim, and the tax on that ₹10 lakh works out to about ₹2.5 lakh.
- If treated as under-reporting, the penalty is 50 percent, around ₹1.25 lakh.
- If treated as misreporting, the penalty is 200 percent, around ₹5 lakh.
- If the company accepts the addition, pays tax and interest within the demand notice period, does not appeal and applies for immunity within time, the under-reporting penalty can be avoided altogether.
The choice between appeal and immunity is therefore a real commercial decision. Where the disallowance is on a genuinely arguable legal issue, an appeal may be worth pursuing. Where the addition is small or weak to contest, immunity may cost less overall.
Immunity under section 270AA: step by step
- Review the order and decide whether you accept the additions.
- Pay the tax and interest demanded within the time given in the demand notice.
- Do not file an appeal against the assessment order. If an appeal has been filed, the immunity route is generally not available.
- Apply in Form 68 within one month from the end of the month in which the assessment order was received.
- Wait for the order: the officer decides within one month from the end of the month in which the application is received, after giving an opportunity of being heard before any rejection.
Immunity also covers prosecution under the specified provisions for wilful evasion and non-filing linked to that assessment, which adds to its value.
What changed in 2026
From 1 April 2026, the Income-tax Act 2025 carries these provisions forward as section 439 (penalty) and section 440 (immunity) with the same core structure. Assessments of earlier years under the 1961 Act continue to refer to sections 270A and 270AA.
Budget 2026 announced two reforms aimed at reducing litigation: integrating assessment and penalty into a common order, and extending immunity to misreporting cases where the taxpayer pays additional income-tax, announced at 100 percent of the tax on the under-reported income, in place of penalty. Check the enacted wording and effective date carefully against your assessment year before relying on either reform.
If you decide to appeal instead, our guides on section 143(2) scrutiny replies and the section 142(1) notice show how a strong assessment record helps at every later stage.
Replying to a penalty show cause notice
- Identify the limb: ask whether the notice alleges under-reporting or misreporting, and on which specific ground.
- Show bona fides: point to disclosures in the return, audit report and assessment replies.
- Challenge vague notices: a notice that does not specify the charge may be questioned.
- Keep appeal timelines in view: the penalty order is separately appealable.
Frequently asked questions
What is the penalty rate under section 270A?
It is 50 percent of the tax payable on under-reported income, and 200 percent where the under-reporting results from misreporting.
Can I get immunity if I have filed an appeal?
Generally no. Immunity requires that no appeal is filed against the assessment order and that tax and interest are paid within time.
What is the time limit to apply for immunity?
The application in Form 68 must be made within one month from the end of the month in which the assessment order is received.
What are the new section numbers?
Under the Income-tax Act 2025, the penalty is in section 439 and immunity in section 440.
If you have received an assessment order with penalty proceedings and would like help weighing immunity against an appeal, we would be glad to discuss your options.
This article is general information based on the law as of September 2026, and is not legal or tax advice. Please check the facts of your own case with a professional before acting.
