Section 264 Cannot Be Used to Revive a Missed Tax Claim After Revision Deadline
Supreme Court holds that a taxpayer cannot use revision proceedings to effectively revise a return after the statutory time for filing a revised return has expired
What happens when the law permits a tax claim, but the taxpayer forgets to make that claim in the return—and the time for filing a revised return has already expired?
Can the taxpayer subsequently approach the Principal Commissioner under section 264 and seek the benefit?
The Supreme Court has now provided an important answer.
In Deputy Commissioner of Income Tax, CPC & Ors. v. M/s Om Siddhakala Associates, Civil Appeal No. 10175 of 2026, order dated 5 August 2026, the Supreme Court held that section 264 cannot be used to effectively revise a return after the statutory time for filing a revised return has expired.
The Court set aside the Bombay High Court’s order which had remanded the matter for fresh consideration. It also clarified that it was not deciding whether the tolerance limit under section 43CA was retrospective or prospective.
The judgment carries an important practical message:
A claim that was never made in the return cannot ordinarily be introduced later through section 264 merely because the taxpayer has discovered a better legal position after the deadline for revising the return has expired.
The dispute: A claim missed in the return
The assessee, M/s Om Siddhakala Associates, filed its self-assessment return.
The return was subsequently processed by the Centralised Processing Centre (CPC), resulting in an intimation under section 143(1) and a consequential demand under section 156.
The controversy arose in connection with the tolerance limit under section 43CA.
The assessee sought to take advantage of the statutory tolerance provision.
However, there was one major difficulty:
The claim had not been made in the original self-assessment return.
Nor had the assessee filed a revised return within the time prescribed under the Income-tax Act.
Once the time for revising the return had expired, the assessee approached the Principal Commissioner by invoking section 264.
What is section 264?
Section 264 gives the Principal Commissioner or Commissioner an important power to revise certain orders in favour of an assessee.
It is often considered a taxpayer-friendly remedy because it can provide relief where an assessee has suffered an incorrect assessment or has not obtained relief otherwise available under law.
But the question before the Supreme Court was whether this revisionary power can be used to do something which effectively amounts to filing a revised return after the statutory deadline.
The Supreme Court answered this question in the negative in the facts before it.
The PCIT rejected the section 264 application
The Principal Commissioner rejected the assessee’s revision application.
One of the reasons was the unexplained delay.
The PCIT also took the view that the tolerance limit introduced under section 43CA was prospective and that the assessee was effectively attempting to revise its return after the prescribed period by taking recourse to section 264.
The assessee challenged the order before the Bombay High Court.
Bombay High Court remanded the matter
The Bombay High Court, in Writ Petition No. 14178 of 2023, dated 28 March 2024, remanded the matter for fresh consideration.
The Revenue challenged that order before the Supreme Court.
The Supreme Court examined whether such a remand was legally permissible in the circumstances.
And this is where the case took an important turn.
Supreme Court: You could have revised the return in time
The Supreme Court noted that the assessee had not raised the tolerance-limit issue in the self-assessment return.
The return was also not revised within the time prescribed by law.
The Court observed that the assessee could have revised the return within the prescribed period but did not do so.
Therefore, permitting the same claim to be introduced through section 264 would effectively allow the assessee to revise the return after the statutory deadline.
The Court described this as an attempt to:
“revise the return under the garb of a revision.”
That, according to the Supreme Court, was not permissible in the facts of the case.
Section 264 is not an alternative revised return
This is the central takeaway from the judgment.
Section 264 is a revisionary remedy.
It cannot automatically become an alternative route for filing a revised return once the statutory period for revising the original return has expired.
The taxpayer cannot say:
“I forgot to claim this benefit in my return. The time for filing a revised return is over. Therefore, I will now make the claim through section 264.”
The Supreme Court has made it clear that such an approach is not permissible where the effect of the section 264 proceedings would simply be to rewrite the return after the prescribed deadline.
Why limitation matters
Tax law provides specific time limits for filing original and revised returns.
These deadlines are not merely decorative.
A taxpayer who discovers an omission or an incorrect claim has a statutory window within which the return can be corrected through the prescribed mechanism.
Once that period expires, the taxpayer cannot necessarily recreate the same statutory remedy by changing the procedural route.
This is essentially a limitation principle.
A strong claim on merits does not automatically overcome a statutory deadline.
The interesting point: The Supreme Court did not decide section 43CA
There is an important nuance which should not be overlooked.
The dispute involved the tolerance limit under section 43CA.
However, the Supreme Court specifically stated that it had not entered into the question of whether the tolerance limit was retrospective or prospective.
Therefore, the judgment should not be cited as authority for either proposition regarding the retrospective or prospective operation of the section 43CA tolerance limit.
The Supreme Court decided the case on the more fundamental procedural issue:
The claim was not made in the return, the return was not revised within time, and section 264 could not be used to effectively revise it after the deadline.
This distinction is extremely important while citing the judgment.
What happened to the reassessment after the High Court’s remand?
Another interesting consequence followed from the Supreme Court’s decision.
The assessee’s counsel informed the Court that a reassessment had already been made pursuant to the Bombay High Court’s remand order.
The Supreme Court held that once the High Court’s remand order itself was set aside, any reassessment made pursuant to that remand would also have no effect, since it was a dependent order.
Consequently, the assessee’s tax liability remained governed by the original return and the consequential section 143(1) intimation and demand.
Does this mean section 264 is no longer useful?
Absolutely not.
The judgment should not be understood as saying that section 264 cannot be used to grant genuine relief to taxpayers.
Section 264 continues to be an important remedial provision.
The limitation highlighted by the Supreme Court is narrower:
Section 264 cannot be used as a substitute for a revised return where the assessee is simply seeking to introduce a claim that could have been made through a revised return but was not made within the prescribed time.
The precise facts and nature of the relief therefore remain important.
A simple example
Suppose a taxpayer files a return declaring income of ₹50 lakh.
After filing the return, the taxpayer realises that a deduction of ₹5 lakh was available.
The taxpayer has sufficient time to file a revised return but does not do so.
The statutory deadline subsequently expires.
Can the taxpayer then approach the PCIT under section 264 and say:
“Please allow the ₹5 lakh deduction because I forgot to claim it in my return.”
After Om Siddhakala Associates, the taxpayer cannot assume that section 264 can be used as a substitute for the missed revised-return mechanism.
The key issue is whether allowing the relief would effectively amount to rewriting the return after the statutory deadline.
The judgment’s important message for taxpayers
The case carries a practical lesson that is easy to state but extremely important:
Review your return before the revision deadline expires.
Taxpayers should not wait until the assessment or CPC processing stage to identify omitted claims.
Before the revised-return window closes, taxpayers should review:
• Income reported;
• Deductions claimed;
• Exemptions;
• Capital gains;
• TDS/TCS credits;
• Losses;
• Depreciation;
• Section 80 deductions;
• Tax regime selected;
• Property-related provisions;
• Business expenses; and
• Other statutory benefits.
An omission discovered within the permissible revision period can potentially be corrected through a revised return.
Once the deadline passes, the available remedies may become considerably narrower.
What about a claim that is legally correct?
This is where taxpayers may find the judgment somewhat harsh.
Suppose the law clearly provides a benefit and the taxpayer genuinely satisfies all the substantive conditions.
Does forgetting to claim it automatically mean that the benefit can never be obtained?
Not necessarily in every conceivable situation.
Tax law contains different remedial provisions, appellate remedies and judicial principles, and their applicability depends upon the facts.
But the Supreme Court’s decision makes one important point clear:
Section 264 cannot simply be used to bypass the statutory deadline for revising a return.
The legal correctness of the underlying claim does not, by itself, convert section 264 into an unlimited power to rewrite the return.
The distinction between assessment error and return omission
This distinction is useful for understanding the judgment.
There can be a situation where:
The taxpayer made the claim in the return, but the Assessing Officer wrongly denied it.
That is conceptually different from:
The taxpayer never made the claim in the return and is now trying to introduce it after the revised-return period has expired.
Section 264 may have a different role to play in the first situation because the issue concerns an order or assessment dealing with a claim already made.
The second situation raises the limitation problem highlighted by the Supreme Court.
Therefore, practitioners should carefully identify whether the dispute is about:
an incorrect assessment of a claim already made, or
a new claim being introduced after the statutory return-revision period.
A lesson for tax professionals
For tax professionals, the judgment is another reminder that return preparation is not merely a data-entry exercise.
The return is the starting point for the taxpayer’s tax position.
Before filing, professionals should undertake a structured review of:
Income → deductions → exemptions → losses → TDS/TCS → capital gains → statutory claims → disclosures.
And once the return is filed, any discovered omission should be examined immediately.
If a revised return can still be filed, that route should not be unnecessarily postponed.
The longer the taxpayer waits, the greater the risk that the statutory correction mechanism will close.
The larger principle: Procedure matters
Tax litigation often focuses heavily on substantive rights.
But the Om Siddhakala Associates decision demonstrates that procedure and limitation matter too.
A taxpayer may have a good argument on the underlying tax provision.
But if the statutory framework requires the claim to be made through a return or revised return within a prescribed period, the taxpayer cannot necessarily circumvent that mechanism by invoking a different provision after the deadline.
The Supreme Court therefore drew a clear boundary around section 264.
What the Supreme Court actually decided
The decision can be distilled into four points:
1. The tolerance-limit claim was not made in the self-assessment return.
2. The assessee did not revise the return within the prescribed time.
3. Allowing the claim through section 264 in these circumstances would effectively amount to revising the return after limitation.
4. The Bombay High Court’s remand was therefore set aside, along with the consequential reassessment made pursuant to that remand.
And one point was expressly left open:
Whether the section 43CA tolerance limit is retrospective or prospective.
Conclusion
The Supreme Court’s decision in Deputy Commissioner of Income Tax, CPC & Ors. v. M/s Om Siddhakala Associates is an important reminder that a missed statutory deadline can have consequences even where the taxpayer believes the underlying claim is legally justified.
Section 264 is a valuable remedial provision, but it cannot be treated as a backdoor route for filing a revised return after the time prescribed by law has expired.
The practical message for taxpayers is simple:
Don’t leave legitimate claims for later.
If a claim is available under law, make it in the original return.
If an omission is discovered, examine and file a revised return within the statutory time.
Once the revision window closes, section 264 cannot automatically be expected to reopen the return.
In tax law, therefore, one should remember:
“The law may give you the benefit—but you must claim it through the correct door, and within the prescribed time.”
Case: Deputy Commissioner of Income Tax, CPC & Ors. v. M/s Om Siddhakala Associates, Civil Appeal No. 10175 of 2026, Supreme Court, order dated 5 August 2026. The Supreme Court expressly left open the question of whether the section 43CA tolerance limit operates retrospectively or prospectively.
The copy of the order is as under:
