Section 154 rectification: fixing a mistake apparent from record in your 143(1) intimation

You opened your email on 12 August 2025, saw a Central Processing Centre (CPC) intimation under Section 143(1), and the refund line read "Rs 0" when you had claimed Rs 12,000 back. The tax was computed correctly, but a chunk of your Tax Deducted at Source (TDS) simply did not carry across. This is one of the most common triggers for a rectification request under Section 154 of the Income-tax Act, 1961, and unlike a revised return, it does not reopen your whole filing. This guide walks through when Section 154 applies, the four-year window in Section 154(7), and a worked example that restores a Rs 12,000 refund.

The Scenario

Picture a salaried filer for Assessment Year (AY) 2025-26 who e-filed her ITR on 15 July 2025, cross-checked her numbers against the annual information statement, and expected a refund of Rs 12,000. On 12 August 2025 the CPC issued a Section 143(1) intimation that matched her computed tax to the rupee but credited only her salary TDS, leaving out Rs 12,000 of bank interest TDS. The result: a "nil refund" intimation despite a genuine Rs 12,000 claim.

The instinct is to file a revised return, but the self-assessment tax computation itself was never wrong; only the tax-credit matching failed at CPC. A revised return under Section 139(5) was possible only up to 31 December 2025 for AY 2025-26, and that window has now closed as of 7 August 2026. Section 154 has no such year-end cut-off. It stays open for four years from the end of the financial year in which the order was passed, which for an intimation dated 12 August 2025 runs until 31 March 2030.

The distinction matters because the two remedies fix different problems. A revised return corrects something the taxpayer got wrong, such as a Rs 50,000 deduction she forgot to claim. A rectification corrects a "mistake apparent from record" in the processing itself, such as the Rs 12,000 TDS that Form 26AS clearly shows but the 143(1) intimation ignored.

Statutory Answer

Section 154 of the Income-tax Act, 1961 empowers an income-tax authority to "amend any order passed by it" to rectify a mistake apparent from the record, and Section 143(1) intimations fall squarely within the orders that can be amended. The full text is available at indiacode.nic.in, and the operative phrase is "mistake apparent from the record" -- meaning an obvious, self-evident error, not a debatable point of law that needs lengthy argument.

Three sub-sections govern the mechanics and every filer should know them by number. Section 154(1) sets out what can be rectified: any order, intimation or deemed intimation under the Act. Section 154(7) fixes the outer limit at four years from the end of the financial year in which the order sought to be amended was passed. Section 154(8) obliges the authority to pass an order within six months from the end of the month in which a taxpayer's application is received, so a request filed in August 2026 must be disposed of by the end of February 2027.

Crucially, Section 154 cannot be used to introduce a fresh claim. The Income Tax Department's own rectification FAQ at incometax.gov.in states that new deductions, exemptions or loss claims not made in the original return cannot be added through rectification; those require a revised return under Section 139(5). So an old-regime filer who forgot her Rs 50,000 NPS deduction under Section 80CCD(1B) cannot recover it via Section 154 once the revised-return window shuts on 31 December of the assessment year. Note that Section 80CCD(1B) is not allowed in the new regime; it is an old regime only deduction and cannot be claimed by anyone who has opted into the new regime.

The portal path, per the incometax.gov.in help pages, is Services > Rectification > New Request > select the relevant AY, then choose one of three request types. The table below sets out when each applies.

Only a taxpayer who has actually received a Section 143(1) intimation from CPC can file a rectification against it; if no intimation has been issued, there is no order on record to amend. You can confirm your intimation status under the "View Filed Returns" service on the portal before starting a request.

Worked Resolution

Take the AY 2025-26 filer above with a gross salary of Rs 14,00,000 under the new tax regime. Her taxable income, after the Rs 75,000 standard deduction available in the new regime for FY 2025-26, is Rs 13,25,000, computed using the FY 2025-26 slabs. You can reproduce this in the income tax calculator and compare regimes in the old vs new regime tool.

Note that the Section 87A rebate does not apply here. In the new regime for FY 2025-26 the rebate rises to Rs 60,000, but only where total income is at or below Rs 12,00,000; at Rs 13,25,000 this filer is above the threshold and pays the full Rs 81,900.

Now the tax-credit side. Her Form 26AS reflects Rs 81,900 of salary TDS under Section 192 plus Rs 12,000 of bank fixed-deposit interest TDS under Section 194A, a total of Rs 93,900. The 143(1) intimation, however, allowed only the Rs 81,900 salary credit, so the system showed a refund of nil instead of Rs 12,000. You can verify how deposit interest is deducted at source using the TDS calculator.

The fix is a Tax Credit Mismatch Correction under Section 154. She logs in, opens Services > Rectification > New Request, selects AY 2025-26, and picks the tax-credit mismatch option so CPC re-reads the now-updated Form 26AS. Because the Rs 12,000 deposit TDS is genuinely on record, this is a mistake apparent from record and CPC reprocesses to allow the full Rs 93,900, generating a refund of Rs 12,000.

There is an interest sweetener. Under Section 244A, a refund arising this way carries simple interest at 0.5% per month, or part of a month, on the Rs 12,000 from 1 April 2025 until the refund is granted. If the refund is issued after nine months, that is roughly Rs 540 of extra interest (0.5% x 9 x Rs 12,000), paid on top of the principal. The exact figure depends on the grant date, which the rectification order will state.

FAQ

What is the deadline to file a Section 154 rectification?

Section 154(7) allows rectification within four years from the end of the financial year in which the order was passed. For a 143(1) intimation dated 12 August 2025, the order was passed in FY 2025-26, so the window runs to 31 March 2030. Miss it and the mistake, however obvious, can no longer be corrected under this section.

Can I claim a new deduction I forgot through rectification?

No. The incometax.gov.in rectification FAQ is explicit that a fresh deduction, exemption or loss claim not made in the original return cannot be introduced via Section 154. A forgotten Rs 1,50,000 Section 80C claim needs a revised return under Section 139(5), and for AY 2025-26 that window closed on 31 December 2025.

How long does CPC take to process a rectification?

Section 154(8) requires the authority to pass an order within six months from the end of the month in which the taxpayer's application is received. A request filed in August 2026 must therefore be disposed of by the end of February 2027, though many tax-credit corrections are reprocessed faster online.

What if the 143(1) intimation raised a demand instead of reducing my refund?

The same Tax Credit Mismatch Correction applies. If CPC missed Rs 12,000 of TDS and instead raised a demand of Rs 12,000, filing a Section 154 rectification that restores the credit removes the demand. Do not pay a demand that stems purely from an unmatched but genuine TDS entry in your Form 26AS.

Is there a fee to file a rectification request?

There is no filing fee for a Section 154 rectification on the incometax.gov.in portal. The service under Services > Rectification is free, and you can raise multiple requests for the same AY only after the previous one is disposed of.

Can rectification and appeal both be used for the same intimation?

Yes, but for different issues. A mistake apparent from record, such as an unmatched Rs 12,000 TDS credit, is a Section 154 matter. A genuine dispute over how income is taxed is an appeal matter under Section 246A. Choosing rectification for an obvious clerical error is faster and avoids the appeal route entirely.

What if my rectification request is rejected?

If CPC rejects a Section 154 request, you receive an order stating the reason, and you may file a fresh rectification correcting the defect or, for substantive disputes, an appeal under Section 246A within 30 days. Keep your Form 26AS and the original 143(1) intimation handy, as both form the "record" the rectification is judged against.