Section 14A explained: this guide covers what it means, who it applies to, the step-by-step process, documents required, fees, due dates and penalties in India — so you can stay compliant with confidence and avoid costly mistakes.
Clause 21(h) reports the deduction inadmissible under section 14A — expenditure incurred in relation to income that does not form part of total income. Rule 8D supplies the Assessing Officer's method, not a mandatory computation for the assessee.
From the ICAI Guidance Note on Tax Audit (Revised 2026), the concluding edition under the Income-tax Act, 1961. For tax years under the Income-tax Act, 2025 the corresponding provision and prescribed method must be identified afresh, and the particulars move to Form No. 26 under rule 47 of the Income-tax Rules, 2026.
The provision
Paragraph 40.1: for the purposes of computing total income under Chapter IV, no deduction shall be allowed in respect of expenditure incurred by the assessee in relation to income which does not form part of the total income under the Act. It is clarified that section 14A applies notwithstanding anything to the contrary in the Act, and irrespective of the income not forming part of total income having not accrued, arisen or been received during the particular previous year.
Sub-sections (2) and (3), from paragraphs 40.2 and 40.3:
- (2) — the Assessing Officer shall determine the amount of expenditure incurred in relation to such income, in accordance with the prescribed method. That power can be exercised only when he, having regard to the accounts of the assessee, is not satisfied with the correctness of the claim.
- (3) — sub-section (2) also applies where the assessee claims that no expenditure has been incurred in relation to such income.
Paragraphs 40.4 and 40.12 record the Explanation: notwithstanding anything to the contrary, the section shall apply and shall be deemed to have always applied where the exempt income has not accrued or arisen or been received during the previous year and the expenditure has been incurred during that year in relation to such income.
What is caught, and what is not
Paragraph 40.5: expenditure relatable to income which does not form part of total income is not allowed. Such income is dealt with in Chapter III — Incomes Which Do Not Form Part of Total Income; section 10 deals with incomes not included in total income, and sections 10A to 10C with special provisions for specified undertakings. Common examples given: agricultural income exempt under section 10(1), and a share of profit in a partnership firm exempt under section 10(2A).
The partnership illustration is instructive: while the interest and salary received by the partner are taxable, the share of profit is exempt — so expenditure relating to the exempt share is inadmissible while expenditure relating to the taxable elements is not.
Paragraph 40.5 closes with a boundary that is often blurred: the disallowance does not apply to income which is forming part of gross total income and in respect of which deductions under Chapter VI-A are thereafter claimed. A Chapter VI-A deduction reduces total income; it does not make the underlying income one that "does not form part of the total income". Section 14A reaches only Chapter III exemptions.
Rule 8D — whose method it is
Paragraph 40.6: Rule 8D(1) provides that, having regard to the accounts of the assessee, if the Assessing Officer is not satisfied with the correctness of the claim of expenditure, or with the claim that no expenditure has been incurred, he shall determine the inadmissible amount in accordance with Rule 8D(2).
Paragraph 40.7: the disallowance under Rule 8D(2) is the aggregate of:
- the amount of expenditure directly relating to income which does not form part of total income; and
- an amount equal to 1% of the annual average of the monthly averages of the opening and closing balances of the value of investment, income from which does not or shall not form part of total income,
provided that the amount referred to in (i) and (ii) shall not exceed the total expenditure claimed by the assessee.
Paragraph 40.8 then makes the point that governs the auditor's approach:
"The method prescribed under sub-rule (2) of Rule 8D is applicable when the Assessing Officer is not satisfied … Normally this situation would arise at the time of assessment i.e. after the tax audit has been completed and the return has been filed. Therefore, at the time of tax audit, the tax auditor will have to verify the amount of inadmissible expenditure as determined by the assessee. … Rule 8D does not mandate that the assessee should necessarily compute the disallowance as per the method prescribed under sub-rule (2). Therefore, the assessee may or may not adopt the same considering facts and circumstances of his case."
What the auditor actually does
Paragraph 40.9: it is primarily the responsibility of the assessee to furnish the details of the amount inadmissible under section 14A. The tax auditor shall examine the details as furnished by the assessee, and is entitled to rely on the management representation — referring to SA 580, Written Representations.
Paragraph 40.10: the auditor has to verify the amount with reference to established principles of allocation of expenditure based on logical parameters, such as:
- the proportion of exempt and taxable income recorded;
- turnover; and
- man hours spent to earn the relevant income.
For allocation of interest between taxable and non-taxable income, the generally relevant factors are the quantum of investment, the period and the rate of interest. Since this requires proper estimates by the assessee, and the tax auditor is required to audit such estimates, attention is drawn to SA 540, Auditing Accounting Estimates, Including Fair Value Accounting Estimates, and Related Disclosures.
Paragraph 40.11: where the assessee claims that no expenditure has been incurred, the provisions of section 14A will still apply, and the tax auditor is required to verify that contention.
The three reporting outcomes on disagreement
Paragraph 40.13: after verifying, if the tax auditor:
| Position | Report |
|---|---|
| Agrees with the assessee | Report the amount with suitable disclosures of material assumptions, if any |
| Disagrees, effect material but not pervasive | Qualified opinion |
| Disagrees, impact so material and pervasive that it affects the overall opinion — described as arising in rare circumstances | Adverse opinion |
| The assessee has neither provided the basis nor the supporting documents, so there is a limitation on scope and the possible effects could be both material and pervasive | Disclaimer of opinion |
Clause 21(h) is one of the few places in the Guidance Note where the full SA 705 ladder — qualified, adverse, disclaimer — is spelt out for a single Form 3CD particular. That is because the figure is an estimate made by the assessee rather than a fact in the ledger, and the auditor's response has to match the seriousness of the disagreement rather than defaulting to a single form of qualification.
Worked example
| Item | Amount | Treatment |
|---|---|---|
| Direct expenditure on managing an exempt-income portfolio — custodian and advisory fees | Rs 3,20,000 | Directly relatable — inadmissible |
| Interest on borrowings, allocated on quantum, period and rate | Rs 7,40,000 | Estimate audited under SA 540 |
| Share of profit from a firm, exempt under section 10(2A) | — | Related expenditure is within section 14A; interest and salary from the firm are taxable and outside it |
| Assessee's claim under Chapter VI-A on business income | — | Outside section 14A |
| No exempt income earned in the year, but portfolio held and costs incurred | — | Section 14A still applies, per the Explanation |
| Reported at clause 21(h) | Rs 10,60,000 | With disclosure of the material assumptions in the allocation |
Had the assessee produced no basis at all for the interest allocation, the auditor's response would move up the ladder — to a qualified opinion, or to a disclaimer if nothing was supplied.
Audit checklist
- Identify all income falling in Chapter III, and exclude Chapter VI-A cases.
- Apply section 14A even where no exempt income arose in the year.
- Verify the assessee's figure, not a Rule 8D computation — the assessee is not obliged to use Rule 8D(2).
- Test the allocation basis against income proportion, turnover or man hours; for interest, against quantum, period and rate.
- Audit the estimate under SA 540 and take representations under SA 580.
- Verify a "no expenditure incurred" claim rather than accepting it.
- Disclose material assumptions where you agree; escalate to qualified, adverse or disclaimer where you do not.
Common mistakes
- Reporting the Rule 8D(2) figure as though the assessee were required to compute it that way.
- Reporting nil because no exempt income arose during the year.
- Applying section 14A to Chapter VI-A deduction cases.
- Accepting an allocation with no stated basis.
- Using a single form of qualification regardless of how material and pervasive the disagreement is.