Section 43B Payment-Timing Disallowance: PF, Gratuity, Bonus, Leave Encashment

Section 43B ITA 1961 forces cash-basis deduction for specified payables: a deduction that is normally allowed on accrual is available only in the year of actual payment. Tax, duty, bonus, bank interest and leave encashment are protected if paid by the ITR due date — but employer PF/ESI contributions get no such grace (Explanation 2), so a ₹1.2 lakh March PF paid in April is added back in the year it relates to and claimed only when actually paid, deferring about ₹30,204 in tax at a 25.17% corporate rate.

What the law actually requires

Section 43B overrides the mercantile system for five categories of liability. The deduction is allowed only in the year of actual payment, subject to the grace period in the first proviso — which applies to every clause except employer contributions.

The crucial asymmetry. The first proviso — "deemed paid if paid before the due date for furnishing the return of income" (31 October for non-TP companies, 30 November with transfer pricing) — saves clause (a), (c), (d) and (e). Explanation 2 to s.43B expressly removes clause (b) from that grace. So an employer's PF/ESI contribution is deductible only when actually paid, and a belated contribution paid after the statutory due date under the PF/ESI Act (the 15th of the following month) — even if paid before the ITR due date — is disallowed for the year it relates to and claimed in the year of payment.

Gratuity. Employer's gratuity contribution is deductible only when actually paid to the employee or into the gratuity fund — there is no accrual-based deduction under s.43B(b), and no ITR grace. Provision for gratuity in the books is an add-back.

Worked example: Nova Manufacturing Pvt Ltd

Nova Manufacturing Pvt Ltd (FY 2025-26, tax audit required) books the following liabilities in March 2026 and settles them in April–May 2026:

The add-back: only the ₹1,20,000 employer PF is disallowed in FY 2025-26. It is claimed in FY 2026-27 when actually paid.

The cost: at 25.17% (s.115BAA), the ₹1.2 lakh add-back means ₹1,20,000 × 25.17% = ₹30,204 of tax paid a year early — plus s.234B/234C interest if the company's advance tax did not provide for the add-back. A company that files ITR-6 without adding back the March PF has understated income and faces scrutiny; a company that adds it back without planning the advance-tax impact pays interest.

Practical implications

• March is the danger month. PF/ESI for March is by definition paid in April (statutory due date 15 April, next financial year), so it is the recurring 43B(b) add-back. Plan for it — it never goes away.
• The add-back is a timing difference, not a permanent bar. The amount is deducted in the year of actual payment. But a multi-year pattern of repeated add-backs is a permanent working-capital drag and a sign of weak payroll discipline that scrutiny notices.
• Provision for gratuity is a trap. Many companies accrue gratuity but pay nothing into a fund — the entire accrual is disallowed under 43B(b) until actually paid to a fund or employee.
• Form 3CD Clause 21 requires the auditor to report amounts debited to P&L that are deductible only on payment — the March PF add-back appears on the face of the tax audit report.
• The MSME parallel. s.43B(h) does the same timing trick for overdue MSME payables (the 45-day rule) — a company that has both March PF and overdue MSME invoices carries two separate add-backs.

Changed FY 2025-26: s.43B(a)-(e) are unchanged in this period. The enforcement shift is that scrutiny now cross-checks the 43B add-back schedule against Form 26AS, the PF challans, and the bank statements — a company that omits the March PF add-back is increasingly likely to be caught by the data match rather than a human review.

Step-by-step: what to do

• Build the year-end payables register: every liability accrued in FY 2025-26, with its actual payment date and mode.
• Classify each against the s.43B table: clauses (a)/(c)/(d)/(e) are safe if paid before the ITR due date; clause (b) is safe only if actually paid in the year.
• Separate the employer PF/ESI for March (and any other belated contributions) as the annual add-back.
• Compute the tax effect of every add-back at your corporate rate and include it in the FY 2025-26 advance-tax computation (not after filing).
• Prepare the clause 21 schedule for the auditor, with payment challans for every item — evidence of payment must accompany the return for the deduction to be allowed.
• Track the add-backs so each is claimed in the year of actual payment; use the MSME 43B(h) forecaster to model the timing cost across both 43B and 43B(h).

FAQ

Which s.43B items are safe if paid by the ITR due date?
Tax/duty/cess (clause a), bonus/commission (c), bank/FI interest (d) and leave encashment (e) — all covered by the first-proviso grace, if paid before 31 October (non-TP) or 30 November (TP).

Does the ITR-grace apply to employer PF/ESI contributions?
No. Explanation 2 excludes clause (b) from the first proviso. Employer PF/ESI contributions are deductible only when actually paid — a March contribution paid in April is added back in the year it relates to.

What about gratuity?
Employer gratuity contributions are deductible only when actually paid into the gratuity fund or to the employee. A mere accrual/provision is disallowed under s.43B(b).

Is the disallowance permanent?
No — it is a timing difference. The amount is claimed in the year of actual payment. The cost is the year of deferral, at your corporate rate, plus any advance-tax interest.

Where does this appear in the audit?
Form 3CD requires disclosure of amounts debited to P&L that are deductible only on actual payment (the 43B schedule). The add-back flows into the tax computation in ITR-6.

Sources

• Income Tax Act 1961, s.43B (a)-(e), Explanation 1 and Explanation 2, first proviso; s.36(1)(ii) (bonus); s.115BAA
• Income Tax Rules 1962 — Form 3CD (disclosure of 43B add-backs)
• EPFO / ESIC — statutory due date (15th of the following month) for employer contributions

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