Section 40A(3) Cash Payment Disallowance in the September 30, 2026 Tax Audit: The Rs 10,000 Rule, Rule 6DD Exceptions and the Move to Section 36 of the Income-tax Act 2025

You paid a genuine business expense. You have the bill, the vendor is real, the money left your account. And yet, when your Chartered Accountant finalises the September 30, 2026 tax audit, the entire amount is added back to your income. The reason is Section 40A(3) of the Income-tax Act, 1961: it disallows a business expenditure in full if a single day’s payment to one person exceeds Rs 10,000 and is made in cash rather than through banking channels. This is one of the most mechanical, and most avoidable, disallowances a tax audit catches. Here is exactly how the Rs 10,000 cash rule works for FY 2025-26, the Rule 6DD exceptions that save you, and how it moves to Section 36 of the Income-tax Act 2025.

Quick Summary: The Section 40A(3) Cash Disallowance

The rule: Cash payment (or aggregate of payments in a day) to one person exceeding Rs 10,000 for a business expense is disallowed 100% as a deduction.
Goods carriage exception: The limit is Rs 35,000 for payments made for plying, hiring or leasing goods carriages.
Section 40A(3A): If you claimed a deduction in an earlier year and later pay it in cash above Rs 10,000, that payment is deemed income in the year of payment.
Rule 6DD rescue: A defined list of circumstances (bank holidays, payments to producers of agricultural produce, village situations, and more) exempts the payment from disallowance.
Where it shows up: Clause 21(d) of Form 3CD in the tax audit, due September 30, 2026 for FY 2025-26.

What Section 40A(3) Actually Says

Section 40A(3) provides: “Where the assessee incurs any expenditure in respect of which a payment or aggregate of payments made to a person in a day, otherwise than by an account payee cheque drawn on a bank or account payee bank draft, or use of electronic clearing system through a bank account or through such other electronic mode as may be prescribed, exceeds ten thousand rupees, no deduction shall be allowed in respect of such expenditure.” (Source: incometaxindia.gov.in/w/section-40a-50, Income-tax Act 1961, retrieved September 22, 2026.)

Three phrases decide everything:

“in a day”: the test is per person, per day. Three cash payments of Rs 4,000 each to the same vendor on the same day aggregate to Rs 12,000 and are disallowed in full, not just the excess over Rs 10,000.
“otherwise than by an account payee cheque … or electronic clearing system”: only account-payee cheques, account-payee bank drafts and electronic modes (NEFT, RTGS, IMPS, UPI, cards, and other prescribed modes) are safe. A bearer cheque is treated as cash.
“no deduction shall be allowed”: the disallowance is the whole expenditure, not the amount above Rs 10,000. This is the harshest feature of the section.

The Goods Carriage Relaxation: Rs 35,000

Section 40A(3) carries a proviso: “in the case of payment made for plying, hiring or leasing goods carriages, the provisions of sub-sections (3) and (3A) shall have effect as if for the words ‘ten thousand rupees’, the words ‘thirty-five thousand rupees’ had been substituted.” (Source: incometaxindia.gov.in/w/section-40a-50, retrieved September 22, 2026.) Transporters and businesses paying truck operators therefore have a higher Rs 35,000 per-person per-day cash ceiling. For every other expense, Rs 10,000 is the line.

Section 40A(3A): The Trap for Payments Made in a Later Year

Section 40A(3A) closes an obvious loophole. If you booked an expense on the accrual basis in one year (and got the deduction) and then discharge the liability in cash above Rs 10,000 in a later year, the payment “shall be deemed to be the profits and gains of business or profession and accordingly chargeable to income-tax as income of the subsequent year”. (Source: incometaxindia.gov.in/w/section-40a-50, retrieved September 22, 2026.) In other words, you cannot escape the section by deferring the cash payment to a year after the deduction was claimed. The clawback simply shifts to the year of payment.

Rule 6DD: The Exceptions That Save the Deduction

Both Section 40A(3) and 40A(3A) are subject to a proviso that no disallowance shall be made “in such cases and under such circumstances as may be prescribed, having regard to the nature and extent of banking facilities available, considerations of business expediency and other relevant factors.” Those prescribed circumstances live in Rule 6DD of the Income-tax Rules, 1962. The commonly relied-upon exceptions include:

Payments to the Reserve Bank of India, banks, and specified financial and government institutions.
Payments made on a day on which banks were closed due to a holiday or strike.
Payments to the cultivator, grower or producer of agricultural, forest, animal-husbandry, dairy, poultry, fish or horticultural produce.
Payments in a village or town not served by any bank to a person who ordinarily resides or carries on business there.
Payment of terminal benefits such as gratuity or retrenchment compensation up to the prescribed limit where the employee has no bank account.

Note: Rule 6DD sits in the Income-tax Rules, 1962, which are outside the section-text primary route used above; the exceptions listed here are stated at concept level and the exact current Rule 6DD list should be confirmed against the notified Rules before you rely on a specific clause.

Worked Example: How the Disallowance Bites

Scenario	Payment	Mode	Result
Single cash payment	Rs 15,000	Cash	Rs 15,000 disallowed in full
Split payments, same vendor, same day	Rs 6,000 + Rs 6,000	Cash	Rs 12,000 aggregated, disallowed in full
Same amount, next day	Rs 6,000 today + Rs 6,000 tomorrow	Cash	Allowed (each day under Rs 10,000)
Truck hire	Rs 30,000	Cash	Allowed (within Rs 35,000 goods-carriage limit)
Any expense	Rs 50,000	Bank/UPI/NEFT	Allowed (banking mode)

Where It Appears in Your Tax Audit

In the tax audit report, the auditor reports amounts inadmissible under Section 40A(3) in Clause 21(d) of Form 3CD. The auditor is expected to obtain the assessee’s certification of cash payments and verify the ledgers. A well-run books-to-audit process should sweep the cash and expense ledgers for any single-day, single-party cash outflow above Rs 10,000 before September 30, 2026. For the wider set of clauses that trip up founders, see our companion note on the Form 3CD clauses founders and CAs get wrong.

The Move to Section 36 of the Income-tax Act 2025

For FY 2026-27 onward, the cash disallowance carries forward, but the number changes. The Income-tax Act, 2025 places it in Section 36, “Expenses or payments not deductible in certain circumstances”. Beware the numbering trap: the new Section 36 is the successor to the old Section 40A, not to the old Section 36 (which was “Other deductions”).

Section 36(4) of the 2025 Act provides that “Where in respect of any expenditure incurred by the assessee, any payment or aggregate of payments made in a day to a person exceeds Rs 10000 and is not made through specified banking or online mode, then the expenditure by way of such payments shall not be allowed as a deduction.” Section 36(5) carries the deemed-income clawback (the old 40A(3A)), Section 36(7) preserves the prescribed exceptions (the Rule 6DD equivalent), and the Rs 35,000 goods-carriage figure is retained. (Source: incometaxindia.gov.in/w/section-36-171, Income-tax Act 2025, retrieved September 22, 2026.) The substance is unchanged: Rs 10,000 per person per day for cash, Rs 35,000 for goods carriages.

Compliance Checklist Before September 30, 2026

Sweep the cash ledger for any single-day, single-party payment above Rs 10,000 (Rs 35,000 for truck hire).
Aggregate by person by day, not by voucher. Split vouchers do not help.
Check bearer cheques: a cheque that is not account payee is treated as cash.
Map each flagged payment to a Rule 6DD exception if one genuinely applies, and keep the evidence (bank holiday, village situation, agricultural producer).
Add back the balance in the computation and disclose under Clause 21(d) of Form 3CD.
Fix the process going forward: route all vendor payments through NEFT/RTGS/UPI so the section never bites in the first place.

Frequently Asked Questions

Is the Section 40A(3) limit Rs 10,000 or Rs 20,000?

The general limit has been Rs 10,000 per person per day since the FY 2017-18 amendment. The Rs 20,000 figure is an old threshold and is no longer current. The only higher limit is Rs 35,000 for payments for plying, hiring or leasing goods carriages.

Is the whole payment disallowed or only the excess over Rs 10,000?

The whole payment is disallowed. Section 40A(3) says “no deduction shall be allowed in respect of such expenditure”, not merely the amount above Rs 10,000.

Does Section 40A(3) apply to capital expenditure?

Section 40A(3) applies to revenue expenditure claimed as a deduction. Cash payments for capital assets are separately restricted (for example, Section 43(1) denies such cash cost from being added to the actual cost for depreciation), so cash capital purchases carry their own consequence.

What if the bank was closed on the payment date?

Payments made on a day when banks were closed due to a holiday or strike are covered by a Rule 6DD exception, provided the facts support it. Keep evidence of the closure.

Does this change under the Income-tax Act 2025?

The threshold and structure are retained under Section 36 of the Income-tax Act 2025 (Rs 10,000 general, Rs 35,000 goods carriage), which governs FY 2026-27 onward. FY 2025-26 remains under Section 40A(3) of the 1961 Act.

The Bottom Line

Section 40A(3) is not about whether an expense is genuine; it is about how you paid for it. A real, documented, business-necessary payment is disallowed in full if it crosses Rs 10,000 in cash to one person in one day. Before the September 30, 2026 tax audit, sweep the cash ledger, aggregate by person and day, and move vendor payments to banking channels. For the related add-backs your auditor will test, read our notes on the Section 43B(h) MSME payment disallowance and the Section 40(a)(ia) TDS disallowance.

Finalising your books before the tax audit and unsure whether a cash payment survives Section 40A(3)? Tax Update India publishes practitioner-grade analysis for founders, CAs and finance teams. Bookmark TaxUpdate.in and forward this note to whoever is closing your cash ledger today.

Disclaimer: This article is for general information only and does not constitute tax or legal advice. Statutory provisions have been cited from primary sources as retrieved on September 22, 2026; Rule 6DD is stated at concept level and should be verified against the notified Income-tax Rules. Applicability depends on your specific facts. Please consult a qualified professional before acting.

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CA Adityavikram Banka

Founder & Director at A S Banka Advisors Private Limited

The author is Founder of A. S. Banka Advisors Private Limited & Partner at Dhiraj & Dheeraj.

You can reach out to the author on : info@asbanka.com

www.asbanka.com

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