| 📅 Updated as on: 25 June 2026 | ⚡ Subject to amendment — verify at official Income Tax portal |
Section 34 Income Tax Act 2025 replaces old Section 37 of the Income Tax Act, 1961 and now governs general business deductions. This renumbering creates major compliance risks for CAs, CFOs, and businesses.
| ⚠️ CRITICAL RENUMBERING — READ FIRST In the Income Tax Act 2025, the section numbers have been reshuffled in a way that can cause serious errors: Old Section 37 = General deduction (wholly and exclusively for business) → Now SECTION 34 of IT Act 2025 Old Section 43B = Payment-basis deductions (PF, ESI, bonus, etc.) → Now SECTION 37 of IT Act 2025 RISK: If a CA or accountant cites “Section 37” in a Tax Year 2026-27 context without specifying the Act, they may mean two completely different provisions. Always specify the Act and section together. “Section 37 of old Act” = general deduction (now Section 34 Income Tax Act 2025) “Section 37 of new Act” = payment-basis deductions (was Section 43B of old Act) |
Section 37 of the Income Tax Act, 1961 was the backbone of business expenditure deduction claims. Every business expense that was not specifically covered by Sections 30 to 36 — rent, repairs, depreciation, bad debts, scientific research — fell under Section 37’s “wholly and exclusively for business” test. It was the general provision that gave businesses the flexibility to claim any bona fide business expense.
From 1 April 2026, old Section 37 becomes Section 34 the Income Tax Act, 2025. In the same renumbering, old Section 43B (payment-basis deductions for PF, ESI, bonus, etc.) becomes Section 37 of the new Act. This cross-over renumbering is a significant practical risk for tax professionals who may use section numbers without verifying which Act they are operating under.
This blog covers what was old Section 37 and is now Section 34 — the general business deduction provision — explaining what changed substantively, what the new Act added, and what businesses must know for Tax Year 2026-27.
Part 1 — The Old Law: Section 37, Income Tax Act 1961
| 📌 SECTION 37 — INCOME TAX ACT, 1961 (General Deduction) Section 37(1): Any expenditure (not being expenditure of the nature described in Sections 30 to 36 and not being in the nature of capital expenditure or personal expenses), laid out or expended wholly and exclusively for the purposes of the business or profession shall be allowed in computing income chargeable under “Profits and Gains of Business or Profession”. Explanation 1: Expenditure for any purpose which is an offence or prohibited by law = NOT deductible. Explanation 2: CSR expenditure (Companies Act 2013 Schedule VII) = NOT deductible. Explanation 3: Expenditure for settlement of proceedings under specified laws = NOT deductible. (Added by Notification 38/2025 — SEBI, Competition Commission, etc. settlements) Key test — 4 conditions ALL must be satisfied: 1. Not covered by Section 30 to 36 (specific deduction sections) 2. Not capital expenditure 3. Not personal expenditure 4. Wholly and exclusively for business purposes Common disallowances under old Section 37: -> Penalties and fines paid to government authorities -> CSR expenditure (Explanation 2) -> Political advertisement expenses -> Expenses for prohibited activities or offences -> Capital expenditure disguised as revenue expenditure -> Personal expenses of proprietor/partner charged to business |
Part 2 — The New Law: Section 34, Income Tax Act 2025
| 📌 SECTION 34 — INCOME TAX ACT, 2025 (General Conditions for Allowable Deductions) Section 34 of IT Act 2025 = Direct equivalent of old Section 37(1) of IT Act 1961. Conditions for allowable deduction (UNCHANGED from old Section 37): 1. Expenditure not covered by Sections 28 to 36 of new Act (specific deduction sections) 2. Not capital expenditure 3. Not personal expenditure 4. Incurred wholly and exclusively for business or professional purposes What Section 34 Income Tax Act 2025 expressly disallows (same as old Section 37 + additions): -> Expenditure for offences or activities prohibited by law — UNCHANGED -> CSR obligations under Companies Act 2013 — UNCHANGED -> Political advertisement costs — UNCHANGED (clarified in new Act) -> Benefits/perquisites provided without TDS compliance — CONTINUED -> Settlement of regulatory proceedings (SEBI, CCI, etc.) — CARRIED FORWARD (Notification 38/2025 now embedded in new Act framework) NEW ADDITIONS in Section 34 Income Tax Act 2025: -> Compounding payments and settlements related to unlawful conduct: Explicitly non-deductible -> Clearer language on benefits/perquisites: Cannot claim deduction unless TDS under Section 393 (new Act equivalent of old 194R) was deducted on such benefit IMPORTANT: Section numbers for specific deductions also changed: Old Section 30 (rent, repairs) → New Section 28 Old Section 32 (depreciation) → New Section 33 Old Section 36 (bad debts, etc.) → New Section 35 Old Section 43B (payment basis) → NEW Section 37 |
Part 3 — Complete Section Mapping for Business Deductions
| Provision | Old Act Section | New Act Section | Status |
| General deduction (wholly & exclusively) | Section 37 | Section 34 | Changed (number only) |
| Payment-basis deductions (PF, ESI, bonus) | Section 43B | Section 37 | Changed — CRITICAL |
| Rent, rates, taxes, repairs on premises | Section 30 | Section 28 | Changed (number) |
| Employee welfare deductions | Section 36(1)(iv)/(v) | Section 29 | Changed (number) |
| Depreciation on block of assets | Section 32 | Section 33 | Changed (number) |
| Bad debts / provision for bad debts | Section 36(1)(vii) | Section 31 | Changed (number) |
| Specific disallowances | Section 40A | Section 36 | Changed (number) |
| Payment-basis: EPF/ESI contributions | Section 43B(a)/(b) | Section 37 | Changed — CRITICAL |
| Payment-basis: Bonus/leave encashment | Section 43B(c)/(f) | Section 37 | Changed — CRITICAL |
| Payment-basis: MSME payments (≤45 days) | Section 43B(h) | Section 37 | Changed — CRITICAL |
| Payment-basis: Bank loan interest | Section 43B(d) | Section 37 | Changed — CRITICAL |
| CSR disallowance | Section 37 Explanation 2 | Section 34 | Changed (number) |
| Settlement/compounding disallowance | Section 37 Explanation 3 | Section 34 | Changed (number) |
Part 4 — Section 34 Test in Practice
The Four Conditions for Allowability
Every expense claimed under Section 34 Income Tax Act 2025 must pass all four conditions. If any condition fails, the deduction is not allowed under this section (though it may be allowed under a specific section):
Condition 1 — Not Covered by Sections 28 to 36
If an expense has a specific deduction provision in the new Act (Sections 28 to 36), that specific section governs — not Section 34. Section 34 is the residual provision for expenses not covered elsewhere. Examples: Rent is covered by Section 28. Depreciation by Section 33. Bad debts by Section 31. These are not Section 34 claims.
Condition 2 — Not Capital Expenditure
This is the most litigated condition. Capital expenditure creates an enduring asset or benefit of a long-term nature. Revenue expenditure is incurred for the day-to-day running of the business. Key distinction: Payments for acquiring assets = capital. Payments for using assets in the business = revenue. Court-developed case law on what constitutes capital vs revenue expenditure — all preserved under Section 536 savings clause of new Act.
Condition 3 — Not Personal Expenditure
Personal expenditure of the proprietor, partner, or director charged to the business is not deductible. This is particularly relevant for proprietorships where personal and business finances are intermingled.
Condition 4 — Wholly and Exclusively for Business
“Wholly” means the full amount must be for business — no dual purpose. “Exclusively” means the sole purpose must be business, not mixed with personal or non-business objectives. If an expense has dual purpose (partly business, partly personal), it may be partly allowable based on facts, but the burden of proof is on the taxpayer.
Part 5 — Key Disallowances Under Section 34
Disallowance 1 — Offences and Prohibited Activities
Any expenditure incurred for a purpose that is an offence or prohibited by law is not deductible. This is absolute — it does not matter how commercially necessary the payment appeared. Bribes, illegal gratifications, payments that violate FEMA, customs, or other laws — all non-deductible.
Disallowance 2 — CSR Expenditure
Corporate Social Responsibility expenditure mandatory under Section 135 of the Companies Act, 2013 (listed in Schedule VII — healthcare, education, environment, etc.) is expressly not deductible. This continues from old Section 37 Explanation 2. Voluntary CSR above the mandatory threshold may be assessed separately based on facts.
Disallowance 3 — Regulatory Settlement Payments
From Assessment Year 2025-26 (i.e., FY 2024-25 onwards, continuing into Tax Year 2026-27), expenditure for settlement of proceedings under SEBI Act, Competition Act, FSSAI Act, Prevention of Money Laundering Act, and several other regulatory laws are not deductible — even if settled without admission of guilt. This was introduced by Notification 38/2025 under old Section 37 and is now embedded in Section 34 of the new Act.
| ✅ ACTION: Review all pending regulatory proceedings. Any settlement payments under SEBI, CCI, FSSAI, or PMLA — even compounding payments — should not be claimed as a deductible business expense from Tax Year 2026-27 under Section 34. |
Disallowance 4 — Benefits and Perquisites Without TDS
If your business provides any benefit or perquisite (free products, gifts, cash equivalents, travel, hospitality) to a business associate, agent, or customer that is not of a purely personal nature, TDS must be deducted under Section 393 equivalent (old Section 194R). If TDS is not deducted — the expenditure itself is not allowable as a business deduction under Section 34.
| ✅ ACTION: If your business gives gifts, free products, vouchers, sponsored travel, or other benefits to dealers/agents/customers — ensure TDS is deducted under the new Act equivalent of Section 194R. Without TDS compliance, the expense is non-deductible under Section 34. |
Part 6 — The Section 37 Confusion: Old 43B is Now New Section 37
| ⚠️ SECTION 37 OF NEW ACT = OLD SECTION 43B — NOT OLD SECTION 37 This is the most operationally dangerous renumbering in the IT Act 2025 for accounting and tax professionals. Section 37 of the NEW Act = Payment-basis deductions for: -> Employer contributions to EPF and ESI — deductible only on actual payment -> Bonus and commission to employees — deductible only on actual payment -> Leave encashment provisions — deductible only on actual payment -> Interest on loans from scheduled banks/institutions — deductible on payment -> MSME payments (43B(h) equivalent) — deductible only if paid within 45 days Section 34 of the NEW Act = General deduction test (was old Section 37) -> Wholly and exclusively for business | Not capital | Not personal | Not covered by 28-36 If you write “Section 37” in a Tax Year 2026-27 context — specify the Act clearly. New Act Section 37 = payment-basis deductions. NOT general deduction. |
Key Takeaways
- Old Section 37 (general deduction — “wholly and exclusively for business”) is now Section 34 of the Income Tax Act, 2025.
- Old Section 43B (payment-basis deductions — PF, ESI, bonus, bank interest, MSME) is now Section 37 of the new Act.
- The four-condition test under Section 34 is identical to old Section 37: not covered by Sections 28-36, not capital, not personal, wholly and exclusively for business.
- Disallowances continue unchanged: offence-related expenses, CSR, regulatory settlements (SEBI, CCI, FSSAI, PMLA), benefits/perquisites without TDS.
- New Act clarification: Compounding payments and settlements related to unlawful conduct are explicitly non-deductible under Section 34.
- Benefits/perquisites: TDS under Section 393 equivalent is a prerequisite for claiming the deduction — same as under old Section 194R framework.
- All case law developed on old Section 37’s “wholly and exclusively” test continues to apply under Section 34 through Section 536 savings clause.
Frequently Asked Questions
| Q: My CA cited “Section 37” in my tax working papers for Tax Year 2026-27. Is this right? A: It depends on which Section 37 your CA means. If they mean payment-basis deductions (PF, ESI, bonus, bank interest, MSME) — Section 37 of the new IT Act 2025 is correct. If they mean general business deduction (“wholly and exclusively for business”) — the correct section is Section 34 of the new Act, not Section 37. Ask your CA to specify which section is being cited and under which Act. Q: Our company paid a SEBI compounding fee in May 2026 for a FY 2023-24 violation. Can we claim it as a business expense? A: No. Regulatory settlement and compounding payments related to violations under SEBI Act are expressly disallowed from AY 2025-26 onwards (now embedded in Section 34 of new Act). The Tax Year 2026-27 payment is not deductible regardless of which financial year the violation related to. This was introduced by Notification 38/2025 and continues under Section 34 of the new Act. Q: We spent Rs.10 lakh on Diwali gifts to business associates. Can we claim it under Section 34? A: Only if TDS was deducted under the new Act equivalent of Section 194R (now under Section 393 of IT Act 2025). If you provided gifts exceeding Rs.20,000 in value to business associates and did not deduct TDS before providing the gift — the expenditure is not deductible under Section 34. Ensure TDS compliance under Section 393 for all business benefits provided to associates, agents, and customers. Q: Does all the old case law on Section 37 continue to apply? A: Yes. Section 536 of the Income Tax Act 2025 (the Repeal and Savings clause) preserves all judicial decisions, principles, and case law developed under the 1961 Act. The “wholly and exclusively for business” test, the capital vs revenue distinction, the dual purpose doctrine, and all other principles established by Supreme Court and High Court rulings on old Section 37 continue to apply under new Section 34. The name changed. The principles did not. |
| Old Section 37 (general deduction) -> Section 34 Income Tax Act 2025 Old Section 43B (payment-basis) -> Section 37 of IT Act 2025 — CRITICAL renumbering 4-condition test unchanged: not 28-36 | not capital | not personal | wholly & exclusively Disallowances: offences, CSR, regulatory settlements, benefits without TDS — all continue New addition: Compounding payments for unlawful conduct explicitly non-deductible Benefits/perquisites: TDS under Section 393 required before claiming deduction All old Section 37 case law preserved under Section 536 savings clause Always specify Act when citing “Section 37” — new Act S.37 ≠ old Act S.37 |
⚠ DISCLAIMER This article is for general informational purposes only. Section references are based on IT Act 2025. The renumbering between old Section 37 and new Section 37 vs new Section 34 Income Tax Act 2025 can cause confusion — always verify with the official text of the Act. Expenditure allowability depends on facts and circumstances of each case. Consult a qualified CA before making any tax deduction claims. For support: info@fimaco.in | fimaco.in.
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