TDS and statutory controls
What Is Section 43B(h)? MSME Payment Tax Rule
Direct answer
Section 43B(h) links the timing of an income-tax deduction to payment discipline for amounts payable to micro or small enterprises. If a covered amount is paid beyond the time limit in section 15 of the MSMED Act, the otherwise allowable business deduction is permitted on actual payment. The ordinary return-filing-date relief in section 43B does not apply to clause (h).
Also known as: MSME payment tax rule, micro and small enterprise payment deduction rule.
Key takeaways
- Section 15 of the MSMED Act sets the payment clock; Section 43B(h) creates a separate income-tax deduction-timing consequence.
- Without a written payment agreement, payment is required before the appointed day tied to the 15-day acceptance period.
- A written agreement cannot extend the MSMED Act period beyond 45 days from acceptance or deemed acceptance.
- Clause (h) covers micro and small enterprises, not medium enterprises merely because all three are called MSMEs.
- Vendor classification, acceptance date, written objections, terms, payment date and year-end status must be linked at invoice level.
Two connected rules with different jobs
| Rule | What it controls | Core consequence |
|---|---|---|
| MSMED Act section 15 | The buyer’s deadline to pay a qualifying supplier for accepted goods or services. | Pay by the written agreed date, which cannot exceed 45 days from acceptance or deemed acceptance; without a written agreement, pay before the appointed day. |
| MSMED Act sections 16 and 23 | Delayed-payment interest and its income-tax treatment. | Delay can attract statutory compound interest, and section 23 says that interest is not deductible in computing income under the Income-tax Act. |
| Income-tax Act section 43B(h) | When an otherwise allowable expense is deducted for income-tax computation. | A covered amount payable beyond the section 15 time limit is allowed only on actual payment. The general return-due-date proviso expressly excludes clause (h). |
A late payment can therefore have commercial and tax effects. Paying after 45 days does not become compliant because it was paid before the income-tax return due date. Conversely, section 43B(h) is not the source of the 15-day or 45-day payment period; those periods come from the MSMED Act.
Which suppliers and amounts need review
- Identify the legal supplier. Use the contracting entity, not a brand, branch nickname or bank beneficiary.
- Establish micro or small status. Clause (h) uses the meanings assigned in the MSMED Act. A “medium” label is not covered by the text of clause (h). Obtain current evidence and have uncertain status reviewed.
- Confirm supplier status under the MSMED Act. Udyam material is important evidence, but onboarding staff should not invent legal conclusions from an unchecked screenshot or a later-dated certificate.
- Identify goods or services supplied. Connect the expense and payable to the supply, acceptance evidence and supplier classification.
- Determine the section 15 deadline. Read the written payment agreement and acceptance record. Do not substitute the ERP due date if it conflicts with the statute.
- Compare actual payment with that deadline. For an amount paid beyond the limit, section 43B(h) governs the deduction on actual-payment basis.
Section 43B(h) was inserted by the Finance Act 2023 with effect from 1 April 2024. CBDT Circular 1/2024 describes the measure as applying from assessment year 2024-25. Period tagging matters: a current vendor flag should not rewrite the historical law without an effective date.
How the MSMED Act payment clock works
| Fact pattern | Section 15 rule | Evidence |
|---|---|---|
| Written agreement exists | Payment is due by the agreed date, but the agreed period cannot exceed 45 days from acceptance or deemed acceptance. | Executed contract or purchase order, amendment history and acceptance event. |
| No written agreement | Payment must be made before the “appointed day”; section 2 defines that day as the day immediately after the 15-day period from acceptance or deemed acceptance. | Delivery or service completion, acceptance and absence of an effective written term. |
| Written objection within 15 days | The day of acceptance is the day the supplier removes that written objection. | Dated, specific objection, supplier response and closure approval. |
| No written objection within 15 days | Deemed acceptance is the actual delivery of goods or rendering of services. | Goods receipt, service evidence and exception log. |
A generic internal hold is not automatically a statutory objection. Record what was defective, when the supplier was notified in writing, and when the objection was removed. A payment block raised after 15 days may still be useful operationally, but it does not change deemed acceptance under the definition merely because the ERP date was edited.
Worked Section 43B(h) timeline
Fictional assumptions: Aranya Retail receives accepted services from a supplier whose covered micro-enterprise status and supplier status have been verified. Services are accepted on 10 January 2026. A valid written agreement sets payment 45 days after acceptance, and the legally reviewed due-date calculation is 24 February 2026. No written objection exists. The ₹4,80,000 expense is otherwise deductible and remains unpaid at 31 March 2026. Payment is made on 10 April 2026.
- 10 January: acceptance starts the agreed payment clock.
- 24 February: latest payment date under the assumed 45-day written term.
- 25 February: the unpaid amount is beyond the section 15 time limit.
- 31 March: the books still contain the payable, but section 43B(h) prevents the ₹4,80,000 deduction in that financial year on these assumptions.
- 10 April: actual payment supports considering the deduction in the financial year of payment; it does not erase the prior MSMED Act delay.
The normal section 43B proviso that can preserve certain deductions when paid by the return-filing due date excludes clause (h). Treating 10 April as “before the return due date” therefore does not restore the prior-year deduction. This example is educational and assumes the expense, supplier status, acceptance and day count have been legally validated.
Why the vendor master determines control quality
A year-end spreadsheet cannot repair weak onboarding. The vendor master should store the legal name, PAN, enterprise identifier, classification, evidence date, activity, registration history, effective period, agreement terms, contract owner and review status. Preserve the supplier’s declaration and independent verification with an audit trail.
Classification can change, documentation can arrive late, and business relationships can use several vendor codes for one legal supplier. Build effective-dated records rather than overwriting last year’s status. Detect duplicate PAN or enterprise identifiers and route conflicting declarations for review. Do not classify every supplier containing “MSME” as covered: clause (h) names micro and small enterprises, and the MSMED Act supplier definition and facts need analysis.
Invoice records need their own acceptance facts. Capture actual delivery or service-rendering evidence, written objections raised within 15 days, objection removal, agreement date, agreed period, statutory due date and payment clearing date. Changing a standard payment term in the master should not silently recalculate a closed invoice.
Month-end and year-end deduction workflow
- Extract open and recently paid trade payables for reviewed micro and small suppliers.
- Join each line to acceptance, agreement and objection evidence; quarantine missing data rather than defaulting to 45 days.
- Calculate the section 15 deadline under the applicable fact pattern and retain the inputs.
- Classify each invoice using the year-end treatments below.
| Year-end bucket | Section 43B(h) treatment | Evidence |
|---|---|---|
| Paid within the Section 15 limit | No clause (h) year-end adjustment on these assumptions. | Acceptance, statutory due date and cleared payment. |
| Paid after the Section 15 limit but within the same financial year | Section 43B allows the otherwise allowable deduction in the financial year of actual payment. Preserve same-year payment evidence; do not create a future-year reversal merely because the MSMED payment was late. | Late-payment classification and bank-cleared payment date. |
| Unpaid but not beyond the Section 15 limit at year-end | Do not add it to the overdue-unpaid clause (h) adjustment solely because it is open. Monitor the statutory deadline and obtain advice if it is later breached. | Acceptance, agreement and pending due date. |
| Unpaid beyond the Section 15 limit at year-end | Record the Section 43B(h) adjustment for the otherwise allowable expense and carry an invoice-level reference for deduction when actual payment occurs in a later financial year. | Overdue status, tax workpaper and later cleared payment. |
Track MSMED Act delayed-payment interest separately because section 23 disallows that interest. Reconcile the invoice-level subledger to the general ledger, financial-statement MSME disclosures and tax computation. Do not net credit notes, advances or payments without a documented allocation, and obtain tax review for classification conflicts or disputed acceptance.
Section 43B(h) month-end checklist
- Refresh supplier declarations and verification for micro or small status with effective dates.
- Review new, changed and duplicated vendor records before payment terms are activated.
- Confirm that medium enterprises are not included solely because they fall under the broad MSME label.
- Link every covered invoice to delivery or service evidence and the acceptance date.
- Require written objections to be specific, timestamped and issued within 15 days; record removal separately.
- Read the written agreement and cap the modeled period at 45 days from acceptance or deemed acceptance.
- Where no written agreement exists, calculate payment before the appointed day based on the 15-day definition.
- Age invoices using the statutory deadline, not only the commercial ERP due date.
- Escalate upcoming breaches early enough for payment approval and bank processing.
- Retain actual-payment evidence for amounts paid late within the same financial year; adjust only covered principal unpaid beyond the statutory limit at year-end.
- Do not apply the ordinary return-due-date proviso to clause (h).
- Track statutory delayed-payment interest separately and prevent an income-tax deduction under MSMED Act section 23.
- Carry year-end disallowed principal forward by invoice and release it only against verified later-year actual payment without duplication.
Finnoto can organize evidence, alerts, approvals and reconciliations. It cannot decide disputed acceptance, enterprise status or deductibility; qualified legal and tax advisers should review material or ambiguous cases.
Frequently asked questions
Does Section 43B(h) apply to every MSME?
No. Its text refers to micro and small enterprises as defined by the MSMED Act. It does not name medium enterprises, and supplier status still needs fact-specific review.
Is the payment deadline always 45 days?
No. A written agreement may set a shorter period and cannot exceed 45 days. Without a written agreement, payment is required before the appointed day tied to the 15-day acceptance period.
Do the 15 or 45 days come from Section 43B(h)?
No. The payment periods come from section 15 and the definitions in section 2 of the MSMED Act. Section 43B(h) attaches an income-tax deduction-timing consequence.
Does paying before the income-tax return due date preserve the deduction?
Not where clause (h) applies to a payment beyond the MSMED Act limit. The ordinary section 43B return-due-date proviso expressly excludes clause (h).
What counts as acceptance when goods are disputed?
A written objection made within 15 days makes acceptance the day the supplier removes the objection. Without such an objection, deemed acceptance is the actual delivery or rendering date.
Is delayed-payment interest deductible?
MSMED Act section 23 states that interest payable or paid under that Act is not allowed as an income-tax deduction. Track it separately from the principal amount.
Can Udyam data alone automate the tax conclusion?
It is important evidence, but legal supplier status, effective dates, classification, activity, acceptance and contract facts require controlled verification and sometimes professional advice.
Sources and further reading
- Income Tax Department: Finance Act 2023 inserting Section 43B(h)Verified Jul 25, 2026
- Income Tax Department: Income-tax Act 1961 as amended by Finance (No. 2) Act 2024, Section 43BVerified Jul 25, 2026
- Central Board of Direct Taxes: Circular No. 1 of 2024: explanatory notes to Finance Act 2023Verified Jul 25, 2026
- India Code: MSMED Act 2006, Section 15: liability of buyer to make paymentVerified Jul 25, 2026
- Ministry of Micro, Small and Medium Enterprises: Micro, Small and Medium Enterprises Development Act, 2006Verified Jul 25, 2026
Educational disclaimer: This material is general information, not legal, tax, or accounting advice. Check current official guidance and your facts with a qualified professional.
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