Section 43B(h) (MSME Payment Deduction)

Section 43B(h) (MSME Payment Deduction) is a statutory provision under India's Income-tax Act, 1961 that disallows tax deductions for business expenses payable to registered micro and small enterprises if those dues are not settled within the timelines mandated by the MSMED Act, 2006. Deductions for delayed amounts are allowed only in the previous year in which actual payment is completed.

How Section 43B(h) Operates: Statutory Payment Timelines

Enacted under the Finance Act 2023, Section 43B(h) applies to all assessees maintaining books of account on a mercantile or accrual basis. The provision links the tax deductibility of purchases and operating expenditures directly to the payment deadlines specified in Section 15 of the Micro, Small and Medium Enterprises Development (MSMED) Act, 2006.

Section 15 prescribes two distinct settlement windows based on commercial agreements:

• No Written Agreement: Payment must occur within 15 days from the day of acceptance or deemed acceptance of goods or services. The day of acceptance marks the date of physical delivery or service completion. If the buyer submits a formal written objection regarding quality or specifications within 15 days, the clock begins only when the vendor resolves the objection.
• Written Agreement Exists: Payment must follow agreed credit terms, but the permissible credit period cannot exceed 45 days. Even if a commercial contract specifies 60 or 90 days, the law strictly enforces a 45-day limit for income tax purposes.

If an enterprise settles the invoice within the applicable 15-day or 45-day window, the expenditure remains fully deductible in the financial year of accrual. If payment breaches the statutory deadline and remains outstanding as of 31 March, the amount is disallowed and added back to taxable profits. You can claim that income tax deduction only in the subsequent fiscal year when actual disbursement occurs.

Scope and Classification: Who Is Covered?

Section 43B(h) does not apply to every supplier balance. Applicability depends strictly on the vendor's legal classification under the MSMED Act on the transaction date, as maintained on official portals like the Income Tax Department registry:

• Micro and Small Enterprises: The section applies solely to suppliers holding a valid Udyam Registration Certificate as a Micro or Small enterprise. Under the composite criteria effective from 1 April 2025, a micro enterprise has an investment in plant and machinery up to Rs 2.5 crore and turnover up to Rs 10 crore. A small enterprise has an investment up to Rs 25 crore and turnover up to Rs 100 crore.
• Medium Enterprises Excluded: Medium enterprises (turnover up to Rs 500 crore and investment up to Rs 125 crore) fall outside Section 43B(h). Delayed payments to medium enterprises do not trigger tax disallowance under this clause.
• Traders Excluded: Under Ministry of MSME circulars, retail and wholesale traders registered on Udyam qualify only for priority sector lending benefits. They are excluded from the delayed-payment recovery provisions of Chapter V of the MSMED Act, keeping invoices from pure trading entities outside Section 43B(h).
• Assessees under Presumptive Tax: Taxpayers computing business profits under presumptive taxation schemes, such as Section 44AD (Presumptive Income) or Section 44ADA, are exempt because their tax liability is calculated on gross turnover without separate expense deductions.

How Section 43B(h) Differs from Other Statutory Payments

Finance leaders must recognise a major difference between Section 43B(h) and other clauses under Section 43B. For conventional statutory payments like provident fund contributions, GST dues, or bank interest, taxpayers can retain the deduction for the accrual year by paying before the income tax return filing due date under Section 139(1).

Section 43B(h) explicitly excludes itself from this return-filing relaxation. Paying an MSME vendor after 31 March, even well before submitting the income tax return, will not protect the deduction if the 15-day or 45-day statutory limit was breached prior to the year-end.

Furthermore, delayed payments trigger non-deductible penal interest under Section 16 of the MSMED Act. Buyers must pay monthly compounding interest at three times the Bank Rate notified by the Reserve Bank of India. Under Section 23 of the MSMED Act, this interest expenditure cannot be claimed as a tax deduction and must be reported under Clause 22 of Form 3CD.

The following flowchart illustrates how accounts payable teams must evaluate vendor invoices to determine deductibility under Section 43B(h).

flowchart TD
    A["Supplier Invoiced"] --> B{"Is Supplier Micro or Small?"}
    B -- "No" --> C["Standard Credit Terms Apply"]
    B -- "Yes" --> D{"Written Contract Exists?"}
    D -- "Yes" --> E["Pay within Agreed Terms (Max 45 Days)"]
    D -- "No" --> F["Pay within 15 Days"]
    E --> G{"Paid by FY End within Limit?"}
    F --> G
    G -- "Yes" --> H["Deduction Allowed in Accrual Year"]
    G -- "No" --> I["Disallowed in Current FY; Deduct upon Payment"]

Practical Example: Tax Impact of Delayed MSME Payments

Consider Alpha Tech Pvt Ltd, an enterprise subject to an effective corporate tax rate of 25.17%. During FY 2025-26, the company procures components worth Rs 20,00,000 from an Udyam-registered small manufacturer. The invoice is accepted on 10 February 2026.

If Alpha Tech operates under a written contract specifying 45-day terms, payment is due on or before 27 March 2026. If settled on 25 March 2026, the entire Rs 20,00,000 is allowed as a business deduction in FY 2025-26.

Suppose instead the commercial contract states 60-day terms. Because statutory law caps terms at 45 days, the payment remains legally due by 27 March 2026. If Alpha Tech disburses funds on 12 April 2026, the invoice crossed the statutory deadline and remained unpaid at fiscal year-end.

Consequently, the full Rs 20,00,000 is disallowed in FY 2025-26, adding Rs 5,03,400 in direct tax outflow for that year. The company also owes compound penal interest under Section 16 of the MSMED Act. The Rs 20,00,000 expense can only be deducted against profits in FY 2026-27.

Common Compliance Pitfalls in Accounts Payable

Corporate audits routinely reveal preventable oversights in vendor workflows:

• Outdated Vendor Master Data: Relying on historical declarations without validating current Udyam certificates causes errors when vendors transition from small to medium status or lose registration.
• Ignoring Deemed Acceptance: Failing to log formal, written quality disputes within 15 days of material receipt keeps the default payment clock running.
• Misclassifying Traders: Applying MSME credit restrictions to wholesale distributors strains vendor relationships unnecessarily, as traders are not covered under Chapter V.
• Misunderstanding Year-End Timing: Assuming April or May payments before the ITR filing due date preserve the deduction for unpaid March invoices.
• Reporting Mismatches: Neglecting to align aged payables between Form 3CD Clause 22 and half-yearly reporting to the Ministry of Corporate Affairs on Form MSME-1.

Streamlining Section 43B(h) (MSME Payment Deduction) Compliance

Managing MSME payment obligations across thousands of vendor records requires embedding statutory validation directly into daily accounts payable operations.

At MYND Integrated Solutions, our proprietary AP automation software and managed finance and accounts outsourcing teams integrate real-time Udyam validation, smart invoice approval workflows, and automated aging alerts. These structured processes enable enterprise clients to achieve 80% touchless AP processing and maintain 99% compliance achievement across their procurement cycles. For operational checklists on designing these controls, review our guide on MSME vendor payment compliance.

Conclusion

Rigorous management of Section 43B(h) (MSME Payment Deduction) protects corporate liquidity while honoring statutory commitments to small businesses. By automating vendor classification, capping contractual credit terms at 45 days, and prioritizing timely disbursements before 31 March, finance leaders eliminate tax disallowances and ensure seamless tax compliance.

Frequently Asked Questions

Does Section 43B(h) apply to unregistered MSMEs?

No. Section 43B(h) applies only to suppliers registered as micro or small enterprises holding a valid Udyam Registration Certificate. If an enterprise qualifies by size but has not obtained Udyam registration, the provisions and tax disallowances do not apply.

Can a business agree to 60-day credit terms with an MSME?

While commercial parties may sign contracts with longer terms, Section 15 of the MSMED Act supersedes private agreements by capping credit at 45 days. For Section 43B(h) tax deductions, payments made after 45 days are treated as non-compliant.

What happens if a delayed MSME invoice is settled in the next financial year?

If an invoice is unpaid past statutory timelines as of 31 March, the expense is disallowed in that assessment year. However, the deduction is not permanently forfeited. The full amount is allowed as a valid business deduction in the subsequent financial year when payment is executed.

Is interest paid on delayed MSME payments tax-deductible?

No. Section 23 of the MSMED Act expressly prohibits buyers from claiming penal interest paid under Section 16 as an allowable expenditure under the Income-tax Act. Tax auditors must report these non-deductible interest amounts under Clause 22 of Form 3CD.