Statutory Framework for MSME Delayed Payment Interest (Sections 15–25, MSMED Act, 2006)
Chapter V of the Micro, Small and Medium Enterprises Development (MSMED) Act, 2006 contains an overriding statutory mechanism designed to protect registered Micro and Small Enterprises (MSEs) from commercial payment defaults and working capital erosion. Under Sections 15 and 16, buyers who delay settlements beyond mandatory credit windows are liable to pay compound interest with monthly rests at three times (3x) the Reserve Bank of India (RBI) Bank Rate.
Payment must be completed on or before the contractually agreed date in writing, which cannot exceed 45 calendar days from delivery. If no written agreement exists, payment is legally due before the Appointed Day (within 15 calendar days).
Delayed amounts attract mandatory compound interest with calendar monthly rests at 3x the RBI Bank Rate. With the current RBI Bank Rate at 5.50%, the applicable statutory interest rate is 16.50% p.a.
Under Section 23 of the MSMED Act, interest paid or payable is strictly non-deductible from business income. Under Section 43B(h) of the Income Tax Act, delayed principal amounts are disallowed in the year of accrual.
Suppliers can file claims on the MSME Samadhaan portal. Under Section 19, buyers challenging an MSEFC award before courts must mandatorily deposit 75% of the total awarded amount.
1. Payment Timelines & The 45-Day Statutory Ceiling (Section 15)
Section 15 of the MSMED Act regulates the maximum credit period a buyer can avail when purchasing goods or obtaining services from a Micro or Small supplier. The law bifurcates transactions into two clear scenarios:
| Contractual Scenario | Statutory Due Date | Interest Accrual Date | Legal Provision |
|---|---|---|---|
| No Written Agreement | Day 15 from delivery / acceptance | Day 16 (Appointed Day) | Section 15 (Main Body) |
| Written Agreement (≤ 45 Days) | Contractually agreed date | Day immediately following agreed date | Section 15 (Main Body) |
| Written Agreement (> 45 Days) | Day 45 (Capped by Statute) | Day 46 onward | Proviso to Section 15 |
* Note: Contractual credit clauses purporting to allow 60, 90, or 120 days of credit are void ab initio to the extent they exceed 45 days, per the overriding non-obstante effect of Section 24 of the MSMED Act.
2. Date-Counting Analysis: What is the "Appointed Day" (Section 2(b))?
Under Section 2(b) of the MSMED Act, 2006, the "Appointed Day" is defined as "the day following immediately after the expiry of the period of fifteen days from the day of acceptance or the day of deemed acceptance of any goods supplied or services rendered by a supplier."
Under Section 9 of the General Clauses Act, 1897, the date of delivery/acceptance represents Day 0. Days 1 through 15 constitute the statutory grace period. Day 16 is the Appointed Day. If payment is made on or before Day 15, zero interest is payable. If the buyer defaults on Day 15, interest begins accruing from Day 16 (the Appointed Day).
⚖️ Deemed Acceptance vs. Written Objection Rules (Section 2(b) Explanation):
- Deemed Acceptance: Where no objection is made in writing within 15 days of delivery, the date of actual delivery is legally deemed to be the date of acceptance.
- Timely Written Objection: If the buyer serves a written objection regarding defect/quality within 15 days of delivery, the date on which the objection is resolved by the supplier becomes the effective Date of Acceptance.
- Late Objection (> 15 Days): Objections raised after 15 days from delivery are legally ineffective to postpone the acceptance date, and deemed acceptance defaults to the original delivery date.
3. The Compounding Engine & 3x RBI Bank Rate Formula (Section 16)
Section 16 of the MSMED Act mandates that interest on delayed payments is not computed on simple interest terms; instead, it requires compound interest calculated with monthly rests at exactly three times the Bank Rate notified by the RBI.
// Statutory Monthly Compounding Equation (Section 16)
Statutory Rate (r) = 3 × RBI Bank Rate
Monthly Interest (I) = P_opening × (r / 100 / 12) × (Days_in_Period / Days_in_Month)
Next Rest Principal (P_next) = P_opening + I
4. Step-by-Step Calculation Example
Consider a commercial invoice of ₹10,00,000 delivered on 1 January 2026 with no written agreement. Payment is delayed and settled on 1 April 2026.
| Monthly Rest | Period Range | Days | Annual Rate | Opening Balance | Period Interest | Closing Balance |
|---|---|---|---|---|---|---|
| Month 1 | 17 Jan 2026 → 17 Feb 2026 | 31 | 16.50% | ₹ 10,00,000 | ₹ 13,750 | ₹ 10,13,750 |
| Month 2 | 17 Feb 2026 → 17 Mar 2026 | 28 | 16.50% | ₹ 10,13,750 | ₹ 13,939 | ₹ 10,27,689 |
| Month 3 | 17 Mar 2026 → 1 Apr 2026 | 15 | 16.50% | ₹ 10,27,689 | ₹ 6,864 | ₹ 10,34,553 |
5. Supplier Eligibility & Judicial Precedents
Not all business entities are legally entitled to claim Section 16 penal interest or initiate arbitration before the MSEFC. Strict statutory eligibility thresholds apply:
- Micro & Small Enterprises: Eligible. Covered under Chapter V of the MSMED Act if registered under Udyam / UAM at the time of supply.
- Medium Enterprises: Ineligible. Excluded from Chapter V delayed payment interest and MSEFC recovery under Section 18.
- Retail & Wholesale Traders: While allowed Udyam registration for Priority Sector Lending (PSL) via Ministry OM dated 02.07.2021, MSEFC dispute recovery eligibility remains subject to judicial determination across state High Courts.
- Timing of Registration (Silpi Industries v. KSRTC, 2021 SC): The Supreme Court of India held that benefits of the MSMED Act can only be claimed if the supplier held valid registration on the date of entering the contract or executing the supply. Registration obtained retrospectively after supply execution does not confer Chapter V statutory benefits.
6. Income Tax Disallowance (Section 23 & 43B(h)) & Form MSME-1
Complete Tax Disallowance (Section 23): Section 23 of the MSMED Act operates with non-obstante authority over the Income Tax Act, 1961. Any penal interest paid or payable to an MSME under Section 16 cannot be claimed as an expense or deducted from business profits, resulting in pure after-tax financial loss for defaulting buyers.
Year-End Invoice Deduction (Section 43B(h)): Under Section 43B(h) of the Income Tax Act, payments due to Micro and Small enterprises beyond Section 15 time limits that remain outstanding at year-end are disallowed in that financial year and are taxable until the year of actual payment.
Half-Yearly Corporate Reporting (Form MSME-1): Under Section 405(4) of the Companies Act, 2013, specified companies having outstanding dues to Micro and Small suppliers exceeding 45 days must file half-yearly returns in Form MSME-1 with the Registrar of Companies (ROC) by 31 October and 30 April.