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MSME Samadhan & 45-Day Interest Calculator

Calculate statutory compound interest under MSMED Act Section 16 & check Income Tax Sec 43B(h) disallowance rules.

Invoice & Agreement Parameters

Statutory rate is 3x RBI Bank Rate (e.g. 19.5% p.a. compounded monthly).

Income Tax Section 43B(h) Compliance Notice

As per Finance Act 2023, any sum payable by a buyer to a micro or small enterprise beyond the 15/45 day limit is disallowed as a business expense deduction in computing taxable profits for that financial year, and is taxed as business income in the year of non-payment.

Samadhan Settlement SummarySec 16 Compounded

Statutory Due Date2026-04-01
Delayed Days212 Days
Statutory Interest Rate19.5% p.a. (Monthly)
Compound Interest Amount₹29,704.56

Total Payable Amount

Principal + Compound Interest

₹2,79,704.56
File Case on MSME Samadhan Portal

Frequently Asked Questions on MSME 45-Day Rule & Samadhan Recovery

What is the 45-Day Payment Rule for MSMEs Under Section 15 of MSMED Act?

Section 15 of the Micro, Small and Medium Enterprises Development (MSMED) Act, 2006 mandates that buyers procuring goods or services from registered micro and small enterprises must make payment within the agreed credit period, which cannot exceed 45 days from the date of acceptance or deemed acceptance. If there is no written agreement, the statutory credit limit defaults strictly to 15 days. Failure to pay within this timeframe triggers penal compound interest at three times the RBI bank rate.

Enterprise ClassificationMax Credit Period AllowedLegal Consequence of Delay
Micro & Small EnterprisesMax 45 days (with agreement) / 15 days (without agreement)3x RBI repo rate monthly compound interest + Sec 43B(h) disallowance
Medium EnterprisesGoverned by normal commercial contract termsStandard civil contract remedies (Interest as per agreement)

How Does Income Tax Section 43B(h) Treat Unpaid MSME Invoices?

Introduced via the Finance Act 2023, Section 43B(h) of the Income Tax Act provides that any sum payable by an enterprise to a micro or small supplier beyond the statutory 15 or 45-day threshold is strictly disallowed as a deduction for computing business profits. The disallowed amount is added back to the buyer's taxable income for that financial year and taxed accordingly, even if paid in subsequent years.

Payment ConditionTax Deduction StatusFiscal Year Impact
Paid within 15 / 45 daysFully Allowed as Business ExpenseDeductible in year incurred
Unpaid beyond 15 / 45 days at year-endDisallowed & Added to Taxable ProfitsTaxed in the current financial year