MSME 45-Day Payment Rule: Compliance Guide Under Section 405

The MSME 45-day payment rule requires every buyer in India to pay Micro, Small, and Medium Enterprise suppliers within 45 days of accepting goods or services. Governed by Section 15 of the MSMED Act, 2006, this rule carries direct income tax consequences under Section 43B(h) of the Income Tax Act, 1961, where payments exceeding the deadline are disallowed as business expenses. With the proposed Section 405 of the Income Tax Act, 2025 expected to continue these provisions, businesses must build permanent compliance systems. This guide covers the complete legal framework, payment timelines, interest calculations, Form MSME-1 filing, MSME Samadhaan complaint process, and practical steps to avoid penalties.

What is the MSME 45-Day Payment Rule?

The MSME 45-day payment rule is a statutory obligation under Section 15 of the Micro, Small and Medium Enterprises Development Act, 2006 (MSMED Act) that mandates every buyer to pay an MSME supplier within a specified timeline after accepting goods or services. The rule exists to protect small businesses from cash flow disruption caused by delayed payments from larger buyers.

Under Section 15, two payment timelines apply based on whether a written agreement exists between the buyer and MSME supplier:

• With written agreement: Payment must be made by the date specified in the agreement, but this date cannot exceed 45 days from the date of acceptance or deemed acceptance of goods or services
• Without written agreement: Payment must be made within 15 days from the date of acceptance or deemed acceptance

The term "acceptance" means the buyer has confirmed receipt and quality of goods or services. "Deemed acceptance" applies automatically if the buyer does not communicate acceptance or rejection within 15 days of delivery, as defined under Section 2(b) of the MSMED Act. This prevents buyers from indefinitely delaying the payment clock by not acknowledging receipt.

The rule applies to every transaction between a buyer and a registered MSME supplier, regardless of the transaction value. A ₹5,000 purchase from a Micro enterprise vendor carries the same 45-day obligation as a ₹5 crore contract with a Medium enterprise manufacturer. The government introduced this rule because delayed payments were the leading cause of working capital stress for MSMEs, with industry surveys showing that over 40% of MSME invoices in India were paid beyond 60 days. The 45-day cap, combined with the penal interest under Section 16 and the income tax disallowance under Section 43B(h), creates a three-layer enforcement framework that makes compliance financially rational for buyers.

Who Does This Rule Apply To?

The MSME 45-day payment rule applies to every "buyer" as defined under Section 2(b) of the MSMED Act. A buyer is any person or entity that purchases goods or services from an MSME supplier for consideration. This covers a wide range of entities.

Buyers Subject to the Rule

• Private Limited Companies and Public Companies purchasing raw materials, components, IT services, or any other goods/services from MSME vendors
• Limited Liability Partnerships (LLPs) engaging MSME suppliers for business operations
• Partnership Firms and Sole Proprietorships with MSME vendors in their supply chain
• Government Departments and Public Sector Undertakings (PSUs) procuring from MSMEs under government procurement policies
• Large Corporations and MNCs with MSME vendors in their vendor ecosystem
• Non-profit organisations, trusts, and societies purchasing from MSME suppliers

Suppliers Protected by the Rule

Only suppliers holding a valid Udyam Registration Number (URN) from the official Udyam portal at udyamregistration.gov.in qualify for protection. Unregistered suppliers, even if they meet the MSME criteria, cannot claim the 45-day payment protection, file Samadhaan complaints, or trigger Section 43B(h) consequences for their buyers.

MSME Classification: Who Qualifies as Micro, Small, or Medium?

The MSME classification criteria were revised in June 2020 under the Aatmanirbhar Bharat package. The current thresholds combine investment in plant and machinery with annual turnover, and both conditions must be satisfied simultaneously.

The classification is verified through the Udyam portal, which pulls investment data from the supplier's Income Tax Return and turnover data from GST returns. Buyers should note that a supplier's MSME classification can change during a financial year if their investment or turnover crosses a threshold. The 45-day payment obligation applies as long as the supplier held valid Udyam registration at the time of the transaction.

Manufacturing enterprises, service providers, and trading businesses all qualify for Udyam registration and MSME status. The classification applies equally to all three activity types. A trading company with ₹8 crore investment and ₹40 crore turnover qualifies as a Small Enterprise and receives full protection under the 45-day payment rule.

Payment Timeline Rules: 15 Days vs 45 Days

Section 15 of the MSMED Act creates two distinct payment timelines based on the existence of a written agreement. Understanding which timeline applies to each transaction is critical for compliance.

Timeline 1: No Written Agreement - 15 Days

When no written agreement specifies a payment date between the buyer and MSME supplier, the buyer must pay within 15 days from the date of acceptance (or deemed acceptance) of goods or services. This is the default timeline and applies to most spot purchases, one-time service engagements, and transactions conducted on verbal terms or standard purchase orders that do not specify a payment date.

Timeline 2: Written Agreement Exists - Up to 45 Days

When a written supply agreement specifies a payment date, the buyer must pay by that date. However, the agreed payment date cannot exceed 45 days from the date of acceptance or deemed acceptance. Any clause in the agreement specifying a payment period beyond 45 days is void under the MSMED Act. Common examples include:

• Net 30 days payment terms in the supply contract - compliant (within 45 days)
• Net 45 days from invoice date - compliant only if invoice date equals acceptance date
• Net 60 or Net 90 days - non-compliant, the 45-day cap overrides the agreement

When Does the Clock Start?

The payment timeline begins on the date of acceptance or deemed acceptance of goods or services, not the invoice date, purchase order date, or delivery date. Acceptance occurs when the buyer inspects and confirms the quality and quantity of goods or services. If the buyer does not communicate acceptance or rejection within 15 days of delivery, deemed acceptance applies automatically.

Income Tax Impact: Section 43B(h) Explained

Section 43B(h) of the Income Tax Act, 1961, inserted by the Finance Act 2023 and effective from Assessment Year 2024-25, is the provision that gives the MSME 45-day payment rule its strongest enforcement mechanism. Before this amendment, buyers who delayed MSME payments faced only interest liability under the MSMED Act. Now, the delayed payment directly increases the buyer's income tax liability.

How Section 43B(h) Works

Section 43B(h) adds payments to MSME suppliers to the list of expenses that are deductible only on actual payment basis, not on accrual basis. This means:

• If a buyer pays an MSME supplier within the statutory timeline (15 or 45 days), the expense is deductible in the year the liability is incurred (accrual basis applies normally)
• If a buyer pays after the statutory timeline, the expense is deductible only in the year of actual payment, not the year of purchase
• If payment remains outstanding at the time of ITR filing, the amount is disallowed entirely and added back to taxable income

Worked Example: Section 43B(h) Impact

Consider a Private Limited Company that purchases ₹50,00,000 worth of components from an MSME supplier on 1 December 2025 (acceptance date). The written agreement specifies Net 45 days.

In the fourth scenario, the company's taxable income increases by ₹50 lakh. At a 25% corporate tax rate, this results in an additional tax liability of ₹12.5 lakh (plus surcharge and cess). The expense becomes deductible in the subsequent year when actual payment is made, but the cash flow impact in the current year is significant.

Step-by-Step MSME Payment Compliance Process

Building a compliant MSME payment system requires changes to procurement, accounting, and tax processes. Follow these steps to establish a permanent compliance framework.

Step 1: Build an MSME Supplier Master Register

Create a centralized register of all suppliers with their Udyam Registration Numbers, MSME classification (Micro, Small, or Medium), and registration validity. Verify each supplier's status on the Udyam portal at udyamregistration.gov.in using the 'Print/Verify' function. Update this register quarterly because suppliers can register, deregister, or get reclassified during the year.

Step 2: Update Purchase Order Templates and Supply Agreements

Review all existing supply agreements with MSME vendors. Remove any payment terms exceeding 45 days. If your standard terms specify Net 60 or Net 90, override them with Net 45 (or shorter) for MSME suppliers. Update your standard purchase order template to include a field for the supplier's Udyam Registration Number. Add a clause confirming that payment will be made within the MSMED Act timeline.

Step 3: Configure Your Accounting System

Set up your ERP or accounting software to tag MSME supplier invoices with a separate flag or ledger code. Configure the system to record the acceptance date (not just invoice date) for each MSME transaction. Create automated alerts at 10, 30, and 40 days from acceptance to flag approaching deadlines. Generate a weekly report of MSME invoices approaching or exceeding the 45-day deadline.

Step 4: Establish a Payment Priority Queue

Process MSME supplier payments before other vendor payments in each payment cycle. Many companies run weekly or bi-weekly payment batches - add MSME invoices to every batch regardless of the amount. Consider setting up auto-pay for recurring MSME suppliers with fixed monthly invoices to eliminate manual processing delays.

Step 5: Record Acceptance Dates Accurately

The 45-day clock starts from acceptance, not from invoice date or delivery date. Train your procurement and warehouse teams to record the exact date of goods receipt and quality acceptance in the system. For services, record the date the service deliverable was accepted by the project manager or department head. If no acceptance is communicated within 15 days, the system should automatically record deemed acceptance.

Step 6: Conduct Monthly Reconciliation

At the end of each month, reconcile MSME supplier balances against the acceptance date register. Identify any payments that have crossed or are approaching the 45-day deadline. Calculate interest liability for any delayed payments. Prepare the data required for half-yearly Form MSME-1 filing on a running basis rather than scrambling at the deadline.

Form MSME-1: Filing Process and Due Dates

Every company (registered under the Companies Act, 2013) that has outstanding payments to MSME suppliers exceeding 45 days must file Form MSME-1 on the MCA21 portal. This is a half-yearly disclosure requirement that applies even if the delayed payments have been settled during the reporting period.

Due Dates for Form MSME-1

Information Required in Form MSME-1

• Name of the MSME supplier
• Udyam Registration Number of the supplier
• Amount outstanding as on the last date of the half-year
• Date from which the payment is overdue
• Reason for delay in payment
• Whether interest has been paid on the delayed amount
• Total outstanding amount to all MSME suppliers

Filing Process

1. Log in to the MCA21 portal (mca.gov.in) using the company's CIN and authorised signatory credentials
2. Navigate to MCA Services → Company Forms → Form MSME-1
3. Select the reporting period (H1: April-September or H2: October-March)
4. Enter details of each MSME supplier with outstanding payments beyond 45 days
5. Attach a CSV file if the number of suppliers exceeds the inline form limit
6. Certify the form using the authorised signatory's Digital Signature Certificate (DSC)
7. Pay the filing fee (if applicable) and submit

Interest Calculation on Delayed MSME Payments

Section 16 of the MSMED Act mandates that a buyer who delays payment beyond the statutory timeline must pay compound interest at three times the bank rate notified by the Reserve Bank of India. This interest accrues from the date the payment was due until the date of actual payment.

Current Interest Rate

The RBI bank rate as of 2026 is 6.50%. Under Section 16, the applicable interest rate is 3 x 6.50% = 19.50% per annum, compounded monthly. This rate is significantly higher than most commercial lending rates and acts as a strong deterrent against payment delays.

Interest Calculation Formula

The compound interest is calculated monthly using this formula:

Interest = Principal x [(1 + r/12)^n − 1]

Where:

• Principal = Outstanding amount due to the MSME supplier
• r = Annual interest rate (0.195 for 19.50%)
• n = Number of months of delay

Worked Example

A company owes ₹10,00,000 to an MSME supplier. The payment was due on 15 January 2026 (45 days from acceptance). The company pays on 15 April 2026 - a delay of 3 months.

• Monthly rate = 19.50% / 12 = 1.625%
• Interest = ₹10,00,000 x [(1 + 0.01625)^3 − 1]
• Interest = ₹10,00,000 x [(1.01625)^3 − 1]
• Interest = ₹10,00,000 x [1.04948 − 1]
• Interest = ₹10,00,000 x 0.04948
• Interest = ₹49,486 (approximately)

The buyer must pay ₹10,49,486 to the MSME supplier (₹10,00,000 principal + ₹49,486 interest). For a 6-month delay on the same amount, the interest rises to approximately ₹1,01,036 - over 10% of the principal.

MSME Samadhaan Portal: How to File Delayed Payment Complaints

The MSME Samadhaan portal (samadhaan.msme.gov.in) is the government's online platform for MSME suppliers to file delayed payment complaints against buyers. Only enterprises with a valid Udyam Registration Number can use this portal.

Filing a Complaint on Samadhaan

1. Visit samadhaan.msme.gov.in and register as an MSME supplier using your Udyam Registration Number
2. Click "File a Case" and enter the buyer's details (name, address, PAN/CIN/GSTIN)
3. Enter invoice details: invoice number, date, amount, goods/services description
4. Specify the date of acceptance or delivery of goods/services
5. Upload supporting documents: invoice copy, purchase order, delivery challan, communication records
6. Enter the total amount due including principal and interest calculated under Section 16
7. Select the state where the buyer's registered office is located (this determines the MEFC jurisdiction)
8. Submit the complaint - a unique case number is generated for tracking

What Happens After Filing?

The complaint is forwarded to the Micro and Small Enterprise Facilitation Council (MEFC) in the buyer's state or district. The MEFC sends a notice to the buyer within 15 to 30 days. Both parties are called for conciliation. If conciliation fails, the MEFC proceeds to arbitration and passes a binding award. The supplier can track complaint status online using the case number.

Documents to Attach with the Samadhaan Complaint

A well-documented complaint increases the chances of a favourable outcome at the MEFC. Attach the following documents when filing on the Samadhaan portal:

• Tax invoice: GST-compliant invoice showing the goods/services supplied, date, and amount
• Purchase order: The buyer's purchase order confirming the order details and agreed terms
• Delivery challan or proof of delivery: Transporter receipt, courier tracking, or signed delivery acknowledgment
• Goods receipt note (GRN): If available, the buyer's internal document confirming receipt of goods
• Supply agreement: The written agreement specifying payment terms (if one exists)
• Payment follow-up communication: Emails, letters, or WhatsApp messages sent to the buyer requesting payment
• Bank statement: Showing that the payment has not been received in the supplier's bank account
• Interest calculation sheet: Computation of compound interest at 3x the RBI bank rate from the due date
• Udyam certificate: Copy of the supplier's valid Udyam Registration Certificate

The Samadhaan portal accepts documents in PDF format. Prepare all documents before starting the complaint filing process to avoid session timeouts on the portal. Suppliers can file complaints for individual invoices or consolidate multiple overdue invoices from the same buyer into a single complaint. The portal allows tracking the complaint status through the dashboard after login, showing stages from "Filed" to "Under Conciliation" to "Arbitration" to "Award Passed".

MEFC Dispute Resolution Process

The Micro and Small Enterprise Facilitation Council (MEFC) is established at the state and district level under Section 18 of the MSMED Act. Every state government is required to set up an MEFC to handle delayed payment disputes between MSME suppliers and their buyers.

MEFC Proceedings

1. Notice to buyer: MEFC sends a formal notice to the buyer within 15 to 30 days of receiving the complaint from the Samadhaan portal
2. Conciliation attempt: MEFC calls both parties for a conciliation hearing. If the buyer agrees to pay the outstanding amount plus interest, the matter is settled
3. Arbitration: If conciliation fails, MEFC acts as an arbitrator under Section 18(3) of the MSMED Act and the Arbitration and Conciliation Act, 1996
4. Award: MEFC must dispose of the case within 90 days from the date of reference. The award is legally binding
5. Enforcement: The MEFC award is enforceable as a decree of court. Non-compliance allows the supplier to initiate execution proceedings

Buyer's Right to Appeal

A buyer can challenge the MEFC award by filing an appeal under Section 19 of the MSMED Act. However, the buyer must deposit 75% of the awarded amount with the court before the appeal is entertained. This 75% pre-deposit requirement is a strong safeguard for MSME suppliers and discourages frivolous appeals. The appeal must be filed within 45 days of the MEFC award.

Practical Considerations for MEFC Proceedings

MEFC proceedings involve several practical aspects that both buyers and MSME suppliers should understand before entering the process. The MEFC jurisdiction is determined by the location of the buyer's registered office or principal place of business, not the supplier's location. If a Bangalore-based MSME supplier files a complaint against a Mumbai-based buyer, the case goes to the Maharashtra MEFC. Both parties can appoint legal counsel to represent them during conciliation and arbitration hearings, though many smaller disputes are handled directly by the business owners.

The 90-day disposal timeline is a statutory mandate, but in practice, many MEFCs take longer due to adjournments requested by either party, backlogs at busy urban MEFCs, and complexity of multi-invoice disputes. Suppliers should file complaints promptly after the 45-day deadline expires rather than waiting months, as delays reduce the urgency for resolution. Buyers should treat MEFC notices seriously and attend hearings with complete payment records, as ex-parte awards (passed in the buyer's absence) are common and harder to challenge.

The MEFC award typically includes the principal outstanding amount, compound interest at 19.50% per annum from the due date, and in some cases, a portion of the supplier's legal costs. The award does not include damages for loss of business or consequential losses. Once the award is passed, the supplier can execute it through the District Court in the same manner as an arbitral decree, including attachment and sale of the buyer's assets if necessary.

Penalties and Consequences of Non-Compliance

Non-compliance with the MSME 45-day payment rule triggers multiple consequences across different regulatory frameworks. Buyers face financial, tax, and reputational penalties simultaneously.

Disclosure Requirements in Financial Statements

Schedule III to the Companies Act, 2013 requires every company to disclose the following MSME-related information in the notes to financial statements:

1. Principal amount and interest due to Micro and Small enterprises as at the balance sheet date
2. Amount of interest paid by the buyer along with the principal amount paid beyond the appointed day during the year
3. Amount of interest due and payable for the period of delay (where the principal has been paid but interest has not been paid)
4. Amount of interest accrued and remaining unpaid at the end of the accounting year
5. Amount of further interest remaining due and payable in the succeeding years, until the interest due is actually paid

These disclosures apply specifically to Micro and Small enterprises (not Medium enterprises). The auditor verifies these disclosures against the company's MSME supplier register and payment records. Any misstatement or omission can result in audit qualifications that affect the company's creditworthiness and investor confidence.

To prepare accurate disclosures, maintain separate ledger tracking for MSME supplier payments. Your accounting system should generate a report showing the principal and interest components for each MSME supplier, categorized by payment status (paid within deadline, paid with delay, outstanding). Share this report with your statutory auditor during the annual audit for verification.

Common MSME Payment Compliance Issues

Based on our work with companies across industries, these are the most frequent compliance failures and how to address them.

Issue 1: Not Verifying Supplier MSME Status

Many companies process all vendor payments through the same workflow without checking whether the supplier is a registered MSME. This leads to missed compliance on the MSMED Act timeline and unexpected Section 43B(h) disallowances during tax assessment. Solution: add a mandatory "Udyam Registration Number" field to your vendor onboarding form and verify it on the Udyam portal before processing the first purchase order.

Issue 2: Using Invoice Date Instead of Acceptance Date

The 45-day clock starts from the date of acceptance (or deemed acceptance), not the invoice date. Many accounting systems default to invoice date for payment tracking. If the supplier invoices on 1 March but goods are accepted on 10 March, the payment deadline is 24 April (45 days from 10 March), not 15 April (45 days from 1 March). Configure your system to capture and use the acceptance date.

Issue 3: Payment Terms Exceeding 45 Days

Companies with standard Net 60 or Net 90 payment terms often apply these terms to MSME suppliers without realizing the MSMED Act caps the timeline at 45 days. The contractual term beyond 45 days is void. Solution: create a separate payment term code (e.g., "MSME-45") in your ERP system and apply it to all MSME vendor accounts.

Issue 4: Ignoring Deemed Acceptance

If the buyer does not formally accept or reject goods within 15 days of delivery, deemed acceptance applies. Companies that delay quality inspection beyond 15 days may not realize the 45-day payment clock has already started. Solution: implement a quality inspection SLA of 7 to 10 days for MSME supplier deliveries, with automatic deemed acceptance alerts at day 14.

Issue 5: Year-End MSME Payment Scramble

Companies often realize MSME payment issues only during March-end tax planning when their CA highlights potential Section 43B(h) disallowances. By then, the interest liability has accumulated and the tax impact is locked in. Solution: run a monthly MSME payment compliance report and clear all overdue MSME payments within the first week of each month.

GST and MSME Payment Compliance Interaction

The MSME 45-day payment rule operates independently of GST compliance, but the two systems interact in specific areas that buyers must understand.

Input Tax Credit (ITC) and MSME Payments: Under Section 16(2) of the CGST Act, a buyer can claim ITC only if the supplier has filed their GST return and the tax has been deposited. Delayed MSME payments do not directly affect ITC eligibility, but they can strain the supplier relationship, leading the supplier to delay GST filing, which indirectly blocks the buyer's ITC claim.

GST Invoice Matching: The MSME supplier's GSTR-1 and the buyer's GSTR-2B must match for ITC purposes. If a payment dispute leads to the supplier not recording the invoice in their GSTR-1, the buyer loses the ITC. This creates an additional financial incentive for timely MSME payments beyond the MSMED Act requirements.

E-invoicing and Acceptance Date: For companies generating e-invoices under GST, the e-invoice date is often used as the reference date in accounting systems. However, the MSMED Act acceptance date may differ from the e-invoice date. Always track the actual goods/services acceptance date separately from the e-invoice generation date for MSME compliance purposes.

TDS Deduction on MSME Payments: When a buyer deducts TDS on payments to MSME suppliers (for example, under Section 194C for contractor payments or Section 194J for professional fees), the gross invoice amount is the basis for the 45-day payment calculation, not the net-of-TDS amount. The TDS portion deposited with the government within the challan deadline is considered part of the payment. However, the remaining net amount must reach the MSME supplier's bank account within the 45-day window. If TDS is deducted but the net payment is delayed beyond 45 days, the interest under Section 16 applies to the net outstanding amount. Buyers must coordinate their TDS compliance calendar with the MSME payment timeline to avoid dual non-compliance on both TDS deposit deadlines and MSME payment deadlines.

GST Credit Notes and MSME Payments: If the buyer issues a credit note (for quality rejections, quantity differences, or pricing adjustments) against an MSME supplier's invoice, the credit note reduces the net payable amount. The 45-day payment timeline applies to the adjusted net amount after the credit note. However, the credit note must be issued within the timeframe specified in the supply agreement or within a reasonable period. Buyers cannot use credit notes issued after the 45-day deadline as a strategy to reduce the outstanding amount retroactively. The MEFC considers the timeline of credit note issuance when adjudicating disputes, and credit notes issued after the payment due date may not be accepted as valid reductions in the outstanding amount.

Udyam Registration and Its Role in the 45-Day Rule

The entire MSME 45-day payment protection framework is built on Udyam registration. Without a valid Udyam Registration Number (URN), a supplier cannot claim any protection under the MSMED Act, and the buyer has no MSME payment compliance obligation toward that supplier.

What Buyers Must Verify

• Valid URN: Verify the supplier's Udyam Registration Number on udyamregistration.gov.in. The portal confirms registration status without requiring the supplier's OTP
• MSME Classification: Check whether the supplier is classified as Micro, Small, or Medium. While the 45-day rule applies to all three, financial statement disclosures under Schedule III apply only to Micro and Small enterprises
• Registration Date: The 45-day obligation applies to transactions that occur while the supplier holds valid Udyam registration. If the supplier registered after the transaction date, the MSMED Act protections may not apply to pre-registration invoices

What MSME Suppliers Must Do

MSME suppliers must register on the Udyam portal to activate their payment protection rights. Registration is free, permanent, and takes 15 to 30 minutes. Suppliers should share their Udyam Registration Number with all buyers and include it on every invoice. This puts buyers on notice of their MSME status and the applicable payment timeline.

Suppliers who are not yet registered on Udyam should complete their MSME registration immediately. Without Udyam registration, they cannot file complaints on the Samadhaan portal, trigger Section 43B(h) consequences for buyers, or claim interest under Section 16 of the MSMED Act.

Section 405 of the Income Tax Act, 2025

The Government of India introduced the new Income Tax Act, 2025, which is expected to replace the Income Tax Act, 1961. Section 405 of the proposed legislation carries forward the provisions of existing Section 43B(h), maintaining the actual-payment-basis requirement for deductions on MSME supplier payments.

Key provisions expected under Section 405:

• Payments to MSME suppliers (as defined under the MSMED Act) are deductible only in the year of actual payment, consistent with Section 43B(h)
• The 45-day payment timeline under Section 15 of the MSMED Act remains the reference period for determining timely payment
• The disallowance mechanism for payments exceeding the statutory timeline continues unchanged
• The provision applies to all business entities computing income under the head "Profits and Gains of Business or Profession"

Companies and tax professionals should not expect any relaxation of MSME payment compliance requirements under the new tax legislation. The transition from Section 43B(h) to Section 405 is a re-numbering exercise, not a policy change. All existing compliance systems, payment tracking processes, and Form MSME-1 filing procedures remain relevant under the new Act.

Practical Checklist for Buyers

Use this checklist to audit your current MSME payment compliance status and identify gaps.

Quarterly Actions

• Update the MSME supplier master register by verifying Udyam numbers on the portal
• Review all active supply agreements with MSME vendors for payment terms exceeding 45 days
• Generate an aged payable report filtered by MSME suppliers
• Calculate interest liability on any payments that crossed the 45-day deadline
• Reconcile MSME payment data with Form MSME-1 reporting requirements

Annual Actions

• Coordinate with the statutory auditor for MSME disclosure preparation in financial statements
• Compute Section 43B(h) / Section 405 disallowance amounts before ITR filing
• File both half-yearly Form MSME-1 returns on the MCA portal within deadlines
• Train procurement and accounts payable teams on MSMED Act requirements
• Review ERP payment term configurations for MSME vendor accounts

Impact on Different Business Structures

While the MSME 45-day payment rule applies uniformly to all buyers, the compliance mechanism varies based on the buyer's business structure.

Private Limited Companies

Companies face the full range of compliance requirements: MSMED Act payment timeline, Section 43B(h) disallowance, Form MSME-1 filing on MCA portal, Schedule III financial statement disclosures, and auditor reporting. Directors can face personal penalties for Form MSME-1 non-filing. Companies should integrate MSME payment compliance into their existing annual compliance calendar.

Limited Liability Partnerships (LLPs)

LLPs are subject to the MSMED Act payment timeline and Section 43B(h) income tax implications. However, LLPs are not required to file Form MSME-1 (which is a Companies Act requirement). LLPs must still disclose MSME outstanding dues in their Statement of Accounts and Solvency. Designated partners should ensure MSME payment tracking is part of LLP compliance processes.

Partnership Firms and Proprietorships

These entities face MSMED Act payment obligations and Section 43B(h) disallowance but have fewer formal filing requirements. No Form MSME-1 or Schedule III disclosure applies. However, the income tax impact of Section 43B(h) is identical - delayed MSME payments are disallowed as business expenses. The firm's or proprietor's ITR must accurately reflect MSME payment compliance.

Industry-Specific MSME Payment Challenges

Different industries face distinct challenges in complying with the MSME 45-day payment rule. Understanding the specific risks in your sector helps you build targeted compliance systems.

Manufacturing and Engineering

Manufacturing companies that source raw materials, components, and sub-assemblies from MSME vendors face the highest volume of MSME transactions. The primary challenge is quality inspection timelines: if incoming quality checks take 10 to 15 days, the remaining window for payment processing shrinks to 30 to 35 days. Large manufacturers with batch procurement processes may receive 500+ MSME invoices per month, making manual tracking impractical. Solution: automate acceptance recording through your warehouse management system (WMS) and link it directly to your ERP's accounts payable module. Set the quality inspection SLA at 7 days for MSME supplier deliveries, and configure automatic deemed acceptance at day 14 if no inspection report is filed.

IT and Professional Services

IT companies and professional service firms engage MSME vendors for staffing, subcontracting, software licences, and facility management. The challenge here is milestone-based billing: if a contract specifies payment upon milestone completion, the acceptance date is the date the milestone deliverable is approved, not the date it is submitted. Project managers must formally record acceptance dates for each milestone in the project management system, and this date must flow into the accounting system for MSME payment tracking. Companies running agile projects with continuous delivery models should define specific acceptance checkpoints for MSME vendor billing.

Construction and Infrastructure

Construction companies work with hundreds of MSME suppliers and subcontractors for materials (cement, steel, electrical fittings, plumbing) and labour subcontracting. Running Account (RA) bills are common in this sector, where partial payments are made against ongoing work. Each RA bill constitutes a separate acceptance event, and the 45-day clock starts independently for each bill. Construction companies must track acceptance dates at the RA bill level, not at the contract level. Retention amounts withheld from MSME subcontractors also fall under the 45-day rule once the retention period expires and the final bill is approved.

Retail and FMCG

Retail chains and FMCG distributors purchase from MSME manufacturers and packagers. The challenge is high-frequency, low-value transactions with large numbers of MSME suppliers. These businesses often have centralized procurement but decentralized goods receipt across multiple warehouses and stores. Each delivery at each location generates a separate acceptance event. Solution: centralize MSME payment processing at the head office with automated data feeds from all warehouse locations. Set a weekly payment cycle for MSME vendors rather than the standard monthly cycle used for larger suppliers.

Related Resources

• Private Limited Company Compliance - annual compliance including MSME payment disclosure and Form MSME-1 filing
• LLP Annual Compliance - compliance requirements for LLPs including MSME payment obligations
• MSME Registration - register your business on the Udyam portal for MSME supplier protection
• GST Return Filing - timely GST filing ensures your MSME suppliers can claim ITC on your payments
• Income Tax Return Filing - accurate ITR filing with Section 43B(h) and Section 405 compliance
• ROC Annual Filing - Form MSME-1 filing and financial statement disclosure compliance
• Udyam Registration - free MSME registration for suppliers seeking 45-day payment protection

Summary

The MSME 45-day payment rule under Section 15 of the MSMED Act, 2006 is now one of the most impactful compliance requirements for Indian businesses. With Section 43B(h) of the Income Tax Act (and the proposed Section 405 of the new IT Act 2025) linking MSME payment delays directly to income tax disallowance, the cost of non-compliance extends far beyond the 19.50% compound interest under Section 16. Companies must verify supplier Udyam status, track acceptance dates, pay within 15 or 45 days, file Form MSME-1 half-yearly, and ensure their income tax returns reflect accurate Section 43B(h) computations. MSME suppliers must register on the Udyam portal and use the Samadhaan portal and MEFC for dispute resolution. Building a permanent compliance system is not optional - it is a financial necessity.