MSME 45-Day Payment Rule Compliance
Complete guide to payment tracking, Udyam verification, and how delayed MSME payments become non-deductible
Section 43B(h) mandates 45-day payment to MSME vendors (from FY 2023-24). Delayed payments cannot be claimed as business expenses. Example: ₹10L paid on day 50 = ₹10L expense disallowed = ₹3L extra tax at the 30% slab. Verify vendor MSME status via the Udyam Portal, track payment deadlines, and prioritize MSME invoices.
From FY 2023-24 onwards, if you delay MSME payments beyond 45 days, you CANNOT claim that expense in your tax return. Pay ₹10L to an MSME vendor on day 50? ₹10L expense disallowed = ₹3L extra tax (if 30% slab).
What is Section 43B(h)?
Introduced in Finance Act 2023, Section 43B(h) mandates that businesses must pay MSME vendors within 45 days of the invoice date to claim the expense as a tax deduction.
Key Points
- Effective: FY 2023-24 (AY 2024-25) onwards
- Timeline: 45 days from invoice date (or agreed date if specified in writing)
- Penalty: Expense disallowed if not paid within 45 days
- Applies to: ALL businesses (corporates, partnerships, proprietorships)
- Only for: Payments to MSME-registered vendors
Who is an MSME?
| Category | Investment Limit | Turnover Limit |
|---|---|---|
| Micro Enterprise | ≤ ₹1 crore | ≤ ₹5 crore |
| Small Enterprise | ≤ ₹10 crore | ≤ ₹50 crore |
| Medium Enterprise | ≤ ₹50 crore | ≤ ₹250 crore |
MSME status verified via the Udyam Registration Portal (udyamregistration.gov.in).
The 45-day rule isn't just about cash flow — it's a tax deduction issue. Late MSME payments result in immediate tax disallowance, not just interest. Your priority should be: (1) identify all MSME vendors, (2) set up payment tracking alerts, (3) prioritize MSME invoices in accounts payable. Related: GST Invoice Management System.
How the Rule Works: Example
scenario · manufacturing_company
Transaction details
- Invoice from MSME vendor: March 1, 2024 for ₹10,00,000
- Payment due: April 15, 2024 (45 days)
- Actual payment: May 5, 2024 (65 days — LATE)
- ₹10L expense claimed in FY 2023-24
- But payment made after 45 days
- Expense disallowed: ₹10,00,000
- Extra tax @ 30%: ₹3,00,000
- Pay by April 15, 2024 → expense allowed in FY 2023-24
- OR pay in FY 2024-25 → claim expense in the FY 2024-25 ITR
How to Verify MSME Status
12-digit unique number starting with "UDYAM".
- —Visit udyamregistration.gov.in
- —Click "Verify Udyam Registration Number"
- —Enter URN and captcha
- —Download certificate (PDF)
Store the Udyam certificate with vendor master data. Update the accounting system with an MSME flag.
Documentation Requirements
Essential documents to maintain
- ✓
Udyam Registration Certificate
From each MSME vendor at onboarding
- ✓
Invoice with Clear Payment Terms
Invoice date, payment due date (if different from 45 days)
- ✓
Payment Proof
Bank statement, RTGS/NEFT confirmation, cheque details
- ✓
Aging Report
Monthly report showing days outstanding for each MSME invoice
Accounting System Modifications Needed
Special Cases & Exceptions
If you and the MSME agree on 60 days (in writing), 60 days applies instead of 45.
Requirement: written agreement signed by both parties BEFORE the invoice date.
No clear guidance. Conservative approach: pay within 45 days, raise the dispute separately.
Section 43B(h) doesn't apply. Normal payment terms acceptable. But verify: if eligible, the vendor should register.
Impact on Different Business Types
Large Corporates
Highest impactSMEs
Moderate impactStartups
Service Industry
Lower impactCompliance Checklist
- Obtained Udyam certificates from all vendors
- Updated accounting system with MSME flags
- Set up auto-alerts for the 45-day deadline
- Trained the accounts payable team on the new rule
- Reviewed and renegotiated payment terms (if needed)
- Created a year-end report template for disallowed expenses
- Communicated with the CFO/Finance Head about tax implications
Conclusion
Section 43B(h) is a major shift for cash flow management. Businesses must prioritize MSME payments or face tax disallowance penalties that far exceed any working capital benefit from delayed payments. Verify every vendor's MSME status, update your systems, and make 45-day payments the default. The Income Tax Department won't accept "cash flow issues" as an excuse for non-compliance. Pay on time, claim deductions.
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