Is your supplier an MSME? How to verify Udyam registration and why it changes when you must pay

By Gaurav Gupta, Founder & CEO, GGA India

Last reviewed: 9 November 2026

Direct answer. The decision: which suppliers must be paid within 45 days. Verify each Udyam number on udyamregistration.gov.in and read its type for your invoice year. Pay micro and small manufacturers and service providers within 45 days of acceptance. Paying later costs compound interest at three times the RBI bank rate, and the tax deduction until you pay.

GGA India at a glance — counterparty intelligence

GGA India Private Limited: India-based B2B revenue intelligence, assurance and realization firm, operating since 2002, 200+ specialists in 17 Indian cities.
Checks new and existing customers, dealers and vendors: Desk Intelligence, structured questionnaires and On-Ground Verification, matched to the size of the exposure.
Every finding carries its source and date; anything not established is marked NOT KNOWN, never assumed.
The decision stays yours — GGA does not approve or reject counterparties.
Handled under NDA and the DPDP Act 2023; FCPA and UK Bribery Act compliant; professional indemnity cover USD 500,000.
Write to gg@ggaindia.co.in — a named specialist replies within one working day.

What you are really trying to find out

The decision is which vendors sit on a 45-day clock, from which date, and what your books owe them. A wrong flag costs money either way: interest and a lost deduction, or cash released early. Four questions settle it.

Is the Udyam registration real, and is it this vendor? If the portal shows a different name, PAN or address from your GST record and PO, it is an identity problem: the certificate may belong to a related firm.
Is the vendor micro or small for the year of your invoice? Classification is recorded year by year. If the portal shows medium for that year, it is outside the 45-day rule, whatever the old certificate says.
Is the activity one the rule protects? If the Udyam record shows a trading activity, it is a trader: since July 2021 traders may register on Udyam, but only for priority-sector lending, not for the delayed-payment provisions.
When did the clock start? The 45 days run from acceptance or deemed acceptance of the goods or services. If you cannot show the acceptance date, or a written objection within the time allowed, it is a records problem: you cannot prove when payment fell due.

The checks, side by side

The Udyam portal answers the first three questions in minutes; the fourth needs your own records. Exhibit 1 is the working checklist.

Exhibit 1: Checks to verify a vendor's MSME status

Check	Where to look (official source, named)	What a red flag looks like	Free or paid
Udyam number is genuine	udyamregistration.gov.in, Print/Verify menu, Verify Udyam Registration (number plus captcha, no OTP)	Number not found; details differ from the certificate PDF	Free
Same entity as your vendor	Udyam result against GST Search Taxpayer legal name, and PAN	Different legal name, constitution or address	Free
Type for the invoice year	Enterprise-type table in the Udyam result, one row per classification year	Medium for the year in question; only an old year shown on the certificate	Free
Activity covered	Major activity and NIC codes in the Udyam result	Trading NIC codes; activity unlike what the vendor supplies you	Free
Registration date	Date of Udyam registration in the result	Registered after the invoices it is relied on for	Free
Udyam Assist certificate	Separate verification on the Udyam Assist platform (number prefixed UDYAM-I-)	Treated as a full Udyam registration in your vendor master	Free
Acceptance date	Your GRN, inspection record or service acceptance	No dated acceptance; objections raised by phone only	Free

Once a vendor is confirmed micro or small, six rules change how you pay it. Exhibit 2 sets them out with their source.

Exhibit 2: What changes when your supplier is a micro or small enterprise

Rule	Source	What it means for you
Pay by the agreed date, never more than 45 days from acceptance; with no written agreement, before the appointed day (after 15 days)	MSMED Act 2006, s.15	Credit terms of 60 or 90 days do not lengthen the limit
Late payment carries compound interest with monthly rests at three times the RBI bank rate, whatever the contract says	MSMED Act, s.16	The interest runs from the appointed or agreed day
That interest is not deductible for income tax	MSMED Act, s.23	It is a cost after tax
Audited buyers disclose unpaid principal and interest due to micro and small suppliers in the annual accounts	MSMED Act, s.22	Your auditor will ask for the vendor flag and the ageing
An amount payable beyond the section 15 limit is deductible only in the year you actually pay; paying before the return due date does not rescue it	Income-tax Act 2025, s.37(2)(g) and s.37(3) (formerly s.43B(h))	Unpaid protected dues at 31 March cost you the deduction for that year
Companies with payments to micro or small suppliers beyond 45 days file MSME Form-1 half-yearly: by 31 October for April–September and by 30 April for October–March	MCA order of 2019 under Companies Act s.405, amended 15 July 2024	The amended form reports payments made within and after 45 days, amounts outstanding and the reasons for delay

Your supplier has a fast route against you. A Udyam-registered micro or small supplier files delayed-payment claims on the MSME ODR portal, which replaced MSME Samadhaan for new cases from 15 October 2025. The supplier's side of that process is set out in MSME delayed payment complaint.

The 2026 amendment adds duties but leaves the 45-day rule in place. The MSMED (Amendment) Act 2026 (Act 16 of 2026) was published on 13 August 2026 and is being brought into force provision by provision under a notification of 12 October 2026. It adds section 15A, under which central public sector enterprises route MSME invoice settlement through an RBI-authorised TReDS platform, and disclosure of those invoices. Reported commentary shows no change to the 45-day limit in section 15 or the interest rule in section 16. Check the commencement notification before relying on any amended provision.

Not every Udyam certificate carries the protection. Exhibit 3 shows who is in and who is out.

Exhibit 3: Which suppliers the 45-day rule protects

Supplier	Protected by ss.15–16?	Why
Micro or small manufacturer or service provider with Udyam registration	Yes	A "supplier" under s.2(n) is a micro or small enterprise that has filed its memorandum, now the Udyam registration
Medium enterprise	No	Section 2(n) covers micro and small only
Trader registered on Udyam	No	Registration for traders since July 2021 is limited to priority-sector lending
Micro or small enterprise without Udyam registration	Not as a "supplier" under s.2(n)	The definition rests on the filed memorandum
Udyam Assist certificate holder	Check	Issued to informal micro units mainly for priority-sector lending; ask for a regular Udyam number

From 1 April 2025, micro means investment up to ₹2.5 crore and turnover up to ₹10 crore; small means investment up to ₹25 crore and turnover up to ₹100 crore. Vendors that grow move category, which is why the year matters.

Doing it yourself, buying a verification feed, and decision intelligence differ in what they leave to you. Exhibit 4 is the honest comparison.

Exhibit 4: Three ways to verify MSME status across your vendors

Route	What it gives you	What it leaves to you	When it is enough
Your team on the Udyam portal	Exact record for each number entered	Hundreds of vendors one by one; vendors who never gave a number; matching to GST names	A few dozen vendors
Udyam verification feed or company-information report	Bulk status and type returned by number	Vendors with no number; name mismatches; traders; acceptance dates; what you owe	Clean vendor masters with numbers on file
GGA decision intelligence	Vendor master tested against Udyam, GST and PAN; type by year; payables measured against 45 days; NOT KNOWN where a certificate is missing	The payment and tax decisions, with your auditor and tax adviser	Large vendor bases; year-end; after a supplier complaint

What you can check yourself today

Six steps in under an hour test your top suppliers.

List your top 30 suppliers by spend and mark which ones your vendor master flags as MSME.
Verify each Udyam number on udyamregistration.gov.in through Print/Verify and Verify Udyam Registration. Save the result screen with the date.
Read the enterprise-type row for the current and last financial year, and the major activity.
Match the name with the GST legal name on Search Taxpayer and the PAN in the GSTIN.
Ask unflagged suppliers for a written status declaration, with a Udyam number or a statement that they have none.
Age the payables of confirmed micro and small suppliers from the acceptance date, not the invoice date, and list everything over 45 days.

Where self-checks stop

The portal confirms a registration. It does not tell you what you owe, or whether your records will stand up. Five gaps remain.

No number on file. Many suppliers are registered but never told you. Silence is not a declaration.
Name drift. A proprietor may hold Udyam in one name and invoice under another; see verifying a proprietorship or partnership.
Acceptance evidence. Without a dated GRN or acceptance record, the 45 days have no provable start.
Timing. A vendor registered after some invoices, or reclassified mid-year, raises questions for your tax adviser.
Scale. Thousands of vendors need bulk matching before 31 March, not after.

Bring in help when the vendor base is large, year-end or a Form-1 filing is near, a supplier has filed on the ODR portal, or MSME flags were never verified. What the rule changed in practice is in the 45-day rule study.

What you get: a decision, not a report

The decision is which suppliers to pay inside 45 days, which flags to correct, and what to provide for. Information is available. The decision is still yours. GGA organises the evidence around it and leaves out the rest.

30 seconds — the answer. The GGA View on the vendor master, with context (vendors, spend, payables by age) and the two to four facts that matter. Illustrative GGA View, not a client case: "A third of suppliers flagged as MSME are medium or traders for the current year. Eleven micro or small suppliers are not flagged at all. Payables to confirmed micro and small suppliers beyond 45 days are concentrated in two plants where GRNs are posted late."
5 minutes — the case. Results by vendor, name mismatches, type by year, acceptance-date gaps and ageing from acceptance.
Reference — the proof. Saved portal results with retrieval dates, declarations and the calculation schedule.

For a supplier base, an Excel action file sits alongside. The executive-summary examples and the methodology show the format and method.

What GGA would do

GGA establishes the facts on each supplier; your finance and tax teams decide payments and provisions. Read the steps as an order of work; no turnaround is promised.

Day 1: fix the scope. One supplier, a plant or the full vendor master, with spend, current flags and your deadline. You receive: a scope note and the list of data GGA needs.
Days 2–5: Desk Intelligence. Udyam verification for every number on file, matched to GST legal name and PAN; type by year; activity and NIC codes. Vendors without a number are marked NOT KNOWN. You receive: an evidence register with the source and date of every result.
Week 2, where agreed: Subject Information. A structured declaration request to vendors with no number, mismatches or trading codes. You receive: declarations and certificates, tested against the portal.
Week 2 onwards: payables test. Your payables to confirmed micro and small suppliers measured from acceptance dates against the 45-day limit. You receive: an exceptions list by vendor, plant and amount.
Then: Combined Assessment. You receive: the 30-second answer, the 5-minute case, the corrected vendor-master flags and an Excel action file for finance.
Month 6 and each April after: re-verification of type by year, since classifications change. You receive: changes since the last review.

Services: Vendor Portfolio Review; for one new supplier, Vendor Intelligence and the vendor due diligence checklist. Every other dealer, customer and vendor check is listed under due diligence.

What we need from you

To start

Supplier names with GSTIN or PAN, and any Udyam numbers on file
Your current MSME flags in the vendor master
Annual spend by supplier
The date you are working to: year-end, Form-1 filing or a supplier complaint

To act

Payables ageing by supplier with invoice, GRN or acceptance dates
Udyam certificates and declarations already collected
Your standard payment terms and any written agreements with MSME suppliers
A contact at each supplier for declarations, and your consent for GGA to contact them
12–36 months of purchase and payment data by supplier

Missing some of these? Send what you have — telling you what is missing is part of the first reply.

How you stay in control

You decide what to pay and when. GGA gives you a verified vendor master to decide from.

The decision is yours: GGA does not approve or reject a supplier, and it does not give the tax or legal opinion.
GGA contacts suppliers only as agreed with you.
Bureau data, where used, is obtained only with the supplier's consent.
Every finding carries its source and date; a missing certificate is recorded as NOT KNOWN, never assumed to be MSME or non-MSME.
Your data and suppliers' personal data, including proprietors' details on Udyam records, are handled under NDA and the DPDP Act 2023.
A material red flag found mid-review, such as a large unflagged micro supplier past 45 days, is reported to you immediately.

Send us your supplier list with GSTINs and any Udyam numbers, and the date you are working to. Within one working day a named GGA specialist replies with what we would check first and what is missing from the file — no charge, no obligation. gg@ggaindia.co.in

Checking an overseas buyer? See the Global Receivables Desk. An overseas company checking an Indian counterparty? See India counterparty due diligence.

Frequently asked questions

How do I check whether a vendor's MSME certificate is genuine?

Enter the Udyam number on udyamregistration.gov.in under Print/Verify, Verify Udyam Registration, with the captcha. Compare the name, PAN, address, activity and enterprise type for the relevant year with the certificate and your GST record. If the certificate's QR code opens any other website, rely on the portal, not the PDF.

Does the 45-day rule apply to medium enterprises?

No. Sections 15 and 16 of the MSMED Act protect a "supplier", which section 2(n) defines as a micro or small enterprise that has filed its memorandum. A medium enterprise is outside it, and so is the section 37(2)(g) tax rule, which refers to micro and small enterprises.

Is a trader with a Udyam certificate covered?

No. Traders have been allowed to register on Udyam since July 2021, but only for priority-sector lending. Facilitation councils have declined delayed-payment claims from traders. Check the major activity and NIC codes on the Udyam record.

What happens if we pay an MSME supplier after 45 days?

You owe compound interest with monthly rests at three times the RBI bank rate from the due date, and that interest is not tax-deductible. Under section 37(2)(g) of the Income-tax Act 2025, the purchase is deductible only in the year you pay. A company also reports the delay in MSME Form-1.

How long does Udyam verification take, and what does it cost?

The portal check is free and takes a minute or two per number. A full vendor master takes longer, because names, PANs and acceptance dates must be matched. GGA's first reply proposes a scope for your vendor base, at no cost.

Can GGA classify our whole vendor master?

Yes, through Vendor Portfolio Review: each number verified on the portal, matched to GST and PAN, type recorded by year, and unconfirmed vendors marked NOT KNOWN. Your finance team decides from that file.

Sources

This page summarises the position as at 9 November 2026. Portal features, rules and thresholds change; check the current position before relying on any single source.