How do I check if a supplier is really an MSME?

A supplier tells you, "We are an MSME." Or your accounts team asks whether a vendor is one. The answer changes how you must treat that vendor's invoices. Before you rely on it, you need a way to check.

This article is about one thing: how to confirm that a supplier is a micro or small enterprise, and what proof to keep. It does not explain why the status matters for payment deadlines. For that, read our article on the Section 43B(h) 45-day MSME payment rule.

The short answer

• Ask the supplier for its Udyam Registration Certificate and Udyam Registration Number.
• Open the details on the Udyam portal (udyamregistration.gov.in) and match them with your own records: name, PAN, activity and category.
• Look at the category shown (micro, small or medium). Only micro and small enterprises count as a "supplier" under the Act.
• Save the proof in your vendor file with the date you checked.

A claim in an email, a letterhead or an invoice footer is not proof. The certificate and the portal record are the evidence to ask for.

What the law means by "MSME"

The Micro, Small and Medium Enterprises Development Act, 2006 (the MSMED Act) uses a few defined words. They matter when you check a supplier.

• Enterprise (section 2(e)): an industrial undertaking, business concern or other establishment engaged in making goods of a kind listed in the First Schedule to the Industries (Development and Regulation) Act, 1951, or engaged in providing or rendering any service.
• Micro, small and medium enterprise (sections 2(h), 2(m) and 2(g)): an enterprise classified as such under section 7.
• Classification (section 7): the Central Government classifies enterprises by notification. Section 7(9) lets it vary the investment criterion and also consider criteria in respect of employment or turnover.
• Supplier (section 2(n)): "a micro or small enterprise, which has filed a memorandum" with the authority referred to in section 8(1). The definition also includes the National Small Industries Corporation, the State or Union territory Small Industries Development Corporation, and companies, co-operative societies, trusts or bodies engaged in selling goods produced, and rendering services provided, by micro or small enterprises.

Two points follow from this wording.

First, a medium enterprise is outside the definition of "supplier" in section 2(n), which speaks only of a micro or small enterprise. Second, a micro or small enterprise that has not filed its memorandum is also outside it. Section 8(1) says a person who intends to establish a micro or small enterprise "may, at his discretion" file the memorandum. So many real small businesses are simply unregistered. For the purposes of the Act's "supplier" rules, an unregistered vendor is an ordinary vendor.

Today the "memorandum" is the Udyam Registration. The notification S.O. 2119(E) of 26 June 2020 was issued under sections 7 and 8 of the MSMED Act. It sets the classification criteria and the form and procedure for filing the memorandum, which it calls "Udyam Registration".

The size limits now in force

The investment figures printed in section 7(1) of the Act (as published in 2006) are the original ones. Do not use them. The working limits come from the notification.

S.O. 2119(E) classifies an enterprise on investment in plant and machinery or equipment and turnover. S.O. 1364(E), dated 21 March 2025, replaced the figures with effect from 1 April 2025. The classes now read:

The criteria apply together (paragraph 3(1), S.O. 2119(E)).

• If an enterprise crosses the ceiling for its present category in either investment or turnover, it moves to the next higher category.
• It is placed in a lower category only when it is below the ceilings of its present category on both investment and turnover (paragraph 3(2)).
• Exports of goods or services are excluded when turnover is counted (paragraph 5(1)).
• All units with GSTINs listed against the same PAN are treated as one enterprise, and their figures are added together (paragraph 3(3)).

As a practice point, the same-PAN rule means a certificate for one GST registration should be read against everything held under that PAN.

How a supplier gets Udyam status

Knowing the process tells you what the certificate does and does not prove.

• Registration is online on the Udyam portal, on self-declaration, with no requirement to upload documents, papers, certificates or proof (paragraph 2(1), S.O. 2119(E)).
• There is no fee (paragraph 6(2)).
• The enterprise is assigned a permanent Udyam Registration Number and an e-certificate, the Udyam Registration Certificate, is issued (paragraph 2(2) and (3)).
• Investment is linked to income-tax returns of previous years, and turnover information is linked to income-tax and GST data (paragraphs 4(1) and 5(2)). A new enterprise with no prior return can declare its investment, and that relaxation ends after 31 March of the financial year in which it files its first return (paragraph 4(2)).
• For a company, LLP, co-operative society, society or trust, the organisation or its authorised signatory gives its GSTIN and PAN along with its Aadhaar number (paragraph 6(5)).
• Whoever intentionally misrepresents or attempts to suppress the self-declared facts is liable to "such penalty as specified under section 27 of the Act" (paragraph 6(8)).

The Ministry's information page on Udyam adds that the certificate carries a dynamic QR code from which the portal page and details of the enterprise can be accessed.

So the certificate shows that the supplier declared itself in a class and that the portal issued the registration. It is strong evidence, but it is not an audit of the supplier's books.

Step by step: checking one supplier

The steps below are practice, not law, except where a paragraph is cited.

• Ask for the certificate and the number. Request both in writing when you onboard the vendor.
• Open the portal record. Use the QR code, or go to udyamregistration.gov.in and use the portal's current verification option. Do not rely only on a PDF the supplier sent, because a PDF can be edited. Match against the portal record.
• Match the name and PAN. The enterprise name and PAN on the record should be the same as on the invoice and the vendor master. A different PAN or an old trade name needs an explanation.
• Match the activity. A single Udyam Registration can list manufacturing, service or both (paragraph 6(7)). Check that the activity on the record fits what the supplier sells to you.
• Read the category. Micro or small: the supplier is within the Act's meaning of "supplier". Medium: it is not, unless it moved up within three years (paragraph 8(5)); then take advice.
• Reject old certificates. Registrations under EM Part-II or UAM were the earlier system. S.O. 2119(E) required those enterprises to register again on the Udyam portal (paragraph 7(1)) and said registrations made before 30 June 2020 continue to be valid only for a limited period, which ended on 30 June 2022 (paragraph 7(3), as amended by S.O. 2134(E)). An EM-II or UAM certificate alone is therefore not proof of present status.
• Record it. Put these in the vendor master: Udyam number, category, date of registration shown, date you checked, and a saved copy of the portal page.

Why the check needs repeating

Udyam status is not frozen.

• The enterprise must update its information on the portal, including the income-tax return and GST return details for the previous financial year (paragraph 8(1)). Failure to update within the period specified on the portal makes it liable to suspension of its status (paragraph 8(2)).
• The classification is updated from the information furnished or gathered from government sources, including income-tax and GST returns (paragraph 8(3)).
• On an upward change, the enterprise continues to avail of all non-tax benefits of its earlier category for three years from the date of the change (paragraph 8(5), as substituted by S.O. 4926(E) of 18 October 2022). The paragraph speaks of non-tax benefits. It does not say how this affects section 15 of the MSMED Act or section 43B(h), which is a tax provision, so take advice if a supplier has recently moved up.
• On a move down, it continues in its present category until the end of the financial year and gets the changed status from 1 April of the following financial year (paragraph 8(6)).

So a supplier that was small last year may now be medium, or the other way round. As practice, re-check active vendors at least once a year, and again before you close your books.

What not to do

• Do not accept "MSME: yes" on a form as proof. A yes/no field in the vendor master hides the category. Record micro, small or medium.
• Do not accept an unverified PDF or a screenshot.
• Do not assume a small vendor is registered. Section 8(1) leaves registration to the person's discretion, and section 2(n) requires a filed memorandum.
• Do not assume "registered" means "micro or small". Medium enterprises can hold Udyam numbers too (section 8(1)(b) and (c) refer to medium enterprises).
• Do not guess when the paperwork is thin. If the record looks wrong, ask the supplier to correct it. The notification also provides a route for discrepancies and complaints: the General Manager of the District Industries Centre undertakes an enquiry for verification of the details of the Udyam Registration (paragraph 9(4)).

Where this check feeds in

Once you know which suppliers are micro or small, two rules become relevant on your side.

• Section 15, MSMED Act: the buyer pays on or before the date agreed in writing or, if there is no agreement, before the "appointed day". An agreed period can never exceed forty-five days from the day of acceptance or deemed acceptance.
• Section 43B(h), Income-tax Act, 1961, which corresponds to section 37 of the Income-tax Act, 2025 (tax year 2026-27 onwards) in the official mapping.

The details and dates are in our article on the Section 43B(h) 45-day MSME payment rule. This article only gets you to the right list of suppliers.

What to do now

• Next step: list your active vendors and ask each one for its Udyam certificate and number (sections 2(n) and 8(1), MSMED Act, 2006).
• Check: match each portal record to the vendor's name and PAN, and note the category (paragraphs 1 and 3, S.O. 2119(E), as amended by S.O. 1364(E)).
• Deadline: no single filing date applies to this check. Do it before onboarding a vendor and again before year-end, because the class can change when the supplier's records are updated (paragraph 8, S.O. 2119(E)).
• Consequence of skipping it: you may treat a micro or small supplier as ordinary, or an ordinary vendor as covered, and get your payment timing wrong (section 15, MSMED Act, 2006).

Have a CA review your facts before you act or file.

Frequently asked questions

Is Udyam registration compulsory for a small supplier?
Under section 8(1) of the MSMED Act, a person establishing a micro or small enterprise files the memorandum "at his discretion". If the enterprise has not filed one, it is outside the definition of "supplier" in section 2(n).

Can I rely on the certificate alone?
It is the main evidence, but check the portal record as well. Registration is on self-declaration, with investment and turnover linked to tax data (paragraphs 2(1), 4(1) and 5(2), S.O. 2119(E)).

What if the supplier's class changed during the year?
The class is updated from return data (paragraph 8(3)). A move up keeps the earlier category's non-tax benefits for three years (paragraph 8(5), as substituted by S.O. 4926(E)). A move down takes effect from 1 April of the next financial year (paragraph 8(6)). Record the date of your check.

Does a medium enterprise count?
Not as a "supplier": section 2(n) speaks of a micro or small enterprise. A recent move up needs advice (paragraph 8(5)). The medium class is defined separately in section 2(g).

The supplier has an old UAM or EM-II certificate. Is that enough?
No. Those enterprises were required to register again on the Udyam portal (paragraph 7(1)), and the old registrations were valid only up to 30 June 2022 (paragraph 7(3), as amended by S.O. 2134(E)). Ask for the Udyam number.

What if I find a false declaration?
Paragraph 6(8) of S.O. 2119(E) makes a person who intentionally misrepresents or suppresses the self-declared facts liable to the penalty specified under section 27 of the Act. Speak to your CA before you raise it with the supplier.

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See Also

• Finance Act 2026: changes that touch a private company's directors
• Do we still collect 0.1% TCS on sales above ₹50 lakh?
• Section 118: minutes — the 30-day rule and what can be left out