MSME classification is the official sizing of a business as micro, small or medium using two tests read together: investment in plant, machinery or equipment, and annual turnover. Under the current limits, micro means investment up to ₹2.5 crore and turnover up to ₹10 crore; small, ₹25 crore and ₹100 crore; medium, ₹125 crore and ₹500 crore. Export turnover is excluded from the turnover count.
The criteria are composite: you must stay within both limits of a category, and crossing either one pushes you into the next size up. The numbers are not self-declared — the Udyam portal reads investment and turnover from your ITR and GST filings, so your books drive your category. Export turnover is deliberately excluded, so selling more abroad never costs a business its MSME status.
Classification matters commercially. Micro and small enterprises get the strongest protections — the 45-day payment rule under section 43B(h) covers only micro and small suppliers, not medium ones — plus CGTMSE guarantee cover and delayed-payment interest under the MSMED Act. Check your certificate after each filing season, and if you sit near a boundary, know which side of it next year's numbers will land you on.
A common mistake is assuming the old, much lower limits still apply. The current thresholds (₹2.5/25/125 crore investment, ₹10/100/500 crore turnover) are dramatically wider, and many firms that outgrew MSME status years ago are back inside it with benefits they aren't claiming. Re-check eligibility before dismissing MSME schemes as too small for you.
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Reviewed to the law in force in FY 2026-27. General information, not advice — confirm the position for your facts before acting.