Micro, Small or Medium under the Udyam composite criteria — revised 1 April 2025 to ₹2.5/25/125 crore investment and ₹10/100/500 crore turnover — with the upward-only reclassification rule explained.
This is the general MSME classification under the MSMED Act — it decides who can register on Udyam and what category they fall in. The Sec 43B(h) payment-disallowance rule for buyers of goods/services from Micro and Small suppliers is a separate, narrower test: Medium enterprises are outside its scope entirely, and it applies only when the supplier is Udyam-registered.
The MSME Development Act 2006, as revised by government notification effective 1 April 2025, classifies every enterprise — manufacturing or services, no distinction since the 1 July 2020 unification — using a composite test of two figures: investment in plant and machinery/equipment, and annual turnover. Micro: investment up to ₹2.5 crore AND turnover up to ₹10 crore. Small: up to ₹25 crore AND ₹100 crore. Medium: up to ₹125 crore AND ₹500 crore. Beyond the Medium ceiling, the enterprise is not an MSME.
Both limbs must be satisfied to hold a category — if EITHER investment or turnover crosses the ceiling for the current category, the enterprise moves to the next higher category. It only moves back DOWN to a lower category when BOTH investment and turnover fall below that lower category’s ceilings — a single figure improving is not enough on its own.
Investment in plant and machinery/equipment excludes land, buildings, furniture and fittings, and is computed from the enterprise’s own previous-year Income Tax Return (self-declared for a new enterprise with no prior ITR, until the 31 March following its first filed return). Turnover excludes export turnover and is verified against GST returns. Registration is on the Udyam portal — a real-time, self-declared PAN+GSTIN-linked process cross-checked against Income Tax and GST data, with no documents to upload.
A components manufacturer has ₹18 crore invested in plant and machinery and reports turnover of ₹95 crore in FY 2025-26 (Small: within ₹25 Cr / ₹100 Cr). In FY 2026-27, a large export order takes turnover to ₹140 crore, while plant investment stays at ₹18 crore.