Composition levy allows eligible small taxpayers to pay a prescribed rate instead of GST, barring input tax credit. Composition levy permits a registered person below a prescribed aggregate turnover threshold to pay tax at a prescribed rate instead of regular GST, with differentiated maximum rates and a possible raised threshold by notification. Eligibility excludes providers of general taxable services, non-leviable supplies, inter-State outward supplies, supplies via certain e-commerce operators, and notified manufacturers; persons sharing a PAN must opt collectively. The option lapses on exceeding turnover, composition taxpayers cannot collect tax from recipients or claim input tax credit, and wrongful availing attracts tax assessment and penalty provisions.