GST Composition Scheme: Rules, Rates & Who Should Opt In (2026)

For a small shop, eatery or workshop, regular GST can feel like a lot of paperwork for a modest turnover. The composition scheme exists precisely for these businesses: it swaps invoice-level GST and monthly returns for a small flat tax on turnover and a handful of filings a year.

This guide covers who can opt in, the turnover limits, the flat rates, the returns you file, and the real trade-offs against the regular scheme, so you can decide whether composition genuinely suits your business. Because thresholds and rates are revised from time to time, confirm the current figures on the GST portal before you elect.

What the composition scheme actually is

Under composition you pay GST as a small percentage of your total turnover rather than charging it on each sale. You do not show GST separately on your bills, you cannot collect it from customers, and you cannot claim input tax credit on what you buy. In return you file only a simple quarterly payment statement and an annual return, instead of the regular monthly cycle. It is a deliberate trade: less tax admin and often less tax, in exchange for giving up input credit and the ability to bill GST to business customers.

Who can opt in, and who cannot

The scheme is meant for small businesses under an annual turnover ceiling, with a lower ceiling for service providers than for goods. Some businesses are excluded regardless of size. You generally cannot use composition if you:

• make inter-state outward supplies (selling goods to other states);
• supply through an e-commerce operator that collects tax at source;
• make supplies that are not taxable under GST; or
• fall in a category the law specifically keeps out of the scheme.

If you sell mostly within your own state to walk-in customers, you are the typical composition candidate. If you sell across states or online through marketplaces, the regular scheme usually applies.

The flat rates

Composition tax is a low flat percentage of turnover, and the exact rate depends on your business type: a low rate for traders and manufacturers, a somewhat higher one for restaurants not serving alcohol, and a separate rate for eligible small service providers. Because you cannot add this to your prices, it comes out of your margin, so factor it into your pricing rather than treating it as recoverable.

The returns you file

The lighter compliance is the main draw. A composition dealer files:

• a simple quarterly statement-cum-challan (CMP-08) to compute and pay the tax; and
• an annual return summarising the year.

Compare that with the regular scheme's monthly GSTR-1 and GSTR-3B and you can see why a busy shop owner values it. You must still keep basic records of turnover and issue a bill of supply for each sale, even though it does not carry GST.

Composition vs regular: the honest trade-off

Composition is not automatically better. Choose it when your customers are mostly end consumers who do not care about input credit, your turnover is comfortably under the limit, and you value simple filings. Stay on the regular scheme when you sell to other businesses that want to claim GST credit, when you buy a lot with GST you would rather recover as input credit, or when you sell across state borders. The wrong choice can either bury a tiny shop in paperwork or quietly make a B2B supplier uncompetitive.

Whichever scheme you use, invoice cleanly

Composition dealers issue a bill of supply; regular dealers issue tax invoices with GST shown separately. Getting the document type and details right keeps you compliant and makes your turnover easy to total at return time.

The composition scheme trades input credit and invoice-level GST for a small flat tax and far less paperwork. If you are a small, mostly-local, consumer-facing business under the turnover limit, it can be a genuine relief. Run your own numbers and customer mix before you opt in.