GST Composition Scheme vs Regular Scheme: Key Differences

The regular scheme is the default for a GST-registered business. You charge GST on each taxable sale, collect it from the customer, set off the GST you paid on eligible purchases against it, and pay the balance to the government.

The composition scheme is an optional, simpler route for eligible smaller businesses. You do not work out tax invoice by invoice. You pay tax as a fixed proportion of turnover and get a lighter compliance pattern. In return you give up input tax credit, cannot pass GST on to customers, and accept limits on the kinds of supply you can make.

This guide covers how the schemes work in principle. It does not cover turnover limits or composition rates. These are notified by the government and can change, so confirm the current figures on the GST portal or with your CA.

Treat this table as a summary of principles. Eligibility conditions, exceptions for particular kinds of business and the exact return forms are set by law and notifications. Confirm how they apply to your business before you act.

On the regular scheme, the GST you pay suppliers on eligible purchases can reduce the GST you owe on sales. On the composition scheme, that GST becomes part of your cost. If you buy heavily from registered suppliers, losing credit can cost more than the scheme saves on compliance.

For illustration only: say a shop buys goods with GST included in the supplier's invoice. On the regular scheme, that GST can be set off against the GST charged on sales. On the composition scheme, the same GST stays in the cost of goods and cannot be recovered. Your CA can rework this with your real purchase mix and the current rates.

If you stay on or move to the regular scheme, credit only helps when purchases are recorded correctly and match what suppliers report. The input tax credit reconciliation guide explains how to check this each month.

A composition dealer issues a bill of supply, not a tax invoice, and must not show or collect GST on it. The CGST Rules also require a composition business to state its status at the top of each bill of supply and on the signboard at each place of business. Check the current wording with your CA.

A regular dealer issues a tax invoice that carries the required particulars, including GSTIN, place of supply and the tax charged. The GST invoice checklist for service businesses covers these particulars in more detail.

Composition is mainly meant for businesses that sell locally. Inter-state outward supplies are restricted, and supplies made through e-commerce operators carry their own conditions. Some categories of goods and services are excluded from the scheme altogether. Check that your current and planned sales channels fit within the scheme.

The type of customer also matters. Registered business buyers usually want credit, and they cannot claim it on a purchase from a composition dealer. If most of your customers are businesses, composition may make you a less attractive supplier even where you qualify for it. If most of your customers are consumers, they cannot use credit anyway, so this matters far less.

On the regular scheme you report outward supplies and pay tax on a recurring cycle, and you reconcile purchases for credit. The GSTR-1 vs GSTR-3B checklist explains how the two main regular returns fit together.

On the composition scheme the filing pattern is simpler and less frequent than on the regular scheme. The exact forms, frequency and due dates are notified and can change. Take them from the GST portal or your CA, not from a fixed calendar.

Composition also has tax obligations of its own. Tax under reverse charge may still apply to certain purchases, and the reverse charge GST guide on self-invoices and payment vouchers explains those mechanics.

• ✓Is my business eligible for composition, given my turnover, the goods or services I supply and my other registrations under the same PAN?
• ✓Roughly how much input tax credit would I give up each year based on my purchase mix?
• ✓What share of my customers are registered businesses that would lose credit on my sales?
• ✓Do I sell inter-state, or through e-commerce platforms, now or in my plans?
• ✓What happens to the credit on stock I hold when I move into or out of composition?
• ✓What is the procedure and timing for opting in or out, and what events would force me out of the scheme?
• ✓What changes do I need in invoice formats, signage and billing software?
• ✓Which returns will I file under each scheme, and how often?
• ✓How do reverse charge purchases work for me under each scheme?

• Choosing composition only for lighter filing without working out the credit you would lose.
• Collecting GST from customers, or issuing tax invoices, while on composition.
• Starting inter-state or marketplace sales without checking whether the scheme allows them.
• Ignoring stock-related credit adjustments when you move between schemes.
• Assuming that last year's eligibility conditions, rates or limits still apply.

This comparison does not apply to businesses that are not registered under GST, and special categories may follow separate rules. If you are unsure which category you fall into, get advice before you register or switch.