GST Composition Scheme Calculator

What is the GST Composition Scheme?

The GST composition scheme is a simplified tax option introduced under Section 10 of the CGST Act, 2017 for small businesses in India. It allows eligible taxpayers to pay GST at a flat, reduced rate on their total turnover instead of charging and collecting GST on each invoice at standard rates.

The scheme was designed to reduce the compliance burden on small businesses by replacing monthly return filing with quarterly payments and an annual return. Unlike regular GST where businesses must file GSTR-1 and GSTR-3B every month, composition dealers only file Form CMP-08 quarterly and GSTR-4 annually. Businesses can use a GST calculator to compare tax amounts under both schemes before deciding.

• Available for businesses with annual turnover up to Rs 1.5 crore (Rs 75 lakh for special category states)
• Tax rates are significantly lower: 1% for manufacturers/traders, 5% for restaurants, and 6% for service providers
• Composition dealers cannot claim Input Tax Credit (ITC) on purchases and cannot make inter-state sales

How is Composition Tax Calculated?

The composition tax is calculated as a flat percentage of the total turnover. Unlike regular GST where tax is charged on each transaction, composition tax applies on the aggregate turnover for the quarter.

The composition rate depends on the business type. The tax is split equally between CGST and SGST since composition dealers can only make intra-state supplies. Quarterly payment is one-fourth of the annual liability, filed through Form CMP-08. Businesses should also track their invoice values to ensure they stay within the turnover threshold.

Composition Tax Calculation with Example

Let's calculate the composition tax for a small restaurant in Maharashtra with an annual turnover of Rs 80 lakh.

Now compare this with regular GST. Under regular GST at 5% (standard restaurant rate), the tax on Rs 80 lakh turnover would also be Rs 4,00,000. However, regular dealers can claim Input Tax Credit on purchases, which reduces their effective tax. If the restaurant has Rs 30 lakh in GST-eligible purchases at 18%, the ITC would be Rs 5,40,000, making regular GST more beneficial in this case. The trade-off is simpler compliance under composition versus potential ITC savings under regular GST. Use our Reverse GST Calculator to extract the base price from any GST-inclusive amount when evaluating your inputs.

Who is Eligible for the Composition Scheme?

Eligibility for the GST composition scheme depends on turnover, business type, and supply pattern. Here are the key conditions:

• Turnover limit: Aggregate annual turnover must not exceed Rs 1.5 crore for regular states and Rs 75 lakh for special category states (northeastern states and hill states)
• Intra-state only: The business must supply goods or services only within the state. Inter-state sales are not permitted under the composition scheme
• No e-commerce: Businesses making supplies through e-commerce operators like Amazon or Flipkart cannot opt for composition
• Excluded goods: Manufacturers of ice cream, pan masala, tobacco products, and aerated drinks are not eligible regardless of turnover
• Service providers: Pure service providers can opt in only if their turnover does not exceed Rs 50 lakh per year. They pay a flat 6% tax rate. Tracking total employee costs helps service providers assess their overall business expenses alongside tax liability

How to Use This Composition Scheme Calculator

This free calculator helps you check eligibility and estimate your tax liability under the GST composition scheme. Follow these steps:

• Step 1: Enter your annual turnover. This should be your aggregate turnover across all branches and registrations under the same PAN
• Step 2: Select your business type from the dropdown: Manufacturer/Trader, Restaurant, or Service Provider. Each has a different composition tax rate
• Step 3: Choose your state category. Special category states have a lower turnover threshold of Rs 75 lakh compared to Rs 1.5 crore for regular states
• Step 4: Select the regular GST rate that would apply to your goods or services under the normal scheme, for comparison purposes
• Step 5: Click "Check Eligibility & Calculate" to see your eligibility status, annual and quarterly tax amounts, and a comparison with regular GST

Composition Scheme vs Regular GST: Which is Better?

Choosing between the composition scheme and regular GST depends on your business model, input costs, and compliance capacity. Here are the key differences to consider:

• Tax rate advantage: Composition rates (1% to 6%) are much lower than regular rates (5% to 28%). For businesses with low input costs, composition saves significant tax
• ITC trade-off: Regular dealers can claim ITC on purchases, while composition dealers cannot. If your purchases carry high GST, the ITC benefit under regular scheme may exceed the rate advantage of composition
• Compliance simplicity: Composition requires only 5 filings per year (4 quarterly CMP-08 + 1 annual GSTR-4) versus 25+ filings for regular dealers (monthly GSTR-1 and GSTR-3B plus annual return)
• Invoice restrictions: Composition dealers issue a Bill of Supply, not a tax invoice. This means their business customers cannot claim ITC on purchases from composition dealers
• Growth limitations: If you plan to expand to other states or sell through e-commerce, regular GST is the only option. Composition restricts you to intra-state sales. Calculate your profit margins under both schemes to make an informed decision