What is GST Composition Scheme Calculator?
GST Composition Scheme Calculator helps you estimate the composition levy on turnover at the rate you enter.
The main result is composition levy, with a breakdown of central portion and state portion. The formula, example and assumptions below explain how to interpret it.
How to use GST Composition Scheme Calculator
Use the example to get familiar with the form, then enter your own figures. Any rates in the example are illustrative. Check the field labels and units before calculating.
- Gather eligible taxable turnover (₹) and applicable combined composition rate (%). Use values from the same situation or reporting period.
- Replace the example eligible taxable turnover with your own value, then complete the other fields. Check the displayed units.
- Select Calculate and read composition levy with its result breakdown. Change one input and calculate again to compare a second scenario. Reset restores the original example.
- Enter eligible taxable turnover in ₹, at least 0. Decimals are accepted.
- Enter applicable combined composition rate in %, at least 0 and at most 100. Decimals are accepted.
GST Composition Scheme Calculator: a worked example
With the inputs below, the result is ₹10,000 (composition levy). Follow the example, then replace these illustrative values with your own.
| Input or output | Example value |
|---|---|
| Eligible taxable turnover (₹) | ₹10,00,000 |
| Applicable combined composition rate (%) | 1 % |
| Composition levy | ₹10,000 |
| Central portion | ₹5,000 |
| State portion | ₹5,000 |
Understanding the GST Composition Scheme result
Read composition levy alongside central portion and state portion. These describe different parts of the same calculation.
Displayed results use a readable number of decimal places. When checking a result by hand, keep extra precision until the last step. To compare scenarios, change one input at a time and keep the others fixed.
- Example Central portion: ₹5,000
- Example State portion: ₹5,000
GST Composition Scheme Calculator: assumptions and common mistakes
A useful estimate starts with the right inputs. Check the following assumptions and limits before applying the result to your situation.
- This estimates the levy only; it does not determine composition-scheme eligibility or turnover exclusions.
- Use the rate and eligibility rules that apply to your transaction. An example rate does not establish a tax liability or entitlement.
For wider guidance, visit Income Tax Department. The formula and scope of this specific tool are stated on this page.






