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Business and GST calculators

Running a small business means doing a lot of maths in your head: what to charge, how much GST to add, whether a discount still leaves a profit, and how many orders you need a month just to cover rent. These tools do that maths properly. They're built around GST 2.0 rates (0%, 5%, 18% and 40%, in force since 22 September 2025) and the way Indian marketplaces actually charge sellers.

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1GST calculatorAdd or remove GST, with the CGST/SGST or IGST split.2GST invoice generatorMake a GST or simple invoice and download it as a PDF.3Product pricing calculatorPrice cakes, food or handmade items with all costs and platform fees.4Online seller profit calculatorReal profit per order on Amazon, Flipkart, Meesho or your site.

All business & gst tools

GST calculatorAdd or remove GST, with the CGST/SGST or IGST split.GST invoice generator NEWMake a GST or simple invoice and download it as a PDF.Profit margin calculator NEWMargin and markup from cost and price, or the price for a target margin.Markup calculator NEWSelling price from cost and markup, with the real margin.Break-even calculator NEWSales needed each month to cover your costs.Discount calculator NEWFinal price after one or two discounts and cashback.Product pricing calculator NEWPrice cakes, food or handmade items with all costs and platform fees.Percentage calculator NEWX% of Y, what % X is of Y, and % change.Online seller profit calculator NEWReal profit per order on Amazon, Flipkart, Meesho or your site.GST interest & late fee calculator NEWInterest and late fee for filing GSTR-3B late.

They were designed with home businesses, bakeries, online sellers and freelancers in mind, and each one explains the thinking behind the number so you can make the decision, not just see a figure.

Pricing that actually makes money

The most common mistake in a new business is pricing on cost plus a round markup and forgetting packaging, delivery, payment fees and your own time. Work out the full cost per unit in the product pricing calculator, check the margin you really keep in the profit margin calculator, then use break-even to see how many sales a month cover your fixed costs. If you sell on Amazon, Flipkart or Meesho, the online seller profit calculator adds commission, shipping and returns.

Rates and rules last reviewed 27 September 2026 by Viraj Sarfare.

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