vvBlogger All calculators
Business & GST

Online Seller Profit Calculator

Marketplace fees, shipping, returns and ads quietly eat margins. Enter your numbers to see the real profit on every order.

Reviewed 27 September 2026By Viraj SarfareFormula shown belowRuns in your browser
₹
%
0%40%
₹
%
0%40%
Check your category's rate card; it changes.
₹
₹
₹
%
0%50%
₹
Profit per order
₹204
margin 21.4% of the price before GST
Price before GST₹951.43
Marketplace fees incl. GST₹277.13
Max ad spend to break even₹263.62
Profit on 100 orders₹20,362
Want this as a spreadsheet you can keep?The Small Business Money Kit (Excel + Google Sheets) goes further than this free tool. ₹499.
See what's inside

Why sellers think they're profitable when they aren't

A product that costs ₹380 and sells for ₹999 looks like a great deal. But GST comes out of the price first. The marketplace takes a commission, plus fixed or closing fees and shipping, and charges 18% GST on those fees. Some orders come back, costing shipping both ways. And ads to get the sale cost money too. This calculator subtracts everything, so you see the profit you actually keep.

METHOD
Profit = price ÷ (1 + GST) − product cost − (commission + fixed fee + shipping) × 1.18 − packaging − ad spend − average cost of returns
Enter your category's actual fees; marketplaces change rate cards often and they differ by category and price band.

Worked example

A product selling for ₹999 is worth ₹951.43 before GST. After ₹277.13 of marketplace fees (including GST on them), product cost, packaging, ads and the average cost of returns, the profit is ₹203.62 per order, a 21.4% margin. You could spend up to ₹263.62 on ads per order before losing money.

Where to find margin

  • Returns: clearer photos, size charts and honest descriptions often cut returns more than any fee negotiation.
  • Weight and dimensions: shipping fees jump at weight slabs. Slimmer packaging can drop you a slab.
  • Price bands: some marketplaces charge lower fees below certain price points. Check whether a small price change moves you to a cheaper band.
  • Input tax credit: if you're GST-registered, GST paid on marketplace fees can be claimed as credit, which improves the real margin.
  • Your own website or WhatsApp orders: no commission, just payment gateway fees (usually around 2%) and shipping.

Plan pricing before listing with the product pricing calculator, and check volume needed with the break-even calculator.

Frequently asked questions

How much commission do Amazon and Flipkart charge?

It depends on the category and price, and changes periodically, typically somewhere between a few percent and over 20%, plus fixed and shipping fees. Check your seller dashboard's current rate card.

Is GST charged on marketplace fees?

Yes, 18% GST applies to commission and other fees. Registered sellers can usually claim it as input tax credit.

How do returns affect profit?

Each return usually costs shipping both ways plus packaging, and sometimes a damaged product. The calculator spreads that cost across all orders.

One useful money email a month

New calculators, rate changes (PPF, FD, repo rate) and one practical tip. No spam, ever.

By subscribing you agree to our privacy policy. Unsubscribe anytime.