Profit margin calculator

See your real margin after the checkout stack takes its cut

Margin gets distorted fast when coupons, VAT, affiliates, refunds, and Stripe fees all come out before you pay yourself. Use the worked scenario below, then open the calculator to see what your sale actually leaves behind.

  • Built for digital products, courses, templates, and software.
  • Handles Stripe fees, VAT, coupons, affiliates, and refund reserves.
  • Free, no signup, your numbers stay in your browser.

Worked example

A $100 sale can shrink to a 54.45% margin faster than most sellers expect.

The preset below uses a $100 list price with a 10% coupon, 20% VAT, a 30% affiliate cut, a 5% refund reserve, $5 in delivery cost, and Stripe's standard 2.9% + $0.30 fee.

Result

You keep $40.84 per sale. That's a 54.45% margin after coupons, VAT, affiliates, refunds, and Stripe fees.

Break-even sits at $11.49. A 20% target margin only needs $17.02.

List price
$100.00 before discounts, with a 10% coupon bringing the sale price to $90.00.
VAT and fees
$15.00 goes to VAT and $2.91 goes to Stripe before you count anything else.
Partner and risk costs
$22.50 goes to the affiliate partner and $3.75 stays in refund reserve.
Net profit
$40.84 per sale after the full stack, including the $5.00 product cost.
Open this scenario in the calculator

What this profit margin calculator helps with

Margin that matches payout reality

Margin percent only matters after the calculator removes VAT, fees, partner payouts, refund reserve, and product cost in the right order.

Break-even next to margin

A healthy-looking percentage can still hide a fragile offer. Keep the margin, break-even price, and target-margin price together so pricing decisions stay honest.

Your numbers stay yours

The math happens in your browser. No account, no saved data, no email gate.

More tools

Check the margin before you trust the offer