Marginory

Online Seller Profit Calculator

Calculate true net profit after platform fees, payment processing, shipping, packaging, ad spend, discounts, and return rate. Works for any marketplace.

By Marginory team · Online sellers with hands-on experience across Etsy, Shopify & PODUpdated Fee data verified against official platform documentation

Enter your own fee rates.

Revenue

$
$

Costs

$
$
$
$

Fees

%
%
$
%
%

Risk

%

Expected % of orders returned. Impacts net profit.

Summary

Sale price (after discount)$25.00
Platform fee-$0.00
Payment fee-$0.00
Total cost (COGS + fees + ads)-$8.00
Net revenue (after fees)$25.00

Profit

Gross profit$17.00
Return cost impact-$0.00
Net profit$17.00
Profit margin68.0%
ROI on total cost212.5%

Pricing guidance

Break-even priceⓘ$8.00
Price for 20% marginⓘ$10.00
Price for 30% margin$11.43

How this is calculated

Platform fee: Sale price × Platform fee rate
Payment fee: Sale price × Payment fee rate + Fixed payment fee
Net revenue: Sale price − Platform fee − Payment fee − Currency conversion fee − Tax
Gross profit: Net revenue − Product cost − Shipping cost − Packaging cost
Return impact: Gross profit × Return rate
Net profit: Gross profit − Return impact − Ad spend
Profit margin: (Net profit / Sale price) × 100
Break-even price: (Fixed costs + Variable costs) / (1 − Combined fee rates)

Assumptions:

  • Ad spend expressed as cost per order (not total campaign spend)
  • Return rate applied to gross profit (lost profit per returned item)
  • Tax is seller-remitted VAT/GST (deducted from revenue), not income tax
  • Currency conversion fee applied only when listing in non-home currency

How to use this calculator

Select a platform preset to auto-fill fee rates, or use “Generic / Custom” to enter your own. Enter your sale price, costs, and optional ad spend. The calculator shows net profit after every deduction — including the often-overlooked impact of return rates.

What counts as product cost?

For physical products: your landed cost (manufacturing + import duty). For POD: the fulfillment cost charged by your print provider (e.g., Printify or Printful). For digital products: amortized creation cost or 0 if already profitable.

Related Tools

Pricing CalculatorBreak-Even CalculatorROAS CalculatorEtsy Profit CalculatorPOD Profit Calculator