Marketplace fees, explained simply
Understand the main marketplace costs that affect seller profitability, including referral fees, payment costs, fulfillment, shipping and fixed fees.
The costs behind a marketplace sale
A product can have a healthy selling price and still produce a weak profit after marketplace fees, fulfillment, shipping and other costs. The first step is to separate revenue from every cost that reduces the amount you keep.
1. Marketplace or referral fees
Many marketplaces charge a percentage of a transaction or sale amount. The rate can vary by category, marketplace and seller program. Enter the rate that applies to your specific account and product rather than assuming one universal percentage.
2. Payment costs
Payment processing can be a percentage, a fixed amount, or both. When applicable, include it separately so you can see how much payment processing contributes to total selling costs.
3. Product and shipping costs
Your product cost is the amount required to acquire or manufacture the item. Shipping can include inbound freight, fulfillment, packaging and the amount you subsidize for the customer. Keeping these costs separate makes margin analysis more useful.
4. Fulfillment and fixed costs
Fulfillment programs can add per-unit charges, while seller plans or subscriptions may create recurring costs. A calculator can help allocate these costs across the units you expect to sell.
How to use SellerCalc
Start with the marketplace calculator that matches your channel, enter your actual costs, and review profit margin and ROI together. If a result looks unexpectedly high or low, check each assumption before changing your price.