Marketplace Commissions Explained for Online Sellers
Online marketplaces help sellers reach customers, manage orders, and receive payments. In return, they usually deduct a fee from each sale. This fee is called a marketplace commission.
Marketplace commissions affect physical-product sellers, digital-product creators, freelancers, and service providers. Tracking these charges is important because total sales are not the same as actual profit.
What Is a Marketplace Commission?
A marketplace commission is the fee charged by a platform for helping a seller complete a sale.
It may cover:
- Access to customers
- Product listings
- Payment support
- Customer service
- Fraud protection
- Dispute management
- Platform technology
The fee may be a percentage of the sale, a fixed amount, or both.
Commission Example
Suppose a product sells for $100 and the marketplace charges a 10% commission.
- Gross sale: $100
- Marketplace commission: $10
- Payment-processing fee: $3.20
- Net amount before other costs: $86.80
The seller made a $100 sale but did not actually receive the full amount.
Common Marketplace Fees
Sales Commission
A percentage is deducted whenever a product or service is sold.
Listing Fee
Some platforms charge sellers to publish or renew a product listing, even when the product does not sell.
Payment-Processing Fee
This is charged for processing the customer’s card, wallet, or online payment.
Subscription Fee
Some marketplaces offer monthly paid plans with extra tools, more listings, or reduced selling fees.
Advertising Fee
Sellers may pay additional fees to promote products or improve their marketplace visibility.
Refund or Cancellation Cost
When an order is refunded, some fees may not be returned to the seller.
How Commissions Reduce Profit
Imagine a seller receives a $100 order.
- Marketplace commission: $10
- Processing fee: $3.20
- Advertising cost: $12
- Software cost: $4
- Tax allowance: $10
Estimated profit:
$100 − $10 − $3.20 − $12 − $4 − $10 = $60.80
Without tracking these costs, the seller may incorrectly believe the business earned $100.
How to Track Marketplace Fees in Excel
A simple Excel sheet can include:
| Column | Purpose |
|---|---|
| Date | Order date |
| Marketplace | Selling platform |
| Product | Product or service sold |
| Gross Sale | Customer payment |
| Commission Rate | Marketplace percentage |
| Commission | Amount deducted |
| Processing Fee | Payment fee |
| Advertising Fee | Promotion cost |
| Refund | Refunded amount |
| Total Fees | Combined costs |
| Net Received | Final amount earned |
Commission Formula
=Gross Sale*Commission Rate
Total Fees Formula
=Commission+Processing Fee+Advertising Fee+Other Costs
Net Received Formula
=Gross Sale-Total Fees-Refund
How to Reduce Marketplace Costs
Sellers can protect profit by:
- Including commissions in product pricing
- Creating higher-value product bundles
- Comparing fees across marketplaces
- Reducing unnecessary advertising
- Removing unprofitable listings
- Tracking refunds and cancellations
- Reviewing fees every month
Final Thoughts
Marketplace commissions are a normal cost of selling through online platforms. However, sellers should calculate all commissions, payment fees, advertising costs, refunds, and other expenses before measuring profit.
A ready-to-use Excel marketplace commission tracker can help sellers compare platforms, calculate net earnings, and make better pricing decisions.