Transaction Cost per Order: Average Payment Processing Cost

Transaction Cost per Order measures the average payment processing fee per order—Shopify Payments, Stripe, PayPal, and other gateway fees.

Formula

Transaction Cost per Order = Total Transaction Costs ÷ Orders

Formula Components

Metric	Definition
Total Transaction Costs	Total payment processing fees
Orders	Count of orders

Metadata
Type	Currency
Data Source	Shopify, Upstack Costs
Aggregation	Average

Example

Your Shopify store has $4,500 transaction costs across 1,000 orders.

Component	Value	Calculation
Transaction Costs	$4,500	Payment fees
Orders	1,000	Order count
Transaction Cost per Order	$4.50	$4,500 ÷ 1,000

How It Works

Transaction costs are typically calculated as a percentage of revenue plus a fixed fee per transaction (e.g., 2.9% + $0.30). Higher AOV orders have lower transaction cost as a percentage.

When to Use

Scenario	Action
CM2 calculation	Transaction costs reduce CM1
Payment method analysis	Compare costs by payment type
Pricing decisions	Factor transaction fees into margins
Gateway comparison	Evaluate payment processor costs

Metric	Relationship
Transaction Cost	Total payment fees
Transaction Cost %	Percentage of revenue
CM2 per Order	Margin after transaction costs

See all Transaction metrics →