Selling across multiple ecommerce platforms is a great way to reach more customers and grow your business. Whether you’re selling through Amazon, Shopify, eBay, Walmart, or your own online store, having multiple sales channels can create more opportunities for revenue.
But here’s the challenge: More sales don’t always mean more profit.
Each ecommerce channel comes with its own fees, shipping expenses, advertising costs, and operational challenges. Without a clear understanding of these expenses, it’s easy to assume your business is performing better than it actually is.
So, how do you know which sales channels are truly making money?
The answer lies in tracking your actual profitability across every channel, not just your total revenue.
What Is True Profitability in Ecommerce?
True profitability is the amount your business earns after accounting for all the costs associated with selling your products.
Many ecommerce sellers focus primarily on revenue. However, revenue only tells you how much money comes in, not how much your business keeps.
Why Is Tracking Profitability Across Multiple Channels Difficult?
Managing finances becomes more complicated as your ecommerce business expands.
Different sales channels have different fee structures, payment schedules, and reporting systems. Tracking everything manually can quickly become overwhelming.
Some common challenges include:
Different marketplace fees: Amazon, eBay, and Walmart may charge different selling and fulfillment fees.
Multiple payment systems: Payments arrive through different processors and settlement schedules.
Inventory management: Products may be stored and sold across multiple warehouses and platforms.
Advertising expenses: Marketing costs vary depending on the sales channel.
Returns and refunds: Each platform handles refunds, reimbursements, and adjustments differently.
Disconnected financial data: Sales and expenses may be scattered across several dashboards.
Without accurate, centralized financial records, identifying your most profitable channels becomes difficult.
1. Track Revenue Separately for Each Sales Channel
The first step toward understanding profitability is tracking revenue for every ecommerce channel individually.
Instead of looking only at total business sales, break down your revenue by platform.
For example:
Amazon: $15,000
Shopify: $10,000
eBay: $7,000
Walmart: $5,000
This gives you a clearer picture of where your sales originate.
However, revenue alone doesn’t determine profitability. A channel generating higher sales might also have significantly higher operating costs.
Track net sales after discounts, returns, and refunds to make comparisons more meaningful.
2. Calculate the Cost of Goods Sold (COGS)
Your cost of goods sold represents the direct cost of the products you sell.
Depending on your business, COGS may include:
- Product purchase or manufacturing costs
- Raw materials
- Packaging directly associated with production
- Freight-in and other inventory acquisition costs
For accurate profitability reporting, calculate COGS based on the products actually sold during a specific period.
For example, if you sell 200 units at a cost of $12 each, your COGS is $2,400.
Tracking COGS accurately helps you understand product margins and identify which items contribute the most profit.
3. Account for Marketplace and Payment Processing Fees
Marketplace fees can significantly affect ecommerce profitability.
Each platform has its own pricing structure, making it important to track fees separately.
Common expenses include:
- Marketplace referral or commission fees
- Payment processing charges
- Fulfillment and storage fees
- Subscription fees
- Transaction-related service charges
For instance, a product sold for $50 on one platform may generate a different profit than the same product sold elsewhere.
Understanding these differences helps you determine which channels offer better margins.
4. Include Shipping, Advertising, and Operational Costs
One of the biggest mistakes ecommerce sellers make is overlooking expenses beyond product costs and marketplace fees.
Shipping, advertising, and operational expenses can quickly reduce your earnings.
Make sure you’re tracking:
- Shipping labels and carrier charges
- Packaging and fulfillment expenses
- Paid advertising campaigns
- Warehousing and storage costs
- Ecommerce software subscriptions
- Customer service and other operating expenses
Some costs can be assigned directly to a sales channel, while shared expenses should be allocated consistently using a reasonable method.
This helps you compare profitability without overlooking important business expenses.
5. Monitor Returns and Refunds
Returns are a normal part of ecommerce, but they can have a major impact on profitability.
A high return rate doesn’t just reduce revenue. It can also increase shipping, handling, and inventory-related expenses.
Monitor:
- Return rates by sales channel
- Refund amounts
- Return shipping costs
- Damaged or unsellable inventory
Identifying channels with unusually high return rates can help you improve product descriptions, pricing, and customer expectations.
6. Use Ecommerce Accounting Software to Automate Tracking
Manually combining sales reports, payment statements, and expense data from multiple platforms takes time and increases the risk of errors.
This is where ecommerce accounting automation becomes valuable.
Choosing the best ecommerce accounting software for your business can help simplify financial management by connecting sales channels with your accounting system.
Look for software that offers:
- Integration with multiple ecommerce platforms
- Automated sales and expense recording
- Marketplace fee tracking
- Inventory and COGS synchronization
- Payment reconciliation
- Channel-specific profitability reporting
Solutions like Webgility help connect ecommerce operations with accounting systems, reducing manual data entry and improving financial visibility.
With accurate financial information in one place, business owners can spend less time managing spreadsheets and more time making profitable decisions.
7. Review Profit Margins Regularly
Once your financial data is organized, review profitability consistently.
Use this formula:
Profit Margin (%) = (Net Profit ÷ Net Revenue) × 100
Compare profit margins across sales channels, products, and reporting periods.
Monthly reviews can help you:
- Identify your most profitable sales channels
- Adjust product pricing
- Reduce unnecessary expenses
- Improve advertising budgets
- Make smarter inventory decisions
Remember to reconcile marketplace settlements with bank deposits and record deductions separately. This helps prevent missing fees or payouts from distorting your reports.
Final Thoughts
Tracking true profitability across multiple ecommerce sales channels doesn’t have to be complicated.
The key is understanding where your revenue comes from, identifying every associated expense, and maintaining accurate financial records.
By tracking COGS, marketplace fees, shipping costs, returns, and profit margins, you can make better decisions about where to invest your time and resources.
And with the right ecommerce accounting software, you can automate repetitive tasks, improve financial accuracy, and gain a clearer picture of your business performance.
After all, successful ecommerce growth isn’t just about selling more. It’s about keeping more of what you earn.
Michael Carter