Marketplace fee calculator
The headline commission is the tip of the iceberg. Stack every cut — commission, service fees, ads, discounts, per-order fees — into one effective take-rate, and see what it drains from your margin each month.
- Free
- Your numbers, in your browser
- No sign-up
Illustrative starting values, not official rates or seller averages. Enter your account figures for every field.
The commission is not the cost
Every seller knows their headline commission. Almost none track the full stack — the applicable service fees, the advertising and promotions you use, the per-order processing fee. One by one each looks reasonable. Added together, they can reduce margin even as revenue grows.
The fix isn’t to leave the marketplace — it’s strong at discovery. It’s to stop paying the full take-rate on every order. Let the marketplace find a buyer once, then move the relationship to a channel you own, where the second order and beyond don’t pay the cut again. See how that works on a channel you own, and estimate the WhatsApp side with the cost calculator.
Frequently asked questions
What is an “effective take-rate”?
The effective take-rate is the share of revenue spent on the channel costs you enter once you add up everything — category commission, applicable service fees, advertising and promotions you use, per-order processing fees, paylater costs, and returns. The headline commission is only one line. The effective take-rate is the honest number, and it is usually far higher than the commission alone.
Why include ads and discounts as marketplace costs?
Advertising and promotions affect your margin when you use them. They are not universal mandatory charges. Include your actual spending and check each program’s terms; match the reporting period and revenue basis to avoid counting a cost twice.
Is this a substitute for leaving the marketplace?
No — marketplaces are strong at discovery, and this calculator is not an argument to quit them. The fix is to separate discovery from ownership: let the marketplace find a buyer once, then move the relationship to a channel you own (like WhatsApp) so repeat orders do not pay the full take-rate again. The calculator shows what those repeat orders are costing you today.
What would the same repeat order cost on WhatsApp?
Direct sales can avoid marketplace commission, but you still need to include platform subscriptions, AI usage, Meta messaging, payment processing, fulfillment, and other applicable selling costs. Compare the full cost of both channels using your own account figures. The WhatsApp cost calculator estimates messaging costs, not your total cost per order.
Own the second order — on WhatsApp.
Let the marketplace find the buyer; keep the relationship. bitbybit captures the customer, builds the record, and re-sells on WhatsApp where repeat orders skip the take-rate. Start free, no credit card.