Model real profit after product costs, fulfillment, commerce/payment fees, Meta ads, creator commissions, returns and discounts — with break-even CPA and ROAS.
Editable planning assumptions. Verify current fees against your account, product and platform terms.
Enter the rates that apply to your actual checkout/payment setup.
The calculator above is designed for Facebook and Instagram selling flows where the cost stack can vary. Start with selling price, buyer-paid shipping and discounts, then enter product cost, fulfillment, commerce or selling fees, payment processing, creator commissions, returns, packaging, samples, advertising and recurring costs. The sticky summary shows profit per order, net margin, ROI, break-even CPA, break-even ROAS and monthly profit while you adjust assumptions.
The key is not to assume one universal “Meta Shop fee.” A merchant sending shoppers to a website checkout can have a different cost structure from a commerce flow using another partner or payment route. Keep commerce and payment fees separate so you can change one without hiding the other.
Creator commissions and advertising should not be merged automatically. A creator may be paid a percentage or fixed amount while Meta advertising is charged separately. Keeping them distinct shows whether the acquisition cost comes from media, creator economics or both.
Consider a $45 order that checks out on the merchant's website. Assume $15 product cost, $5 fulfillment, $1 packaging, a $1.50 expected return reserve, $8 of advertising and a 2.9% + $0.30 payment-processing example. With the commerce selling-fee field set to zero for this hypothetical route, payment processing is about $1.61. Total modeled cost is $31.11 and profit is about $13.89, a 30.9% margin. Before advertising, the order can support about $21.89 of acquisition cost, implying a break-even ROAS near 2.06×.
| Cost layer | Typical treatment | What to verify |
|---|---|---|
| Commerce / selling fee | Editable percentage | Your actual market and checkout route |
| Payment processing | Percentage + fixed fee | Processor, country and payment method |
| Creator commission | Optional order-level cost | Creator agreement or affiliate terms |
| Meta advertising | CPA or attributed spend | Campaign reporting and attribution window |
| Returns / samples | Expected cost allowance | Your historical rate rather than a generic benchmark |
This example deliberately keeps Meta's commerce fee editable instead of presenting one global rate. That avoids treating a fee that applies in one commerce setup as if it applies to every seller.
No. Checkout route, market, commerce platform and payment provider can change the applicable fees. Keep the commerce and payment fields matched to your actual setup.
Enter the effective commission or creator cost attributable to the order. If you do not use creator commissions, leave that cost at zero.
Break-even CPA is the maximum modeled advertising cost per order that leaves profit at zero after the other costs entered.
Yes. Set the commerce fee according to your actual checkout route and include the payment-processing rate charged by your ecommerce stack.
Because Meta commerce routes and third-party checkout arrangements can differ, the calculator keeps those fees editable. Confirm current charges in your own commerce and payment accounts. See our methodology.