Profit monitor
Track real product profit after the calculator
When the estimate looks promising, move into SKU-level profit tracking so ad spend, shipping drift, and refunds do not quietly erase margin.
Try TrueProfitUse this calculator before setting a eBay price in United States
Sellers often lose margin through small costs that are easy to miss: payment fees, marketplace commission, shipping gaps, advertising spend, returns, packaging, and tax reserves. This page gives a quick planning model in USD so you can compare products before listing or scaling ads.
SEO-ready pricing workflow
- Enter a realistic sale price and landed product cost.
- Add shipping cost, ad cost per order, and a return reserve.
- Check whether net margin stays positive after fees and tax reserve.
- Compare the same product across related marketplaces and countries.
Turn this estimate into a product profit review
If the calculator shows thin margin, the next step is to check real SKU-level sales data. Request a free CSV profit review to find low-margin products, high ad cost, and price-review candidates from a sanitized marketplace export. For ongoing profit tracking, TrueProfit is a partner option for monitoring product profit, ad spend, shipping cost, and store-level net margin.
Recommended next step
Choose the next move if this product passes the margin check
Use a dashboard if the product already has sales data, or test whether a direct store gives you more room when marketplace fees are heavy.
Owned channel
Compare marketplace margin with your own store
If marketplace fees are heavy, test whether a direct Shopify checkout gives you more room after payment fees, shipping, and repeat purchase potential.
Explore ShopifyProfit planning example
Used, collectible, and refurbished products can vary widely in margin. Run the same item at several sale prices and promotion rates before listing.
Common margin mistakes
- Assuming promoted listing cost is optional for every category.
- Underpricing shipping on heavy or fragile items.
- Ignoring payment disputes and returns.
- Not comparing auction and fixed-price economics.
When to use this calculator
Use this page before ordering inventory, changing price, increasing ad spend, or expanding to another sales channel. Run conservative scenarios first, then compare the result with related calculators and official marketplace guidance.