About the eBay Promoted Listings Breakeven calculator
This is a free, fast, no-signup pair of calculators for eBay sellers. The main tool finds the Promoted Listings Standard ad rate at which a sale stops making you money, from your real item cost, sale price, shipping, and category. The companion max buy price tool runs the same fee math backwards, so you know the most you can pay for inventory and still hit a target profit. Both run entirely in your browser; nothing you type is sent anywhere.
Why a whole tool for an ad rate
Because the number is deceptive. Promoted Listings Standard charges its fee on the entire sale total, not on your profit, so an ad rate that sounds small can be larger than the margin you were keeping. Sellers routinely set a round ad rate across their whole store and quietly promote thin-margin items into the red. A tool that computes the exact breakeven from your own numbers, and shows profit across every ad rate from 1% to 20%, replaces a guess with a line you can see.
Freshness is the point
eBay changes its category fees frequently, and the most-categories rate was raised in early 2026. Every fee on this site lives in a single dated data module, and that date is shown on the page next to the numbers. The current figures were verified 2026-02-15. When eBay changes a rate, the table and its date are updated together, so you can always judge how current the answer you are reading is, rather than trusting a number with no provenance.
Who runs it
These calculators are operated by Crossroads Technologies LLC, a small independent studio that builds focused, single-purpose web utilities. They are part of a small family of reseller math tools that share a look and a standard of care. There is no account system, no content farm, and no data collection inside the tools.
An important limit
These tools produce estimates for planning. They are not financial advice and they are not a guarantee of eBay's charges, which depend on your exact category, seller status, and any promotions or store subscription you hold. Always confirm your fees against eBay's own selling-fees page before you rely on a number. Reach us through the contact page.