Setting prices that cover eBay fees and Amazon costs, and repricing when Amazon moves.
eBay's seller currency conversion charge is 2.5%, rising to 2.75% from 1 December 2026, and it can apply when money from a sale has to be converted into a different currency for your payout. If you sell on an eBay site in another currency, treat it as a percentage fee in your pricing formula, alongside final value and ad fees.
The break-even price is the lowest eBay price at which a sale neither makes nor loses money. Calculate it by adding your full cost and every fixed cost per order, then dividing by one minus all percentage fees. Use it as a hard floor: your repricer should never push a listing below it, whatever the competition does.
Black Friday pricing on eBay works best as a plan made weeks ahead: decide which listings to cut, which to hold and which to pause, set a profit floor on everything, read supplier costs more often during the event, and reverse every temporary change when it ends. Then lengthen handling times for the busy delivery weeks before Christmas.
When the Amazon price you source from drops, first check whether it is a lasting change or a short deal. Pass a lasting drop on to your eBay price, at least partly, so competitors pricing from the same cost cannot undercut you. Treat short deals with care, keep your profit floor, and reprice back up the moment the cost returns.
99p pricing on eBay means ending prices in .99, such as £14.99 rather than £15.00. It can make a price look lower and keep it under a buyer's price filter, but no ending makes a poor listing sell. Round up to .99 after your formula, never down below your floor, and test endings on your own listings.
