All 610 calculators & guides

Use the numbers before you list. These tools make the assumptions visible so UK sellers can replace defaults with the exact figures shown in Seller Hub.

Selling costs can turn a good-looking sale into a weak one. Separate category fees, order charges, optional extras, advertising and your own costs.

Business final value fees are category-dependent, so the exact category and any rate threshold matter before you calculate profit.

A Shop subscription is a fixed monthly cost. Judge it on listing volume, included allowances and features you will genuinely use.

Advertising can increase exposure but also raises the break-even point. Judge campaigns on contribution after all selling costs.

Delivery is part of the commercial decision. Packed size, weight, service, tracking and packaging all affect margin and buyer experience.

Keep marketplace reporting, tax liability and selling fees separate. Good records make each question easier to answer.

Useful research joins sold prices, demand, competition, condition and total selling costs. Asking prices alone are not enough.

A strong listing reduces buyer uncertainty with a clear title, correct category, complete specifics, honest condition and useful photographs.

Account health is operational: accurate listings, dispatch, tracking, communication and clean records prevent avoidable problems.

Returns are easier to manage when the listing, packaging, tracking and condition evidence were handled properly before the problem arose.

Compare the amount you keep, buyer demand, effort, delivery expectations, protection and likely selling price for the specific item.

Pricing, offers, discounts, dispatch and stock control should be judged by net profit and repeatability.

International selling adds destination fees, customs information, tax rules, longer delivery chains and more expensive returns.

The best selling method depends on the item. Buyers care about different condition details, accessories, measurements and packaging.