# Conditions of sale

> The terms that govern an auction: buyer's premium, bid increments, payment deadlines, collection and shipping, liability for descriptions, and the rules for absentee, telephone and online bids. Bidders accept them when registering.

- URL: https://www.selloff.auction/glossary/conditions-of-sale
- Language: English
- Also known as: Terms of sale, Terms and conditions of sale
- Last updated: 2026-10-07
- Français: https://www.selloff.auction/fr/glossaire/conditions-de-vente.md

## Definition

The terms that govern an auction: buyer's premium, bid increments, payment deadlines, collection and shipping, liability for descriptions, and the rules for absentee, telephone and online bids. Bidders accept them when registering.

Conditions of sale must be consistent with local law and with the terms of any platform on which the sale is published. They are usually printed in the catalogue and available online.

In Selloff, the buyer's premium, buyer's insurance and bid increment scheme are set per sale, and a terms of sale PDF can be attached to each catalogue.

## Related features

- [Sales & auction types](https://www.selloff.auction/features/auction-types.md): Run auctions, offer sales, eBay-style timed sales and fixed-price sales, each with its own sessions, catalogues, dates, fees and bid increments.

## Related terms

- [Buyer's premium](https://www.selloff.auction/glossary/buyers-premium.md): A charge, usually a percentage of the hammer price, that the buyer pays to the auction house on top of the hammer price. The rate is published in the conditions of sale and can differ from one sale to another.
- [Bid increment](https://www.selloff.auction/glossary/bid-increment.md): The minimum amount by which each new bid must exceed the previous one. Increments rise with the price and are defined in a table published in the conditions of sale.
- [Catalogue](https://www.selloff.auction/glossary/catalogue.md): The publication that presents the lots of a sale in order, with lot numbers, descriptions, images, estimates and the conditions of sale. It exists in print, as a PDF and online, often on several platforms at once.