What 'Price Realised' Means at Auction: Hammer, Premium and Fees

⁰¹When an auction house publishes a result, the figure most people quote is the price realised, spelled 'price realized' in American usage. It is not the same as the hammer price, and treating the two as interchangeable is one of the most common errors in reading auction evidence.

⁰²The hammer price is the final bid the auctioneer accepts when the hammer falls. It is the number competing bidders were actually bidding against, in the room, online or on the telephone. The price realised is the figure reported after the sale, and at the major houses it generally consists of the hammer price plus the buyer's premium.

⁰³Christie's and Sotheby's both explain in their buying guides that the buyer's premium is added to the hammer price and is payable by the successful bidder. The published result therefore sits closer to what the buyer committed to pay than to anything the seller received.

⁰¹The buyer's premium is the largest component added to the hammer. At the major houses it is charged on a sliding scale, with different rates applying to different portions of the hammer price, and the schedule can vary by saleroom, sale type and date. Houses publish their current schedules in their buying guides and conditions of sale, and those documents, not a remembered rule of thumb, are the reference.

⁰²Whether anything else is folded into the published number depends on the house's own convention. Results pages generally carry a short note stating what the prices include, and that note is worth reading every time. A figure described as including the premium tells the reader one thing; a figure described as including the premium and certain other charges tells them another.

⁰³Estimates, by contrast, are generally quoted before the premium is applied. That is why a lot can appear to have beaten its estimate on the published figure when the hammer price actually landed inside the range. For any claim about a work performing above or below expectations, the fair comparison is hammer against estimate.

⁰¹Even the premium-inclusive figure is rarely the whole cost of acquiring a work. Depending on where the sale takes place, where the buyer is based and the status of the individual lot, further charges can apply. Catalogues usually flag lot-specific charges with symbols explained in the front or back matter.

⁰²None of these usually appears in the published price. A buyer budgeting from a realised price, or a collector using one to establish what a work cost, needs to add them back from the actual invoice. Tax treatment in particular depends on individual circumstances and is a matter for a qualified adviser.

⁰¹Price realised says little about the consignor's proceeds. The seller's side of the calculation runs from the hammer price downward: the house deducts a seller's commission and may charge for photography, marketing, insurance, shipping or other services agreed in the consignment contract.

⁰²Those terms are negotiated and private. A sought-after consignment may carry very favourable seller terms, and it has been widely reported that houses competing for important consignments sometimes return part of the buyer's premium to the seller. None of that is visible from the published result.

⁰³The practical point is simple. Two works with identical realised prices may have produced materially different outcomes for their sellers, and neither outcome can be read from the public record.

⁰¹Because the premium is layered on top of the hammer, two realised prices are only directly comparable if the same premium schedule applied to both. Often it did not.

⁰²Across houses, premium structures differ, so the same hammer price in two salerooms can produce different published figures. Across time, houses have revised their premium schedules repeatedly, so an older result and a result from last season may rest on different rates even at the same house. Across currencies, conversion adds a further layer, with its own choice of rate and date.

⁰³Price databases add their own conventions. Some record premium-inclusive prices, some record hammer prices, and some allow both. A price history assembled from mixed sources without checking the field definition can show movement that is really just a change in what was being recorded.

⁰⁴Then there is the question of what kind of sale it was. A guaranteed lot, a lot sold to an irrevocable bidder, or a lot from a celebrated single-owner collection can realise a price shaped by conditions that do not transfer to the next comparable work.

⁰¹Used carefully, price realised is useful evidence. It records a completed public transaction at a stated moment, which is more than most private sales ever offer. The discipline lies in knowing exactly what that evidence contains.

⁰²Market signal is not market truth. A realised price shows what one buyer committed to pay, under one set of terms, on one day. Everything beyond that is interpretation, and interpretation is only as good as the reading of the number underneath it.