What an estate auction is
An estate auction is the contents of one house entered at a saleroom by the executor and sold as lots, on the saleroom’s premises, weeks after the house was emptied. A valuer visits, the goods are collected by the saleroom’s van, and each item is catalogued and offered in whichever of the room’s sales it belongs to. The sale happens at the saleroom rather than in the house, unless the entry is large enough for the room to run the sale on site.
Two different things carry the phrase, and the difference matters before anybody signs anything. This page is about chattels: furniture, pictures, silver, books, jewellery, the contents of the loft. A probate property auction sells the house, through a property auctioneer, and none of the charges or timings below apply to it.
The arrangement suits an executor because it produces a public sale at arm’s length, with a document at the end that states what every lot made. That document is what HMRC reads.
The sequence, and what the executor decides at each stage
Seven stages run between the first telephone call and the money. Five of them carry a decision for the executor, and two are the saleroom’s work alone.
| Stage | What happens | What the executor decides |
|---|---|---|
| The valuer’s visit | A specialist walks the house and separates what will sell from what will not | Which room the van is allowed into, and what is held back |
| The written valuation | A report at open market value at the date of death, for the inheritance tax return | Whether to pay for one before the contents leave |
| Collection | The van takes only what the saleroom agreed to take | What stays behind for a clearance firm |
| Lotting | Each item is numbered, described and photographed. Small things are grouped into box lots | Nothing. The grouping is the saleroom’s judgement |
| Estimates and reserves | The estimate is published; the reserve is confidential and cannot exceed the low estimate | The reserve on each lot, agreed in writing |
| Viewing and the sale | Buyers handle the goods, then bid | Nothing |
| The account of sale | Every deduction is itemised against every lot | Whether the deductions match the terms that were signed |
The reserve is the stage executors give least thought to and regret most. Setting one at the low estimate on every lot guarantees that anything bidding below its estimate is bought in, and a room that charges an unsold fee charges it on every lot that comes back. Leaving the general run of furniture unreserved, and reserving only the pieces that were valued on their own, avoids paying to have the furniture brought back.
Why the contents of one house go to more than one sale
Specialist sales run two to four times a year in each department, and the general sale comes round many times between them. An estate entry is split between the two at the lotting stage: the sideboard and the beds go into the next general sale, the silver waits for the silver sale, the medals wait for the militaria sale.
For the executor this turns one consignment into several settlement dates. A house collected in October produces money on the general lots around the turn of the year, and later again on whatever waited for a specialist department, with each account of sale arriving four to six weeks after its own sale. The auctions guide sets out that timetable and the charges behind it.
Splitting the entry is the right decision even so. The buyers who pay above the room’s ordinary level for a piece of Georgian silver are in the silver sale, and they are not in the Tuesday general sale.
What 42 lots cost to sell
Fixed charges are levied per lot, so the cost of selling a house turns on how many lots it makes rather than on what it makes in total.
Take the Sussex farmhouse entry in the price records: 42 lots, furniture, pictures and effects, sold in May 2026 against an estimate of £4,000 to £6,000 for £7,300 at hammer. The row is illustrative rather than a particular sale. Put it through the rates in the auctions guide: commission at 15 percent, VAT on the commission, a £5 lotting fee and insurance at 1.5 percent. The room also charges photography and cataloguing per lot, which the table below leaves out.
| Line | Amount |
|---|---|
| Hammer total, 42 lots | £7,300 |
| Seller’s commission at 15 percent | −£1,095 |
| VAT on the commission | −£219 |
| Lotting fee, 42 lots at £5 | −£210 |
| Insurance at 1.5 percent | −£110 |
| Received by the estate | £5,666 |
On those four lines the same £7,300 taken by a single lot would cost £205 less to sell, and the £205 is the 41 extra lotting fees. Put photography and cataloguing back in and the 42-lot entry falls further behind again. Ask what the per-lot charges are and whether they are waived on box lots before the entry is signed, because a house of low-value furniture is where that line stops being trivial.
The figure HMRC wants is the gross hammer price
Executors net the charges off before they write a number on the form, and the inheritance tax manual closes that off in a sentence. HMRC’s guidance on how it values household goods states that “any costs incurred after the date of death are administration expenses and therefore not deductible”, and then defines the figure exactly: “The auction sale price is the gross proceeds of sale (or hammer price) before deduction of commission and insurance and without addition of any buyer’s premium.”
On the farmhouse above the estate banked £5,666 and the schedule takes £7,300.
The same page explains why a saleroom result carries the weight it does: “Generally, sales after the death, particularly those at auction, provide the best evidence of the open market value at the date of sale.” A sale months after the death is evidence of the value on the day it sold, which is why the manual goes on to contemplate an adjustment for movement in the market between the two dates.
HMRC also reads the contents figure against the house it came out of. Its instructions for investigating the schedule tell the caseworker to be satisfied that the value “seems consistent with the value and nature of the deceased’s main residence, the estate as a whole and the taxpayer or agent’s comments”. A large house returned with £400 of contents invites the question, and a sale answers it. Which box each figure belongs in is set out in the IHT407 guide.
When the sale and the schedule disagree
Two reliefs exist for an estate whose assets fall in value after the death, and neither reaches household goods. Form IHT35 recovers tax on qualifying investments, meaning listed shares, securities and authorised unit trusts, sold at a loss within 12 months. Form IHT38 does the same for land and buildings sold at a loss within four years.
Chattels have no equivalent. A dining suite entered on the schedule at £600 and knocked down at £90 leaves the tax computed on the £600.
The other direction is the one HMRC pursues. An item entered low that sells high invites the caseworker to substitute the sale figure, and where no inheritance tax was due the uplift reaches the beneficiary as a capital gain instead, since the probate figure is their base cost. Chattels sold for £6,000 or less fall outside capital gains tax, which absorbs most of a house and none of a good picture.
Both directions are answered by a valuation done on the right basis before anything moves, which the probate valuation guide sets out, rather than by a claim afterwards.
What the saleroom leaves behind
A valuer accepts what the room can sell and declines the rest, and the rest is most of the house: beds, white goods, fitted furniture, ordinary china, books by the shelf. The van leaves and the house is still full.
Book the clearance for after the collection, not before, and get the quote once the saleable contents have gone, because the two prices are different. Anything the saleroom declined goes on the clearance van with nothing lost. Anything it declined that the family thinks is worth something goes to a second saleroom for an opinion first, in the order the house clearance guide works through the rooms.
