A soft close solves the sniping problem. In a timed online auction with a fixed end time, the winning move is to bid in the last second so that nobody can respond. That rewards reflexes, not the bidder who values the lot most, and it leaves money on the table for the consignor. With a soft close, any bid placed inside the closing window pushes the lot’s end time back, and the lot stays open until the bidding genuinely stops, as it would in a room.
How it works
An auction house sets two numbers: the closing window and the extension. A common setting is a two-minute window and a two-minute extension. A lot due to close at 7:00 PM that receives a bid at 6:58:30 now closes at 7:00:30. Another bid at 7:00:10 moves the close to 7:02:10. When two full minutes pass without a bid, the lot closes and the highest bid wins.
Maximum bids interact with the soft close in a way that surprises some bidders. If two bidders have left maximum bids, the platform executes them against each other at the moment the second one is placed, not at the close, so the price can jump several increments at once. The soft close only extends when a new bid changes the leading price.
Soft close and staggered closing together
A soft close on a single lot is simple. Across a sale of 800 lots it needs staggered closing, where lots close in sequence a minute or so apart. The two rules work together: lot 41 may extend by four minutes while lot 42 closes on time, and bidders following both can see each clock. Platforms differ on whether an extension on one lot pushes back every lot after it, so check the rule before your first sale; Circuit’s timed auction software keeps each lot’s clock independent.
What to tell bidders
Bidders should see the closing rule on the sale page, a countdown on every lot, and a clear notice when a lot has been extended. Auction houses that explain the soft close in their conditions of sale get fewer “I was outbid after the end time” complaints, because the end time was never fixed in the first place.
