Tool 5 — Auction cost calculator
The true all-in cost of buying at auction.
Hammer, buyer's premium, stamp duty, legal fees and optional bridging — all live. Compare UK auction houses side by side.
- Live breakdown
- 4 auction houses
- Max-bid reverse calc

The calculator
Hammer price in, all-in completion cost out
Adjust the hammer figure, surcharges and finance — the line-by-line cost (buyer premium, SDLT, legals, bridging) updates as you move. Reverse-calc your max bid against a budget.
Auctioneer
Tax region
Additional property?
Bridging finance?
Live breakdown — Bond Wolfe
- Hammer price£0
- Bond Wolfe buyer's premium£0
- Legal pack admin£0
- Stamp duty£0
- Solicitor fees£0
- Bridging cost£0
- True total cost£0
Hammer + premium + admin + SDLT + solicitor + bridging = £222,277.
Reverse calc
How high can I bid for a target budget?
For an all-in budget of £250,000 at Bond Wolfe, your maximum hammer-price ceiling is £224,000.
Investor? Build a deal pack
Turn these numbers into an investor-ready pack
A branded PDF — comparables, costs, a map and charts — to present a deal or raise finance on. £4.99 a pack, or unlimited for £29.99/yr.