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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
Knitted character holding a stack of coins next to a UK property auction lot card

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.

£200,000
£20,000£1,000,000

Auctioneer

Tax region

Additional property?

Bridging finance?

6 months
118
0.95%/mo
0.32
£1,500
£0£5,000

Live breakdown — Bond Wolfe

  1. Hammer price£0
  2. Bond Wolfe buyer's premium£0
  3. Legal pack admin£0
  4. Stamp duty£0
  5. Solicitor fees£0
  6. Bridging cost£0
  7. True total cost£0

Hammer + premium + admin + SDLT + solicitor + bridging = £222,277.

Reverse calc

How high can I bid for a target budget?

£250,000
£30,000£1,500,000

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.