Auction finance is short-term bridging arranged so you can complete an auction purchase inside the usual 28 day window, when a residential or commercial mortgage simply cannot keep pace.
Once the hammer drops you are legally bound. The deposit is due that day and the balance has a hard completion date, most often 28 days later. Fail to complete and the deposit is gone; the seller can also come after you for their losses. That is the problem auction finance is built to solve. A term mortgage is not designed around a 28 day clock.
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How auction finance works
Think of auction finance as bridging with the heavy lifting done earlier. The lender looks at the asset, how much cash you are putting in and how the loan will be repaid, then advances against a first charge in time for completion. Interest only, short term — six to eighteen months is typical — and repaid in one go when you sell or refinance onto a longer facility.
The underwriting order is the opposite of a mortgage. A mortgage starts with income. A bridging lender starts with the property and the exit. That is why a decision can come back in days rather than the weeks a high street application takes.
Get the finance agreed before you bid, not after
Agree terms in principle before auction day, against the lot you are targeting and a ceiling bid. Valuation and conveyancing can then start the moment you win. Starting from scratch on day one of a 28 day timetable is what creates the panic, and it is avoidable if the funding conversation happens first.
The 28 day timeline
- Before the auctionIdentify the lot, download the legal pack and have it reviewed. Agree indicative terms with a lender against your maximum bid. Instruct a solicitor who has handled auction purchases before.
- Auction dayYou bid. If you win, contracts exchange immediately and you pay the deposit, normally 10 per cent, plus the auction house buyer’s premium and administration fee.
- Days 1 to 7Formal application submitted. Valuer instructed and, wherever possible, booked for the first available slot. Solicitors go to work on the legal pack you have already reviewed.
- Days 7 to 18Valuation report returned and the lender issues a formal offer. Legal work runs alongside rather than after, which is what keeps the timetable intact.
- Days 18 to 28Conditions satisfied, funds drawn, completion. The balance is paid and the property is yours.
A minority of lots complete in 14 days, not 28. Read the special conditions in the pack before you bid. A shorter window immediately cuts the number of lenders who can realistically complete.
Traditional auction vs modern method
Buyers mix these two up constantly, and the risk profile is not the same. Traditional auction binds you on the day. The modern method of auction — sometimes labelled a conditional auction — takes a non-refundable reservation fee and then gives you a longer period to exchange and complete.
| Point | Traditional auction | Modern method |
|---|---|---|
| When you are committed | On the fall of the hammer, contracts exchange immediately | On exchange, which happens later in the reservation period |
| Typical timetable | 28 days to complete, sometimes 14 | Commonly 28 days to exchange then a further 28 to complete |
| Paid on the day | 10 per cent deposit plus buyer’s premium | Non refundable reservation fee |
| If you cannot fund it | Deposit lost and you may be liable for the seller’s costs | Reservation fee lost |
| Finance implication | Bridging is usually the only realistic route | A mortgage can sometimes be arranged in time, but rarely comfortably |
What you can buy with it
Most lots reach auction because a mainstream lender will not touch the property as it stands. That is also where the margin lives for an investor who can fund the purchase and the work.
- Unmortgageable residential. Missing kitchen or bathroom, serious damp, fire damage, structural movement, or a house that has sat empty for years.
- Commercial units. Shops, offices, light industrial and former pubs, tenanted or vacant.
- Mixed use. Retail with flats above — a combination plenty of residential lenders decline on sight.
- Land and sites. Consented or not. See our page on land and site acquisition bridging.
- Short lease flats. Often below the unexpired term a high street lender will accept, with a lease extension forming part of the plan.
- Part built or stalled projects. Where the original developer ran out of money or time.
Where the lot needs work before it can be let or sold, purchase and works are often wrapped into one facility. That is covered on our refurbishment bridging page.
What lenders look at
- The security. Type, location, condition and how readily it would sell if the lender ever had to enforce.
- The exit. This is the item they dwell on. Sale or refinance, with evidence behind whichever you name.
- Your contribution. The auction deposit already paid plus any further cash going in. More equity usually means keener pricing and a quicker yes.
- Experience. A first purchase can be funded. A first purchase that is also a heavy conversion is a harder conversation, and the usual answer is a named contractor with a track record.
- Credit history. Adverse credit is not an automatic decline in this market, but it shrinks the panel. Disclose it at the start rather than letting it surface at valuation.
What auction finance costs
Bridging is priced by the month, not by the year, and the advertised rate is only one line on the quote. What matters is the total cost across the months you will actually hold the loan — that is the figure that tells you whether the lot still works.
- Monthly interest. Retained from the advance, rolled up, or serviced from your own cash each month.
- Arrangement fee. A percentage of the loan, usually added to the facility.
- Valuation fee. Paid up front and driven by property type and value.
- Legal costs. Yours and the lender’s. Both sides need to move quickly, so instruct early.
- Exit or redemption fee. Charged by some lenders and not others. Worth comparing, because on a short hold it can outweigh a slightly lower monthly rate.
Run your own numbers through the bridging loan cost calculator so you can see the total cost across different hold periods before you lock in a maximum bid.
Build the finance cost into your bid, not into your profit. The usual error is bidding up to what the property is worth and treating interest and fees as something to absorb later. Interest, fees and the buyer’s premium all belong inside the maximum bid you set before you walk into the room.
Exit routes
Every bridge is underwritten against repayment. For an auction purchase there are two exits a lender will treat as credible, and they will want evidence for the one you choose.
| Exit | How it works | Evidence a lender expects |
|---|---|---|
| Sale | Refurbish and sell on the open market, or sell on as is | Comparable sold prices, a realistic marketing period built into the term, an agent’s appraisal |
| Refinance | Move onto a buy to let or commercial mortgage once the property is lettable and the works are signed off | Rental appraisal, an indicative term lender who will take the asset, works schedule with realistic dates |
If the plan is refurbish, let and refinance, model the cycle before you bid. Our BRRR calculator runs purchase, works, end value and the refinance together, and the buy, renovate, rent, refinance guide sets the strategy out in full.
Why auction deals fall over
- The legal pack was not read. Restrictive covenants, broken title, a short lease, an occupied property or a shortened completion period all change the funding position. All of that is in the pack before you bid.
- The valuation came in under the bid. Lending is against valuation, not against the hammer price. Any shortfall comes from your own funds.
- Finance was arranged after the hammer fell. It can still be done, but you lose any buffer for a slow valuation slot or a title query.
- The exit was not thought through. Naming a refinance without checking that any term lender will take the finished property is the most common late decline we see.
- The solicitor was not an auction solicitor. A 28 day timetable does not forgive a conveyancer working at ordinary residential sale pace.
Auction finance FAQs
How quickly can auction finance be arranged?
Indicative terms can usually go out within a day or two of receiving the lot details and your figures. Completion then hangs on the valuation appointment and the legal work. Inside 28 days is a realistic target if the valuer is instructed in week one. Agreeing terms before the auction, rather than after it, is what makes that timetable comfortable.
Can I get auction finance with no deposit?
Not in the way most people mean it. You will already have paid the auction deposit on the day, and the lender advances against valuation rather than purchase price. Where an investor has no further cash, the usual route is additional security over another property with equity in it. That is a different structure, not a no-deposit loan.
Is auction finance regulated?
Auction purchases for investment, development or business use sit outside the regulated mortgage regime, and that is the work we arrange. A purchase where you or a close family member will live in 40 per cent or more of the property is a regulated contract and outside our remit. If you are unsure which side the purchase sits on, tell us the intended use before anything is submitted.
What happens if I cannot complete in 28 days?
Under the traditional method you are in breach. The deposit is at risk, the auction house will normally charge interest on the outstanding balance, and the seller can pursue their losses. Some sellers will grant a short extension for a fee, but that is entirely at their discretion and it should never form part of the plan.
Can I fund the refurbishment as well as the purchase?
Yes. A refurbishment bridge funds the purchase on day one and then releases the works budget, either in arrears against completed stages or in staged drawdowns on larger schemes. The lender sizes the works element against the end value, not the purchase price.
Do you charge a broker fee for auction finance?
Property-secured cases carry an upfront fee and a completion percentage. Both are confirmed in writing before any application goes in. You will not be asked to pay anything that has not already been agreed.
Apply for auction finance
Bidding soon? Get terms agreed first.
Send the lot number, the guide price and your maximum bid. We will come back with indicative terms from the specialist auction lenders on our panel, so you know your funding position before you raise a hand.
Related pages
- Bridging loans and bridging finance
- Refurbishment bridging, light and heavy
- Below market value bridging loans
- Buy to let mortgages for the refinance
Bolton Business Finance Ltd is not authorised or regulated by the Financial Conduct Authority. We arrange non-regulated, business purpose commercial finance only. Any property used as security is at risk if the loan is not repaid.