Your buyer's chain has collapsed three days before exchange. The cottage in Devon you'd offered on goes to the next bidder if you don't complete by Friday week. Your existing house is genuinely sold — but the buyer's mortgage is delayed by another month for an unrelated valuation issue. You stand to lose the cottage entirely. A bridging loan covers the gap. The question isn't whether bridging finance can save the deal. It can. The question is whether it costs you £8,000 or £35,000 in the process — and that depends on three decisions you make in the next forty-eight hours.
Bridging finance in 2026 has stabilised after the post-2022 mortgage rate volatility. Standard residential bridging rates from regulated lenders (MT Finance, Bridge Helps, Together Money, Octopus Real Estate) sit at 0.65% to 0.95% per month — that's 7.8% to 11.4% annualised — with arrangement fees of 1.5% to 2.5% and exit fees of 0.5% to 1% on completion. For a £350,000 bridging loan over three months, you're looking at £6,825 to £9,975 in interest plus £5,250 to £8,750 in arrangement and exit fees. Total cost of bridging that gap: £12,000 to £18,500 typically. That's the real number.
Regulated vs unregulated bridging — the first decision
If the property securing the loan is your main residence, you need a regulated bridging loan from an FCA-authorised lender. Regulated bridging is more transparent on fees, lender must follow MCD affordability checks, and you get a cooling-off period — but rates are slightly higher because of the regulatory overhead. Unregulated bridging applies to investment properties, commercial assets, and any second home. Rates are slightly lower (0.55-0.75% per month at the cheaper end) but the lender protections are minimal — read every line of the offer letter.
The temptation that catches first-time bridging users: an unregulated lender offering a "low rate" bridging facility that's structured against the wrong property. If the bridging loan is secured against your main residence and the lender treats it as unregulated, you have no FCA protection and the lender can foreclose with shorter notice if you miss the exit date. This is the most common cause of forced property sales at bridging exit. The slight rate saving — perhaps 0.10-0.15% per month — never pays for that risk. Always confirm the regulatory status before signing.
The exit strategy is everything
Every bridging loan needs a documented exit — either the sale of an existing property, a refinance to a long-term mortgage, or development completion that releases capital. Bridging lenders care about your exit more than they care about your income, because the loan term is too short for income servicing to matter much. The arrangement fee they charge largely funds the underwriter's review of how realistic your exit is.
The exit risk caught most badly during 2022-2023 when buyers used bridging to secure properties expecting to refinance to a 1.8% mortgage in three months — and the rate environment moved against them. Many ended up extending bridging at higher rates, then forced into discounted property sales to clear the loan. In 2026 the equivalent risk is buyers who plan to sell an existing property within three months, hit a sluggish local market, and find themselves extending the bridge at rolled-up interest. If you can't sell within six months, you shouldn't be relying on a sale-driven bridge.
The headline interest rate is half the cost
The "rate" advertised by most bridging brokers is the monthly interest rate — typically 0.7-0.9%. What this hides: arrangement fees, valuation fees, legal fees, exit fees, and broker fees. Layered together, these typically add 3.0-4.5% to the cost of the loan over a three-month term. A 0.8% per month bridging loan with full fees works out to an annualised effective rate of about 14-16%, not the 9.6% headline figure.
- Arrangement fee: 1.5-2.5% of the loan, paid up-front or rolled into the loan balance. On £350,000, that's £5,250-£8,750.
- Valuation fee: £750-£2,500 depending on property type and location, paid before the loan completes.
- Legal fees: £1,200-£2,800 for the lender's solicitors plus £900-£1,800 for your own solicitor's bridging-specific work.
- Exit fee: 0.5-1% paid when the loan is repaid. Some lenders waive this if the exit is within 60% of the agreed term.
- Broker fee: 1-2% paid to whoever sourced the loan, depending on the broker's commercial model. Cheaper bridging often comes through brokers charging zero broker fees.
When bridging genuinely makes sense in 2026
The chain-saving bridge is the most common use case and the one where bridging makes most economic sense. You've found a property you want, your buyer drops out, you can complete the new purchase with a bridge and pay it off when your existing sale completes. If your existing property is genuinely under offer with sensible buyers, the three-month bridge cost (typically £8,000-£18,000 on a £350,000 loan) is recouped many times over by not losing the new property and not having to start the search again.
Auction purchases are the second classic case. UK property auctions require completion within 28 days, which is faster than any standard mortgage can complete. Buyers use bridging to fund the auction completion, then refinance to a buy-to-let mortgage or a residential mortgage over the next 60-90 days. This works because the bridging facility is in place before the auction, the property is bought at a discount that more than covers the bridging cost, and the exit refinance is well-modelled in advance.
Light development bridging
Small developers and refurbishment investors use bridging to fund a property purchase plus light works (kitchen, bathroom, basic structural). The exit is either a refinance to a buy-to-let mortgage at the new higher valuation, or a quick sale at the refurbished value. This works when the refurbishment cost and timeline are modelled accurately — and fails when it's not. The 2024-2025 wave of bridging defaults at the SME developer end of the market was largely caused by builders underestimating timelines by 4-6 weeks and seeing rolled-up interest erode their margin.
What to ask the broker before you commit
The questions that separate brokers who actually understand bridging from order-takers reading from a comparison sheet:
"What's the exit fee structure if I complete two months early?" Some lenders charge full exit fees regardless. Better lenders pro-rate the exit fee. Worth £1,500-£3,000 difference on a £350,000 loan.
"Is the interest rolled up, retained, or serviced?" Rolled-up means it's added to the balance and paid at exit. Retained means the full interest is deducted upfront and you receive only the net advance. Serviced means you make monthly payments. Each has different cost implications. Rolled-up is most common but increases the final balance significantly.
"What happens if my exit is delayed by 30 days?" Get the extension terms in writing. Standard extension rates are 0.95-1.25% per month, plus typically a 1-2% extension arrangement fee. A four-month extension on a £350,000 loan can add £18,000-£25,000 unexpectedly.
"Are you offering this from your own funding or as a packager?" Direct lenders are accountable for their offer. Packagers route through one of 8-12 funding lines and may switch between offers — that's how the offer letter sometimes changes terms a week before completion.
The alternatives that cost less
Before committing to a bridge, exhaust the cheaper alternatives. A let-to-buy mortgage on your existing property — converting it to a buy-to-let so you can buy the next property — works in many situations, takes 4-6 weeks rather than 1-2 weeks, and costs about a quarter of bridging on annualised terms. The downside is you become a landlord temporarily, which has its own complications.
Equity release on your existing property through a regulated lifetime mortgage is another route — slow but structurally cheaper. So is asking your existing lender to extend your sale completion deadline informally, which sometimes works for established customers. Bridging is the fast and expensive option. It's the right tool only when speed is genuinely worth the premium. Many bridging customers in 2026 would have been better served by a 30-day extension request and a calmer week of planning. Bridging is not the default. It's the rescue.