“We found the house, but ours hasn’t sold yet” is one of the most common binds I hear from clients in a tight market. Bridging finance exists specifically for this situation — but it’s also one of the most misunderstood loan products, and the one most likely to cause real financial stress if the numbers aren’t respected going in.
How a Bridging Loan Actually Works
A bridging loan temporarily lets you hold both properties at once. The lender combines your existing mortgage balance with the new property’s purchase price into one “peak debt,” then reduces it down to an “end debt” once your old property sells and the proceeds pay down the loan.
Interest is usually charged on the full peak debt during the bridging period — sometimes capitalised (added to the loan rather than paid monthly), which feels manageable in the moment but grows the amount you owe if the sale takes longer than planned.
The Number That Actually Matters
Lenders will assess your capacity to service the end debt, not the peak debt — but you still need a realistic plan for the bridging period itself, especially if it stretches past the typical 6-12 month window most bridging products are built around.
Where People Get Burned
The risk isn’t the loan structure — it’s optimistic timelines. If your existing property doesn’t sell within the bridging window, or sells for less than expected, the shortfall doesn’t disappear. It either gets refinanced into a longer-term loan at a higher balance than planned, or you’re forced to accept a lower sale price to close it out under time pressure — exactly the situation you were trying to avoid.
Questions Worth Asking Before You Commit
- Is interest on the bridging period capitalised or paid monthly, and can your budget handle either?
- What’s the maximum bridging term, and what happens if you need an extension?
- What’s a realistic (not hopeful) sale timeline and price for your current property, based on recent comparable sales — not what you’d like it to be worth?
- What’s the fallback plan if the property doesn’t sell in time?
When Bridging Makes Sense — and When It Doesn’t
It makes sense when you have strong equity, a realistic sale price backed by actual market evidence, and genuine confidence in your local market’s selling timeframe. It makes less sense in a softer or slower-moving market, or if the “peak debt” repayments would stretch your budget past comfort even short-term — the whole point is a bridge, not a permanent arrangement.
Frequently Asked Questions
How long does a typical bridging loan last?
Most lenders set a maximum of 6-12 months, though terms vary. Extensions are possible but not guaranteed, and usually come with their own conditions.
Is interest on a bridging loan higher than a standard mortgage?
Often yes, reflecting the higher risk to the lender of two properties and an uncertain sale timeline. It’s worth comparing the total cost against simply selling first and renting temporarily, in markets where that’s realistic.
What happens if my existing property doesn’t sell in time?
You’d typically need to either extend the bridging term (if the lender allows it), refinance the remaining debt into a standard loan, or in the worst case, accept a lower sale price to close out the arrangement under time pressure.
The Bottom Line
Bridging finance solves a genuine, common problem — but it shifts the risk onto your sale timeline and price assumptions being right. Get an honest, evidence-based valuation of your current property before you commit, not an optimistic one.
Related Reading
- The Real Reason: The Renovation That Almost Wrecked a Refinance — another example of timing assumptions catching a borrower out
- Should You Refinance? The Simple Maths That Actually Answers It — relevant once your bridging period ends





