Your agent calls: your buyer's mortgage has been declined. It's the single most common reason sales fall through. One analysis of failed sales in mid-2026 put lending problems behind about a third of collapses. But a declined mortgage doesn't always mean a dead sale.
Step 1: find out exactly why it was declined
The reason decides whether the sale can be saved. Ask your agent to find out which of these it was.
Down valuation
The lender's valuer said your home is worth less than the agreed price, so the lender will lend less or not at all. Can it be saved? Often. See below.
The buyer's circumstances
A change of job, a missed payment, new debts or a credit problem that came up in final checks. Can it be saved? Sometimes, with a different lender or a mortgage broker who knows specialist lenders.
The property itself
Some homes are hard to mortgage: non-standard construction, a short lease, flats above commercial premises, or serious structural concerns. Can it be saved? Possibly with a specialist lender, but the next mortgage buyer may hit the same problem.
Affordability
The lender decided the buyer can't afford the loan, perhaps after rate changes. Can it be saved? Only if the buyer can borrow less or find another lender.
Step 2: your options if it was a down valuation
- Ask the buyer to try another lender. Different lenders use different valuers, and a second valuation may come in higher.
- Challenge the valuation. Your agent can send the lender evidence of comparable recent sales nearby. Lenders don't always change their figure, but it's worth trying.
- Meet in the middle. You reduce the price a little and the buyer adds more deposit.
- Reduce to the valuation. If you suspect the next buyer's lender will say the same, this can be the realistic choice.
- Look for a buyer who doesn't need a mortgage. A cash buyer avoids the lender's valuation altogether.
Be honest with yourself. If one lender's valuer thinks your home is worth less, the next lender may well agree.
Step 3: decide how long to wait
If the buyer is trying another lender, give them a clear, short deadline, often one to two weeks for a decision in principle and a new valuation. Meanwhile:
- Keep your solicitor's work on hold, not cancelled
- Ask your agent to quietly line up back-up interest
- Update your own seller if you're buying. See should I tell my seller.
If the sale can't be saved
Re-market straight away. If the problem was the valuation, think about pricing in line with the evidence. If your onward purchase has a deadline, consider a cash buyer, who has no mortgage to fail. Our 48-hour plan walks you through it.
How Ready Set Sold helps
When a buyer's mortgage falls through, we act as your estate agent and bring in a vetted cash buyer with proof of funds already checked, so there's no lender, no mortgage valuation and no underwriting to go wrong. It's free for you: the buyer pays our sourcing fee on completion.
Frequently asked questions
Can a mortgage be declined after a mortgage offer?
Yes. Lenders can withdraw an offer before completion if the buyer's circumstances change or new information comes to light.
What is a down valuation?
It's when the lender's valuer values your home at less than the agreed price, so the lender reduces how much it will lend.
Should I reduce my price after a down valuation?
Not automatically. Ask the buyer to try another lender and challenge the valuation with evidence first. If several valuations agree, a reduction may be the realistic option.
How long should I wait for my buyer to find another mortgage?
Agree a short deadline, often one to two weeks, and keep your options open in the meantime.
Sources: Q2 2026 fall-through reasons (Newsfile); HomeOwners Alliance: down valuations; Zoopla: what to do if a valuation is lower than the offer.