What happens if you pull out after exchanging contracts?
You are in breach of a binding contract, and the consequences are substantially more serious than most buyers appreciate — which is precisely why exchange is treated as the point of no return.
What exchange does. Before it, either side can withdraw for any reason at no cost beyond wasted fees. At exchange, contracts become legally binding: a completion date is fixed, and both parties are obliged to complete.
If the buyer fails to complete:
The deposit is forfeited — typically 10% of the purchase price, which is why the size of the deposit paid at exchange matters so much.
A notice to complete is served, commonly giving ten working days, with interest accruing at the contractual rate.
If you still do not complete, the seller can rescind, keep the deposit, resell, and sue for losses beyond it — a shortfall on the resale price, additional costs, and their own chain liabilities.
Your own chain collapses, and if you were also selling, you may be in breach on that contract too, with liability running in both directions.
If the seller fails to complete, the buyer can seek return of the deposit with interest, damages, and in some cases specific performance — a court order requiring the sale to proceed.
The narrow exceptions: a contractual condition not satisfied; misrepresentation, where the seller gave false answers about material matters; and agreement between the parties to vary or rescind, which requires cooperation.
What is not an excuse: changing your mind; a survey you commissioned late; a mortgage offer lapsing, since it was your responsibility to have funding secured; redundancy or illness, however genuine; or discovering something you could have found before exchange.
What actually prevents this: do everything before exchange — survey, searches, enquiries, mortgage offer confirmed and valid, insurance arranged, and funds accessible with no notice period. Never exchange with an unresolved condition you are hoping will be fine.
England and Wales focused; Scotland's system differs, with a binding contract formed earlier. General information, not legal advice.