Glossary · UK
What is Mortgage Offer Expiry?
The fixed validity period, typically three to six months, during which a formal mortgage offer remains open for a buyer to complete their purchase before it lapses and needs to be renewed or reissued.
Full Definition
A mortgage offer is issued by a lender for a fixed validity period, commonly three to six months depending on the lender and whether the property is new-build (new-build offers often run longer, sometimes up to twelve months, to accommodate typically slower build and completion timescales), during which the buyer must complete their purchase in order to draw down the funds on the agreed terms. If a transaction runs later than expected -- because of a slow chain, delayed searches, or a protracted new-build construction schedule -- and completion falls after the offer's expiry date, the buyer typically needs to ask the lender for an extension, which some lenders grant automatically for a short additional period, while others require a fresh affordability assessment and updated documentation, and in some cases a full new application if the buyer's circumstances or the lender's product range have changed materially since the original offer was issued. Because interest rates and mortgage products can change between application and completion, an offer extension or fresh application close to expiry carries the risk that the rate originally secured is no longer available, particularly if the market has moved since the offer was first issued, which is why buyers in a slow-moving chain are often advised to keep their broker updated on progress so any extension can be requested well before the offer lapses rather than at the last moment. A mortgage offer expiring unused does not carry a direct financial penalty in the way missing a deposit deadline can, but a buyer left without a valid offer close to an agreed completion date risks the transaction collapsing, or being forced to renegotiate on less favourable terms if a new product has to be arranged in a hurry.