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17 September 2026
Exchange of contracts and completion often happen in short succession, when a transaction relating to residential property is about to be finalised.
While they are linked together, the date of exchange and the date of completion have different implications for the conveyancing process.
Understanding the difference can help sellers and buyers better plan their move, protecting their sale from any eleventh-hour adjustments.
The exchange of contracts happens when the buyer and seller have signed on the dotted line and conveyancers have exchanged their contract documents.
At this stage, the agreement has become legally binding and the deposit is paid to the seller.
The exchange of contracts typically happens in advance of the completion date, which is when the transaction will be finalised and the keys handed to the buyer.
With both contracts exchanged, pulling out of the agreement at this stage can lead to legal and financial consequences, including losing the full value of a deposit.
Before contracts are exchanged, solicitors can help carry out property searches and enquiries, identifying any issues before you become committed.
Following the exchange of contracts, the completion date involves the remaining funds being transferred to the seller, the keys changing hands and the ownership officially being turned over.
Completion is the stage where a buyer takes full ownership and the seller is unable to access their old property.
Before contracts are exchanged, solicitors can help carry out property searches and surveys, identifying any issues before you become committed.
While exchange and completion can take place on the same day, there are a lot of risks associated.
A so-called ‘simultaneous exchange’ means no party is legally bound to the move until the day the exchange and completion are scheduled.
Either the seller or buyer can withdraw from the deal without any financial or legal exposure, so neither side is protected from last-minute chaos.
It is likely that a long transaction chain wouldn’t be amenable to a simultaneous exchange, as they are also at risk of significant disruption and financial loss.
While there is no magic formula when it comes to coordinating exchange and completion, the recommended interim is typically one to two weeks.
The gap gives people enough time to arrange removals, complete the final legal and financial checks and pack your boxes.
Until these dates have been set, both parties remain at risk of last-minute changes and losing money and time they’ve invested in the move.
A solicitor can help organise the transaction timeline and manage property chains to help minimise financial risk to buyers and sellers.
They can ensure the financial and administrative checks are conducted seamlessly, ironing out any last-minute problems that could disrupt completion.
We can help ensure contracts are legally binding and help coordinate with other parties in the transaction chain to resolve any issues from exchange to completion.
