UK conveyancer led walkthrough of exchange of contracts: short BLUF, an exchange day script, five checks to clear, deposit rules and typical timings.
Takes 30 seconds · No obligation · Save up to 75%
UK conveyancer led walkthrough of exchange of contracts: short BLUF, an exchange day script, five checks to clear, deposit rules and typical timings.
PJ Singh
Co-Founder, Conveyancer Plus | Conveyancing Industry Expert
Exchange of contracts is the point where your purchase or sale becomes legally binding. Once your solicitor and the other side's solicitor confirm exchange, you're both committed to the deal, the buyer usually pays a deposit, and pulling out afterwards can mean losing that money or facing a claim for damages.
Before your exchange call, it helps to know exactly what's coming. Here's the essential shape of it:
Exchange of contracts is the formal legal moment when both parties' solicitors swap signed copies of the contract, usually over a recorded phone call, and confirm the terms match. Before this point, either side can walk away. It might cost you wasted survey fees or solicitor time, but there's no automatic financial penalty for changing your mind on a house purchase before exchange.
That protection disappears the instant exchange is confirmed. From that moment, both buyer and seller are contractually bound to complete the transaction on the agreed date. "Binding" here means exactly what it sounds like: a legal obligation you cannot simply step back from without consequence. If the buyer withdraws after exchange, the deposit is typically forfeited to the seller. If the seller pulls out, they can face a claim for damages, and in rare cases, a court order forcing them to proceed. This is precisely why solicitors won't move to exchange until every outstanding query, search, and mortgage condition has been cleared. It's the point of no return, and everyone involved treats it that way.
Your solicitor won't agree to exchange until a specific set of boxes are ticked. Missing even one usually means a delayed exchange date, so it's worth understanding what's being checked behind the scenes.
1. Mortgage offer confirmed. Your lender's formal mortgage offer must be issued and any conditions attached to it satisfied. 2. Searches completed. Local authority, environmental, and other relevant searches need to be back and reviewed, with nothing outstanding that requires further negotiation. 3. Enquiries cleared. Any questions your solicitor raised with the seller's solicitor, about boundaries, disputes, or planning permissions, must have satisfactory answers. 4. Survey reviewed. If a survey flagged issues, you'll need to have decided how to proceed, whether that's renegotiating price, requesting repairs, or accepting the findings. 5. Deposit funds ready. Your deposit needs to be cleared and sitting in your solicitor's client account, not just promised or in transit.
Once all five are confirmed on both sides, your solicitor will contact you to agree a proposed exchange date and time.
Exchange day follows a fairly predictable script, even though it can feel nerve-wracking if it's your first time. Here's the order of events.
1. The exchange call. Your solicitor telephones the seller's solicitor (or vice versa) on a line that's recorded as standard practice. They read out the key terms of the contract to each other, confirming the property address, purchase price, deposit amount, and proposed completion date match on both sides. 2. Copies verified as identical. Each solicitor checks their signed copy against the other's, word for word, to ensure nothing has changed since the last draft. 3. The deposit moves. The buyer's solicitor transfers the deposit from their client account into the seller's solicitor's client account. This is usually the trigger that finalises exchange. 4. Exchange is confirmed. Once the terms match and the deposit has moved, both solicitors formally agree contracts have been exchanged. This is time-stamped and recorded. 5. You're notified. Your solicitor will call, email, or both, to confirm exchange has happened and state the agreed completion date in writing. 6. Coordination begins. Estate agents are told the sale is exchanged, removal firms can be booked with confidence, and key handover arrangements for completion day start falling into place.
Pro Tip: Ask your conveyancer to email you the exact exchange time and a reference to the recorded call or exchange certificate. If a dispute ever arises about when contracts became binding, having that written confirmation in your inbox is worth far more than a vague memory of "sometime that morning".
The deposit at exchange is often a percentage of the purchase price, though the exact figure is set out in your contract and can vary by agreement between the parties. It's the buyer's responsibility to have these funds cleared in their solicitor's client account well before the exchange call, ideally the day before, since same-day bank transfers can occasionally hit delays that jeopardise the whole exchange.
Once transferred, the deposit sits with the seller's solicitor as part payment towards the purchase. If the buyer defaults after exchange, this money is typically forfeited to the seller as compensation. It isn't the only cost to budget for around this stage either. Stamp duty, if applicable, and any mortgage redemption figures for sellers paying off an existing loan need to be accounted for separately, alongside the full costs of buying beyond the asking price.
Ownership does not change hands at exchange. The seller remains the legal owner right up until completion, when funds are transferred and the legal documents needed to transfer ownership are sent. What exchange does create is a binding contractual obligation for the seller to vacate and hand over the property on the agreed completion date, and for the buyer to pay the remaining balance on that same date.
Between exchange and completion, the question of who bears risk if the property is damaged, say by a fire or a burst pipe, depends on what your contract says, though insurers typically expect the buyer to have their own cover in place from exchange onwards. Breach of contract after exchange carries serious consequences: forfeiture of the deposit, a claim for financial damages, or in some cases a court order for specific performance, forcing the sale to go through regardless.
The gap between exchange and completion is commonly 7 to 28 days, though there's nothing statutory about that range. It's simply what both parties agree suits their circumstances. A shorter gap suits a chain that wants speed and certainty; a longer one gives more breathing room for removals, notice periods on rented accommodation, or lenders needing extra processing time.
Same-day exchange and completion does happen, but it demands all funds are cleared, every party in the chain is ready to move simultaneously, and lenders are willing to release funds without the usual buffer. It's more common in simple chains or cash purchases. Where you're part of a longer chain, delays anywhere above or below you can push your own completion date, even after exchange has locked everyone in.
Most delays to exchange trace back to a handful of recurring problems. Knowing them in advance means you can get ahead of most of them.
Pro Tip: Get your paperwork moving early and keep your deposit funds liquid and accessible rather than tied up elsewhere. Chasing your solicitor for updates weekly, rather than waiting to be told, often shaves days off the process.
A little preparation avoids a last-minute scramble. Before your solicitor schedules the exchange call, make sure you have:
Buyers preparing documents for the first time may find it useful to review a broader conveyancing process guide covering each stage from offer to completion.
Completion is where ownership actually changes hands. Your solicitor transfers the remaining purchase funds to the seller's solicitor, and once that money is confirmed as received, everyone in the chain is told completion has happened.
The seller vacates the property and keys are released, usually via the estate agent, though arrangements vary. Your solicitor then registers the transfer of ownership with the Land Registry and, for leasehold properties, notifies the freeholder or managing agent that a new owner is now in place. When you arrive at the property, it's worth checking the condition matches what was agreed, noting meter readings, and confirming any fixtures and fittings listed in the contract are actually still there.
A regulated conveyancer does far more on exchange day than simply read out a script. They verify that deposit funds have genuinely cleared, check the title is clean, confirm every special condition in the contract reflects what you agreed, and make sure the recorded exchange call happens correctly on both sides. This is detailed, procedural work, and it's exactly why using an SRA- or CLC-regulated firm matters: these firms are accountable to a professional body if something goes wrong, which gives you real recourse that an unregulated adviser simply cannot offer.
Understanding what premium conveyancing services typically include helps explain why regulation and experience matter here specifically. Always ask your solicitor for explicit written confirmation once exchange has happened, along with a reference to the exchange record, so you have proof of exactly when you became legally bound.
Get your funds cleared and sitting in your solicitor's client account at least a day before your proposed exchange date. Bank transfers occasionally hit delays that have nothing to do with you, and there's no reason to let a payment processing hiccup derail a date you've been working towards for weeks.
Talk to your solicitor early if you're worried about anyone else in your chain. Silence doesn't fix chain risk, but a quick conversation about realistic timings usually does. And ask for exchange confirmation in writing every time, without exception. If you're not yet working with a conveyancer and want one who'll talk you through this clearly, it's worth finding a vetted, regulated firm before your search and mortgage offer are even finished.
You can use an online service to quickly connect with a regulated conveyancer when you're facing an exchange date and need clear costs, not guesswork. The firms involved are regulated conveyancers offering fixed-fee quotes from the outset, aiming to avoid surprise charges during your transaction. Using vetted conveyancers helps ensure reliable service from known firms when timing matters most.
If you're concerned about mortgage offer conditions or chain issues, having a conveyancer who works efficiently on searches and enquiries can help improve your chances of meeting your target exchange date. Request an instant conveyancing quote now and get matched with a regulated firm ready to take your case on.
Co-Founder, Conveyancer Plus | Conveyancing Industry Expert
PJ Singh is Co-Founder of Conveyancer Plus, bringing over 10 years of expertise in the UK conveyancing and property sector. Previously Group Director of Sales and Marketing at Ackroyd Legal and Head of Business Development at Fitzalan Partners (Homeward Legal), PJ has worked with over 70 SRA-regulated solicitors nationwide. His deep understanding of the property transaction process and client journey makes him a trusted voice in simplifying conveyancing for homebuyers.
Learn how to remortgage your house in the UK with this clear step-by-step guide covering timing, costs, legal fees, and how to save up to 75% on conveyancing.
Discover what transparency in conveyancing really means, where it breaks down, and how to choose a solicitor who keeps you fully informed with no hidden fees.
Learn the essential conveyancing terms every UK home seller must know, from TA6 forms to exchange and completion, to avoid costly delays and legal pitfalls.
Compare prices from trusted local solicitors. No obligation, no hidden fees.