Finance / Legal / Mortgages

What happens on Completion Day? A guide to finalising your property purchase

When you’ve spent months searching for your perfect home, dealt with paperwork and negotiated your offer, it’s easy to think the hard work is done. But the final stage – Completion Day – is crucial to securing ownership and being able to move in.

This is the moment when the property officially becomes yours, and you receive the keys to your new home. Yet, despite its importance, many buyers don’t fully understand the process or what can go wrong at this stage. Knowing what to expect and how to prepare can help make the transition into homeownership as smooth as possible.

What is completion day and why is it important?

Completion Day marks the end of the home-buying journey. It’s when the ownership of the property transfers from the seller to the buyer. After months of preparation, this is the day you can officially call the property your own.

Typically, there’s a gap of 7 to 28 days between the exchange of contracts and Completion Day, depending on whether your transaction involves a chain of buyers and sellers. The exchange is when both parties agree on the terms and sign the contract. After this, Completion Day becomes the next key milestone.

The completion day process

The process involves a series of well-coordinated steps. To make the process easier, it helps to understand what happens behind the scenes.

Your solicitors or conveyancers play a crucial role in managing the transfer of funds and making sure everything is in place. They will arrange for the money to be transferred from your account to the seller’s, which finalises the sale. The payment is usually made via bank transfer and your solicitor will confirm with the seller’s solicitor that the money has been received.

Once ready to proceed, they will notify your solicitor, who will then give you the green light to collect your keys. The actual completion time varies and often falls between 10 am and 4 pm. If your property purchase is part of a chain, this can affect the timing. If you’re part of a long chain, delays in one link can delay your own completion time.

Although Completion Day usually happens on a weekday, be prepared for the process to take a little time. You may not be able to move in immediately, as other formalities need to be completed. Having your funds and necessary documents ready ahead of time can help reduce delays.

How recent changes to Stamp Duty Land Tax (SDLT) affect completion timing

As of 1 April 2025, Stamp Duty Land Tax (SDLT) thresholds reverted to their pre-September 2022 levels, ending a temporary tax cut in England and Northern Ireland. This affects the amount of tax property buyers pay. The changes have increased the cost of purchasing residential property for many homebuyers, particularly first-time buyers.

Beyond this, they affected completion timing by creating deadlines that led to surges in transactions and longer conveyancing periods. An imminent tax increase encourages buyers to complete purchases quickly, which can overwhelm the market and cause delays.

Common challenges on completion day and how to avoid them

While Completion Day should be a cause for celebration, there are a few potential pitfalls to be aware of. Delays can often occur if funds aren’t transferred on time or if paperwork is missing. One of the most common issues arises when there’s a delay in the chain. If someone further up the chain isn’t ready to complete, this can hold up the entire process.

In cases where issues arise in the chain, having real estate lawyers liaise with all parties involved can help you stay informed about any potential delays and keep things moving forward. Keep an eye on your bank account to confirm when the funds are being transferred, and don’t hesitate to ask your solicitor if anything seems delayed. If possible, try to ensure that all documents, including proof of identity and deposit receipts, are finalised well in advance. 

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