What Happens on Completion Day? A UK Timeline

Completion day is the day you legally become the owner of your new home and finally get the keys. In practical terms, your conveyancer sends the balance of the purchase money to the seller's conveyancer by bank transfer, and once that money is confirmed as received, the estate agent is authorised to release the keys and the seller moves out. It usually happens between late morning and early afternoon. In short: money moves first, then the keys are yours. This guide gives you a minute-by-minute timeline of the day, explains what can delay it, and includes a moving-day checklist and the tasks to tackle once you are in.

By completion day the hard work is done — contracts were exchanged one to four weeks earlier, which is the point your purchase became legally binding. Completion is simply the moment that binding contract is carried out.

What is completion day?

Completion is the day ownership of the property legally transfers from the seller to you. It is the final step of the purchase: the outstanding balance of the price is paid, the seller vacates, and you take possession. It happens on a date fixed at exchange of contracts, so everyone in the transaction — and everyone in the chain — has known for at least a week or two exactly when it will be.

It is worth being clear on the distinction from exchange. Exchange of contracts is when the purchase became legally binding and you paid your deposit. Completion is when the rest of the money changes hands and you actually get the keys and move in. Nothing about the property is yours to enter until completion is confirmed.

Completion day timeline, hour by hour

No two completions are identical, but the day follows a predictable rhythm. Here is roughly how the hours unfold for a typical purchase, remembering that a chain means each link has to complete in turn before the next can follow.

• 8:00–9:00am — Your mortgage lender releases the loan funds to your conveyancer, who combines them with the money you have already provided
• 9:00–11:00am — Your conveyancer sends the balance of the purchase price to the seller's conveyancer by same-day bank transfer (CHAPS)
• 11:00am–1:00pm — If you are in a chain, funds pass up the chain one link at a time; each completion triggers the next
• Midday–2:00pm — The seller's conveyancer confirms the money has arrived and notifies the estate agent that completion has taken place
• Early afternoon — The estate agent releases the keys; the seller must have moved out. You can now collect the keys and move in
• Afternoon onwards — Removals arrive, you take meter readings, and your conveyancer begins the post-completion admin

Many completions finish before lunch, but a longer chain or a late banking transfer can push key release into mid or late afternoon. Estate agents will usually not hand over keys until they have explicit confirmation from the seller's conveyancer that funds have cleared, so try not to book removals for an exact hour.

When exactly do you get the keys?

You get the keys once the seller's conveyancer confirms the full balance has arrived in their account and the seller has vacated. Only at that point does the estate agent — who normally holds the keys — get the green light to release them. You cannot pick them up early, even if the property looks empty, because legal ownership does not pass until the money is confirmed.

In practice this means the afternoon. Aim to collect keys from the estate agent's office, and have a backup plan for your removals van if the release slips later than expected. A short wait on completion day is normal and rarely a sign that anything is wrong.

What can delay completion day?

Most delays on completion day are about timing rather than anything going wrong with the sale itself. The most common cause is a slow bank transfer: same-day CHAPS payments usually clear within a couple of hours, but a late instruction or a busy banking system can hold things up. In a chain, a delay at any single link cascades down to everyone below it, so a hold-up three houses up can push back your key release.

• Late or slow bank transfers between conveyancers
• A delay anywhere in the chain, which cascades to every purchase below it
• Mortgage funds released late by the lender in the morning
• The seller not having fully moved out by the agreed time
• Banking cut-off times — transfers instructed too late in the day may not clear

To reduce your own risk of delay, make sure any money you need to provide reaches your conveyancer at least a day or two before completion, respond quickly to any final requests, and keep your phone to hand on the day so your conveyancer can reach you.

Your completion-day moving checklist

• Confirm cleared funds are with your conveyancer the day before, not on the day
• Book removals for the afternoon and keep the timing flexible
• Take photos of every meter reading (gas, electric, water) the moment you arrive
• Check the seller has left the property as agreed and removed all belongings
• Collect all sets of keys, plus any alarm codes, fobs and window keys
• Note the location of the stopcock, fuse box and meters for future reference
• Keep your conveyancer's and estate agent's numbers to hand all day

What to do after completion

Once you are in, a few important jobs follow — some handled by your conveyancer, some by you. Your conveyancer files your Stamp Duty Land Tax (SDLT) return with HMRC within 14 days of completion and pays any duty due from funds you provided, then registers you as the new owner with HM Land Registry, which can take some weeks to finalise. You do not need to chase these, but it is reassuring to know they are happening.

On your own to-do list: set up your council tax and utility accounts using the meter readings you took, redirect your post, update your address with your bank, employer, driving licence and the electoral roll, and test the smoke alarms. First-time buyers should also confirm whether any stamp duty applies to their purchase — it is worth checking the figure early so there are no surprises.

“Completion day feels dramatic, but by the time it arrives the outcome is already secured — the contract became binding at exchange. The day is really about logistics: money clearing, keys changing hands, and a van turning up on time.”

How completion day fits the wider buying process

Completion is the last legal milestone in a purchase that began with an accepted offer, ran through mortgage approval, searches and conveyancing, and reached the point of no return at exchange of contracts. Understanding where completion sits — and that it is the delivery of a deal already sealed at exchange — takes much of the stress out of the day. Keep the timeline above in mind, prepare your funds and removals early, and completion day becomes a formality to enjoy rather than fear.

This guide is for informational purposes only and does not constitute financial or legal advice. Completion procedures, timings and stamp duty rules vary by transaction and by circumstance — always speak to a qualified conveyancer or solicitor before making decisions.