Exchange and completion are two separate events.
Exchange makes the sale legally binding. Completion is when you actually move.
Exchange and completion are usually 1-2 weeks apart, but sometimes happen on the same day. Exchange is when you sign the contract and pay a deposit to lock in the deal. Completion is when you get the keys and move into your new home.
I’ve completed property purchases on the same day as the exchange. Others took months. Standard is usually one to two weeks.
The gap matters hugely. Too short creates stress. Too long creates risk. Getting it wrong costs money.
Since 2015, I’ve navigated every possible exchange-to-completion scenario.
In this guide, I’ll explain what happens between exchange and completion. Why timing matters. What can go wrong. And how to choose the right gap for your situation.
Your circumstances should dictate the timeline.
What Happens at the Exchange of Contracts?
Exchange of contracts makes your house sale legally binding.
Both sides must complete the sale now. You can’t back out without losing money. Your buyer can’t change their mind either. The deal is final.
Buyers pay a 10% deposit at the exchange. Their solicitor holds this money. If buyers pull out, they lose the deposit. This protects you.
Breaking the contract after the exchange costs thousands. Courts can force you to complete or pay damages. The same applies to buyers who try to quit.
You set the completion date at the exchange. Most people choose 1-4 weeks later. Cash buyers can complete the same day.
Building insurance becomes the buyer’s job from the exchange day. They must insure the property, even though they don’t own it yet.
Your solicitor coordinates the exchange with the buyer’s solicitor. They swap contracts by phone, then post signed copies. Everything happens simultaneously.
Check what delays the exchange and conveyancing rules.
Typical Timescales Between Exchange and Completion
The time between exchange and completion can vary depending on your circumstances and the type of buyer involved. Understanding these timescales helps you plan removals, finances, and insurance effectively. Here’s a clear guide to the most common scenarios.
Standard Gap: 7–28 Days
For most traditional property sales, the gap between exchange and completion is typically one to four weeks.
This allows time for mortgage funds to be released, final checks to be carried out, and both parties to prepare for moving.
It provides a balance between efficiency and safety, reducing stress while still giving enough time to organise everything.
If you want more details on typical timescales, see how long it takes to sell a house.
Same-Day Exchange and Completion (Rare but Possible)
In some situations, particularly with cash buyers or very simple sales, exchange and completion can happen on the same day.
This is uncommon but possible when there are no chains, mortgages, or complications involved.
It offers maximum speed and certainty but requires both parties and their solicitors to be fully prepared.
Longer Gaps: 4–12 Weeks for Complex Chains
When multiple properties are involved in a chain, the exchange-to-completion period can stretch to several weeks or even months.
Longer gaps allow time to coordinate with other buyers and sellers, resolve mortgage delays, and carry out additional checks.
While it can add flexibility, longer timescales increase the risk of issues arising along the chain.
Cash Buyer Timescales: Often 7–14 Days
Cash purchases usually complete faster because there is no mortgage to process. Once the buyer’s funds are ready, solicitors can organise the completion quickly, often within one to two weeks. This makes cash offers attractive for sellers who want speed and certainty. Learn more about this process here.
Factors Affecting the Chosen Timescale
Several factors influence the gap between exchange and completion.
Mortgage approval times, property chains, the readiness of both parties, and whether the property is occupied all play a role.
Even things like solicitor availability and public holidays can affect the timeline.
Choosing the right period depends on balancing speed with ensuring everything is properly prepared and legally secure.
What Happens During the Exchange to Completion Period?
The lender sends the final mortgage money to the buyer’s solicitor.
This happens a few days before completion. The solicitor checks that the money arrived. They combine it with the buyer’s deposit and savings.
Solicitors prepare completion statements showing all the figures. These list the price, deposit paid, and money still owed. Both sides check the statements.
Final searches check that nothing changed. Bankruptcy checks confirm buyers can still afford it. Land Registry checks show no new debts appeared.
You sign the transfer deed passing ownership. Your solicitor prepared this document. It goes to the Land Registry after completion.
What happens now:
- Money gets arranged
- Papers get signed
- Keys get ready
- Bills get sorted
Estate agents arrange key collection for completion day. Keys are released after 1 pm usually.
Take final meter readings on completion day. Call utility companies to switch names. Book removal companies weeks ahead – popular dates fill fast.
Your building’s insurance continues until completion. Check completion statements, selling processes, and the Land Registry.
What Happens on Completion Day?
Your solicitor gets the money from the buyer by 1 pm.
Money moves electronically between solicitors. The buyer’s solicitor sends the balance. Your solicitor confirms it arrived. This triggers completion.
Everyone gets told that completion happened. Solicitors tell estate agents to release keys. You get confirmation that the sale is done.
Estate agents give keys to buyers after confirmation. This happens around 1-2 pm. The property legally belongs to the new owner now.
You must leave by the agreed time, usually 1 pm. Take everything with you. Leave the property clean and empty. Don’t forget instruction manuals for appliances.
Completion day:
- Money arrives by 1 pm
- Everyone gets told
- Keys get released
- You must leave
Your mortgage gets paid off. Estate agent fees get taken out. Your solicitor works out what money you get.
The Land Registry gets updated with the new owner’s name. This takes a few weeks.
You get your money the same day or the next working day. Check when the money arrives and the completion rules.
Can You Speed Up the Exchange to Completion Period?
Yes, you can make it faster with the right conditions.
Cash buyers complete the fastest because no mortgage delays happen. Empty properties complete quicker than occupied ones. No tenant problems or final checks needed.
Both sides must be ready and flexible. Time off work arranged. Removal vans booked. Everything is prepared beforehand.
Rushing increases risks, though. Miss something important, and problems happen. Solicitors need time to check everything properly.
What makes it faster:
- Cash purchase
- Empty property
- Flexible people
- Good solicitors
Same-day exchange and completion work with cash buyers. No chains, no mortgages, simple sales are complete the same day. I’ve done this many times.
Busy solicitors struggle with tight deadlines. Experienced conveyancers handle fast sales better.
Property Buyers Today completes in 7-28 days using experienced teams and ready cash. We complete as fast as you need. Check fast selling.
Get Certainty with Our Guaranteed Completion Timeline
I’ll be straight…
Normally, exchange and completion are 1-2 weeks apart in a traditional sale. But it can stretch to months if chains get complicated. If you’d rather have certainty and speed instead of waiting around hoping nothing goes wrong, I totally get that.
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