What is Completion Day?
Completion day is the moment you legally own your new home. It's when the final funds are transferred, the keys are handed over, and you move from being a buyer with a contract to a homeowner with a deed. For most people, it's the most important day in the property transaction.
Before completion, you've exchanged contracts, had your survey done, arranged your mortgage, and negotiated the terms. Completion is where all of that work finishes. It typically happens between one and twelve weeks after exchange of contracts, depending on how quickly both parties want to move things forward.
The whole process sounds simple enough, but there's a lot happening behind the scenes. Your conveyancer is coordinating with the other side's solicitor, your lender is arranging funds, searches are being verified, and countless documents are being prepared. Understanding what actually happens on the day itself will help you feel prepared and reduce unnecessary anxiety.
The Timeline: When Does Completion Happen?
Completion day is almost always a weekday, usually between 9am and 3pm. Most completions happen on a Friday, though Thursday is also common. This gives the money time to clear before the weekend, and it means if anything goes wrong, there are still working hours left to sort it out.
Your conveyancer will tell you the exact time, usually a few days before. They'll coordinate with the seller's conveyancer to agree on a time that works. Once that time is set, it's locked in. The seller cannot complete earlier than agreed, and neither can you.
Between exchange of contracts and completion, timescale varies significantly. A quick completion might happen within a week, especially in an urgent chain situation. A typical completion takes 2 to 4 weeks. In slower property markets, it can stretch to 8 weeks or more. When house prices were climbing rapidly and mortgage rates were lower, rushed completions were common. Today, with the Bank of England base rate at 3.75% and average five-year fixed rates around 3.97%, lenders are slightly more cautious, which can add a few days to the timeline.
Your conveyancer will guide you on timescale expectations based on local conditions and the specifics of your chain.
What Actually Happens on the Day
For the Buyer
On completion day, you won't actually need to do much. Most of the work happens between your conveyancer and the seller's conveyancer. However, here's what's taking place.
Your conveyancer needs to have your money ready. This is usually your mortgage advance plus your deposit and any other funds you're contributing. This money sits in the conveyancer's client account. They won't release it until they've received confirmation from the seller's conveyancer that all the final documents are in order.
Early in the morning on completion day, the seller's conveyancer checks that all searches have come back clear, that the title documents are in order, and that there are no last-minute issues. They prepare the final paperwork including the transfer deed. Your conveyancer reviews everything on your behalf. Only once both conveyancers are satisfied does the money move.
Your conveyancer sends the funds to the seller's conveyancer, usually by electronic transfer. This is a large amount of money. The UK average house price sits at around £270,259, so most buyers are moving six figures. The seller's conveyancer receives this money and confirms receipt. Only then does your conveyancer confirm to you that completion is complete.
The seller's conveyancer discharges any mortgages on the property from the sale proceeds, pays the estate agent fees (if using one), settlement various bills and taxes, and hands over the remaining funds to the seller.
Once completion is confirmed, the keys are released to you. In some cases, you'll collect them from the estate agent's office. In others, they're held at the property or sent directly to you. Your conveyancer will arrange this.
You can now enter the property as the owner. You're entitled to take occupation at this point, though you don't have to move in immediately if you don't want to.
For the Seller
The seller's role is mostly passive too, but they need to be available. They must ensure the property is empty and in the agreed condition by completion time. Any fixtures and fittings you've agreed to include must be there. Utilities should still be connected and functioning until the exact moment of completion.
The seller receives notification that completion has happened, usually via their conveyancer or estate agent. They then receive their net proceeds from the sale. If they've got a chain and need to complete on their purchase on the same day or shortly after, timing is critical. A good estate agent manages this choreography, ensuring chains complete in the right order so nobody is left without a home or stranded with two properties.
After completion, the seller must vacate the property entirely. They lose all rights to it from that moment.
Key Things That Must Happen Before Completion
Search Results Must Come Back Clear
Your conveyancer carries out searches on the property. These include local authority searches, water and drainage searches, and environmental searches. All of these must come back clear with no red flags. If something concerning shows up late in the process, it can delay completion or even derail the sale. A good conveyancer flags issues early and discusses implications with you so you're not surprised days before completion.
Your Mortgage Must Be Formally Approved
Your lender needs to have issued a formal mortgage offer and confirmed they're happy to lend. They'll have done their own valuation and checks. Your conveyancer will liaise with your lender to confirm funds will be available on completion day. If you've had any changes to your employment, credit, or circumstances since your original mortgage agreement in principle, these need to be disclosed and approved.
The Title Documents Must Be Examined
Your conveyancer reviews the seller's title deeds to confirm they actually own the property and have the right to sell it. This is more straightforward for registered properties (which most are), where the Land Registry holds the official record. For older unregistered properties, it's more complex and can take longer.
The Transfer Deed Must Be Prepared and Agreed
The transfer deed is the legal document that transfers ownership from seller to buyer. This must be carefully prepared, reviewed, and agreed by both conveyancers. It includes specific details about the property, the buyer, the seller, the price, and what's included in the sale.
Outstanding Disputes Must Be Resolved
If the survey revealed issues, negotiations about remedies or price reductions must be finalised. If there's a dispute about what's included in the sale (certain garden items, for example), this must be settled. Conveyancers won't complete if there are unresolved disputes.
Costs to Budget For on Completion Day
Completion day itself doesn't involve new payments if you've budgeted correctly. However, various costs come due around this time, and your conveyancer needs to account for all of them in the completion statement.
Stamp Duty Land Tax (SDLT). This is a tax on property purchases above certain thresholds. Rates vary by property value and whether you're a first-time buyer. For example, on a property worth £270,000, a non-first-time buyer would pay SDLT. Your conveyancer calculates this and includes it in your completion money requirement. It must be paid to HMRC before or on completion day.
Conveyancing fees. Your conveyancer's fee is typically between £1,000 and £2,500 depending on the property price and complexity. This is usually paid on or before completion.
Land Registry fees. The cost to register the property in your name at HM Land Registry depends on the purchase price. It ranges from around £40 for properties under £40,000 to several hundred pounds for expensive properties. Your conveyancer pays this from the funds you've given them and includes it in the completion statement.
Searches and enquiries. The various searches cost between £200 and £400 in total. Again, your conveyancer has already paid these and recovers it from your completion funds.
Your mortgage arrangement fee. If you're paying an arrangement fee to your lender, this is typically deducted from your mortgage advance before funds are released.
Your conveyancer will give you a detailed completion statement several days before completion day, showing exactly how much you need to provide and breaking down all these costs. This prevents any surprises.
What Can Go Wrong on Completion Day
Most completions happen smoothly, but occasionally things go wrong. Being aware of potential issues helps you understand why your conveyancer insists on certain things and why they need confirmations in writing.
The Buyer's Funds Don't Arrive
If you've arranged to transfer funds from another account and the transfer fails or is delayed, completion can't happen. This is rare but possible, especially with international transfers. Always allow extra time for any money transfers, and confirm with your conveyancer that funds have actually arrived in their account. Don't assume a transfer has cleared just because your bank says it's sent.
The Seller's Mortgage Lender Won't Discharge
Occasionally a seller's mortgage lender drags its feet in providing a redemption statement or delays confirming the mortgage can be discharged. This is frustrating because it's not the seller's fault. Your conveyancer should chase this aggressively well before completion day. Experienced conveyancers with good lender relationships can usually get these sorted, but it can delay things.
A Search Result Comes Back with an Issue
A contaminated land search, a local authority search showing ongoing works, or an environmental issue can suddenly appear. If it's minor, it might just need a note on the files. If it's serious, you may need to renegotiate or pull out. This is why it's critical to get searches back early and not wait until the last minute.
The Seller Gets Cold Feet
Rarely, a seller attempts to pull out on or just before completion day. Once contracts are exchanged, this is a breach of contract and you can take legal action. But it's still stressful and can delay completion while lawyers get involved. This is another reason why exchange of contracts is so important, it makes the sale legally binding.
The Buyer's Mortgage Offer Expires
Mortgage offers are typically valid for 6 months. If completion hasn't happened by then and no extension has been agreed, the lender can withdraw their offer. This is rare in short chains, but in longer chains where completion is delayed, it can happen. Your conveyancer will monitor this and flag it if there's a risk.
How to Prepare for Completion Day
Organise Your Finances Well in Advance
Know exactly how much you need to provide by completion day. This isn't just the purchase price, it's purchase price plus all the costs mentioned above, minus your mortgage. Your conveyancer will tell you the exact figure. Arrange this money well in advance. Don't wait until the day before to make transfers. Ideally, have it in your conveyancer's client account at least two working days before completion.
Get Your Mortgage Offer Confirmed
Make sure your lender has formally issued your mortgage offer and is ready to release funds. Don't assume this is automatic. Chase your lender if needed. If any of your circumstances have changed since your initial agreement in principle, disclose them immediately rather than hoping they won't notice.
Review the Completion Statement Carefully
Your conveyancer sends you a completion statement a few days before. Read it thoroughly. Check the property address is correct, the price is right, and all the costs make sense. If anything looks wrong, query it immediately. Don't just assume it's correct because it came from a professional.
Organise Your Move
Book your removal firm well in advance, ideally weeks before. Completion day is the absolute earliest you can move in, and your removal firm needs to be ready. Some people arrange completion for the end of the week to give themselves time to move over the weekend. Others arrange it for a Monday to get moving over the weekend before. Either way, sort this early. A good estate agent can advise on typical moving timescales in your area.
Arrange Your Utilities
Contact your new property's suppliers to arrange transfer of electricity, gas, water, and broadband. Some of these take several weeks to set up, especially broadband. You don't want to complete on the property and then wait three weeks for your internet to be connected. Most suppliers can arrange the changeover for a specific date. Ask them to set it up for your completion date or very soon after.
Plan to Be Available
You don't need to be physically present at completion, but it's good to be available by phone or email. If something goes wrong in the morning and your conveyancer needs to ask you a quick question, you want to respond immediately. Avoid being in the middle of something stressful when completion is happening. Stay near your phone and email.
Understand the Chain (If There Is One)
If you're in a chain where your seller is buying somewhere else, and their seller is buying somewhere else, and so on, completion timings are choreographed very carefully. The chain completes from the bottom up. The person at the bottom completes first, then the funds move up the chain. Your conveyancer manages this with the other solicitors involved. You don't need to do anything, but understanding it helps you see why timing is so important.
After Completion: What Happens Next
Once completion is confirmed, you're the legal owner. Here's what happens in the hours and days after.
Keys Are Released
You collect the keys from wherever they're being held, usually the estate agent's office or your conveyancer's office. In some cases, they're at the property itself. You're now entitled to access and occupy the property.
You Register the Mortgage
Your conveyancer submits the mortgage deed to HM Land Registry so the lender's charge is registered against the property. This happens automatically and you don't need to do anything, but it's important because it protects the lender's interest.
The Property is Registered in Your Name
Your conveyancer submits the transfer deed to HM Land Registry. Land Registry then updates the register to show you as the new owner. This takes a few weeks. You'll eventually receive your title documents and a title plan showing what you own.
Council Tax Bands Are Updated
The local authority updates council tax records to show you as the liable person. You'll receive your first bill from them for the new tax year. Until then, the seller remains liable.
You Move In
You move your belongings in. Don't forget to change the locks if you want to, and set up all your utilities properly. Update your address with banks, insurers, employers, and any other organisations that need to know.
You Get Buildings Insurance Confirmation
If your lender required buildings insurance (which they will), confirm this is in place and running from completion day. You can't complete without having buildings insurance arranged.
Completion Day and Mortgage Rates
Your mortgage offer is valid for a set period, usually six months. If completion doesn't happen within that time, your lender can