Buyer Pulled Out After Exchange? The 2026 UK Seller's Guide

By Lisa Hayes · 28 August 2026

If your buyer pulls out after contracts have been exchanged, they have broken a legally binding contract — and you hold most of the cards. Your solicitor can serve a notice to complete, giving them ten working days to finish the purchase, charge interest on the money they owe you for every day they are late, and if they still don't complete you can rescind the contract, keep their deposit and sue for what the mess has cost you.

That's the legal position. The practical position is messier, and nobody in the industry likes talking about it, because the honest answer to "will I actually get my money?" depends entirely on whether the buyer has any money left. This guide walks through both.

What actually changes at exchange of contracts?

Before exchange, either side can walk away for any reason or none, and it happens constantly. Roughly a quarter of agreed UK sales collapse before completion, and the great majority of those go under long before contracts are anywhere near being swapped. Our guide to exchange of contracts versus completion covers the mechanics of that day in detail.

Exchange changes the legal character of the deal completely. At the moment your solicitor and theirs agree over the phone that contracts are exchanged — traditionally under the Law Society's telephone exchange formulae — a binding contract for the sale of land comes into existence. The buyer acquires an equitable interest in your property. You acquire an enforceable right to be paid the balance of the price on the agreed completion date.

One thing that does not change, and this catches sellers out: under condition 5.1.1 of the Standard Conditions of Sale, the property remains at your risk until completion. Keep your buildings insurance running. If a pipe bursts in the ten days after exchange, that's your problem, not the buyer's.

• 23.7%of agreed UK sales fell through in Q1 2026
• 10working days in a standard notice to complete
• 4%above Barclays base rate — the contract rate
• 10%typical deposit at risk for a defaulting buyer

Can a buyer legally pull out after exchange?

No. They can physically refuse to complete — nobody is going to march them to the solicitor's office — but they cannot do it lawfully, and they cannot do it cheaply. There is no cooling-off period in English and Welsh residential conveyancing. There is no clause that lets a buyer withdraw because their circumstances changed, because they found something they like better, or because their mortgage offer was pulled.

That last one deserves emphasis, because it is the most common cause of post-exchange collapse and the most misunderstood. A mortgage offer is a contract between the buyer and their lender. Your sale contract is between the buyer and you. If the lender withdraws the offer between exchange and completion — because the buyer changed jobs, took out a car loan, or the lender's final checks threw something up — that is the buyer's problem entirely. They still owe you the full purchase price. Their solicitor should have warned them not to exchange until the offer was safely in place.

What is a notice to complete, and how does it work?

Under condition 6.8 of the Standard Conditions of Sale — the standard-form terms in almost every residential contract in England and Wales — either party who is ready, willing and able to complete can serve a notice to complete on the other once the contractual completion date has passed.

Serving it does two things. It gives the defaulting buyer a fixed period of ten working days, excluding the day the notice is given, to complete. And it makes time "of the essence" for both parties, which is the legal phrase that converts a late completion into a repudiatory breach at the end of that window.

"Working days" means what it says: Saturdays, Sundays, bank holidays and Good Friday don't count. In practice a notice served on a Friday afternoon in late December can run well into the following month. Ask your solicitor for the exact expiry date in writing and diarise it.

Two practical points. First, you must genuinely be ready, willing and able to complete yourself — if your own paperwork isn't in order, the notice is vulnerable. Second, serving a notice does not commit you to rescinding. It is a pressure device as much as a legal step, and in a large number of cases the buyer finds the money inside those ten days, often from family. That is exactly what it is designed to do.

How much interest can you charge a defaulting buyer?

Condition 6.3 of the Standard Conditions of Sale entitles the innocent party to compensation for delayed completion, calculated at the contract rate on the purchase price less the deposit already paid, for each day of delay.

The contract rate in a standard residential contract is the Law Society interest rate, which has been published since 1990 and is set at 4% above Barclays Bank base rate. It moves when the base rate moves. Through 2025 and into 2026 it has sat in the high sevens to low eights — 8% from August 2025, then 7.75% from 18 December 2025. Check the Law Society's published figure for the exact rate applying on your dates rather than assuming.

Here is what that looks like on a real transaction. Take a £300,000 sale with a £30,000 deposit paid on exchange. The balance owed is £270,000. At 7.75%, daily interest is £270,000 × 7.75% ÷ 365 = £57.33 a day. Over a full ten-working-day notice period — call it fourteen calendar days — that's roughly £802. Over a month of drift, about £1,720.

It is not a fortune, and it will not make you whole if the sale dies. But it is real money, it accrues automatically without you having to sue for it, and it is deducted at completion if the buyer does eventually turn up. It also concentrates minds.

Do you get to keep the 10% deposit?

Usually, yes — but there are three things to understand before you count it.

1. Stakeholder versus agent

Under condition 2.2.5 of the Standard Conditions of Sale, the deposit is held by the seller's solicitor as stakeholder — meaning neither party can touch it until completion or until the contract is validly rescinded. The exception is where you are using the deposit towards the purchase of another property for your own residence, in which case it can be held as agent and passed up the chain.

This matters enormously if you are in a chain. If your deposit went straight up to the seller above you, and your buyer then defaults, the money is not sitting in your solicitor's account waiting to be forfeited. Untangling it is slow.

2. The court can order it returned

Section 49(2) of the Law of Property Act 1925 gives the court a discretion to order repayment of a deposit where it considers it fair to do so. Sellers are rarely told this. In practice the discretion is used sparingly — in Midill (97PL) Ltd v Park Lane Estates [2008] EWCA Civ 1227 the Court of Appeal upheld the forfeiture of a 10% deposit and made clear that relief under section 49(2) requires genuinely exceptional circumstances. A 10% deposit on a residential sale is treated as the normal, expected commitment. But it is a discretion, not a certainty, and a buyer with a good story and a good solicitor will occasionally get some of it back.

3. It is a floor, not a cap — but it usually behaves like one

Forfeiting the deposit does not stop you claiming further damages, and the deposit is credited against those damages rather than added to them. If your losses exceed 10%, you can claim the difference. If they don't, the deposit is what you get.

What if your buyer only paid a 5% deposit?

Reduced deposits are common, particularly with first-time buyers and buyers using a high loan-to-value mortgage. If your contract was varied to accept 5%, then on the face of it 5% is all you can forfeit.

Except that condition 6.8.3 of the Standard Conditions of Sale deals with exactly this. Where the buyer paid less than the full 10% and a notice to complete is served, the buyer must immediately pay the balance up to the full 10% deposit. That obligation is triggered by the notice. It is another reason not to sit on your hands hoping the buyer comes good.

Check your contract, though. Some contracts amend or delete this condition, and a buyer's solicitor who is on the ball will have tried. If yours was deleted at the negotiating stage, you'll find out now.

What else can you claim from a buyer who walks?

Once you have rescinded, condition 7.5 preserves your right to damages for breach of contract. The measure is what you have actually lost, and you have a duty to mitigate — meaning you must take reasonable steps to limit the damage, typically by remarketing promptly rather than sulking for six months and then billing them for it.

Should you actually sue? An honest answer

Here is where I'll be blunter than most people writing about this.

The law is firmly on your side. The economics often aren't. A buyer who has just torched a 10% deposit is, in the overwhelming majority of cases, a buyer who has run out of money. Judgments against people with no assets are decorative. Litigation over a property contract will cost you five figures before you get near a trial, take twelve to eighteen months, and consume more of your attention than you can currently imagine.

Suing is usually worth it in two situations: where the buyer is demonstrably solvent — a company, a landlord with a portfolio, someone with obvious equity elsewhere — or where your loss is very large and clearly evidenced, typically because you had exchanged on an onward purchase and got hammered.

Otherwise, take the deposit, take the interest, get the house back on the market within a fortnight, and get on with your life. That is not defeatism. It is the calculation your solicitor will make privately even if they don't say it out loud, and it is why so few of these disputes ever reach a courtroom.

Why do buyers pull out after exchange?

Post-exchange collapses almost always come from a short list.

The lender withdrew the offer. Comfortably the most common. Mortgage offers can be withdrawn right up to the moment funds are drawn down. A buyer who changes employer, opens a new credit account, or gets flagged by a final fraud check between exchange and completion can lose their funding overnight.

The chain broke above them. The buyer exchanged on your house but their own onward purchase, or their buyer's sale, collapsed and they can no longer physically move. This is why simultaneous exchange across a chain matters, and why our guide on what to do when your chain collapses exists.

Death, illness or separation. Rare, awful, and legally unforgiving. The contract binds the buyer's estate. Their executors are on the hook. Commercial sense and human decency usually push both sides towards a negotiated release here.

A deliberate attempt to renegotiate. Occasionally a buyer defaults on purpose, hoping you will accept a lower price rather than face the delay. This is gazundering with the gloves off, and it is the one situation where serving the notice to complete immediately and refusing to negotiate until it expires is almost always the right call. Buyers who are bluffing fold. Buyers who genuinely cannot pay were never going to complete anyway.

The first 48 hours: what to actually do

• 1. Phone your conveyancer, don't email. The clock is running at the contract rate from the moment completion was due. You want a same-day conversation, not a reply on Thursday.
• 2. Ask one specific question: "Are we ready, willing and able to complete, and can you serve a notice to complete today?" That phrasing tells your solicitor you know what you are asking for.
• 3. Confirm where the deposit is held — stakeholder or agent, in your solicitor's client account or already passed up the chain. This determines what you can actually forfeit.
• 4. Do not agree to anything on the phone with the buyer or their agent. Not a price reduction, not an extension, not a "let's just tear it up". Every one of those is a variation of a binding contract and should go through solicitors.
• 5. Get the diary date for expiry in writing. Ten working days, excluding the day of service, excluding weekends and bank holidays.
• 6. Start a costs file. Removals, storage, hotel, extra mortgage payments, the lot. If you ever claim damages, contemporaneous invoices are worth more than recollection.
• 7. Speak to your own seller if you are in a chain. Immediately. See below — this is the scenario that genuinely hurts.
• 8. Tell your agent to soft-relist, not hard-relist. Don't drop the price and don't announce the fall-through until the notice expires. Roughly half of these buyers complete inside the notice period.

The nightmare scenario: you've already exchanged on your purchase

If you exchanged on your sale and your onward purchase on the same day, and your buyer then defaults, you are simultaneously the innocent party in one contract and the defaulting party in another. Your seller can serve a notice to complete on you. Your deposit is at risk. Everything I've written above about your rights against your buyer now applies to your seller's rights against you.

You have three routes, in rough order of preference:

Bridging finance. Expensive — typically 0.55% to 1.2% a month plus arrangement fees of 1–2% — but it completes your purchase, keeps your deposit safe, and turns a catastrophe into a cost. If your buyer is ultimately good for damages, that bridging interest is a recoverable head of loss. Read our guide on using bridging loans to break a chain before you sign anything.

A genuine cash buyer for your sale. If you can replace a defaulting buyer inside a couple of weeks, you may avoid rescission on your own purchase altogether. This is the one situation where the speed of a cash house buyer is worth the discount, because the alternative is losing your deposit on the house you actually want. Compare offers rather than taking the first one — see our comparison of the best house buying companies for what a fair offer looks like.

Negotiate with your seller. A short extension in exchange for interest at the contract rate is often acceptable to a seller who doesn't want to relist either. It costs you money but buys you weeks.

What you should not do is nothing. Notices to complete run in both directions, and a seller above you who is losing their own purchase will serve one without hesitation.

What if it's the seller who pulls out after exchange?

For completeness, because sellers reading this sometimes want to know what they'd face if they were the ones walking away.

A seller in breach faces the mirror image: the buyer serves a notice to complete, the seller pays interest at the contract rate, and if the notice expires the buyer can rescind, demand the deposit back with accrued interest, and claim damages for wasted costs and any increase in the price of a comparable property.

The buyer also has a remedy sellers don't: specific performance. Because every piece of land is legally treated as unique, a court can order a defaulting seller to actually transfer the property rather than simply pay compensation. It is a discretionary remedy and it is slow and costly to obtain, but it exists, and a buyer's solicitor will often register a unilateral notice against the title at HM Land Registry to stop you selling to anyone else while the dispute runs. If you are thinking about walking away from a contract you have already exchanged on: don't. Talk to your solicitor about a negotiated release instead.

Does any of this apply in Scotland or Northern Ireland?

Scotland works differently and earlier. The binding point is the conclusion of missives, which typically happens weeks before the date of entry rather than days. Once missives are concluded, a purchaser who fails to pay faces a rescission notice under the terms of the missives themselves, plus interest at the rate specified in the contract. There is no separate "exchange". Our Scottish selling guide covers the sequence.

Northern Ireland broadly follows the England and Wales model of exchange and completion, but uses the Law Society of Northern Ireland's own General Conditions of Sale rather than the Standard Conditions used in England and Wales. The notice periods and interest rates differ. Take local advice.

Four mistakes I see sellers make

Waiting a week to see if the buyer sorts it out. Every day of delay is a day of interest you could have been accruing and a day closer to your own onward purchase collapsing. Serve the notice.

Agreeing a price reduction over the phone. You have a binding contract at the agreed price. The moment you verbally agree to less, you have handed the buyer an argument. Everything goes through solicitors, in writing.

Announcing the fall-through to the market too early. Portals log price and status changes, and buyers read them. A property that goes sale-agreed, falls through publicly, and relists at a lower price signals desperation. Our guide on why houses stop selling explains how much damage a visible price history does.

Assuming the deposit is spendable money. If it's held as stakeholder, it isn't yours until the contract is rescinded. Sellers who have mentally spent it make worse decisions about whether to hold out or settle.

Where does that leave you?

A buyer walking away after exchange is one of the worst things that can happen in a UK house sale, and it is also one of the few where the law gives you real teeth. Serve the notice quickly, let the ten working days do their work, and accept that a meaningful proportion of these buyers do find the money when the alternative is losing 10% of the purchase price.

If they don't, you have a decision to make about speed versus price. Relisting on the open market is usually right if you have time. If you have already exchanged on somewhere else, or the property has been on and off the market and the price history is starting to work against you, a certain completion date is worth more than an optimistic asking price. Get a realistic sense of what your house is actually worth first, then compare offers from several vetted buyers side by side before you commit to anyone. Two or three comparable offers will tell you more about the real market for your house than any amount of guesswork.

And if you take nothing else from this: phone your conveyancer today, not tomorrow.