Exchange of contracts vs completion: The key differences

Key takeaways

• Exchange of contracts makes the sale legally binding: This is the point where both buyer and seller commit to the transaction.
• Completion transfers ownership and funds: On this day, the property officially changes hands, and you receive the keys.
• A gap exists between the two: Typically, a period of 1 to 4 weeks allows for practical arrangements like booking removals.
• Conveyancers manage the legalities: Your conveyancer guides you through both stages, helping everything run smoothly.
• Planning is essential: Coordinate your mortgage, survey, and removals around these key dates to minimise stress.

Moving home involves several significant legal milestones, with exchange of contracts and completion being two of the most important.

Although they are often confused, these stages mark very different points in your property journey, each with its own legal obligations and practical implications. Understanding the difference can help you navigate the process with greater confidence.

What is exchange of contracts?

Exchange of contracts is the point when the buyer and seller become legally bound to complete the property transaction. Until this point, either party can withdraw from the sale, but once contracts are exchanged, backing out usually has serious consequences.

This stage involves both parties' conveyancers exchanging signed contracts, often over the phone. The buyer usually pays a deposit, typically 10% of the purchase price, held by the seller's conveyancer. This deposit acts as a safeguard; if the buyer pulls out after exchange without a valid reason, they risk losing it. If the seller withdraws, they may be legally compelled to sell or face penalties.

Your conveyancer will ensure all searches are complete, mortgage offer is in place, and any special conditions are met before advising you to proceed.

What does completion mean in a house sale?

Completion is the final stage of the property transaction, during which legal ownership of the property officially transfers from the seller to the buyer. On this day, the remaining balance of the purchase price is transferred, and the buyer receives the keys to their new home.

On completion day, your conveyancer transfers the outstanding funds to the seller's conveyancer. Once they confirm receipt, they authorise the release of the keys, usually from the estate agent. Your conveyancer then registers the new ownership with HM Land Registry, making the transfer official. It is a good idea to plan your removals around this date to help ensure a smooth move.

What are the key differences between exchange and completion?

The main difference between exchange of contracts and completion is legal commitment versus the actual transfer of ownership and funds. Exchange legally binds both parties to the sale, while completion finalises the transaction, transfers the property, and hands over the keys.

At exchange, the sale becomes legally enforceable, so neither party can usually withdraw without penalties. The buyer pays a deposit, and a completion date is set. However, legal ownership and possession remain with the seller. At completion, the full purchase price is paid, ownership transfers to the buyer, and the buyer gains physical possession of the property.

How much time is there between exchange and completion?

The period between exchange of contracts and completion is usually 1-4 weeks. However, it can be shorter or longer depending on the property chain and individual agreements. This timeframe allows both parties to prepare for the move.

This gap is essential for practical arrangements. Buyers finalise mortgage details, arrange buildings insurance, and book removals. Sellers pack their belongings and prepare the property for handover. Factors like the property chain length, mortgage lender requirements, and specific requests can influence this timeline. Your conveyancer will advise on a complete timeframe to accommodate all parties.

What happens if a house sale falls through after exchange but before completion?

If a house sale fails to complete after contracts have been exchanged, the defaulting party may face serious legal and financial consequences because the agreement is legally binding.

If the buyer fails to complete, the seller will usually serve a notice to complete, giving them a further period in which to proceed. If the buyer still does not complete, the seller may be entitled to terminate the contract, retain the deposit (usually 10% of the purchase price) and claim compensation for additional losses, such as extra legal costs or a shortfall if the property is later sold for less.

If the seller fails to complete, the buyer may be able to terminate the contract, recover their deposit with interest and claim compensation for their losses. In some circumstances, the buyer may also ask the court to order the seller to complete the sale, although the court will not necessarily grant this request.

These potential consequences are why your conveyancer will carry out thorough checks before advising you to exchange contracts.

Conveyancing: Guiding the process from exchange to completion

Conveyancing is the legal process of transferring property ownership, and your conveyancer is instrumental in managing exchange and completion. They help ensure checks are done, funds are transferred correctly, and legal ownership is properly registered.

Before exchange, your conveyancer conducts property searches, reviews the contract, checks the mortgage offer, and handles legal enquiries. They advise you to exchange only when all conditions are met, protecting your interests. On completion day, they coordinate fund transfers, receive the keys, and register the property with HM Land Registry.

Moving Compared helps you find reliable conveyancers by letting you compare quotes, ensuring expert legal support throughout your move.

Surveys and their impact on the exchange and completion timeline

The buyer typically conducts property surveys before exchange, as findings can affect the decision to proceed or the agreed price. Issues identified can delay exchange if further investigation or negotiation is needed.

A comprehensive survey, such as a RICS level 2 or 3, provides a detailed assessment of the property's condition. If serious defects are found, the buyer may negotiate a price reduction or request repairs. These negotiations can extend the pre-exchange period. Sometimes, a buyer may pull out if the survey reveals insurmountable problems. Completing property surveys promptly and addressing findings is crucial to avoid delays between exchange and completion.

When should you book removals in relation to exchange and completion?

You can start looking for removal companies before exchange; arrange for removal surveys and get accurate quotes to understand the costs of your move, but it is generally safer to wait until contracts have been exchanged before booking. Until exchange, the completion date can change and the transaction could still fall through, potentially leaving you with cancellation or rearrangement fees.

Once contracts have been exchanged, the completion date is legally agreed, so you can choose your removals company and book with greater certainty. It is best to do this as soon as possible after exchange, particularly if you are moving at a busy time of year or there is only a short period before completion.

Final summary

Understanding the distinct roles of exchange of contracts and completion is fundamental to a successful property transaction in the UK. Exchange means committing to buy or sell, while completion marks the transfer of ownership and the moment you get the keys. The period between these two stages is vital for practical preparations, from arranging your mortgage to booking your removals. By using expert conveyancing and planning your surveys and removals effectively, you can navigate these milestones with confidence.

Ready to make your move smoother? Compare quotes for conveyancing, surveying, and removals today with Moving Compared and take the first step towards a stress-free home journey.