What are the steps involved in selling a home with an existing mortgage?

Selling a home with an existing mortgage is a coordinated legal and financial process. The main steps are to establish your mortgage position, assess whether the property can be sold on acceptable terms, prepare the legal information, agree the sale, and ensure the lender’s charge is dealt with as part of completion.

1. Review your mortgage documents. Before marketing the property, check the type of mortgage, the current balance, any early repayment charge, exit fee or administration fee, and whether there are other loans secured against the home. A fixed-rate or discounted mortgage may have different conditions from a variable-rate mortgage. Your lender or mortgage adviser can explain which charges apply on a proposed sale date.

Also check whether the mortgage is portable. Porting means transferring the borrowing to another property, subject to the lender’s criteria; it does not automatically remove the need to settle the existing mortgage on the home being sold. If you are buying another property, ask about this before making decisions about timing or finance.

2. Establish your likely equity position. Compare the amount needed to settle the secured borrowing and sale-related costs with a realistic estimate of the property’s value. Costs may include legal fees, estate agency fees if applicable, mortgage charges, removal expenses and fees connected with a replacement mortgage. This calculation gives you an indication of the funds that may remain after completion.

If the expected sale price is lower than the amount required to settle the mortgage and other secured sums, the transaction may be a short sale. In that situation, do not assume that the lender will automatically write off the difference. You may need the lender’s consent, evidence of the proposed value and a separate arrangement for any shortfall.

3. Choose how to sell and set a realistic price. A conventional sale through an estate agent generally involves marketing, viewings, an offer and a buyer’s mortgage and survey process. A direct sale to a cash buyer may use a different process, but you should still compare the proposed price, contractual terms, proof of funds and any deductions carefully. A quick proposed completion is only useful if the legal and mortgage requirements can be satisfied.

Obtain an informed valuation rather than setting the asking price solely by reference to an online estimate. A price that is too high can delay the sale, while a price that does not account for the mortgage balance and transaction costs can leave you unable to complete without additional funds.

4. Instruct a conveyancer. Your conveyancer manages the legal transfer and communicates with the buyer’s legal representative and, where necessary, the mortgage lender. At the outset, explain any circumstances that could affect the transaction, such as arrears, a possession notice, probate, divorce, an absent owner, a second charge or restrictions on the title.

You will normally need to provide identification, property information, guarantees, planning or building regulation documents where relevant, and details of the mortgage and other secured borrowing. Supplying complete information early can reduce enquiries and help identify issues before a buyer is committed.

5. Prepare the property information and title documents. The conveyancer will obtain or review the title register and ask you to complete property information forms. These cover matters such as boundaries, disputes, alterations, rights of way, notices, insurance, utilities and lease terms where the property is leasehold.

For a leasehold home, additional information may be required from the managing agent or freeholder, including service charge accounts, ground rent details, planned major works and building insurance information. Delays in obtaining a management pack can affect the buyer’s legal checks, so it is sensible to request it at an early stage.

6. Accept an offer subject to suitable checks. An offer is not normally binding in England and Wales until contracts have been exchanged. Before accepting, consider more than the headline price: check the buyer’s funding position, chain status, preferred timescale and any conditions attached to the offer. If avoiding delay is important, ask what evidence exists that the buyer can fund the purchase.

In Scotland, the process differs. Offers are handled through solicitors, and an agreement becomes binding when missives are concluded. The conveyancer should explain the relevant procedure and the point at which you become committed.

7. Progress the buyer’s legal and mortgage checks. The buyer may arrange a survey, searches and, where relevant, a mortgage valuation. Their conveyancer will raise enquiries about the property and review the title. You should answer questions accurately and promptly, while referring technical or legal matters to your conveyancer rather than making informal assurances.

Your conveyancer will also check whether the title contains restrictions requiring a consent or certificate before the transfer can be registered. Any discrepancy in names, boundaries or previous alterations should be addressed before exchange where possible.

8. Agree the contract and completion arrangements. The contract records the agreed price, property, parties and proposed completion date, together with any special conditions. Read the contract and completion statement carefully. The statement should show the sale price, professional fees, mortgage-related charges, other secured sums and the amount due to you or required from you.

Do not commit to a completion date without checking practical matters such as removal arrangements, a related purchase, vacant possession and any lender conditions. If you are in arrears or facing possession action, tell the conveyancer so that the timetable and communications can be managed appropriately.

9. Exchange contracts. Exchange is the stage at which the contract normally becomes legally binding in England and Wales. After exchange, withdrawing without contractual consequences can be difficult. Ensure that the lender’s figures, the completion date and any required funds have been checked before authorising exchange.

10. Complete and deal with the remaining balance. On completion, the buyer’s funds are transferred through the conveyancing process. The conveyancer then accounts for the amounts shown on the completion statement, deals with the secured borrowing and transfers any net balance to you. If there is a shortfall, the agreed additional funds or arrangement must be in place so that completion can occur.

After completion, the conveyancer submits the relevant documents to update the Land Registry record. Keep the completion statement, lender confirmation and evidence of any fees paid. If you are buying another home, arrange any new mortgage separately and check whether the previous lender has confirmed that its charge has been released.

Key points to check before starting include:

• the current mortgage balance and all possible repayment charges;
• any second charge, secured loan or restriction affecting the title;
• whether the expected price covers the secured borrowing and selling costs;
• the documents needed for the property information forms;
• the buyer’s funding and proposed timescale; and
• whether extra funds or lender approval are needed because of a shortfall.

Keeping the lender, conveyancer and buyer’s representative informed of material changes is important throughout the transaction. A mortgage does not prevent a sale, but the sale cannot be completed properly unless the secured borrowing and any resulting balance are dealt with in the contract and completion arrangements.