If you want to unlock some of the value in your home, you do not necessarily need a separate secured loan. For many UK homeowners, the first comparison is a further advance vs remortgage. Both provide potential access to extra cash, but they treat your existing mortgage deal differently. The key question is what happens to the mortgage you already have, including its rate and any exit penalties.
What changes with each option?
Further advance: borrow more from your current lender
A mortgage further advance is additional borrowing from your existing lender. The extra amount is secured on your property, usually at a separate interest rate and sometimes over a different repayment term. Your original mortgage deal can normally continue, subject to the lender’s conditions.
This can be appealing if your main mortgage has a favourable fixed rate that would be expensive to replace. However, the additional borrowing may have a higher rate, and approval is not automatic.
Remortgage: replace your current mortgage
Remortgaging usually means moving to another mortgage lender while staying in your home. To release equity through a remortgage, your new loan covers the existing mortgage balance plus the additional amount, subject to charges and fees. The new interest rate generally applies to the entire balance.
You could find a competitive deal elsewhere, but switching early may trigger an exit penalty. Changing deals with your existing lender is usually called a product transfer, rather than a remortgage to a new lender.
Further advance vs remortgage: compare the real costs
Interest rates and the existing deal
With a further advance, you may have two mortgage parts charged at different rates. With a remortgage, a replacement rate usually applies to the combined borrowing. An attractive remortgage rate may still cost more if it replaces a particularly cheap existing mortgage.
Compare monthly payments, total interest and the repayment term. Extending a loan over more years can lower monthly payments but increase the overall interest bill. For a fair additional borrowing vs remortgage comparison, use equivalent time periods and include the cost of the existing balance.
Fees and early repayment charges
A further advance might involve a product or valuation fee. A remortgage can involve arrangement, legal and valuation costs, although some deals cover certain expenses. Ask for figures rather than assuming either route is free.
Check whether you face an early repayment charge, or ERC, for leaving your existing deal. This can be substantial during a fixed or discounted rate period and may outweigh a seemingly better new rate. Your lender can provide the exact amount and the date it ends.
Affordability and loan-to-value
Both options usually require affordability checks covering income, regular spending, other debts and the proposed repayments. Lenders may also reassess the property value and credit history. Having equity does not guarantee that you can borrow against it.
Loan-to-value, or LTV, measures total mortgage debt against the home’s assessed value. Higher borrowing means a higher LTV, which can restrict available rates. If property prices fall, you may also have less equity left when you next refinance.
A worked example: keeping a low fixed rate
Suppose your home is worth £300,000 and your mortgage balance is £170,000. You want £50,000 for an extension. Your current LTV is approximately 57%; adding £50,000 would increase it to about 73%, excluding fees.
Your fixed-rate deal has two years remaining. If repaying the existing mortgage early triggers an illustrative 3% charge on £170,000, that means £5,100 before remortgage fees. Three per cent is just an example; your actual charge depends on your contract.
Ask your lender for a £50,000 further advance quote that leaves the original £170,000 deal in place. Then compare a £220,000 remortgage, factoring in the £5,100 charge, switching fees and repayments. A lower quoted remortgage rate does not necessarily make the switch cheaper.
Now change one detail: your fixed deal ends in three months. Waiting until the ERC expires could make a remortgage far more attractive. Timing can be as important as the headline rate.
When each option might suit you
Reasons to consider a further advance
A further advance is worth investigating if your existing deal is competitive, an ERC is high or you want to preserve your original rate. The application stays with your present lender, though processing times and eligibility rules vary.
Ask whether the extra borrowing has a different fixed-rate end date. Two mortgage parts expiring at different times can complicate future refinancing if one would still incur a charge when the other ends.
Reasons to consider a remortgage
Remortgaging may be attractive if your current deal is ending, the further advance rate is uncompetitive or another lender offers better terms on the combined balance. It is also an opportunity to review your repayment period and mortgage features.
Be cautious about increasing mortgage debt to repay credit cards or personal loans. A lower interest rate over a much longer term can mean paying more overall, and converting unsecured borrowing into mortgage debt puts your home at risk.
How to compare mortgage options fairly
First, ask your current lender for your outstanding balance, fixed-rate expiry, precise ERC and a written further advance illustration. Check arrangement fees, permitted uses for the funds and whether the new borrowing can have a shorter term.
Next, obtain remortgage illustrations for the full amount required. Compare how much cash you actually receive after fees, monthly payments, interest costs, rate-change dates and the total repayable over comparable periods. A regulated mortgage adviser can help assess eligibility and costs.
Before applying, it can help to read more about mortgage loan-to-value ratios, early repayment charges and secured versus unsecured borrowing. Understanding these details makes apparently similar offers easier to distinguish.
Frequently asked questions
Is a further advance cheaper than remortgaging?
Not necessarily. It may protect a low existing rate and avoid an ERC, but the new portion might have higher interest or fees. Compare the cost of the entire mortgage arrangement.
Can I release equity without changing lenders?
Potentially. Your existing lender might approve a further advance if you meet its affordability, valuation and lending criteria. The amount and terms are not guaranteed.
Can I release all the equity in my home by remortgaging?
No. The available amount depends on the lender’s maximum LTV, your affordability, the property’s valuation and what you already owe. Fees can also reduce the cash you receive.
Is this the same as later-life equity release?
No. Standard further advances and repayment remortgages differ from specialist later-life equity-release products, such as lifetime mortgages, which have different eligibility and repayment features.
Making the decision
The strongest option depends on the rate and conditions you would be giving up. A further advance can protect a good existing deal; a remortgage may work better near its expiry or where whole-loan savings outweigh switching costs.
Request personalised illustrations before choosing. Look beyond the interest rate to your total repayments and remaining equity. With either option, failing to keep up repayments on a loan secured against your home could ultimately put the property at risk.
