Second Charges Explained

A second charge mortgage can protect your main deal – but compare the full cost

More homeowners are taking out second charge mortgages, but they are still one of the less understood parts of the mortgage market.

Figures published by the Finance & Leasing Association show £205 million of new second charge lending in June 2026. That was 16% more than in June last year. There were 3,828 new agreements, an increase of 9%.

Across the 12 months to June, lending reached £2.383 billion, up 27% year on year. The figures tell us demand is growing, but they do not tell us that this type of mortgage is automatically a good solution.

A second charge can be genuinely useful. It can also turn short-term borrowing into a long-term debt secured against your home. The difference comes down to why you need the money, what your existing mortgage looks like and how the complete cost compares with the alternatives.

What is a second charge mortgage?

A second charge mortgage is an additional loan secured against a property that already has a mortgage on it.

Your original mortgage remains in place as the “first charge”. The new lender takes the second charge, which means the first lender has priority if the property has to be sold and the debts repaid.

You then have two separate mortgage accounts, potentially with different lenders, rates, terms and payment dates. Both are secured against your home, so failing to maintain the repayments could ultimately put the property at risk.

Why might somebody consider one?

The main attraction is that you can raise extra money without replacing your current mortgage.

That could matter if your existing deal has a competitive fixed rate, a large early repayment charge or borrowing terms you would lose by remortgaging the whole balance. Rather than moving everything to a new lender, the higher rate may apply only to the additional borrowing.

Home improvements are another common reason. Some borrowers may also find that a second charge lender can consider circumstances that do not fit the criteria of their existing lender.

However, a second charge is only one route. Depending on the circumstances, alternatives could include a further advance from your existing lender, remortgaging, an unsecured personal loan, using savings or delaying the expenditure.

Debt consolidation needs particular care

The Finance & Leasing Association says loan consolidation accounted for at least 60% of new second charge business in June.

Consolidating credit cards, personal loans or other borrowing can reduce the number of payments you make. The new monthly payment might also be lower. But lower does not always mean cheaper.

If debt that would have been cleared over a few years is spread across a much longer mortgage term, you can pay more interest overall, even where the new interest rate is lower. You are also changing unsecured borrowing into debt secured against your home.

It is important to understand why the original debts built up. Consolidation may reorganise the balance, but it does not fix an ongoing gap between income and spending. Without a realistic budget and a plan to avoid building the balances again, somebody could end up with the secured loan and new unsecured debt.

The regulator has raised concerns

In March 2026, the Financial Conduct Authority published a review of the second charge market. It found examples of good practice, but also identified cases where affordability assessments appeared to overlook important living costs, customers were steered towards consolidation without enough evidence that it was suitable, and fees were unclear or added to the loan.

This does not mean second charge mortgages are inherently unsuitable. It means the advice and comparison need to be thorough.

The FCA says second charges typically account for less than 4% of regulated mortgage sales and tend to carry higher interest rates than first charge mortgages. A recommendation should therefore be based on the customer’s full position, not simply whether a lender is prepared to offer the money.

What this means for you

If you are thinking about raising money from your property, start by protecting the parts of your existing mortgage that are working well.

Check your current rate, remaining fixed period and early repayment charge. Ask your lender what a further advance would cost. Then compare that with a full remortgage, a second charge and any realistic unsecured option.

Do not compare the monthly payments alone. Look at the interest rate, fees, term, early repayment charges, total amount repayable and what happens if you want to move or repay early. If fees are being added to the loan, remember that you may pay interest on those fees too.

Affordability should be tested against ordinary life, not an unrealistically tight budget. Allow for bills, repairs, childcare where relevant and some breathing space for unexpected costs. A payment that works only if everything goes perfectly is not a comfortable payment.

Three practical takeaways

1. Compare a second charge with a further advance, remortgage and suitable unsecured borrowing before deciding.

2. For debt consolidation, check the total amount repayable and the new term—not just the lower monthly figure.

3. Ask for every fee to be shown clearly, including whether it is paid upfront or added to the loan.

If you are considering borrowing against your home, My Simple Mortgage can help you compare the available routes and understand how each option affects your existing deal. The aim is not simply to find more borrowing, but to establish whether it is sensible, affordable and structured properly.

This article is for general information only and is not personal mortgage, debt, legal or financial advice. Your home may be repossessed if you do not keep up repayments on your mortgage or another debt secured on it.