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A second charge mortgage is a loan secured against the equity in your home that sits behind your existing first mortgage. Because it is secured against property, rates are typically lower than unsecured personal loans. And because it leaves your first mortgage untouched, it is particularly useful when breaking the existing deal would trigger significant early repayment charges or result in losing a competitive rate.
In 2026, with many homeowners sitting on mortgage deals fixed in 2020 or 2021 at rates below 1.5%, the prospect of remortgaging to access equity means giving up that rate for the full mortgage balance. A second charge borrows only against the additional equity needed, leaving the favourable first mortgage in place. This difference can save thousands of pounds over the remaining fixed term.
Second charges are regulated by the Financial Conduct Authority and governed by the Mortgage Credit Directive. Regulated second charges are for loans on your primary residence. Unregulated second charges exist for investment properties and are governed by different rules.
The most common use. Home improvements funded through a second charge can increase the property value while keeping borrowing costs lower than a personal loan or credit card.
Debt consolidation accounts for approximately 58% of the second charge market. Combining unsecured debts into a secured loan reduces monthly outgoings significantly in many cases, though it converts short-term unsecured debt into long-term secured debt and should be considered carefully.
Business owners who cannot raise further unsecured finance sometimes use a second charge against their home to inject capital into a business. Lenders assess this on the basis of personal affordability rather than business revenue.
Releasing equity from a main residence via a second charge to fund the deposit on an investment property or a second home. This avoids selling or remortgaging the main residence.
Second charge lenders consider two key figures: the Combined Loan-to-Value (CLTV), which is the total of all loans secured against the property divided by its current value, and affordability, based on personal income and existing commitments. Most lenders cap CLTV at 85 to 90%. Your first mortgage balance plus the new second charge must not exceed this threshold.
Affordability is assessed on your full income and outgoing picture, including the first mortgage payment, any other credit commitments, and the proposed new second charge payment. Credit history is assessed, but second charge lenders often have more tolerance for adverse credit than first charge remortgage lenders, making second charges accessible in some cases where a full remortgage would be declined.
We establish the current value of your property, the outstanding balance of your first mortgage, and the maximum you can borrow within the CLTV limit. This gives us the maximum available borrowing before any affordability assessment.
We review your income and all existing commitments to establish what you can borrow on an affordability basis. The two figures, CLTV limit and affordability limit, determine the maximum loan available.
Second charge products are available on fixed, variable, and tracker rates. The term can typically extend to 25 years, though matching it to the remaining term of your first mortgage is often sensible.
We submit the application to the specialist second charge lender. Your first mortgage lender is notified of the additional charge, which is a requirement, though they do not have to approve it in most cases.
The lender values the property and issues a formal offer. Your solicitor handles the legal charge registration alongside any other conveyancing required.
Run the numbers, then talk to us. Our financial calculators cover mortgage repayments, how much you could borrow, stamp duty, bridging finance and rental yield. Results are estimates only and should not be relied on as financial advice.
In most cases, your first mortgage lender does not need to formally consent to a second charge, but they must be informed. Some lenders have a deed of priority arrangement that governs what happens in the event of a repossession. The second charge lender solicitor handles the notification and any required consent process.
Your home is at risk, as it is with any debt secured against it. The second charge lender would be repaid after the first mortgage holder in the event of a repossession, which is why their rates are slightly higher than first charge mortgage rates. The same regulatory protections that apply to first charge mortgages apply to regulated second charges.
Yes. An unregulated second charge on a BTL property is assessed on the rental income position and the equity available. The CLTV threshold may be more conservative than on a residential property.
Second charge lenders typically start from around £10,000. The maximum is constrained by the CLTV limit and your affordability. In practice, most second charges are arranged for between £20,000 and £250,000. Some specialist lenders will go considerably higher for strong applications.
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