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Second-charge mortgages explained

Jul 28, 2026
Second charge on your home
If you already have a mortgage and are looking to borrow more money, you might come across something called a second-charge mortgage. Whether you want to renovate your home, consolidate existing debts or cover other major expenses, this type of loan may provide a way to access additional funds without remortgaging or changing your existing deal. 

Thinking about a second-charge mortgage? This guide explains how they work, including some of the pros and cons to consider.  

Key takeaways

  • A second-charge mortgage is a loan taken out against your property, alongside your existing mortgage. This means your home is used as security for the loan, so it may be repossessed if you don’t keep up with your monthly repayments.  
  • It is sometimes used when swapping to a new mortgage lender isn’t preferable, for example, to avoid early repayment charges, retain an existing rate, fund home improvements or consolidate debts.  
  • Interest rates are often higher on second-charge mortgages than on existing mortgages. 
  • Availability and terms depend on factors such as your income, credit history and affordability, as well as your property’s equity. Applications are assessed on an individual basis.  

What is a second-charge mortgage?

A secondcharge mortgage is taken out alongside an existing mortgage, often referred to as the ‘first charge’. It lets you borrow against some of the value built up in your home. This value, known as equity, is the difference between your home's current value and the amount you still owe on your first mortgage.

 

The amount you can borrow for a second-charge mortgage generally depends on the level of equity available in your property, as well as factors such as income, existing financial commitments and future affordability.

 

Speak to a qualified mortgage adviser to see whether a secondcharge mortgage is suitable for your circumstances.

How does a second-charge mortgage work?

A second-charge mortgage lets you borrow additional money using the equity in your home as security, while keeping your existing mortgage in place.

 

You make separate monthly repayments to the secondcharge lender, on top of repayments for your first mortgage. Because the lender uses your property as security for the loan, your home may be repossessed if you don’t keep up with repayments.

 

If your property is sold, the firstcharge lender is repaid first. Any remaining proceeds are then used to repay the second-charge lender.

 

Because second-charge lenders are repaid after the first-charge lender, they take on greater risk, as there may not be enough money left from the sale to cover the outstanding loan balance. As a result, interest rates are often higher than those available on first-charge mortgages, although rates and terms can vary.

 

If you apply for a second-charge mortgage, lenders will carry out affordability checks to assess your income, outgoings and ability to repay both mortgages.

Reasons someone might consider a second-charge mortgage

Homeowners may look at secondcharge mortgages for a range of reasons, particularly in situations where changing an existing mortgage isn’t considered appropriate. Some scenarios include:

 

  • Retaining an existing mortgage rate. Where a first mortgage is on a fixed or discounted rate, a secondcharge mortgage can allow additional borrowing without altering the original arrangement.
  • Further advances are unavailable or unsuitable. A further advance involves borrowing more money from your current lender, usually at a different interest rate from your existing mortgage deal. If your lender doesn't offer a further advance, or if it isn't considered appropriate for your circumstances, a second-charge mortgage may provide an alternative way to borrow using your home as security.
  • Avoiding early repayment charges. Taking out a secondcharge loan may allow funds to be raised without incurring fees that could apply if the first mortgage were repaid or changed.
  • Funding home improvements. In some cases, borrowing secured against a property is used to cover the cost of renovations or extensions, which may affect a property’s value over time.
  • Debt consolidation. Some borrowers use secondcharge loans to combine multiple debts into a single repayment. This can result in more debt being secured against the home and may increase the overall borrowing period.

As with other forms of secured borrowing, secondcharge mortgages involve risk. How suitable they are can depend on individual circumstances and lender criteria, so always consult a mortgage adviser first.

Second-charge mortgage eligibility

Eligibility criteria can vary between lenders, but secondcharge mortgage applications are often assessed based on several common factors, including:

 

  • Homeownership and equity. You’ll usually need to own your home and have enough equity available after your existing mortgage and any other loans secured on it.
  • Credit history. Your credit files are typically reviewed to understand how you have managed borrowing in the past. Specific requirements and thresholds can differ by lender.
  • Income and affordability. Evidence of income is usually requested so lenders can make sure you can afford repayments on both the first and second-charge mortgages.
  • Consent from the first mortgage lender. In many cases, the existing mortgage provider needs to agree to a second charge being registered against the property.

Meeting these criteria does not guarantee approval, as lenders assess each application based on individual circumstances.

Pros and cons of second-charge mortgages

There are advantages and disadvantages to second-charge mortgages, such as:

Pros

Cons

Interest rates are typically lower than unsecured loans or credit cards, as the loan is secured against your property

Interest rates are generally higher than first-charge mortgages because the lender takes on more risk

Allows you to release equity without changing or remortgaging your existing mortgage

Your home can be at risk if you fail to keep up with repayments on both mortgages

Can be useful for larger borrowing amounts spread over a longer term

Adds an additional secured debt alongside your main mortgage

How to apply for a second-charge mortgage

The process of applying for a secondcharge mortgage typically involves several stages, although the exact steps can vary between lenders:

 

  1. Initial discussion. Some applicants choose to speak with a regulated mortgage adviser to discuss their circumstances and understand how secondcharge mortgages work. We recommend doing so before deciding, as an adviser can help explain the options available to you and the potential implications of taking on more debt.
  2. Providing documentation. Lenders usually request supporting information, such as proof of income, bank statements, details of an existing mortgage and identification, to review your application.
  3. Property valuation. A valuation may be arranged to confirm the property’s current value and estimate the level of available equity.
  4. Assessment and checks. Applications are generally subject to underwriting, including consideration of credit history, income, outgoings and your future affordability across both the first and second mortgages.
  5. Offer and completion. If an application progresses successfully, a formal offer may be issued. Following legal and administrative checks, the loan is then registered as a charge against the property.

Under Financial Conduct Authority (FCA) rules, advisers must assess suitability and ensure the recommended product is appropriate for your needs and financial situation. If a second-charge mortgage isn’t the right choice for you, they can also advise on alternative borrowing options that might be better suited to your circumstances.

Expert insight: when professional advice may be required

An expert from Barratt Homes said: ‘Whether a secondcharge mortgage is suitable depends entirely on a borrower’s personal circumstances, including their existing mortgage terms, income, credit profile and longterm affordability. In many cases, it’s important to explore all available options to ensure the chosen solution is affordable and sustainable. Therefore, we recommend that customers take advice from a regulated and specialist adviser.’

FAQs about second-charge mortgages

  • It may be possible, as some lenders consider applications from borrowers with low credit scores.  However, this will depend on the type and severity of the credit issues, as well as the value of your home and whether you can afford the repayments.

You can explore our range of new developments to see what’s available with Barratt Homes.

Disclaimer:

This article is for general informational purposes only and does not constitute mortgage advice. We would always recommend that advice is taken from a regulated mortgage adviser regarding your specific circumstances.