What Is a Second Charge Mortgage?
The Flexible Funding Option Most Borrowers Overlook
Second charge mortgages—also known as second mortgages—have been around for years, but in 2025, they’ve seen a significant resurgence.
Why?
Because with high remortgage rates, early repayment charges, and greater financial complexity, more borrowers are looking for smarter, more flexible ways to raise capital.
A second charge might be exactly that.
So, what exactly is a second charge mortgage?
A second charge mortgage is a loan secured against your property—on top of your existing mortgage.
It doesn’t replace your current mortgage. Instead, it runs alongside it.
The lender takes a “second charge” on your property, which means:
- Your main mortgage lender has priority if the property is sold
- The second charge lender is next in line
That’s why second charge rates are usually higher than your main mortgage, but often lower than unsecured borrowing.
๐ง When does a second charge make sense?
Second charges are often used when:
โ
You want to raise money
but don’t want to remortgage
โ
Your current mortgage has
low rates or large ERCs
โ
You need capital quickly—for
renovations, debt consolidation, or investing
โ
You’re
self-employed or have complex income that doesn’t fit high street lenders
โ
You want to preserve your existing mortgage but still access
equity
๐งฎ How much can you borrow on a second charge?
Lenders typically allow up to:
- 75%–85% LTV (combined first and second charge)
- Some specialist lenders may go higher on a case-by-case basis
๐ก Example:
- Property Value = £600,000
- Existing mortgage = £300,000
- Max LTV = 80% = £480,000
- Available equity = £180,000
- Potential second charge = up to £180,000 (depending on affordability and credit)
๐ก Common uses for second charges in 2025
๐ง
Home improvements – Raise £50k to add a garden room or extension
๐
Private school fees – Smooth cash flow over a few years
๐ณ
Debt consolidation – Replace high-interest loans with one fixed repayment
๐
Buy-to-let deposit – Use equity in your home to grow your property portfolio
๐งพ
Business capital – For self-employed clients with limited company ownership
๐
Tax bills – Short-term solutions for unexpected liabilities
โ Pros of second charge mortgages
- You keep your existing mortgage and its interest rate
- Often quicker to arrange than a full remortgage
- Can be used for a wide variety of purposes
- Longer terms than personal loans (up to 30 years)
- Larger borrowing amounts than unsecured finance
โ ๏ธ Cons to be aware of
- Your home is still at risk if repayments are missed
- Rates are usually higher than first charge mortgages
- Fewer lenders operate in this space—specialist advice is essential
- Adds complexity to your overall mortgage structure
- Can limit remortgage options later if not structured correctly
Who are second charge mortgages ideal for?
Second charge lending is often ideal for:
๐ Homeowners on a
great fixed deal who want to retain it
๐ทโ๏ธ Self-employed borrowers with
non-standard income
๐ People with a
lower credit score who may not qualify for remortgaging
๐ฐ Borrowers with
substantial equity who don’t want to sell or refinance
๐ง Financially savvy clients who want to leverage equity
strategically
How Willow makes second charges easy
At Willow Private Finance, we:
- Analyse your full mortgage picture
- Run affordability assessments
- Source deals from the full second charge market
- Package the case for fast approvals
- Ensure your first charge lender allows a second (important!)
- Coordinate legal and valuation requirements smoothly
Second charges aren’t suitable for everyone—but for the right client, they can be a brilliant solution.
๐ Want Help Navigating Today’s Market?
Book a free strategy call with one of our mortgage specialists.
๏ปฟ
We’ll help you find the smartest way forward—whatever rates do next.