What is a second charge mortgage?
Heard the term "second charge mortgage" and weren't quite sure what it meant? Let's clear it up in plain English — what it is, why people use one, and how it stacks up against the alternatives.
So, what actually is a second charge mortgage?
A second charge mortgage is a loan secured against a property you already own and already have a mortgage on. Your original mortgage is the first charge. The new loan sits behind it as the second charge — which is where the name comes from.
The important bit: you keep your existing mortgage exactly as it is. The second charge is a separate agreement, often with a different lender, that uses the value tied up in your property as security.
Because it's secured on your home, it's a regulated mortgage contract — so the same kinds of consumer protections apply as with your main mortgage.
Why "second" charge? What the order means
A "charge" is just the legal claim a lender has over your property. If you ever sold up — or if the property were repossessed — the money from the sale pays off the first charge lender before the second charge lender sees anything.
That running order is why a second charge is generally treated as higher risk for the lender than a first charge, and it explains a lot about how these loans tend to be assessed and priced.
In some cases you can even have a third charge behind that — but the principle stays the same: they're repaid in order.
Why do people look at a second charge mortgage?
The usual reason is to raise capital — to borrow more against your home — without disturbing the mortgage you already have.
- You might be on a deal you'd rather not lose, and remortgaging the whole balance could mean giving it up.
- Your current mortgage might carry an early repayment charge, making it costly to leave before the deal ends.
- Your circumstances may have changed since you took the first mortgage — for example, you're now self-employed — and a full remortgage feels harder to arrange.
- People raise money this way for all sorts of reasons: home improvements, a large one-off cost, or bringing other borrowing together.
If bringing other debts together is the goal, tread carefully. Turning unsecured debt — like a credit card — into borrowing secured on your home can cost more over the long run and puts your home at risk. That's exactly the kind of trade-off worth talking through properly with a real adviser.
Second charge vs remortgage vs further advance
A second charge isn't the only way to borrow more against a property. Two common alternatives:
- Remortgage — replace your whole existing mortgage with a new, larger one. Sometimes the tidiest option, but you may lose your current rate or face an early repayment charge for leaving early.
- Further advance — borrow extra from your existing mortgage lender, on top of what you already owe. Handy if they'll offer it on reasonable terms, but you're limited to that one lender's view.
A second charge, by contrast, leaves your first mortgage untouched and opens up a different set of lenders. None of these is automatically the "right" one — it depends entirely on your numbers, your existing deal and your plans. This is genuinely a case where comparing all three properly is worth the effort.
How does it work in practice?
A lender will look at how much of your property you effectively own outright — the value that isn't already covered by your first mortgage. The more of that headroom you have, the more room there may be to borrow, though nothing is guaranteed.
They'll also assess affordability: your income, your outgoings, your existing mortgage payments and any other commitments. Every lender sets its own criteria, which is why two lenders can reach quite different conclusions on the very same application.
Because criteria vary so widely, this is an area where looking across the whole market — rather than one lender — can really matter. A whole-of-market adviser can search across many lenders to find ones whose criteria actually fit your situation.
Things worth weighing up
A few honest points to hold in mind:
- It's secured on your home. Missing payments on either the first or the second charge can put your property at risk.
- You'll have two secured payments to keep up rather than one.
- Going direct to a single lender is possible, and some lenders offer deals you can only get by approaching them yourself — but you'd only ever see that one lender's angle.
- Some advisers or lenders charge a fee for arranging a second charge; anyone reputable will tell you clearly and up front, before you commit to anything.
None of this makes a second charge good or bad in itself — it just makes it a decision worth understanding fully before you take it.
The honest bit
I can explain how second charge mortgages work, but I can't tell you whether one is right for you — that's a job for a qualified human adviser. When I connect you to one, there's no fee from me, the adviser is typically paid by the lender rather than by you, and you're under no obligation to go ahead.
Common questions
Is a second charge mortgage the same as a secured loan?
In everyday terms, yes — a second charge mortgage is a type of secured loan taken against a property that already has a mortgage on it. You'll hear both names used for the same thing. What matters is that it's secured on your home, so the same care and protections apply as with any mortgage.
Is a second charge mortgage the same as equity release?
No, and it's an easy mix-up. Equity release — such as a lifetime mortgage — is a specific type of product usually aimed at older homeowners, with its own separate rules. A second charge mortgage is simply an additional loan secured behind your main mortgage. They work very differently, so it's worth being clear which one you're actually looking at. A real adviser can explain the distinction for your situation.
Will taking a second charge affect my existing mortgage?
Your first mortgage stays exactly as it is — same lender, same terms, same payments. The second charge sits alongside it as a separate agreement. The key thing to remember is that both are secured on the same property, so you're committing to keep up two sets of payments.
Can I get a second charge mortgage if my credit isn't perfect?
It depends entirely on the lender and your circumstances, and I can't promise anything either way. Lenders each have their own criteria, and some consider a wider range of situations than others. Because that varies so much, it's the sort of thing a whole-of-market adviser can help you navigate — they can look across lenders rather than leaving you to guess.
Want to talk it through with a real person?
I can introduce you to a qualified, whole-of-market mortgage adviser who'll look at your situation properly and explain your options — no jargon, no pressure. The introduction is free, the adviser is typically paid by the lender rather than by you, and there's no obligation to go ahead.
Find my best deal →Your home may be repossessed if you do not keep up repayments on a mortgage or any other debt secured against it. This guide is general information, not advice.