A second charge mortgage lets you borrow against the equity in a property you already own, while leaving your existing mortgage exactly where it is. The new lender takes a second charge, sitting behind your current lender in priority.
It exists to solve a specific problem: you need capital, but remortgaging would cost you more than it releases.
When a Second Charge Beats a Remortgage
Raising money against your home or investment property usually means one of three routes — a further advance from your existing lender, a full remortgage, or a second charge. The right answer depends less on headline rate and more on what a remortgage would cost you elsewhere.
- You are on a rate worth protecting. Borrowers holding a fixed rate agreed in a cheaper market often lose far more by moving the whole balance than they save on the new borrowing.
- Early repayment charges apply. An ERC on a large first-charge balance can wipe out any benefit from refinancing.
- Your circumstances have changed. Recently self-employed, a shorter trading history, or credit events since the original mortgage completed — a second charge lender assesses the new borrowing on its own terms rather than reopening the whole facility.
- Your existing lender has declined a further advance. A refusal from one lender is not a verdict from the market.
- Speed matters. Second charge cases typically complete faster than a full remortgage.
What a Second Charge Is Used For
- Home improvements and extensions, where the spend adds value
- Deposit for a buy-to-let or an additional property
- Consolidating more expensive unsecured borrowing
- Capital injection into a business, or a tax bill with a hard deadline
- Divorce and separation settlements, where one party buys out the other
How Lending Is Assessed
A second charge lender looks at the combined loan to value — your existing mortgage plus the new borrowing, against the property's current value. Most will lend to around 75% combined, with some specialist lenders going higher on the right case.
Because the lender ranks behind your first-charge lender, the rate is usually higher than a mainstream mortgage. The relevant comparison is not the rate on your existing mortgage — it is the total cost of a remortgage, including any early repayment charge, against the total cost of the second charge.
Your first-charge lender's consent is generally required, and terms are commonly available from three to thirty years.
Second Charge on Buy-to-Let and Commercial Property
Second charges are not limited to owner-occupied homes. Landlords use them to release equity from an existing rental for the deposit on the next purchase, without breaking a fixed buy-to-let rate. Business owners use them to raise working capital against commercial premises or a director's property.
Second Charge or Bridging?
Both raise money against property you already own, and they answer different questions. A bridging loan is short-term and repaid from a specific event — a sale, a refinance, a completed refurbishment. A second charge is term borrowing you repay from income over years. If you cannot name the event that clears the debt, bridging is the wrong instrument.
Where the requirement is a straightforward loan against property without the second-charge structure, our secured loans page covers the wider range.
Frequently Asked Questions
Will taking a second charge affect my existing mortgage?
No. The rate, term and monthly payment on your first-charge mortgage are unchanged. You simply have a second, separate monthly payment.
How much can I borrow?
It depends on the equity available and affordability. Most lenders work to around 75% of the property's value including your existing mortgage.
Can I get a second charge with adverse credit?
Often, yes. Specialist second charge lenders take a more considered view of credit history than high street mortgage lenders, particularly where there is solid equity behind the loan.
What happens if I sell the property?
Both loans are repaid from the sale proceeds, with the first-charge lender paid first and the second charge lender next.
Is a second charge regulated?
Second charges on a property you live in are regulated mortgage contracts. Those on investment and commercial property are usually unregulated.
Your property may be repossessed if you do not keep up repayments on any loan secured against it. Think carefully before securing other debts against your home.