Mortgage & Borrowing Guide · 2026/27
Second Charge Secured Loans 2026/27: How They Work vs Remortgaging
A second charge loan lets you borrow against your home's equity without disturbing your existing mortgage -- useful if you have a great fixed rate you don't want to lose. But it means two loans secured against the same property, usually at a higher rate than remortgaging, and real repossession risk if either payment is missed. Here is how it compares.
Second Charge Loan vs Remortgaging
| Factor | Second charge loan | Remortgaging |
|---|---|---|
| Existing mortgage rate | Kept unchanged | Replaced entirely |
| Early repayment charge risk | Avoided | May apply on full balance |
| Typical interest rate | Usually higher | Usually lower |
| Number of monthly payments | Two separate payments | One combined payment |
Worked Example: When a Second Charge Beats Remortgaging
Dan has a £200,000 mortgage at a fixed rate of 3.5% with three years left on the deal, and an early repayment charge of 3% (£6,000) if he leaves early. He wants to raise £30,000 for a home extension.
Remortgaging the full £230,000 to a new deal would trigger the £6,000 early repayment charge and move his whole existing balance onto a potentially higher current rate. Instead, Dan takes a second charge loan for just the £30,000 he needs, keeping his cheap 3.5% deal on the original £200,000 intact -- even though the second charge rate on the £30,000 is higher, the overall cost can be lower than losing the fixed rate on the much larger sum.
Key Facts at a Glance
- Regulator
- FCA, same MCOB rules as first mortgages
- Regulated since
- March 2016
- First mortgage lender consent
- Required before registering a second charge
- Repossession priority
- First charge lender repaid first
- Common uses
- Home improvements, debt consolidation, business funds
- Typical LTV limit (combined)
- Up to c. 75–90% depending on lender