Second Charge vs Remortgage: Which is Cheaper in 2026?
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When looking to release equity from your property using long-term finance, you really have two options available: a second charge mortgage or a remortgage.
Choosing the right option is often not straightforward and can require careful consideration.
Even when the decision comes down to cost, often, there isn’t a single ‘cheapest’ option as the impact of losing an existing rate, early repayment charges and the expected future trajectory of rates must be considered.
In this guide we break down the key differences between second charge loans and remortgages and help you to make the right decision on which is best for you.
Second Charge Mortgage vs Remortgage
Before deciding on which product is right for you, the first step is to understand exactly what each product is.
A second charge mortgage is a second loan that sits behind your current mortgage and allows you to borrow money against the equity in your property. This allows you to keep your existing mortgage in place.
A remortgage is a total refinance of your existing mortgage, repaying it in full and borrowing the whole amount (plus often more), with a new lender.
When remortgaging, you must go through the full mortgage application process again and should you have early repayment charges on your existing mortgage, must pay them to release you from your existing agreement.
| Feature | Second Charge Mortgage | Remortgage |
|---|---|---|
| Structure | Keep your current mortgage + add a second loan | Replace your entire mortgage with a new one |
| Interest Rate | Higher rate, but only on the new borrowing | Lower rate possible, applied to full balance |
| ERC Impact | Avoids early repayment charges | May trigger costly ERCs |
| Fees | Broker, lender, valuation | Arrangement, broker, valuation, legal, exit fees |
| Speed | Typically faster – 3–21 days | Usually slower – 8 weeks+ |
| Flexibility | More flexible (credit, income) | Stricter criteria |
| Best For | Keeping a low rate, avoiding ERCs, complex cases | End of deal, strong credit, simplifying finances |
| Overall Cost | Often cheaper if ERCs are high or current rate is low | Often cheaper if no ERCs and better rate available |
When is a Second Charge Better Than Remortgaging?
A second charge mortgage is better than a remortgage in the following situations:
- It works out cheaper – If you have a great interest rate on your mortgage and wish to retain it, a second charge mortgage allows you to achieve this.
- Speed is important – If you’re looking to raise money quickly, then a second charge mortgage will allow you to do this. A remortgage on the other hand is a much slower process and involves a detailed application process.
- Simplicity is important – As mentioned above, the mortgage application process is more difficult than that of a second charge. If ease of application and simplicity is important to you, then consider a second charge mortgage.
- You have early repayment charges – If you have significant early repayment charges on your existing mortgage, they can be avoided entirely by taking on a second charge instead of refinancing the whole debt.
- You may not qualify for a remortgage – Second charge mortgage criteria is much more flexible than mortgage criteria. In some cases, a borrower may not qualify for a remortgage, but can retain their existing mortgage and qualify for a 2nd charge mortgage.
When Should You Remortgage Instead?
A remortgage may be best when:
- Your current deal is ending (low or no ERCs) – This represents a natural opportunity to switch without penalties.
- Higher existing interest rate – If you have a high mortgage rate, there is potential to reduce your overall monthly payments while borrowing more.
- Large borrowing requirements – When looking to borrow large amounts, it may be more cost-effective to refinance the entire balance.
- Strong credit profile – If you have a strong credit history, you may be able to access to best high street rates and save money.
- Simplifying finances – One single monthly payment instead of two.
- Long-term cost focus – Remortgaging may be cheaper over the full mortgage term in some scenarios.
