Definition
A remortgage is when you switch your existing mortgage to a new deal — either with your current lender or a different one — without moving home. You’re not taking out a brand new mortgage to buy a property. You’re replacing the deal you already have with a better or more suitable one.
In Simple Terms
Think of it like switching your energy supplier. You’re still in the same house, using the same property as security. You’re just changing who you’re paying, or what rate you’re paying, to get a better deal. Most people remortgage because their current fixed rate has ended and they want to avoid being moved onto their lender’s standard variable rate — which is usually one of the most expensive options available.
What Does Remortgaging Mean in Practice?
When you remortgage, you apply for a new mortgage product and use it to pay off your existing one. If you stay with the same lender, this is sometimes called a product transfer. If you move to a new lender, your new lender pays off the old one and takes over the mortgage. Either way, your monthly payment changes — usually in your favour.
Remortgaging can also involve borrowing more money at the same time. If your property has gone up in value since you bought it, or you’ve paid off a chunk of the original loan, you may have equity available to release. Some homeowners remortgage to fund home improvements, consolidate debts, or raise a deposit for a second property. The extra borrowing is added to the new mortgage, and you repay it over the remaining term.
The process typically takes four to eight weeks and involves a new affordability assessment, a credit check, and sometimes a valuation of your property. A mortgage broker can manage this on your behalf and search across lenders to find the most suitable deal.
When Should You Consider Remortgaging?
The most common reason is that your fixed-rate or tracker deal is coming to an end. Most fixed-rate mortgages run for two, three, or five years. When the deal expires, lenders move you onto their standard variable rate automatically. That rate is almost always higher — sometimes significantly — so acting before the expiry date is important. I usually advise clients to start looking around three to six months before their deal ends.
You might also consider remortgaging if interest rates have fallen since you took out your current deal. If you locked in at a higher rate and rates have since dropped, switching could reduce your monthly payments — although you’ll need to weigh that against any early repayment charges on your existing mortgage.
Remortgaging makes sense when you want to borrow more against the equity in your home. Whether it’s for a loft conversion, a new kitchen, or helping a child with a deposit, releasing equity through a remortgage tends to be cheaper than taking out a separate personal loan — because the debt is secured against your property.
It’s also worth considering if your financial circumstances have changed. If your income has grown, your credit profile has improved, or your loan-to-value has dropped significantly, you may now qualify for a better rate than you did when you first took out the mortgage.
Finally, some people remortgage to change their mortgage type — for example, moving from interest-only to a capital repayment mortgage, or switching from a variable rate to a fixed one for more payment certainty.
Pros and Cons of Remortgaging
Pros
Lower monthly payments. Switching to a better rate — even a modest reduction — can save hundreds of pounds a year. Over a two or five-year fixed term, that adds up considerably.
Access to equity. If your home has increased in value, remortgaging lets you release that equity as cash without selling the property. It’s often a more cost-effective route than unsecured borrowing.
More certainty. Moving onto a new fixed-rate deal means you know exactly what you’ll pay each month for the next few years, which makes budgeting easier — particularly useful if interest rates are rising.
Cons
Early repayment charges. If you remortgage before your current deal ends, your lender will likely charge an early repayment fee — sometimes several thousand pounds. It’s essential to check whether the savings from switching outweigh this cost before proceeding.
Fees and costs. Remortgaging isn’t always free. There may be arrangement fees, valuation fees, and legal costs involved, depending on the lender and the product. Some deals advertise no fees but compensate with a slightly higher rate — it’s worth comparing the total cost over the full term, not just the headline rate.
Your home is at risk. A remortgage is still a secured loan. If you borrow more than you need, or take on debt you can’t comfortably afford, your home could be at risk if you fall behind on payments. This is particularly relevant when remortgaging to consolidate unsecured debts — moving short-term debt onto a long-term mortgage can mean paying more interest overall, even if the monthly payment falls.
Related Terms
You may also want to look up: Further Advance, Product Transfer, Standard Variable Rate, Loan to Value, Early Repayment Charge.
Your home may be repossessed if you do not keep up repayments on your mortgage. Think carefully before securing other debts against your home.
