A complete breakdown of every fee you might face when switching your mortgage in 2026 — and which costs you can avoid with the right approach.
Remortgaging involves switching from your current mortgage deal to a new one, either with the same lender or a different one. While the main goal is to reduce your monthly payments or release equity, there are several costs involved in the process. Understanding these upfront helps you calculate whether switching will genuinely save you money.
The good news is that many of these fees can be reduced, waived, or absorbed into the new mortgage — particularly if you work with an experienced broker who knows which lenders offer the best incentive packages.
The arrangement fee is charged by your new lender for setting up the mortgage. It typically ranges from £0 to £1,999, with most competitive fixed-rate deals charging between £500 and £999. Some of the very lowest interest rates come with higher arrangement fees, so you need to weigh the total cost over the deal period rather than looking at the rate alone.
You can usually choose to pay the arrangement fee upfront or add it to your mortgage balance. Adding it to the balance means you pay interest on it for the life of the loan, which increases the total cost. On a £1,000 fee added to a 25-year mortgage at 4.5%, you would pay around £670 in additional interest over the term.
Many lenders offer fee-free remortgage products with slightly higher interest rates. For smaller mortgages (under £150,000), a fee-free deal often works out cheaper overall because the arrangement fee represents a larger proportion of the total cost. For larger mortgages, the lower rate with a fee can save more over the deal period. A broker can run both calculations for your specific situation.
Your new lender needs to confirm the value of your property before approving the remortgage. A valuation fee typically costs between £150 and £1,500 depending on the property value, but many lenders now offer free valuations as part of their remortgage packages. In most cases, the valuation is a desktop or drive-by assessment rather than a full survey.
Remortgaging requires a solicitor or licensed conveyancer to handle the legal transfer between lenders. Expect to pay between £300 and £600 for a straightforward remortgage. However, many lenders offer free legal work as an incentive, using their own panel solicitors to handle the process at no cost to you.
If you are remortgaging with the same lender (a product transfer), no legal work is required at all, which eliminates this cost entirely.
If you leave your current mortgage deal before the initial period ends, you will likely face an early repayment charge. ERCs are usually calculated as a percentage of the outstanding balance and typically decrease each year of the deal:
On a £250,000 mortgage, a 3% ERC would cost £7,500. This is typically the largest potential cost of remortgaging and the main reason most people wait until their deal ends before switching.
Important: Always check your current mortgage offer document for the exact ERC schedule. Some lenders use different structures, and the charge may not decrease evenly each year.
If you use a mortgage broker, they may charge a fee for their advice — typically between £300 and £500. However, many brokers (including those matched through Nesto) offer their services fee-free, earning their commission from the lender instead. This means you get whole-of-market advice without paying anything out of pocket.
Your current lender may charge a small exit fee when you leave, typically between £50 and £300. This covers the administrative cost of releasing the title deeds and closing the mortgage account. This fee applies regardless of whether you are within an ERC period or not.
For a typical UK homeowner remortgaging after their fixed-rate deal ends, the costs might look like this:
Total: £75 to £1,074, depending on whether you choose a fee-free or low-rate product.
Compare this to the potential savings. If your current SVR is 7.5% and you remortgage to a fixed rate of 4.5% on a £200,000 balance, you could save around £350 per month — more than £4,000 per year. The costs pay for themselves within the first few months.
Tip: Ask your broker to calculate the total cost of the mortgage over the full deal period, including all fees. This gives you the true cost comparison rather than just looking at monthly payments or headline rates.
In the vast majority of cases, yes. The savings from moving off an SVR to a competitive fixed or tracker rate far exceed the costs involved. Even when arrangement fees apply, the monthly savings typically recoup the costs within a few months.
The only scenarios where remortgaging may not be worthwhile are when your remaining balance is very small, you would face a large ERC, or your circumstances have changed to the point where you would not qualify for a better deal.
A remortgage broker can run a full cost-benefit analysis for your specific situation in minutes. Get Matched Free through Nesto to find out exactly what you could save.
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