Thinking about remortgaging? Here is all you need to know before you start.

Remortgaging means switching your existing mortgage to a new deal, either with your current lender (a product transfer) or a new one, usually to get a better rate, release equity, or change terms. Remortgaging can be a good opportunity to review your mortgage deal, especially if you haven't done so for a few years. Whether it's the right time depends on current interest rates, your personal circumstances, and any early repayment charges on your existing mortgage. With rates having shifted considerably in recent years, it's worth checking whether your current deal still works for you. Your home may be repossessed if you do not keep up repayments on your mortgage.

What is remortgaging?

Mortgages have defined terms, which tend to be 25 or 30 years. Many UK mortgages have fixed-rate periods of two or five years, after which borrowers may move onto a new deal or revert to a lender's variable rate, depending on the product. You can sometimes switch before the end of a fixed-rate term, but early repayment charges may apply, so it is important to check the costs first.

When you remortgage, the new lender may carry out affordability checks and may also value the property, depending on the product and application. Remortgaging is also an opportunity for homeowners to check the market and make sure they are still using the home loan that's most suitable for their circumstances.

Remortgaging vs product transfer: what's the difference?

When your current mortgage deal is coming to an end, you generally have two options: remortgage with a new lender or arrange a product transfer with your existing one. Both can save you money compared with slipping onto a standard variable rate, but they work quite differently.

In short, a product transfer is the simpler, faster route and works well if your current lender's rates are competitive. A full remortgage takes more effort but opens up the entire market - and the savings over a two- or five-year term can be considerable. Comparing both options before making a decision is the best way to ensure you end up on the right deal.

When is the best time to remortgage?

Timing can make a significant difference to how much you save when remortgaging. Starting the process at the right point - relative to both your current deal and the wider market - helps you avoid unnecessary charges and secure a competitive rate.

How far in advance should you start looking?

Most mortgage offers are valid for three to six months, so it is sensible to begin researching new deals around six months before your current fixed or discounted period ends. This gives you time to compare rates, gather documents, and complete an application without feeling rushed. Starting early also means you can lock in a rate while still having your existing deal in place, providing a safety net if rates rise before completion.

What happens if your fixed-rate period is about to end?

When a fixed-rate period expires, most lenders move you onto their standard variable rate (SVR), which is almost always higher - sometimes significantly so. If you do nothing, your monthly payments could jump by hundreds of pounds. Acting before this switch happens ensures there is no gap where you are paying more than necessary. Setting a reminder a few months ahead of the end date is a straightforward way to stay on top of it.

Does it ever make sense to remortgage mid-fix?

Occasionally, yes - but only if the savings from a new, lower rate outweigh the early repayment charges on your current deal. This tends to happen when interest rates have fallen sharply since you took out your mortgage, or when you have a large outstanding balance where even a small rate reduction translates into substantial monthly savings. Run the numbers carefully, factoring in every fee, before committing to an early switch.

How do current interest rate trends affect timing?

Interest rates are influenced by the Bank of England base rate and wider economic conditions. When rates are expected to rise, locking into a fixed deal sooner rather than later can protect your repayments. When rates are falling or stable, you may have more flexibility to shop around. Keeping an eye on market commentary and checking your options through ClearScore can help you judge whether now is the right moment to act.

How to remortgage your house

It's a good idea to be actively involved when negotiating your mortgage. When a fixed-rate period ends, most lenders will move you onto their standard variable rate (SVR) unless you actively arrange a product transfer or remortgage to a new deal.

But for the home owner, remortgaging is a chance to identify loans with lower interest rates that offer the same features of your current loan, for instance an offset facility, and at the same time reduce the amount of your repayments. ClearScore lets you compare mortgage deals from different lenders based on your credit profile.

When you go to renegotiate your home loan, come prepared with information about the value of recent sales in the area, to help justify your view of the property's value. On real estate sites, search for properties with similar features in your area to back up what you think your property is worth.

Lenders will require proof of your financial situation under FCA rules, such as recent payslips (typically three months' worth) and bank statements. If you are self-employed, you will usually need to provide SA302 tax calculation forms as well.

Before remortgaging, it's highly recommended for you to check your credit report to understand how lenders may view your application. Your ClearScore account shows an Equifax credit score and report, presented in bands, but lenders use their own criteria as well. A higher score generally means a stronger credit history, but lenders also consider other factors such as your existing borrowing and whether repayments are affordable. Checking your score on ClearScore won't affect it. ClearScore is a credit broker, not a lender, but we do give you your credit score and report for free using data from Equifax.

It's a great idea to compare your new loan with your current loan using a mortgage comparison calculator. FCA-authorised mortgage brokers, lenders' tools, and regulated comparison services can help you compare options and estimate potential costs.

Step-by-step remortgage checklist

If you're wondering how to remortgage your house in practice, following a clear sequence of steps helps keep the process on track and avoids costly delays.

• Check when your current deal ends and note any ERC window. Look at your mortgage paperwork or log in to your lender's portal to find the exact date your fixed or discounted period expires. Make a note of any early repayment charges and when they fall away - this determines the earliest you can switch without incurring extra costs.

• Review your credit report and address any issues. Before applying, check your credit score and report through your ClearScore account. Look for errors, outdated addresses, or missed payments that could affect how lenders view your application. Addressing any issues early may improve how lenders view your application, though rates also depend on other factors.

• Gather your documents. Lenders will typically ask for recent payslips, bank statements covering the last three months, and your latest tax return if you are self-employed. Having these ready speeds up the application considerably.

• Research current rates and compare deals. Use a mortgage comparison calculator to see what is available. Pay attention to the overall cost - including fees - rather than the headline interest rate alone.

• Decide between a broker and going direct. An FCA-authorised mortgage broker can search the market on your behalf and may have access to exclusive deals. Going direct to a lender can also work well, particularly if you already know which product you want.

• Apply and complete the lender's valuation and affordability checks. Once you have chosen a deal, submit your application. The lender will assess your income and outgoings and may arrange a valuation of your property.

• Solicitor handles the legal transfer. A conveyancer or solicitor manages the legal side, transferring the mortgage from your old lender to the new one. Some lenders provide a free legal service as part of the remortgage package.

• New mortgage begins - set up payments. Once everything is finalised, your new mortgage starts. Confirm that your direct debit is set up correctly and keep a copy of your new mortgage offer for your records.

The whole process typically takes four to eight weeks from the first application to the new mortgage going live, so starting well ahead of your current deal's end date is important.

What should you consider if you're thinking about remortgaging?

There are many factors to consider when you remortgage and it's advisable to take the time to consider the different home loan elements you want and that suit your circumstances.

Fixed or floating interest rate:

You can fix the interest rate you will pay for the next term (typically two to five years) or choose to take out a variable rate mortgage. You can also choose a mortgage that is split into two with one half fixed and the other half variable. The right choice will depend on your view of interest rates. If you think rates are going up, you would tend to fix the rate, If you think rates may fall, a variable or tracker mortgage may suit you, but you should also consider the risk that payments could rise. Borrowers who want to hedge their bets on interest rates tend to split the mortgage between variable and fixed.

Features:

Make sure you select the loan that has the features you want, such as an offset facility or flexible drawdown options, as well as the ability to make overpayments. The right combination of features will also depend on your circumstances. Also check whether you can contribute extra to the loan over its life and ask if you will need to pay a fee to make extra contributions or pay off the loan early.

Consolidate your debts:

Remortgaging can sometimes be used to consolidate debts, but it may increase the total cost of borrowing and should be considered carefully because your home may be repossessed if you do not keep up repayments on your mortgage. This may be an option if the interest rate payable on credit cards and other loans is substantially higher than the rate payable on the home loan, but spreading short-term debts over a longer mortgage term could mean you pay more in total.

Your mortgage is likely to be your most significant financial obligation. So make sure you take the time to ensure you're using the right home loan for you every time that you renegotiate it.

Lloyd writes about personal finance at ClearScore.

How much does it cost to remortgage?

Remortgaging isn't always free, and the total cost depends on several fees that can vary widely between lenders. Understanding these costs upfront is essential to working out whether switching deals will genuinely save you money.

What fees do you pay when remortgaging?

The main costs to budget for when remortgaging include an arrangement fee (sometimes called a product fee), which lenders charge for setting up the new mortgage - typically between £500 and £2,000, though some deals have no arrangement fee at all. You may also face a valuation fee if the new lender needs to assess your property's worth, although many remortgage products include a free valuation. Legal fees cover the conveyancing work required to transfer the mortgage from one lender to another; again, some lenders offer free legal work as part of the package. Finally, there may be a booking fee or application fee, though these are less common than they once were.

What are early repayment charges and how are they calculated?

Early repayment charges (ERCs) apply if you leave your current mortgage before the fixed or discounted period ends. They are usually calculated as a percentage of the outstanding loan - often between 1% and 5% - and typically decrease each year you are into the deal. For example, on a £200,000 mortgage with a 3% ERC, you could face a charge of £6,000. Always check your current mortgage terms to find out exactly when your ERC window closes, as this date is critical to your timing.

Are there free remortgage deals available?

Yes. A number of lenders offer remortgage packages that cover valuation and legal costs and charge no arrangement fee. These deals may come with a slightly higher interest rate to offset the waived fees, so it is worth comparing the total cost over the full term rather than focusing on any single fee. Product transfers with your existing lender can also be a lower-cost route, as they often involve fewer fees and less paperwork.

How do you work out whether remortgaging saves you money overall?

To determine whether remortgaging is worthwhile, add up every fee you would pay - arrangement fee, valuation, legal costs, and any ERC - then compare that total against the savings from the lower interest rate over the new deal period. A mortgage comparison calculator can help you run these numbers side by side. If the savings comfortably exceed the costs, switching to a new deal is likely to be worthwhile. If the margin is slim, it may be better to wait until your current deal ends and the ERC no longer applies.