How to remortgage in the UK: a step-by-step guide

Introduction

Remortgaging is the process of switching your existing mortgage deal—either by moving to a new deal with your current lender or by taking out a new mortgage with a different lender. People typically remortgage to secure a more suitable interest rate, change their monthly payments, or adjust the mortgage term to better match their plans.

Because remortgaging involves deadlines, paperwork and lender checks, it helps to understand the stages in advance. Planning early can reduce the risk of your current deal ending and you being moved onto your lender’s standard or default rate.

Key points to know before you start

• Timing matters. If your current deal ends, you may move onto your lender’s standard or default rate. Starting the process early can give you more options.
• You’ll need accurate figures. A redemption statement confirms what it costs to repay your existing mortgage, including any relevant fees.
• Affordability checks are part of the process. Lenders will review your income, outgoings and credit history.
• Legal work is usually required when switching lenders. A solicitor or conveyancer typically handles the legal transfer of the mortgage and supports completion.

Step-by-step guide to remortgaging in the UK

Step 1: Review your current mortgage deal

Start by checking:

• When your current deal ends (and what rate you’ll move onto afterwards)
• Whether you’re on a fixed, discounted or tracker deal
• Any changes that may affect your payments once the deal period finishes

This gives you a practical timeline for when to begin arranging your remortgage.

Step 2: Work out the cost to redeem your existing mortgage

To remortgage, you generally need a redemption statement from your current lender. This shows:

• The outstanding balance
• Any fees that apply to repaying the mortgage

If you’re leaving your deal early, there may be early repayment charges. Understanding these costs helps you judge whether remortgaging now is likely to be worthwhile.

Step 3: Choose your remortgage route

There are two common routes:

• Remortgaging with your existing lender (often simpler, but still subject to checks)
• Switching to a new lender (usually involves a full application and legal transfer)

In either case, it’s important to consider what you want to achieve—such as lowering monthly payments, reducing the overall term, or securing a different type of interest rate.

Step 4: Decide on the mortgage structure

Before you apply, you’ll need to consider the product features that affect both cost and risk:

• Interest rate type: fixed vs variable
• Repayment method: repayment vs interest-only
• Mortgage term: shorter terms can reduce interest paid overall, while longer terms can reduce monthly payments

The “best” choice depends on your circumstances and how comfortable you are with payment changes over time.

Step 5: Prepare for lender affordability checks

Lenders will assess whether you can afford the new mortgage. Expect to provide information about:

• Your income and employment details
• Regular outgoings and existing financial commitments
• Credit history

Having relevant documents to hand can help prevent delays when the lender requests further information.

Step 6: Consider whether you need legal support

If you’re switching lenders, a solicitor or conveyancer is typically involved to manage the legal side of transferring the mortgage.

They will handle tasks such as:

• Preparing and submitting legal paperwork
• Coordinating with the lender(s)
• Supporting completion and ensuring the mortgage is put in place correctly

If you’re staying with the same lender, the process may be less complex, but there can still be administrative steps.

Step 7: Go through the initial lending stage

Many applications start with initial checks and may include an indicative decision based on the information provided. This helps confirm whether the lender is likely to proceed.

It’s important to remember that an indicative decision is not the same as a final, binding offer.

Step 8: Arrange the valuation (and understand what it means)

A lender will usually arrange a valuation of your property. This helps the lender confirm:

• The property’s value
• The loan-to-value (LTV) ratio

A valuation is primarily for the lender’s risk assessment. If you want a deeper view of the property’s condition, you may choose to arrange a separate survey.

Step 9: Submit the full application

Once the initial stage is complete and the valuation is underway (where required), the lender will progress to the full application.

At this point, the lender may request additional documents or clarifications. Responding promptly can help keep the process moving.

Step 10: Review the formal mortgage offer

If the lender approves the application, you’ll receive a formal mortgage offer. This sets out key details such as:

• The loan amount
• The interest rate and any product conditions
• Fees and other relevant terms

Read the offer carefully and ensure it matches what you agreed to before proceeding.

Step 11: Completion—repaying the old mortgage and starting the new one

After you accept the mortgage offer, the legal process moves towards completion.

Typically, completion involves:

• The new lender providing funds
• Those funds being used to repay the existing mortgage
• The new mortgage terms taking effect

Completion dates can be affected by how quickly paperwork is processed, so it’s helpful to keep an eye on timelines.

Step 12: Register the new mortgage with the Land Registry

Once the mortgage has completed, the final legal step is usually registering the new mortgage with the Land Registry.

When registration is complete, the remortgaging process is fully in place.

Conclusion

Remortgaging in the UK is a structured process: you start by understanding your current deal and timing, then gather the figures needed to redeem your mortgage, go through affordability and valuation checks, and finally complete the legal steps to put the new mortgage in place.

Planning ahead—especially around deal end dates, redemption costs and documentation—can make the process smoother and help you make decisions with confidence.

Frequently asked questions

What does remortgaging mean?

Remortgaging means replacing your existing mortgage deal with a new deal. This can be with your current lender or a different lender.

When should I start the remortgaging process?

Many homeowners begin planning several months before their current deal ends to reduce the risk of moving onto a higher default rate.

Do I need a solicitor to remortgage?

If you’re switching lenders, a solicitor or conveyancer is usually required to manage the legal transfer. If you’re staying with the same lender, the legal process may be simpler.

Will remortgaging affect my credit score?

A remortgage application typically involves credit checks, which can have a short-term impact. Keeping repayments up to date and managing credit responsibly helps support your credit profile.

Can I remortgage if my circumstances have changed?

Often, yes—but lenders will reassess affordability based on your current situation. Changes such as income, employment, or major spending can affect what you’re able to borrow and on what terms.