Mortgages

How to Remortgage Step by Step: A UK Homeowner's Guide

SYM

Remortgaging sounds complicated, but it is actually a straightforward process once you know the steps. Thousands of UK homeowners remortgage every month, saving hundreds of pounds in the process. This step-by-step guide walks you through the entire journey from reviewing your current deal to completing on your new mortgage. Whether it is your first remortgage or your fifth, having a clear plan makes the process smoother and faster. Use the SYM app to track your savings from switching and stay on top of your financial goals.

Step 1: Review Your Current Mortgage

Before you do anything else, find out exactly where you stand with your current mortgage. Log into your lender's online portal or dig out your latest annual mortgage statement. You need to know your current interest rate, what type of deal you are on (fixed, tracker, SVR), when your current deal ends, your outstanding balance, and whether any early repayment charges (ERCs) apply. Your ERC is particularly important — leaving a fixed deal early can cost thousands. For example, a 3% ERC on a £200,000 balance means a £6,000 charge. In most cases, it makes sense to wait until your deal period ends unless the savings from a new rate outweigh the ERC. Also check your remaining mortgage term and your current monthly payment. This gives you a baseline to compare against new deals.
  • •Find your current interest rate and deal type
  • •Note your deal end date and any early repayment charges
  • •Check your outstanding balance and remaining term
  • •Record your current monthly payment for comparison

Step 2: Check Your Property Value and LTV

Your loan-to-value ratio (LTV) is one of the biggest factors determining what rates you can access. LTV is your outstanding mortgage balance divided by your property's current value, expressed as a percentage. For example, if you owe £150,000 on a property worth £250,000, your LTV is 60%. The lower your LTV, the better rates you will be offered. Key LTV thresholds where rates typically improve are 90%, 85%, 80%, 75%, and 60%. If you are close to a threshold — say at 77% LTV — it might be worth making a lump sum overpayment to bring yourself below 75% before remortgaging. Use online tools like Zoopla or Rightmove to estimate your property's current value. Bear in mind that the lender will conduct their own valuation, which may differ from online estimates.
  • •Calculate your LTV: (mortgage balance ÷ property value) × 100
  • •Key rate improvement thresholds: 90%, 85%, 80%, 75%, 60%
  • •Consider overpaying to reach a lower LTV band before switching
  • •Use Zoopla, Rightmove, or a local estate agent for a value estimate

Step 3: Compare Deals and Choose a Broker

Now comes the research phase. You have three main options: do your own research using comparison sites, use a fee-free mortgage broker, or use a fee-charging broker. For most people, a whole-of-market fee-free broker is the best choice. They earn commission from the lender, so their service costs you nothing, and they can access deals from across the market including some exclusive products. When comparing deals, do not just look at the headline rate. Calculate the total cost over the deal period including arrangement fees. A deal at 3.9% with a £1,000 fee may cost more overall than one at 4.1% with no fee, depending on your mortgage size. Your broker should present you with a comparison showing total costs. Also consider whether you want a fixed rate for payment certainty or a tracker rate that could fall if the base rate drops.
  • •Fee-free whole-of-market brokers offer the best combination of choice and value
  • •Compare total cost over the deal period, not just the interest rate
  • •Ask your broker about exclusive deals not available on comparison sites
  • •Decide between fixed (certainty) and tracker (flexibility) rates

Step 4: Apply and Gather Documents

Once you have chosen a deal, your broker will submit the application on your behalf. You will need to provide proof of identity (passport or driving licence), proof of address (utility bill or council tax statement), your last three months of bank statements, your latest payslips (usually three months' worth), your P60 or tax returns if self-employed (SA302 forms and tax year overviews for the last two to three years), and details of your current mortgage. The lender will run a credit check and assess your affordability. They will look at your income, outgoings, existing debts, and living costs. It is worth reducing your spending in the months before applying, as lenders will scrutinise your bank statements. The SYM app can help you track spending and build better habits ahead of your application.
  • •Passport or driving licence for ID verification
  • •Three months of bank statements
  • •Three months of payslips (or SA302 plus tax overviews if self-employed)
  • •Details of your current mortgage and any other debts
  • •Proof of address dated within the last three months

Step 5: Valuation, Offer, and Completion

After your application is submitted, the lender will arrange a valuation of your property. For remortgages, this is often a desktop valuation (no physical visit) or an automated valuation model (AVM), especially if your LTV is below 75%. Once the valuation is satisfactory and your application is approved, the lender issues a formal mortgage offer. This document sets out the terms of your new mortgage. A conveyancer or solicitor — often provided free by the lender — handles the legal work, which includes transferring the mortgage charge from your old lender to the new one. This stage typically takes two to four weeks. On completion day, the new lender pays off your old mortgage and your new deal begins. Your first payment under the new mortgage is usually due one month after completion. The entire process from application to completion typically takes four to eight weeks.
  • •Valuation is often automated for lower LTV remortgages
  • •The formal mortgage offer sets out all terms — read it carefully
  • •Free legal service from the lender handles conveyancing in most cases
  • •Completion typically happens 4–8 weeks after application

FAQ

Frequently asked questions about the remortgage process in the UK.
Can I remortgage with a different lender if I have a help-to-buy equity loan?+

Yes, but it adds complexity. You will need to inform your Help to Buy agent and the new lender must accept the equity loan charge on the property. Not all lenders will do this, so check with your broker. You may also need to pay off or reduce the equity loan first.

What happens if my property value has fallen since I bought it?+

If your property is worth less than when you bought it, your LTV will be higher, which means you may face higher rates or struggle to find a deal. In negative equity (where you owe more than the property is worth), remortgaging to a new lender is very difficult. A product transfer with your existing lender is usually the best option in this situation.

Do I need to remortgage when my fixed deal ends?+

You do not have to, but you should. When your fixed deal ends, you will automatically move to your lender's SVR, which is almost always significantly more expensive. Even a product transfer to a new deal with the same lender is better than staying on the SVR.

Can I change my mortgage term when I remortgage?+

Yes. Remortgaging is an opportunity to shorten or extend your term. Shortening your term increases monthly payments but reduces total interest paid. Extending your term lowers monthly payments but costs more over the life of the mortgage. Your broker can model different term lengths to show you the impact.

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