When and How to Remortgage: A Complete UK Guide
Switching your mortgage at the right time can save you hundreds a month. Here’s how to know when it’s time and what to expect.
Saniya
Mortgage Adviser
A remortgage is the process of switching your existing mortgage to a new deal — either with your current lender (often called a product transfer or rate switch) or with a completely different lender. It is one of the most effective ways for UK homeowners to reduce their monthly payments, lock in a better interest rate, or release equity that has built up in their property over time. Despite the potential savings, millions of borrowers never get around to remortgaging and end up paying far more than they need to on their lender’s standard variable rate (SVR).
The best time to start thinking about a remortgage is around three to six months before your current deal expires. Most fixed-rate and tracker deals last two, three, or five years, and once they end you are automatically moved onto the lender’s SVR — which is almost always significantly higher than the rate you were paying. Even a difference of one percentage point on a £200,000 mortgage can add more than £100 a month to your payments, so acting before the switch happens is critical.
In this guide we cover the key reasons to remortgage, how to tell if you are on your lender’s SVR, what early repayment charges (ERCs) are and how they affect your timing, the step-by-step remortgage process from application to completion, how equity release works through remortgaging, and the costs you should budget for. Whether you are a homeowner looking to save money each month or an investor wanting to restructure your portfolio, this guide will help you make an informed decision.
When should you remortgage?
The most common trigger is the end of your current fixed-rate or tracker deal. Once that deal expires you land on your lender’s SVR, which is typically 1.5% to 3% higher than the rate you were paying. On a £250,000 mortgage that difference could cost you £200–£400 extra every month.
Other good reasons to consider a remortgage include: your property has increased in value (giving you a lower LTV and access to better rates), you want to borrow more, switch rate type, or release equity.
Your property value has increased
- A higher property value means a lower LTV ratio, which can unlock significantly better interest rates and save you thousands over the term.
You want to reduce monthly payments
- Switching from an SVR to a competitive fixed or tracker rate can cut your monthly outgoings substantially, freeing up cash for other priorities.
You want to release equity
- Remortgaging for a higher amount than you currently owe lets you access the equity in your home for renovations, investments, or other major expenses.
You want payment certainty
- Moving from a variable rate to a fixed rate protects you against future interest rate rises, giving you a guaranteed monthly payment for the fixed period.
The SVR trap: why it costs you money
Your lender’s standard variable rate (SVR) is the default rate you revert to when your introductory deal ends. Unlike fixed or tracker rates, the SVR is set entirely at the lender’s discretion and can change at any time. Most SVRs in the UK sit between 6% and 8%, compared with competitive fixed rates that may be between 4% and 5.5%.
SVR vs fixed rate on a £200,000 mortgage (25-year term)
Fixed rate at 4.5%
- Monthly payment: £1,111
- Annual cost: £13,332
- Rate guaranteed for deal period
- Total interest (2-year fix): £17,064
SVR at 7.25%
- Monthly payment: £1,440
- Annual cost: £17,280
- Rate can rise at any time
- Total interest (same 2 years): £28,176
“Sitting on an SVR for just two years on a £200,000 mortgage could cost you over £11,000 more in interest than switching to a competitive fixed rate.”
Repayment Calculator
This calculator provides estimates only. For personalised advice, speak to an adviser.
Early repayment charges explained
An early repayment charge (ERC) is a penalty fee your lender charges if you repay all or part of your mortgage before the introductory deal period ends. ERCs are typically between 1% and 5% of the outstanding loan balance, and they usually decrease each year you are in the deal. Our guide on when to remortgage covers timing strategies in more detail.
Typical ERC costs on a £250,000 mortgage
£12,500
5% ERC (Year 1)
Highest charge in first year of deal
£7,500
3% ERC (Year 3)
Reduces as you progress through deal
£2,500
1% ERC (Year 5)
Lowest charge in final year
£0
After deal ends
No penalty once on the SVR
Start your remortgage early
Most lenders let you apply for a new deal three to six months before your current one expires. This means you can lock in a rate now without triggering an ERC, and your new deal starts seamlessly when the old one ends.
Not sure where you stand?
Our mortgage experts can review your situation, find the best deals, and guide you through every step.
The remortgage process step by step
Remortgaging is typically quicker and simpler than taking out your original mortgage, especially if you are not moving home. The process usually takes four to eight weeks from application to completion. For a deeper look at the full process, see our guide to remortgaging.
Releasing equity through a remortgage
If your property has increased in value since you bought it, or you have paid down a significant portion of your mortgage, you may have built up substantial equity. Remortgaging for a higher amount than your outstanding balance allows you to release some of that equity as cash. Use our LTV calculator to check your current equity position.
Equity release example
Property value: £350,000. Outstanding mortgage: £200,000. Available equity: £150,000. If you remortgage for £250,000 (71% LTV), you release £50,000 in cash while staying in a competitive rate band.
LTV Calculator
Enter your current property value and outstanding mortgage to see your LTV ratio and how much equity you could potentially release.
Overpayment Calculator
See how making overpayments could build equity faster and reduce the total interest you pay over the life of your mortgage.
Costs involved in remortgaging
While remortgaging can save you money in the long run, there are upfront costs to be aware of. A broker can help you weigh up a lower rate with higher fees against a slightly higher rate with no fees. Use our repayment calculator to compare the monthly cost of different deals.
Mortgage Rates Explained
Understand fixed, tracker, and SVR rates so you can pick the right deal when you remortgage.
What Is Loan-to-Value (LTV)?
Your equity has likely grown since you bought — see how a lower LTV unlocks better rates.
How Much Can I Borrow?
If you want to borrow more when remortgaging, find out what lenders will offer.
A Guide to Remortgaging
A detailed look at remortgage products, product transfers, and when to switch lenders.
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What Our Clients Say
Real reviews from real homeowners. See why hundreds of clients trust Clearview with their mortgage.
“Clearview made the whole mortgage process so much less stressful. Ali explained every step, found us a rate we didn’t think was possible, and kept us updated throughout. We completed in just five weeks.”
Sarah Mitchell
First-Time Buyer
“We were on our lender’s SVR paying way too much. Clearview found us a fixed deal that saved us over £300 a month. The whole switch was handled for us — couldn’t recommend them enough.”
James & Priya Patel
Remortgage
“As a contractor I’d been turned down twice before. Clearview knew exactly which lenders to approach and how to present my income. Got approved first time with a great rate. Absolute lifesavers.”
David Thompson
Self-Employed
“I’ve used Clearview for three BTL purchases now. They understand the portfolio landlord criteria inside out and always find competitive products. Professional, fast, and genuinely knowledgeable.”
Emma Collins
Buy-to-Let Investor
“Selling and buying at the same time felt overwhelming, but Clearview coordinated everything with our solicitor and estate agent. They even helped us port our existing deal. Brilliant service from start to finish.”
Michael & Laura Reed
Moving Home
“I had a CCJ from years ago and thought I’d never get a mortgage. Clearview matched me with a specialist lender and I’m now a homeowner. They treated me with respect and never judged my situation.”
Rachel Okonkwo
Bad Credit Mortgage
“Clearview made the whole mortgage process so much less stressful. Ali explained every step, found us a rate we didn’t think was possible, and kept us updated throughout. We completed in just five weeks.”
Sarah Mitchell
First-Time Buyer
“We were on our lender’s SVR paying way too much. Clearview found us a fixed deal that saved us over £300 a month. The whole switch was handled for us — couldn’t recommend them enough.”
James & Priya Patel
Remortgage
“As a contractor I’d been turned down twice before. Clearview knew exactly which lenders to approach and how to present my income. Got approved first time with a great rate. Absolute lifesavers.”
David Thompson
Self-Employed
“I’ve used Clearview for three BTL purchases now. They understand the portfolio landlord criteria inside out and always find competitive products. Professional, fast, and genuinely knowledgeable.”
Emma Collins
Buy-to-Let Investor
“Selling and buying at the same time felt overwhelming, but Clearview coordinated everything with our solicitor and estate agent. They even helped us port our existing deal. Brilliant service from start to finish.”
Michael & Laura Reed
Moving Home
“I had a CCJ from years ago and thought I’d never get a mortgage. Clearview matched me with a specialist lender and I’m now a homeowner. They treated me with respect and never judged my situation.”
Rachel Okonkwo
Bad Credit Mortgage
“Clearview made the whole mortgage process so much less stressful. Ali explained every step, found us a rate we didn’t think was possible, and kept us updated throughout. We completed in just five weeks.”
Sarah Mitchell
First-Time Buyer
“We were on our lender’s SVR paying way too much. Clearview found us a fixed deal that saved us over £300 a month. The whole switch was handled for us — couldn’t recommend them enough.”
James & Priya Patel
Remortgage
“As a contractor I’d been turned down twice before. Clearview knew exactly which lenders to approach and how to present my income. Got approved first time with a great rate. Absolute lifesavers.”
David Thompson
Self-Employed
“I’ve used Clearview for three BTL purchases now. They understand the portfolio landlord criteria inside out and always find competitive products. Professional, fast, and genuinely knowledgeable.”
Emma Collins
Buy-to-Let Investor
“Selling and buying at the same time felt overwhelming, but Clearview coordinated everything with our solicitor and estate agent. They even helped us port our existing deal. Brilliant service from start to finish.”
Michael & Laura Reed
Moving Home
“I had a CCJ from years ago and thought I’d never get a mortgage. Clearview matched me with a specialist lender and I’m now a homeowner. They treated me with respect and never judged my situation.”
Rachel Okonkwo
Bad Credit Mortgage
“Clearview made the whole mortgage process so much less stressful. Ali explained every step, found us a rate we didn’t think was possible, and kept us updated throughout. We completed in just five weeks.”
Sarah Mitchell
First-Time Buyer
“We were on our lender’s SVR paying way too much. Clearview found us a fixed deal that saved us over £300 a month. The whole switch was handled for us — couldn’t recommend them enough.”
James & Priya Patel
Remortgage
“As a contractor I’d been turned down twice before. Clearview knew exactly which lenders to approach and how to present my income. Got approved first time with a great rate. Absolute lifesavers.”
David Thompson
Self-Employed
“I’ve used Clearview for three BTL purchases now. They understand the portfolio landlord criteria inside out and always find competitive products. Professional, fast, and genuinely knowledgeable.”
Emma Collins
Buy-to-Let Investor
“Selling and buying at the same time felt overwhelming, but Clearview coordinated everything with our solicitor and estate agent. They even helped us port our existing deal. Brilliant service from start to finish.”
Michael & Laura Reed
Moving Home
“I had a CCJ from years ago and thought I’d never get a mortgage. Clearview matched me with a specialist lender and I’m now a homeowner. They treated me with respect and never judged my situation.”
Rachel Okonkwo
Bad Credit Mortgage
Your next steps
Continue Your Mortgage Journey
Now you understand LTV, here are the next steps to getting the best mortgage deal.
Learn About Remortgaging
You’re here — understand when to remortgage, what it costs, and how the process works.
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Crunch the Numbers
Use our repayment calculator to compare your current deal against new rates and see your potential savings.
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Check Your LTV
Calculate your current loan-to-value ratio to see which rate bands you qualify for with your built-up equity.
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Get Expert Advice
Speak to a Clearview broker who’ll compare remortgage deals from 90+ lenders and handle the whole process for you.
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