Remortgage Guide UK: When Should You Switch?
Thousands of UK homeowners quietly overpay every month by sitting on their lender’s SVR. Here’s when and how to remortgage onto a better deal.
A remortgage means switching your existing mortgage onto a new deal. You can do that with your current lender, where it is usually called a product transfer or rate switch, or you can move to a different lender altogether. For most UK homeowners it is one of the simplest ways to cut a monthly payment or lock in a lower interest rate, and it also lets you release equity that has built up in the property over the years. Even so, millions of borrowers never get round to it and quietly overpay on their lender’s standard variable rate, the SVR.
The right moment to start looking is roughly three to six months before your current deal ends. Most fixed-rate and tracker deals run for two, three, or five years, and the day yours finishes you are moved automatically onto the lender’s SVR. That rate is almost always a good deal higher than the one you had been paying. On a £200,000 mortgage, even a single percentage point of difference can add more than £100 to your monthly payment, so it pays to sort this out before the switch happens.
Below you will find the main reasons people remortgage, how to check whether you have slipped onto your lender’s SVR, and what early repayment charges (the penalty for leaving a deal early, known as ERCs) mean for your timing. There is a walk-through of the remortgage process from application to completion, a look at how releasing equity works, and a breakdown of the costs to budget for. If you own your home and want to trim the monthly payment, or you are a landlord reshaping a portfolio, it should help you decide whether now is the time to switch.
When should you remortgage?
The usual trigger is simple: your current fixed-rate or tracker deal is about to end. The moment it does, you land on your lender’s SVR, which tends to run 1.5% to 3% higher than the rate you just left. On a £250,000 mortgage that gap can add £200 to £400 to what you pay each month.
The end of a deal is not the only reason to switch. If your property has gone up in value your loan-to-value (the size of your mortgage measured against what the home is worth, or LTV) drops, and a lower LTV opens up sharper rates. You might want to borrow more now that your income has risen, move from an interest-only mortgage to a repayment one, or fold higher-cost debts into the mortgage at a lower overall rate. Some people remortgage to release equity too, whether that is for home improvements, a deposit on a second property, or a hand to a family member buying their first.
The usual trigger is simple: your current fixed-rate or tracker deal is about to end. The moment it does, you land on your lender’s SVR, which tends to run 1.5% to 3% higher than the rate you just left. On a £250,000 mortgage that gap can add £200 to £400 to what you pay each month.
The end of a deal is not the only reason. Maybe your property is worth more than you paid, which lowers your LTV and brings better rates within reach. Maybe you want to borrow more, change your rate type, or release some equity.
Your property value has increased
- A higher property value means a lower LTV. That can nudge you into a better rate band and save thousands across the mortgage term.
You want to reduce monthly payments
- Moving off the SVR onto a fixed or tracker rate can noticeably cut your monthly outgoings, so more of your money stays with you instead of the lender.
You want to release equity
- Borrowing a bit more than you currently owe lets you take some of your home’s equity as cash, for renovations or another big expense.
You want payment certainty
- A fixed rate shields you from future interest rate rises. Your payment then stays the same for the whole fixed period.
The SVR trap: why it costs you money
Your lender’s standard variable rate, the SVR, is the fallback rate you drop onto once your introductory deal runs out. A fixed or tracker rate is locked or pegged to something; the SVR is neither, so the lender can move it whenever it likes. Most UK SVRs sit between 6% and 8%, while competitive fixed rates often land between 4% and 5.5%.
UK Finance mortgage data shows hundreds of thousands of UK borrowers sitting on their lender’s SVR right now, plenty of them without realising it. Some assume the rate carries on unchanged once the fixed period ends; others simply keep putting off the paperwork. Left alone, that gap adds up to a serious sum over the years you have left to pay.
Your lender’s standard variable rate, the SVR, is the fallback rate you drop onto once your introductory deal runs out. A fixed rate or tracker is locked or pegged to something; the SVR is neither, so the lender can move it whenever it likes. Most UK SVRs sit between 6% and 8%, while competitive fixed rates often land between 4% and 5.5%.
SVR vs fixed rate on a £200,000 mortgage (25-year term)
| Fixed rate at 4.5% | SVR at 7.25% |
|---|---|
| Monthly payment: £1,111 | Monthly payment: £1,440 |
| Annual cost: £13,332 | Annual cost: £17,280 |
| Rate guaranteed for deal period | Rate can rise at any time |
| Total interest (2-year fix): £17,064 | Total interest (same 2 years): £28,176 |
Two years on an SVR rather than a competitive fixed rate could cost you over £11,000 in extra interest on a £200,000 mortgage.
Early repayment charges explained
An early repayment charge, or ERC, is the penalty your lender applies if you clear or overpay your mortgage before the deal period is up. It usually works out at 1% to 5% of the balance you still owe, and it tends to shrink with each year you stay put. A five-year fix, for instance, might start at a 5% charge in year one and taper to 1% by year five.
On a £250,000 mortgage a 3% ERC comes to £7,500, which can swallow whatever you would have saved by moving to a lower rate. That is exactly why it helps to line your remortgage up with the end of your current deal. Most lenders let you apply for the next one up to six months ahead, so the new mortgage can start the very day the old deal expires and you dodge both the ERC and the SVR.
An early repayment charge, or ERC, is the penalty your lender applies if you clear or overpay your mortgage before the deal period is up. It usually works out at 1% to 5% of the balance you still owe, and it tends to shrink with each year you stay in the deal. Our guide on when to remortgage goes deeper into timing.
Typical ERC costs on a £250,000 mortgage
Start your remortgage early
Most lenders let you apply for a new deal three to six months before your current one runs out. You can lock a rate in now without triggering an ERC, and the new deal simply picks up the moment the old one ends.
The remortgage process step by step
Remortgaging is usually quicker and less involved than arranging your first mortgage was, particularly when you are staying in the same home. Reckon on four to eight weeks from application to completion, and often less if you do a product transfer with your existing lender.
The paperwork looks much like a fresh application: proof of income such as payslips (or SA302 forms if you are self-employed), recent bank statements, ID, and the details of your current mortgage. A broker can take on most of the legwork and, just as usefully, compare the whole market for you rather than only your lender’s retention deals.
Remortgaging is usually quicker and less involved than arranging your first mortgage was, especially when you are staying in the same home. Most cases run four to eight weeks from application to completion. For a closer look at each stage, see our guide to remortgaging.
How a remortgage works
- 01
Review your current deal
Note when your deal ends, the rate you are on, the balance still owing, and whether any ERC would apply. Dig out your latest mortgage statement.
- 02
Speak to a broker
A whole-of-market broker weighs up deals from 90+ lenders to match the best rate to your LTV, income, and situation. At Clearview that advice is free.
- 03
Submit your application
Your broker sends off the application with your documents. The new lender then arranges a property valuation, which is often free on a remortgage.
- 04
Solicitor and legal work
A solicitor takes care of the legal transfer from one lender to the other. Plenty of remortgage deals include this legal work free as part of the package.
- 05
Completion
The new lender clears your old mortgage and your new deal starts. From there your monthly payment reflects the new rate and term.
Releasing equity through a remortgage
If your home is worth more than when you bought it, or you have chipped away a good chunk of the balance, you have probably built up real equity, the share of the property you own outright. Borrowing more than you currently owe when you remortgage lets you take some of that equity as cash, perhaps for home improvements, a deposit on another property, or another large expense.
Take a worked example. Your home is worth £350,000 and you owe £200,000, so you hold £150,000 of equity, an LTV of 57%. Remortgage for £250,000 and your LTV moves to 71%, still comfortably inside the best rate bands, and £50,000 comes back to you as cash. The thing to weigh up is that you pay interest on that extra borrowing for the rest of the mortgage term, so it is worth working out what the released money really costs over time.
If your home is worth more than when you bought it, or you have paid down a good part of the balance, you may have built up real equity. Borrowing more than you currently owe lets you release some of that equity as cash. Our LTV calculator will show you where your equity stands today.
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.
Costs involved in remortgaging
Remortgaging tends to pay off over time, but there are some upfront costs to plan for. Many lenders soak up a fair few of them with fee-free deals, free valuations and free legal work, so the trick when you compare offers is to add up every charge, not just the headline rate. A broker can help you judge whether a lower rate with bigger fees beats a slightly higher rate with none.
The usual ones are the arrangement fee (around £500 to £2,000, and often addable to the loan), the valuation fee (£150 to £500, frequently waived), solicitor or conveyancer fees (£300 to £1,000, often covered free by the lender), plus any early repayment charge on your existing deal. You pay no stamp duty on a remortgage, because you are not buying a new property.
Remortgaging usually pays off over time, but there are upfront costs to plan for. A broker can help you judge a lower rate with bigger fees against a slightly higher rate with none. Our repayment calculator lets you compare the monthly cost of different deals side by side.
Typical remortgage costs
Lender fees
- Arrangement fee: £500 to £2,000, and often addable to the loan
- Valuation fee: £150 to £500, frequently waived by lenders
- Early repayment charge: 1% to 5% of the loan balance, and only if you leave a deal early
Other costs
- Solicitor fees: £300 to £1,000, often included free by the new lender
- Broker fee: varies, though Clearview charges no upfront broker fee
- Stamp duty: £0, since there is no SDLT on a remortgage when you are not buying
Plan your repayments
Related guides
- 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 probably grown since you bought, so see how a lower LTV brings better rates within reach.
- 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.
Frequently asked questions
- Regulator
- FCA register
- Updated
- 24 February 2026
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