Break even in 12 months? A UK remortgage example with real numbers

Remortgaging means replacing your existing mortgage with a new deal, either with your current lender or a different one, without moving house. Take a mortgage balance on a property: switching to a new lower interest rate on a similar term could reduce your monthly payment by a notable amount, saving you money each month. The exact figures below depend heavily on your balance, term and fees.

• Switching to a lower interest rate can save hundreds of pounds monthly, especially when keeping the same or shortening the mortgage term, but fees may offset initial savings.
• Releasing equity usually increases monthly payments and interest costs over the loan's life, even with a modest cash release, due to additional interest on the borrowed sum.
• Consolidating unsecured debts into a mortgage can lower monthly outgoings but often results in higher total interest and extended repayment periods.
• Fully comparing remortgage deals requires adding fees like early repayment charges, valuation, legal, and broker costs, as these can outweigh rate savings within the break-even period.
• Starting the remortgage process three to six months before your current deal ends ensures sufficient time for valuations, applications, and legal work, avoiding the default onto higher variable rates.

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What is a remortgage example that shows the real numbers?

Numbers make remortgaging click faster than any explanation. Below are three realistic scenarios covering the situations most UK homeowners actually face: cutting the rate, releasing equity, and consolidating debt. Each one lists its assumptions in full, because a slightly different balance, term or fee changes the outcome more than most people expect.

Example A: swapping to a lower rate involves an outstanding mortgage balance with a certain term and a switch from a higher interest rate to a lower fixed rate with product fees added, resulting in a reduced monthly payment and interest savings over the fixed period.

That saving assumes you keep the same 20-year term. Run a second version where you shorten the term to 17 years instead, keeping the payment roughly the same as before, and you clear the mortgage three years earlier while paying a similar amount each month. Comparing both versions matters, because a lower rate can be used to cut your bill or cut your mortgage term, and lenders rarely spell out which one their headline figures assume, a point echoed in Which?'s guidance on modelling different remortgage scenarios.

Example B: releasing equity

Assumptions: current property value £320,000 (checked against recent sales using Land Registry price paid data); outstanding balance £180,000; you want to release £30,000 for home improvements; new loan amount £210,000; new loan to value (LTV) 65.6%; rate on the new deal 4.5% over 22 years.

The maths here is straightforward. Your current LTV is 56.25% (£180,000 against £320,000). Adding £30,000 pushes the new loan to £210,000, moving your LTV to 65.6%, still comfortably within most lenders' better pricing bands. Monthly payments rise from roughly £1,196 (on the old balance at a comparable rate) to about £1,381 on the enlarged £210,000 loan. You get £30,000 in cash, but you also pay interest on that sum for the life of the mortgage, which on a 22-year term at 4.5% adds close to £16,500 in extra interest over and above the £30,000 borrowed. Releasing equity is rarely "free money", and treating it as such is one of the costliest misreadings of a remortgage.

Example C: consolidating debt or switching mortgage type

Assumptions: mortgage balance £150,000; unsecured debts (credit cards, a car loan) totalling £12,000 at an average 19.9% APR; new mortgage balance after consolidation £162,000; new rate 4.3% fixed for two years, switching from a variable-rate deal.

Statistic: Early repayment charges on a variable or fixed deal you leave early are commonly 2% to 5% of the outstanding loan, according to MoneySavingExpert's remortgage guidance, which on a £150,000 balance could mean a charge of £3,000 to £7,500.

Consolidating that £12,000 of debt into your mortgage cuts the monthly outlay sharply. Instead of paying off the credit cards at a punishing 19.9%, you're now paying mortgage-rate interest on the same sum, spread over decades rather than a few years. Consolidation eases pressure now; it rarely reduces the total cost of the debt. An affordability check also matters here: lenders will stress-test the new, larger loan against your income, and pushing your LTV or debt-to-income ratio too high can limit which fixed-rate or variable-rate remortgage deals are open to you.

What is a remortgage and how does it differ from a product transfer?

A remortgage replaces your existing mortgage with a new one, either by switching lender entirely or by taking a new deal with your current lender, known as a product transfer. Both routes achieve the same broad goal, a new interest rate and terms on the debt secured against your home, but they work quite differently underneath.

Switching lender means a full mortgage application: credit checks, income verification, a property valuation, and legal work through a conveyancer. A product transfer skips most of that because your existing lender already holds your valuation and file data, which makes it faster and usually cheaper to arrange. The trade-off is that product transfers aren't always the best rate on the market. Your current lender has little incentive to offer you their sharpest deal when you're not shopping around, so it's worth comparing the transfer rate against what a broker can find elsewhere before assuming it's the easy win.

Both scenarios usually get triggered by the same event: your fixed or discounted deal is ending. Once it does, most lenders automatically move you onto their standard variable rate, or SVR, which tends to sit well above the rates available on fixed deals. This "SVR trap" is the single biggest reason homeowners remortgage, and it's entirely avoidable if you start looking before your current deal expires rather than after.

Why do homeowners remortgage, and how does that shape what to look for?

Your reason for remortgaging should decide what you prioritise in a new deal. Chasing the lowest headline rate makes sense if you're purely trying to cut monthly costs, but it's the wrong lens entirely if your goal is releasing cash or shortening your mortgage term.

• Better rate: the most common motivation, usually triggered by a fixed deal ending and the SVR kicking in; prioritise the lowest total cost over the fixed term, not just the interest rate.
• Releasing equity: for home improvements, a deposit for a second property, or major expenses; prioritise the LTV band you'll land in, since crossing a threshold (say, from 60% to 75% LTV) can push you into a noticeably higher rate.
• Debt consolidation: rolling unsecured debt into your mortgage; prioritise the total interest over the full remaining term, not the improved monthly cash flow.
• Changing mortgage type or term: moving from variable to fixed, or shortening the term to be mortgage-free sooner; prioritise affordability under the new, higher monthly payment a shorter term usually brings.

Pro Tip: *If your current deal still has more than six months to run, check the early repayment charge before you get excited about a new rate elsewhere.

Remortgaging isn't always the right move. If your property value has fallen since you bought, pushing your LTV higher than expected, you may find the rates on offer are worse than your current deal, not better. If you're close to the end of your term with a small balance remaining, the fees involved can outweigh any saving, as MoneyHelper's guidance on cutting costs through remortgaging makes clear when it comes to comparing total cost rather than the rate alone.

What fees do you need to include before you compare deals?

The rate you're quoted is never the full picture. Fees can turn an apparently cheaper deal into a more expensive one once you run the actual numbers, and the only way to compare fairly is to add everything up over the fixed term, not just glance at the interest rate.

• Early repayment charges (ERCs): commonly 2% to 5% of your outstanding balance if you leave a fixed or discounted deal before it ends, according to MoneySavingExpert; on a £200,000 loan that's £4,000 to £10,000, often enough to cancel out any saving from switching early.
• Arrangement or product fees: typically £0 to £1,999, though many of the best rates carry a fee somewhere in the £500 to £1,000 range; these can usually be added to the loan, but doing so means paying interest on the fee itself.
• Valuation fees: many lenders now offer free valuations as part of the deal, but some charge £150 to £300, particularly for higher-value properties.
• Legal and conveyancing fees: cover the transfer of the legal charge to your new lender; fixed-fee conveyancing for a straightforward remortgage typically runs from £100 to £300, though this varies by property and lender requirements.
• Broker fees: some brokers charge £300 to £500 for arranging the deal, though many operate on lender commission instead.

Statistic: MoneyHelper is explicit that the right comparison is total cost over the fixed term, including every fee, not the headline rate in isolation, because a 4.1% deal with a £1,999 fee can cost more overall than a 4.4% deal with no fee at all on a smaller balance.

To find your break-even point, add up all the fees for the new deal, then divide by your monthly saving versus your current payment. If the fees total £1,500 and you're saving £125 a month, you break even in 12 months. Anything beyond that point is genuine saving; anything before it, you're paying to switch.

How do you remortgage your house, step by step?

Timing drives everything here. Start too late, and you fall onto the standard variable rate before your new deal completes. Rightmove recommends beginning the process three to six months before your current deal ends, which gives enough breathing room for valuations, underwriting, and legal work to happen without a rush.

1. Research the market, ideally with a broker, comparing both new-lender deals and your current lender's product transfer offer side by side. 2. Get an Agreement in Principle (AIP), a soft-check estimate of what a lender will lend you, based on your income and credit profile. 3. Submit the full application, including payslips, bank statements, proof of ID, and details of your existing mortgage. 4. Valuation and underwriting, where the lender assesses the property and confirms your affordability under their own stress tests. 5. Instruct a conveyancer to handle the legal transfer of the mortgage charge, particularly important if you're switching lender rather than doing a product transfer. 6. Completion, when the new mortgage funds are released, your old lender is repaid, and your new deal begins.

Most straightforward remortgages complete in four to eight weeks from application, though delays are common when valuations are slow, when lenders request additional documents, or when there's a change in your circumstances mid-application, a new job, for instance, or a dip in your credit score. Speaking of which: a remortgage application involves a hard credit check, and multiple applications in a short window can temporarily dent your score, so it pays to have your paperwork ready before you apply rather than making speculative applications to several lenders at once.

Where does conveyancing fit into a remortgage?

A conveyancer or solicitor handles the legal side of transferring your mortgage charge, checking the title, dealing with the Land Registry, and liaising with both your old and new lender to make sure the old mortgage is repaid and the new one registered correctly. You, the borrower, pay for this, either as a separate fixed fee or sometimes bundled into a "legal fees included" mortgage deal.

• Fixed-fee conveyancing for a remortgage typically costs less than a full purchase, since there's no chain, no exchange of contracts between buyer and seller, and far less back-and-forth negotiation.
• Choosing an SRA- or CLC-regulated firm removes the guesswork over whether the solicitor is properly qualified and insured.
• An instant, fixed-fee quote removes the uncertainty of hourly billing, so you know your legal cost before you commit to a lender.
• Have your property address, outstanding mortgage balance, and new lender details ready; that's usually enough to get a quote instantly.

A cheap headline mortgage rate paired with an expensive or slow conveyancing bill can eat into the savings your remortgage was supposed to deliver, so it's worth pricing the legal side alongside the mortgage deal, not as an afterthought once you've already signed.

An experienced view on getting the sums right

Most people fixate on the headline rate and forget to run the total cost over the fixed term, fees included. That single habit, comparing the full picture rather than the percentage on the page, is what separates a remortgage that genuinely saves money from one that merely feels like progress. Run the numbers on both a same-term and a shortened-term basis before you decide, because a lower rate can quietly be steering you towards a longer payoff rather than a smaller bill.

Get quotes for the mortgage and the conveyancing at the same time. Treating the legal cost as a footnote is how homeowners end up disappointed by a saving that looked much bigger on paper than it turned out in practice.

Get an instant, fixed-fee conveyancing quote for your remortgage

A remortgage moves fast once the mortgage side is agreed, and the legal work shouldn't be the part that slows you down or springs a surprise bill. Conveyancing-solicitor matches you with SRA- or CLC-regulated firms offering instant, fixed-fee quotes, so you know the exact legal cost before you commit, with no hourly billing and no vague estimates. For remortgage work specifically, that fixed fee typically undercuts standard high-street rates by a wide margin, which matters when every pound of saving from your new mortgage deal counts.

Getting a quote takes a few minutes: enter your property details and current mortgage information, and you'll see fixed-fee options from vetted firms straight away. If you want the fuller cost breakdown first, read our guide on how much legal fees for a remortgage typically cost, then head over to get your instant conveyancing quote and lock in your legal costs before you complete.

This article is general information, not a substitute for advice from a qualified financial advisor. Consult a qualified financial professional about your own circumstances before acting on anything here.

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