Remortgaging at the End of a Fixed Rate: Timing Matters

When your fixed-rate mortgage deal ends, you don't simply carry on with the same monthly payment.

Your lender will move you onto their Standard Variable Rate (SVR), which is almost always significantly higher than the rate you've been paying.

This transition can add hundreds of pounds to your monthly outgoings overnight.

Yet many borrowers leave this to the last minute, or worse, assume their lender will automatically offer them the best available deal.

Neither assumption is correct.

This guide explains exactly when to act, what the process involves, and how to avoid the most costly mistakes.

The SVR Trap: What Happens If You Do Nothing

The Standard Variable Rate is a lender's default rate, and it's not tied to the Bank of England base rate in any direct way.

Lenders set their SVR commercially, and they use it as a profit centre for inactive or disengaged borrowers.

As of 2024, typical SVRs range from 7.5% to over 9%, whilst competitive new fixed rates might sit between 4% and 5.5% depending on loan-to-value and market conditions.

On a £200,000 repayment mortgage over 25 years, the difference between a 5% rate and an 8% SVR is approximately £370 per month, or £4,440 per year.

This is not a trivial sum, and it accumulates quickly if you remain on the SVR for months whilst sorting out a new deal.

Lenders rely on inertia.

They know that a significant proportion of borrowers will simply accept the SVR or take the first product transfer offer presented to them without shopping around.

This behaviour costs UK borrowers billions collectively each year.

The only way to avoid it is to treat the end of your fixed rate as a scheduled financial event requiring action, not something that happens to you passively.

When to Start Looking: The Critical Window

Most borrowers assume they should wait until their fixed rate is about to end before looking for alternatives.

This is a mistake.

Mortgage offers are typically valid for between three and six months from the date of application.

This means you can secure a rate now and have it waiting in the wings for when your current deal expires.

If rates rise in the interim, you're protected.

If rates fall, you can often switch to a cheaper deal before completion, though this depends on the lender's specific policies.

The optimal time to start the remortgage process is four to six months before your fixed rate ends.

This window provides sufficient time to compare deals, submit an application, complete the valuation and legal work, and have everything lined up for a seamless transition.

Starting earlier than six months may mean the offer expires before your current deal ends, requiring a fresh application.

Starting later than three months creates unnecessary pressure and increases the risk of slipping onto the SVR, even if only for a few weeks.

Product Transfer vs New Lender Remortgage

When remortgaging, you have two main paths: staying with your current lender via a product transfer, or switching to a new lender.

Each has distinct advantages and trade-offs.

A product transfer is administratively simpler.

There's typically no valuation required, no legal work, and the process can often be completed online or over the phone in under an hour.

Your current lender may offer you a selection of deals, and some lenders allow existing customers to switch up to 90 days before their current rate ends without penalty.

However, product transfers are not automatically the best deal.

Your existing lender has no incentive to offer you their most competitive rates because they already have your business.

They may offer rates that are 0.2% to 0.5% higher than what new customers could access elsewhere.

Over a two or five-year fix, this difference compounds.

On a £250,000 mortgage, a 0.3% rate difference amounts to roughly £750 per year in additional interest.

Product transfers are convenient, but convenience has a price.

Switching lenders opens up the full market.

You can access better rates, different terms, and features that your current lender may not offer.

The trade-off is that you'll need to pass affordability checks again, provide up-to-date documentation, and pay for a valuation and legal work.

Many lenders offer "free" legal work and valuations as part of their remortgage package, but these incentives are typically reserved for loans above a certain threshold, often £100,000 or more, and may not apply to flats or non-standard construction properties.

Loan-to-Value: Why Your Equity Matters

The loan-to-value ratio is one of the most significant factors in determining the rate you'll be offered.

LTV is simply your outstanding mortgage balance divided by your property's current value, expressed as a percentage.

Lower LTV bands attract better rates because there's less risk to the lender.

The key thresholds are 60%, 75%, 80%, 85%, 90%, and 95%.

Crossing one of these thresholds, even by a small margin, can unlock significantly cheaper deals.

If you've been in your property for several years, two things have likely happened.

First, you've paid down some of the capital, reducing your loan balance.

Second, property prices may have risen, increasing your property's value.

Both factors reduce your LTV.

A borrower who took out a 90% LTV mortgage five years ago might now be at 70% LTV purely through capital repayment and house price growth.

This is a substantial improvement in equity position and warrants a thorough review of available deals.

Note that these rate ranges are indicative and fluctuate with market conditions.

The key point is the step-change between bands.

Moving from 85% LTV to 75% LTV can reduce your rate by 0.3% to 0.5%, which translates to meaningful savings over the fix period.

If you're close to a threshold, it may be worth using savings to make a small overpayment before remortgaging to push yourself into the cheaper band.

The savings over the fix term may exceed the interest you'd earn on those savings in a bank account.

Affordability Checks: What Lenders Actually Assess

When you remortgage with a new lender, you're effectively applying for a new mortgage.

This means passing affordability checks under the current regulatory framework.

Lenders must assess not just whether you can afford the mortgage now, but whether you could cope if interest rates rose significantly.

This stress test typically involves checking affordability at a rate 3% to 4% higher than the revert rate, though the specific requirements have evolved since the Financial Policy Committee adjusted its guidance in 2022.

Income assessment is more rigorous than many borrowers expect.

For employed applicants, lenders typically require the last three months' payslips and the latest P60.

Some lenders will accept two years' SA302 tax calculations for self-employed applicants, but many require three years, and the calculation methods vary.

Some average the years, some take the latest year only, and some apply a deduction for tax and National Insurance before calculating the figure they'll use.

If your income has dropped in the most recent year, this can significantly reduce the amount you can borrow.

Outgoings matter too.

Lenders will look at your bank statements for the last three months and assess committed expenditure, including loans, credit cards, car finance, and child maintenance.

They'll also apply an expenditure model for essential living costs based on your household composition.

Discretionary spending isn't typically factored in directly, but regular payments such as subscriptions, gambling transactions, or large unexplained outgoings may prompt questions.

If your financial situation has changed since you took out your original mortgage, perhaps due to a new job, reduced hours, or increased family commitments, it's worth running the numbers before applying.

The True Cost of Remortgaging: Fees Breakdown

The headline rate is not the full picture.

Mortgage products come with a range of fees that affect the true cost of the deal.

The most common is the arrangement fee, sometimes called a product fee or booking fee.

This can range from zero to nearly £2,000, and it's typically added to the loan balance rather than paid upfront.

Adding fees to the loan increases the amount on which interest is charged, so a low-rate deal with a high fee may cost more over the term than a slightly higher-rate deal with no fee.

Valuation fees apply when switching lenders, though many remortgage packages include a free standard valuation.

Be aware that a standard valuation is for the lender's benefit, not yours.

It confirms the property provides adequate security for the loan but doesn't identify defects or maintenance issues.

If you want assurance about the property's condition, you'd need to commission a separate homebuyer report or building survey at your own expense.

Legal fees are required when switching lenders because the new lender's charge must be registered at the Land Registry and the old lender's charge removed.

Again, many remortgage packages include "free" legal work, but this typically uses a panel solicitor chosen by the lender.

If you want to use your own solicitor, you'll usually pay, and the costs may not be significantly different from the "free" option once disbursements such as Land Registry fees and search fees are factored in.

For straightforward remortgages, the legal process is largely administrative and can often be handled efficiently by the lender's panel firm.

Broker fees are another consideration.

Some mortgage brokers charge a fee, typically £300 to £500, whilst others are paid by commission from the lender.

A good broker can access deals not available directly to consumers and may save you more than their fee costs, but this isn't guaranteed.

If you're financially literate and have a straightforward situation, you may not need a broker.

If your circumstances are complex, such as self-employment, adverse credit, or non-standard construction, a specialist broker can be invaluable.

Porting Your Mortgage: When Moving House Complicates Things

If you're planning to move house during or shortly after your remortgage, think carefully about the product you choose.

Most mortgages are portable, meaning you can transfer them to a new property when you move.

However, porting is not automatic.

You still need to pass affordability checks at the time of the move, and if you need to borrow additional funds for the new property, you'll need to qualify for a second mortgage or a larger single loan.

The problem arises if your circumstances have deteriorated since you took out the original mortgage.

If you're now earning less, have taken on additional debt, or if lending criteria have tightened, you may find yourself unable to port the mortgage.

In this scenario, you'd need to redeem the mortgage early, potentially triggering an early repayment charge.

Some lenders will waive ERCs if the mortgage cannot be ported due to a failed affordability check, but this is at their discretion and not guaranteed.

If you anticipate moving within the next few years, consider whether a shorter fix or a mortgage with no ERCs might be more appropriate, even if the rate is slightly higher.

Help to Buy and Equity Loan Considerations

If you purchased your property using the Help to Buy equity loan scheme, remortgaging has additional complexity.

The equity loan is a second charge on your property, registered behind your mortgage.

When you remortgage, the new lender needs to agree to take first charge position, and the Homes and Communities Agency (or its successors) must consent to the new arrangement.

This isn't usually problematic if you're not changing the loan amount and are simply switching to a new rate, but it adds administrative steps.

More significantly, if your property has increased in value, the equity loan amount may have increased too, because the government's share is a percentage of current value, not the original amount.

When you remortgage, you may need to have the property valued, and this could trigger a recalculation of the equity loan.

Some borrowers choose to remortgage and simultaneously repay part or all of the equity loan, but this requires significant capital and careful planning.

If you have a Help to Buy equity loan, seek advice from a broker or solicitor familiar with the scheme before initiating a remortgage.

Overpayments and Mortgage Flexibility

When selecting a new mortgage product, consider the overpayment flexibility you might need.

Most lenders allow overpayments of 10% of the outstanding balance per year without penalty, but this isn't universal.

Some restrict overpayments to 10% of the original loan amount, which is less generous as the mortgage reduces.

Others may allow higher overpayment limits or have no restrictions at all once the ERC period ends.

If you anticipate receiving lump sums, perhaps from bonuses, inheritance, or the sale of other assets, the ability to make significant overpayments without penalty matters.

Some lenders offer flexible facilities such as payment holidays, the ability to underpay, or offset accounts where savings reduce the interest charged on the mortgage.

These features typically come with slightly higher rates, so you need to weigh whether you'll actually use them.

A lower rate with a standard 10% overpayment allowance may be cheaper overall than a flexible mortgage with features you never utilise.

Common Mistakes to Avoid

The most common mistake is simply doing nothing.

Borrowers receive a letter from their lender informing them that their fixed rate is ending, perhaps with an offer of a product transfer, and they either ignore it or accept the first option presented.

This passivity is expensive.

Another mistake is focusing solely on the headline rate without considering fees, flexibility, and the total cost over the fix period.

A low rate with a £1,999 fee may be more expensive than a slightly higher rate with no fee, particularly on smaller loan amounts.

Applying too late is another frequent error.

If you leave it until a few weeks before your fixed rate ends, you may not complete in time and will slip onto the SVR.

Even a month on the SVR can cost hundreds of pounds.

Conversely, applying too early can mean your mortgage offer expires before your current deal ends, requiring a fresh application with new credit checks and potentially different rates.

The six-month validity period for mortgage offers is not a target; it's a maximum.

A less obvious mistake is not checking your credit file before applying.

Lenders will run a credit check as part of the mortgage application, and if there are errors, missed payments you'd forgotten about, or unfamiliar addresses on your file, this can cause delays or rejections.

Check your credit file with all three main agencies (Experian, Equifax, and TransUnion) at least three months before you plan to apply.

Disputing incorrect information takes time, and you don't want to discover a problem when you're already under time pressure.

"The best time to remortgage is not when your current deal ends, but when you can secure the most favourable terms for your next deal.

That might be three to six months before your fixed rate expires, and it might involve switching lenders rather than accepting the path of least resistance."

The Application Process: A Practical Timeline

Understanding the sequence of events helps you plan.

Six months before your fixed rate ends, start researching.

Use comparison websites, speak to a broker if appropriate, and identify a shortlist of potential deals.

Check your credit file and resolve any issues.

Five months out, if you're switching lenders, submit your application.

The lender will arrange a valuation, instruct a solicitor, and begin underwriting.

Four months out, respond promptly to any requests for additional documentation.

Three months out, the mortgage offer should be issued.

Review it carefully to ensure the terms match what you applied for.

Two months before your fixed rate ends, the legal work should be progressing.

Your solicitor will obtain a redemption statement from your current lender, confirming the amount needed to pay off the existing mortgage.

One month out, confirm the completion date.

If you're doing a product transfer with your existing lender, the process is much simpler and can often be completed in a single phone call or online session, but don't leave it until the last week.

Aim to have the new deal confirmed and scheduled to start the day after your current fix ends.

Remortgaging Checklist

Before you begin the remortgage process, work through this checklist to ensure you're prepared:

✅ Check the exact end date of your current fixed rate
✅ Confirm whether any early repayment charges apply beyond this date
✅ Request a redemption statement from your current lender
✅ Check your credit file with all three agencies
✅ Calculate your current LTV based on estimated property value
✅ Gather income documentation: payslips, P60s, SA302s as appropriate
✅ Prepare three months of bank statements
✅ Note any regular committed expenditure that may affect affordability
✅ Compare product transfer options from your current lender
✅ Research market rates from other lenders
✅ Decide whether to use a broker or apply directly
✅ Consider whether you need