How Long Before Your Fixed Rate Ends Should You Start Remortgaging?

Understanding when to start remortgaging is an important part of managing your mortgage effectively. Many borrowers wait until their fixed rate ends before taking action, but this can limit options and potentially increase costs. In reality, lenders often allow applications several months in advance, giving borrowers the opportunity to secure a new deal before moving onto a higher standard variable rate.

Knowing the right timing can help avoid unnecessary interest charges, reduce stress, and give more choice over available mortgage products. The process involves lender criteria checks, affordability assessments, and timing considerations that vary depending on individual circumstances. Starting too late could mean fewer options, while starting too early may restrict flexibility.

This guide explores when to start remortgaging, how lenders assess applications, and what factors can influence timing. It also looks at practical scenarios and common questions to help you better understand the remortgaging timeline in the UK.

When to start remortgaging before your fixed rate ends

Most lenders allow borrowers to begin the remortgaging process around three to six months before their fixed rate ends.

This window exists because mortgage offers are typically valid for a limited period, often between three and six months. Applying within this timeframe allows the new deal to begin as soon as the current one expires. Lenders will assess income, credit history, and property value during this stage, just as they would for a new mortgage application.

Starting early can provide access to a wider range of deals, particularly if interest rates are changing. Borrowers may be able to secure a rate in advance, which can be beneficial if rates are expected to rise. However, the availability of products may vary depending on market conditions and lender policies.

Delaying the process until the fixed rate ends may result in automatically moving onto the lender’s standard variable rate (SVR), which is often higher. This can increase monthly payments and reduce affordability until a new deal is arranged.

Why timing matters when remortgaging

The timing of a remortgage can affect both the interest rate available and the overall cost of borrowing.

Lenders regularly update their mortgage products in response to market conditions, including changes in the Bank of England base rate. Applying at the right time may allow borrowers to lock in a more competitive rate, particularly in a rising interest rate environment.

In addition, starting the process early gives more time to resolve any issues that might arise during underwriting. This could include providing additional documents, addressing credit file discrepancies, or meeting specific lender requirements.

Waiting until the last minute can create pressure and reduce flexibility. Borrowers may have fewer product options available or may need to accept less favourable terms to avoid reverting to a higher SVR.

How lenders assess remortgage applications

Lenders assess remortgage applications using similar criteria to those used for new mortgage applications.

Affordability is a key factor. Lenders will review income, outgoings, and existing financial commitments to ensure the mortgage remains manageable. Stress testing may also be applied to check whether repayments would still be affordable if interest rates increased.

Credit history also plays an important role. A strong credit profile may improve access to better rates, while missed payments or high levels of unsecured debt could limit options. Lenders may also review employment status, especially for self-employed applicants or those with variable income.

Property valuation is another consideration. Changes in property value can affect loan-to-value (LTV) ratios, which in turn influence available mortgage deals. A higher property value may unlock more competitive rates, while a lower value could reduce options.

Can you secure a mortgage deal in advance?

Yes, many lenders allow borrowers to secure a new mortgage deal several months before their current one ends.

This process is often referred to as a “rate lock” or securing a mortgage offer in advance. It enables borrowers to fix a new rate ahead of time, providing certainty about future repayments. This can be particularly useful during periods of interest rate volatility.

Mortgage offers typically come with an expiry date, so timing is important. If the offer expires before the current deal ends, a new application may be required. This could involve updated affordability checks and potentially different product options.

Some lenders may also allow borrowers to switch to a new deal without a full application, especially when staying with the same lender. However, criteria and processes vary, so it is important to understand how each lender operates.

Risks of remortgaging too early or too late

Starting the remortgaging process either too early or too late can have financial implications.

Remortgaging too early may result in early repayment charges (ERCs), which can be significant depending on the terms of the current mortgage. These charges are designed to compensate lenders for ending a deal before the agreed period.

On the other hand, leaving it too late can lead to being moved onto a lender’s SVR. This rate is often higher than fixed or tracker deals, increasing monthly payments and potentially affecting affordability.

There is also a risk that delaying could reduce the range of available deals. Mortgage products can be withdrawn or repriced at short notice, particularly during periods of market uncertainty. Planning ahead can help reduce this risk.

Practical borrower scenario: planning a remortgage timeline

A typical borrower may begin exploring remortgage options around four months before their fixed rate ends.

For example, a homeowner with a five-year fixed rate due to end in October might start researching deals in June. At this stage, they may review current rates, check their credit report, and gather financial documents required for an application.

In July or August, they might submit a remortgage application. The lender would then assess affordability, carry out a property valuation, and issue a mortgage offer. If approved, the new deal could be scheduled to begin immediately after the existing one ends.

This approach allows time to address any issues that arise and helps ensure continuity between mortgage deals. It also reduces the likelihood of reverting to a higher SVR, which could increase monthly costs.

Other factors that can influence remortgaging timing

Several additional factors can affect when to start remortgaging.

Changes in personal circumstances, such as a new job, reduced income, or increased expenses, may influence affordability assessments. Lenders will consider these factors when reviewing applications, which could impact available deals.

Market conditions also play a role. Interest rates can change quickly, and this may affect the availability of mortgage products. Monitoring the market can help borrowers decide when to secure a new deal.

Property-related factors, such as renovations or changes in value, may also influence timing. For example, improving a property could increase its value and reduce the loan-to-value ratio, potentially unlocking better mortgage rates.

FAQ: When to start remortgaging

How early can you start remortgaging in the UK?

Many lenders allow remortgage applications three to six months before the current deal ends. This allows time to secure a new rate and complete the process without moving onto a higher variable rate.

What happens if you do not remortgage in time?

If no new deal is arranged, the mortgage typically moves onto the lender’s standard variable rate. This rate is often higher and can increase monthly repayments.

Can you remortgage before your fixed term ends?

It is possible, but early repayment charges may apply. These charges can make remortgaging early less cost-effective, depending on the circumstances.

Do you need a solicitor to remortgage?

Yes, legal work is usually required to transfer the mortgage from one lender to another. Many lenders offer free legal services as part of remortgage deals.

Does remortgaging affect your credit score?

Applying for a remortgage may involve a credit check, which can have a small temporary impact on your credit score. Maintaining a good credit history can help support future applications.

This guide provides general information only. Personalised mortgage advice should always come from a regulated mortgage adviser authorised by the Financial Conduct Authority.