What happens when your fixed-rate mortgage deal ends?
When a fixed mortgage period ends, the mortgage itself does not disappear. Unless you arrange another product, the loan normally moves to the lender’s standard variable rate under the mortgage terms.
Start reviewing options several months before the fixed deal expires. Compare your lender’s product-transfer offers with remortgage options elsewhere, including fees and loan-to-value. If you do nothing, you will normally move onto the lender’s SVR, which can be more expensive and can change over time.
The mortgage usually moves to the SVR
A fixed-rate mortgage keeps the interest rate stable for the agreed deal period, not for the full life of the mortgage. MoneyHelper explains that when the fix ends, the loan normally reverts to the lender’s standard variable rate unless you choose another deal. SVRs can be higher than fixed or tracker offers and can change at the lender’s discretion within the mortgage terms.
That means doing nothing is itself a financial choice. The payment can rise sharply even though the outstanding balance has fallen. Check the estimated payment on the SVR before the end date so you understand the cost of delay rather than discovering it on the first post-fix Direct Debit.
A product transfer can be the simplest option
Your existing lender may offer a new fixed or tracker product without moving the mortgage to another bank. A product transfer can involve less paperwork and may avoid a full property valuation or legal process, depending on the lender and circumstances. Existing-customer rates are not automatically the cheapest, so convenience needs a price comparison.
Ask when the lender allows you to reserve a new deal and whether you can switch to a cheaper option if rates fall before it starts. Rules differ. A deal that looks attractive six months out may not remain best by the completion date, and some lenders give more flexibility than others.
Remortgaging can widen the choice
Moving to another lender can offer a better rate or features, but it usually involves a fresh affordability assessment, credit checks and property valuation. Fees can include arrangement, valuation and legal costs, although many products bundle or subsidise some of them. Compare total cost over the deal period, not just the headline interest rate.
Loan-to-value matters because falling below a pricing threshold can unlock different products. An updated property value and the amount you have repaid may place you in a lower LTV band than when the old mortgage started. Conversely, a fall in property value can reduce the options available.
Start before the final month
MoneyHelper says borrowers can start talking to their lender around six months before a fixed deal ends. Beginning early gives time to compare products, resolve credit-report errors, gather income evidence and avoid an unnecessary period on the SVR. It also reduces the pressure to accept the first retention offer simply because the deadline is close.
If you plan to move home soon, expect a change in income or want to make a large overpayment, mention that before locking into another long fix. The best rate on a spreadsheet can be poor value if an early repayment charge later traps you in a product that no longer fits your plans.
Stress-test the next payment
Do not compare only the new payment with the old fixed payment. Test what the household budget looks like if rates are higher at the next reset, if childcare or energy costs rise, or if one income temporarily falls. Mortgage affordability should survive a reasonable amount of real-life volatility.
If the new payment is already difficult, contact the lender early rather than waiting for arrears. The options available before missed payments can be broader than those available after the account has fallen behind, and early contact gives you more time to take independent debt or mortgage advice where needed.
Fees can overturn a small rate advantage
A lower mortgage rate is not automatically the cheaper deal when arrangement fees are large. Divide the fee over the period you expect to keep the product and compare the total interest and costs with a fee-free alternative. Borrowers with smaller balances can find that a slightly higher rate plus no fee is cheaper overall.
Also check whether a product fee is paid upfront or added to the mortgage. Adding it to the loan avoids an immediate cash payment but means you can pay mortgage interest on that fee. The comparison should use the total cost on your expected balance and timeframe, not a generic best-buy ranking.
If your income or employment has changed since the mortgage began, a product transfer with the existing lender can sometimes be operationally easier than a full remortgage, but the exact criteria vary. Do not assume that convenience automatically means acceptance; ask what checks the lender will complete before relying on the offer.
Sources and verification
- MoneyHelper — Understanding mortgages and interest rates
- MoneyHelper — If you are worried about rising mortgages
Isabelle Reed — Personal Finance Writer
I treat the end of a fixed mortgage as a six-month project, not a date in the diary. The borrower has three broad possibilities: accept a new deal from the same lender, remortgage elsewhere, or drift onto the SVR. The third option is often the easiest administratively and the most expensive financially, which is why inertia matters so much here. I compare products using the total cost over the period I realistically expect to keep them, including arrangement fees and any incentives, not just the rate printed in large type. I also look at life plans. A five-year fix with a low rate can be poor value for someone likely to move or repay a large amount if the early repayment charge is restrictive. Starting early creates optionality: you can gather documents, understand your new loan-to-value, and see whether the lender lets you switch a reserved product before completion. Mortgage decisions are large enough that avoiding one unnecessary month on a high SVR can be worth more than hours spent comparing tiny differences between current accounts. I always convert the product fee into part of the rate decision. On a small remaining mortgage, a four-figure fee can overwhelm a tiny interest-rate saving; on a large balance, the same fee may be comparatively minor. Total pounds over the period are the useful comparison.
MyBankAnswers uses official provider and UK regulatory sources wherever practical. Information is general and does not constitute financial advice.