Remortgaging — switching to a new mortgage deal, either with your current lender or a different one — is one of the most financially impactful decisions a homeowner makes on a recurring basis. Allowing a fixed rate to expire onto the Standard Variable Rate is the most expensive passive decision in personal finance: in early 2026, SVRs sit around 7.5–8.5% versus best-buy fixed rates of 3.7–4.5%. On a £200,000 mortgage, that gap costs over £500 per month. The fix is straightforward — but it requires acting 3–6 months before your deal ends.
Why SVR exposure matters so much in 2026
Hundreds of thousands of UK homeowners are currently on SVR having not remortgaged after their fixed deal ended. The financial cost is significant and entirely avoidable.
That £525/month difference represents £6,300/year of avoidable cost — roughly the equivalent of a week's holiday abroad every month. The remortgage process takes 4–8 weeks and involves minimal disruption. There is no good reason to remain on SVR beyond the very short-term period between a fix expiring and the new deal beginning.
Product transfer vs full remortgage — which is right?
The right choice depends on the rate gap. If your current lender's product transfer rate is 0.3% above the best full remortgage rate, the saving may not justify the 6–8 weeks of process and legal costs. If it is 0.7% or more, a full remortgage almost certainly pays. A whole-of-market broker will run both comparisons for you and present the net saving after all costs.
Remortgage savings calculator
How much could you save by remortgaging?
Compare your current rate against the new deal — including all switching costs.
The remortgage timeline
Log into your mortgage account or check your original mortgage offer letter. Note the exact date your fixed rate ends and the ERC schedule (typically reduces over the fixed period and reaches zero on the expiry date). Most lenders allow you to lock in a new rate up to 6 months before the end of the current deal.
A broker compares your current lender's product transfer rate against the full remortgage market and presents the most cost-effective option. Many fee-free brokers are paid by the lender — there is no charge to you for the comparison and advice. Instruct your broker early to give time for the full remortgage process if switching lenders is the better option.
Most lenders hold the offered rate for 3–6 months. By locking in now, you are protected against any rate increases in the months before your fix expires, while still benefiting if rates fall (in which case you can ask your broker to switch to a better product if available).
Your broker submits the remortgage application. Documentation required: latest mortgage statement, 3 months' payslips, 3 months' bank statements, and proof of buildings insurance. A valuation is instructed by the new lender (free for most remortgage products).
If switching lenders, your solicitor redeems the old mortgage on the same day the new lender releases funds. The process is usually seamless from your perspective — your direct debit changes to the new lender's details. If doing a product transfer, the new rate simply activates on the agreed date with no legal involvement.
Remortgage costs — what to budget
| Cost | Product transfer | Full remortgage | Notes |
|---|---|---|---|
| Legal fees (solicitor) | None | £0–£500 | Many remortgage products include free legal. Some charge £300–£500 for their panel solicitor. |
| Arrangement fee | £0–£999 | £0–£2,000 | Can be added to mortgage balance — increases total interest cost. Compare total cost with and without fee. |
| Valuation | None | £0–£300 | Most remortgage deals include free valuation. Charged on some products or complex properties. |
| Early repayment charge | Varies | Varies | Only if leaving your fix early. 1–5% of outstanding balance depending on how early you exit. Check your mortgage offer for your exact schedule. |
| Exit fee (deeds release) | None | £0–£300 | Some lenders charge a small exit fee to release the title deeds. Increasingly rare. |
| Typical total (no ERC) | £0–£500 | £0–£2,500 | Many remortgages are completed at zero or near-zero cost — the arrangement fee is often offset by the rate saving within months. |
Remortgaging to release equity
If your property has appreciated in value since purchase, remortgaging at a higher loan amount releases the equity as cash — without selling. This is common for homeowners funding home improvements, consolidating debts, or raising money for other purposes.
The released equity is a loan — it must be repaid as part of the new mortgage. Monthly payments increase on the higher loan amount. The new lender will assess affordability on the total new loan, not just the additional borrowing. Equity release for home improvements typically increases property value and can be a strong financial decision; equity release to consolidate unsecured debt converts short-term debt to long-term mortgage debt — assess the total interest cost carefully before proceeding.
Rolling credit card or personal loan debt into a mortgage lowers your monthly payment — but typically increases total interest paid significantly because the debt is now spread over 20+ years at a mortgage rate rather than 3–5 years at a higher rate. Before consolidating, calculate the total interest cost of both options. In many cases, a personal loan balance of £10,000 that would cost £1,800 in total interest paid off over 3 years costs £5,000–£8,000 in mortgage interest when consolidated into a 20-year mortgage — even at the lower rate.
Frequently asked questions
Can I remortgage if my property has fallen in value?
Yes, but your options may be more limited. If your LTV has increased — because the property is worth less than when you originally mortgaged — you may not qualify for the same rate tier as before. If you are now above 90% LTV, the rate you access will be higher than at 75–85% LTV. If you are in negative equity (property worth less than the outstanding mortgage), standard remortgaging is very difficult — your current lender's product transfer may be the only realistic option, as they already have the existing charge on the property. Product transfers do not typically require a new valuation, so the LTV constraint does not apply in the same way.
Does remortgaging affect my credit score?
A full remortgage application involves a hard credit search, which temporarily reduces your credit score by a small amount (typically 5–10 points) for a few months. This is normal and expected — mortgage lenders understand that borrowers regularly remortgage and do not view these searches negatively in context. A product transfer with your existing lender typically does not involve a hard credit search. Multiple hard searches in a short period (applying to several lenders simultaneously) does have a more noticeable impact — use a single broker who identifies the right lender before submitting any application.
How long does a remortgage take?
A product transfer with your current lender can be completed within a few days — sometimes instantly online. A full remortgage switching to a new lender typically takes 4–8 weeks from application to completion. The main variables are: the lender's underwriting speed, whether the valuation raises any queries, and how quickly the solicitors on both sides exchange and redeem. Starting 3–6 months before your current fix ends gives ample time for a full remortgage process with several weeks' margin for unexpected delays.
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