Remortgage Guide 2026: When, Why and How
Remortgaging is the process of switching your mortgage to a new product — either with your existing lender (product transfer) or a different lender. Done at the right time, remortgaging is one of the most impactful financial decisions a homeowner can make, potentially saving thousands of pounds annually.
The Cost of Sitting on SVR
When your fixed or tracker deal ends, you automatically move to your lender's Standard Variable Rate (SVR). In 2026, SVRs are typically 6.5–8.5% — substantially above the rates available on new deals.
Example: £220,000 mortgage, 20 years remaining
| Rate | Monthly Payment | Annual Cost |
|---|---|---|
| SVR 7.5% | £1,763 | £21,156 |
| New 5-year fix 4.3% | £1,362 | £16,344 |
| Annual saving | £401 | £4,812 |
Over the 5-year deal period: £24,060 saved — simply by remortgaging proactively.
When to Start the Remortgage Process
Start 3–6 months before your current deal ends. Most mortgage offers are valid for 3–6 months from issue. Starting early lets you:
- Lock in a rate before your deal expires (so you never sit on SVR)
- Compare the market without time pressure
- Change your mind if rates fall before completion
Most lenders allow you to lock in a rate up to 6 months before your current deal ends, with no ERC (since you're not leaving early). This is called an "end of term remortgage."
Early Remortgage: Is It Worth Paying the ERC?
If you want to remortgage before your current deal ends (e.g., to access equity or get a lower rate), you may face Early Repayment Charges:
| Typical ERC Structure | ERC % |
|---|---|
| Year 1 of a 5-year fix | 5% |
| Year 2 | 4% |
| Year 3 | 3% |
| Year 4 | 2% |
| Year 5 | 1% |
Decision framework: Annual saving from switching × remaining years of deal > ERC cost → switch may be worthwhile.
Example: £220,000 outstanding, in year 3 of 5-year fix, potential annual saving £3,600
- ERC: 3% × £220,000 = £6,600
- Saving over remaining 2 years: £3,600 × 2 = £7,200
- Net benefit: £600 over 2 years — worth it, but marginal
Product Transfer vs Full Remortgage
| Option | Pros | Cons |
|---|---|---|
| Product Transfer (same lender) | Quick, no legal/survey costs, simple | May not offer best market rate |
| Full Remortgage (new lender) | Access to whole market, best rates | Valuation, legal fees, longer process |
A product transfer takes days; a full remortgage takes 4–8 weeks. A whole-of-market mortgage broker compares both and presents the best overall option including fees.
How Much Could You Save?
Your saving depends on:
- Current rate vs new rate
- Outstanding mortgage balance
- Remaining term
- Fees associated with the new deal
Impact of rate improvement by balance:
| Outstanding Balance | 1% rate improvement | 0.5% improvement |
|---|---|---|
| £150,000 | ~£125/month (£1,500/yr) | ~£60/month |
| £250,000 | ~£208/month (£2,500/yr) | ~£100/month |
| £400,000 | ~£333/month (£4,000/yr) | ~£160/month |
The Remortgage Process
Step 1: Check ERCs and mortgage remaining Know exactly when your current deal ends and whether any ERC applies.
Step 2: Assess your LTV House value ÷ outstanding balance = LTV. Every 5% LTV improvement typically unlocks a better rate tier. If your LTV has improved since purchase (through repayments or price growth), you may access significantly better rates.
Step 3: Use a mortgage broker Whole-of-market brokers save time and typically find better deals than going direct. Many are fee-free (paid by lender); fee-charging brokers may offer broader access.
Step 4: Submit application Lender checks affordability, credit, and property value (often automated valuation for remortgages). Many lenders offer free legal work for straightforward remortgages.
Step 5: Completion New lender pays off old lender. New deal starts from completion date. Typically takes 4–8 weeks from application for a full remortgage; days for a product transfer.
Using Remortgage to Access Equity
If your property has risen in value significantly, remortgaging to a higher loan allows you to release equity (capital raising). Common uses:
- Home improvements (often adds value to the property)
- Debt consolidation (caution: you are securing previously unsecured debt against your home)
- Helping children with deposits
Tax note: For buy-to-let landlords, capital raised through remortgage is not taxable — but interest on the additional borrowing may face Section 24 restrictions.
Frequently Asked Questions
Q: Does remortgaging affect my credit score? A full remortgage application creates a hard credit search, briefly affecting your score. Multiple hard searches in a short period have a cumulative effect. Using a broker who does a single soft search first, then one hard search, minimises impact.
Q: I'm in negative equity — can I remortgage? Rarely. Most lenders require LTV below 95%. If you're in negative equity (loan exceeds property value), you are typically limited to product transfers with your current lender (who already holds the mortgage and knows the risk).
Q: My remortgage requires a valuation — what if the survey is lower than expected? If the valuation comes in lower than expected, your LTV is worse than planned and you may not qualify for the rate you applied for. You may need to increase your deposit to maintain the LTV, or accept a higher-rate product.
Q: Should I extend my term when remortgaging to reduce monthly payments? Extending the term reduces monthly payments but significantly increases total interest paid. If cash flow is tight, a short-term extension may be necessary — but aim to reduce the term again at the next remortgage when your circumstances improve.
Related resources
A short set of closely related pages for the next step only.
Mortgage Overpayments 2026: How Much Can You Save and Is It Worth It?
The maths of overpayment, the 10% rule, and whether paying down your mortgage beats investing.
MortgagesTypes of UK Mortgages Explained 2026/27: Fixed, Tracker, Offset and More
A plain-English guide to every type of UK mortgage and how to choose the right one in 2026/27.
CalculatorMortgage Repayment Calculator
Calculate monthly mortgage payments and total interest over the loan term.