Why Remortgaging Matters
When your fixed-rate or tracker deal ends, your mortgage automatically moves onto your lender's Standard Variable Rate (SVR). SVRs are typically 2–3% higher than the best available fixed rates. On a £200,000 mortgage with a 25-year term, the difference between a 4.5% deal and a 7.5% SVR is approximately £350 per month — £4,200 per year in extra interest payments. Most homeowners who stay on an SVR are simply paying thousands of pounds more than they need to. Remortgaging when your deal ends is one of the most reliably effective financial moves you can make.
"When your fixed-rate or tracker deal ends, your mortgage automatically moves onto your lender's Standard Variable Rate (SVR)"
When to Start Looking
Start actively comparing remortgage deals 4–6 months before your current deal ends. Most mortgage offers are valid for 3–6 months, meaning you can lock in a rate now for a completion that happens when your current deal ends — protecting you against rate rises in the interim. If rates fall before completion, many lenders allow you to switch to a better rate within the offer period. Set a calendar reminder 5 months before your deal end date. Check your mortgage statement or the original offer documentation for the exact end date — it is the date your deal reverts to SVR, not your monthly payment date.
Product Transfer vs Full Remortgage
A product transfer means switching to a new deal with your existing lender without changing the mortgage itself. It is faster (sometimes same day), typically has no legal fees, and requires no new affordability assessment. A full remortgage means switching to a new lender entirely — it requires a new application, a new valuation, and legal work (though lenders often offer free legals). Product transfers are convenient but your existing lender is frequently not competitive. The right approach is to get a full broker comparison first, then check your existing lender's retention deals. If the difference is small, the product transfer may win on simplicity; if the difference is significant, a full remortgage is worth the additional process.
How to Compare Deals Properly
The headline interest rate is not the right comparison metric. A 4.0% rate with a £1,999 arrangement fee may cost more overall than a 4.2% rate with no fee, depending on your loan size and deal length. Always calculate total cost over the deal period: monthly payment multiplied by the number of months, plus the arrangement fee. For a £200,000 mortgage over a 5-year fix, a 0.2% rate difference is approximately £2,000 — less than a £1,999 fee. The formula is: (monthly payment × deal months) + arrangement fee. A good mortgage broker will present this comparison automatically. Also check: overpayment allowance (most deals allow 10% per year), portability (can you take it to a new property?), and ERC structure.
"The headline interest rate is not the right comparison metric"
Loan-to-Value and Why It Changes Your Rate
Mortgage rates are tiered by loan-to-value (LTV) — the ratio of your mortgage balance to your property's current value. Lower LTV means less risk for the lender, which means lower rates. Common LTV bands are 95%, 90%, 85%, 80%, 75%, 70%, and 60% — the rates improve significantly at each step down. When you remortgage, get your property valued (your broker will arrange this). If property prices have risen or you have been overpaying, you may now be in a lower LTV band than when you first bought. Moving from 90% to 85% LTV could save 0.3–0.5% on your rate — meaningful money over a 5-year term. Always check your current LTV before comparing deals.
Remortgaging to Release Equity
If your property has increased in value, you have built up equity — the difference between the property value and your outstanding mortgage. Remortgaging to a higher loan amount releases some of this equity as cash. Common reasons: home improvements (adding value back to the property), clearing expensive debt at a lower mortgage rate, funding a large expense. The cost is that you are borrowing more against your home, increasing your outstanding balance and total interest. Run the numbers carefully: releasing £20,000 at 4.5% over 20 years costs around £9,400 in interest — potentially far less than a personal loan, but only worthwhile if the purpose justifies the cost. Your new LTV will increase, potentially pushing you into a less favourable rate band.
The Remortgage Process Step by Step
Step 1: 5 months before deal end, contact a whole-of-market broker for a rate comparison. Step 2: Gather documents — latest mortgage statement, proof of income (payslips or accounts if self-employed), bank statements, and ID. Step 3: Apply for your chosen deal. The lender will credit-check you and conduct a valuation. Step 4: Receive your mortgage offer — review it carefully, check the rate and term match what you agreed. Step 5: Instruct a conveyancer if switching lender (the lender often provides one free). Step 6: Legal work completes — the new lender pays off the old one. Completion happens, ideally on your deal end date. The whole process typically takes 4–8 weeks from application to completion.
"Step 1: 5 months before deal end, contact a whole-of-market broker for a rate comparison"
Early repayment charges (ERCs) on fixed-rate mortgages are typically 1–5% of the outstanding balance. On a £300,000 mortgage, a 3% ERC is £9,000 — a significant cost that must be weighed carefully against any savings from switching early. Only break a fixed deal early if you have run the numbers and the new rate saves you more than the ERC over the remaining fixed period. Be particularly careful about arrangement fees being added to the mortgage balance — a £999 fee on a 25-year mortgage at 5% costs around £1,750 in total interest.
Finance Motion — General guidance only.
Not regulated financial advice.