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How to remortgage: re-pricing the biggest loan you will ever have
Remortgaging in plain terms — when it pays, when it does not, the fee arithmetic, and the process
Your mortgage's price is not permanent. Remortgaging — replacing your current deal, usually at the end of a fixed term — is the periodic re-pricing of the largest loan most people hold, and the gap between doing it well and drifting can be five figures over the loan's life.
Why rates move against the passive borrower
When a fixed term ends and you do nothing, the loan rolls onto the lender's standard variable rate — almost always meaningfully higher than both your expired deal and the market's current offers, because it prices loyalty as captivity. Lenders count on inertia; the entire remortgage market exists to defeat it. The trigger points: your fixed term ending (start six months early — most lenders let you lock a new deal in advance), your loan-to-value dropping into a cheaper band after years of repayments (the cliffs in the LTV explainer), or market rates falling below your current rate.
When it does not pay
Three honest counters. Exit charges: leaving mid-term triggers early-repayment fees that can erase a year of savings — do the arithmetic before the sentiment. Reset clocks: remortgaging into a new long term re-extends the amortisation — lower payment, more total interest; the amortisation explainer shows why the shortest term you can afford is usually the cheapest loan. Equity-releasing remortgages — borrowing more to fund something else — are a new debt decision wearing a familiar coat, and deserve the scrutiny of the good-versus-bad-debt guide, not a broker's enthusiasm.
The process, step by step
Six to twelve months out: check your remaining term, current rate and today's LTV. Three to six months out: gather offers — including your existing lender's retention deal, which is real and often unadvertised — and compare totals not rates, fees included, per the fees explainer. Lock the best deal (typically reservable months ahead, and good locks are honoured if rates rise but not if they fall — asymmetric in your favour). Then the legal work: same-lender product transfers are often fee-light and paperwork-only; switching lenders means full conveyancing again. And on completion, diary the next review — remortgaging is not an event but a cycle, every fixed term, for as long as the loan lives.
The honest summary: a mortgage left alone gets more expensive by design; one reviewed every term gets repriced by competition. Know your end date, know your LTV band, compare total costs six months out, use the exit-fee arithmetic honestly — and the biggest number on your balance sheet stays a managed liability instead of a slow leak.
Sources and further reading
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