If you fixed for five years in the autumn of 2021, your deal is running out about now. The remortgage 2026 UK homeowners are walking into is a different market from the one they walked out of, and the gap between handling it well and handling it badly is worth more than most people’s annual energy bill. The good news is that almost all of the value is in preparation, not in finding some secret product.
The short answer
Start six months before your current deal ends, not one month. Lock a rate early — most offers can be held for three to six months and you can usually swap to a better one if rates fall before completion. Then spend the waiting time on the two things that actually move your rate: your loan-to-value band, and having your paperwork ready.
Everything below is the detail behind those three sentences.
Why autumn 2026 catches a specific group of people
Two groups of homeowners are coming off deals right now. The first fixed for five years in late 2021, at rates that will never come back. The second fixed for two years in late 2024, after the worst of the spike, and is finding the drop less dramatic than they hoped.
The Bank of England base rate is 3.75%, which is a long way below the 2023 peak but nowhere near the 2021 floor. If you are in the first group, your monthly payment is going up whatever you do. The question is not whether you can avoid an increase — you cannot — but how much of it you can shave off, and whether you accidentally spend a few months on your lender’s standard variable rate while you work it out.
That last part is the real cost. The SVR is the rate you roll onto automatically when a fixed deal ends and you have arranged nothing else. It is not a penalty, but it is the most expensive rate your lender offers and it can move at any time. Three months on it while you “get round to sorting the mortgage” is money you will not get back.
Check these five things before you look at a single rate
1. The exact date your deal ends — and your early repayment charge date
These are not always the same date. Read your annual mortgage statement or your original offer document and find both. Some deals have an ERC that runs a month or two past the end of the fixed period, which quietly stops you completing early. Most lenders let you start the switch three to six months out without triggering anything.
Put the earlier of the two dates in a calendar with a six-month reminder in front of it. This is the single highest-value five minutes in this article.
2. Your current loan-to-value
Lenders price in bands — the boundaries sit at levels like 60%, 75%, 85% and 90%. Dropping under a boundary can move your rate more than shopping around does.
Take your outstanding balance, divide by what your home is realistically worth today, and see how close you are to the next band down. If you are a few thousand pounds away, a lump-sum overpayment before you apply can pay for itself many times over. Check your annual overpayment allowance first — most fixed deals allow 10% a year without charge.
3. What has changed about your income
Lenders will treat your income differently if you have gone self-employed, taken a pay cut, gone part-time, or added childcare costs. None of these are dealbreakers, but they change which lenders will say yes — and they are why people who assumed a remortgage would be a formality find it is not.
4. Your credit file
Pull it before a lender does. A forgotten default, an old address still showing, or a credit card you closed but which still shows a balance can all cost you a rate band. Fixing these takes weeks, which is exactly why you start six months out.
5. Any work you have had done
Extensions, loft conversions, a new boiler, replacement windows, a knocked-through wall. If a valuer flags unauthorised work, or the lender’s solicitor asks for building regulations sign-off, FENSA or Gas Safe certificates and you cannot produce them, the application stalls. This is the most avoidable delay in the whole process and it is entirely a filing problem.
Product transfer or full remortgage?
A product transfer means staying with your existing lender and moving to one of their new deals. It is fast, usually involves no valuation and no legal work, and typically no fresh affordability assessment. A full remortgage means moving to a new lender, which involves an application, a valuation and conveyancing — but opens up the whole market.
Here is the opinion, and it is not the popular one: for most homeowners in autumn 2026, the product transfer is the sensible default and the full remortgage is the thing you do only if the numbers clearly justify it. The industry talks about switching as though loyalty is always punished. In practice, once you price in the fees, the legal work, the valuation risk on a house that has had unpermitted work done, and the six weeks of your life, a decent product transfer beats a marginally cheaper headline rate more often than brokers’ marketing suggests. The exception is real and important: if your LTV has dropped a band, or your existing lender’s range is genuinely uncompetitive, moving can be worth a substantial sum. Do the maths, do not do the ideology.
The way to do that maths is total cost over the deal period, not the rate. Rate, plus arrangement fee, minus any cashback, minus free legals and free valuation, across the full term of the product. A lower rate with a large fee usually wins on big balances and loses on small ones.
What the FCA rule changes may mean for you
The FCA has been running a review of mortgage rules with the stated aim of making it easier to switch to a cheaper deal, to reduce your term without a full affordability assessment, and to let lenders discuss options with you without every conversation counting as formal advice. The consultation closed in summer 2026.
If those changes land as proposed, remortgaging to a cheaper product with a new lender becomes less of an obstacle course than it has been. Check the current position before you assume it applies to you — this is moving, and what is proposed is not the same as what is in force.
What to do in the next 30 minutes
Find your mortgage offer or latest annual statement and write down: deal end date, ERC end date, outstanding balance, current rate.
Divide the balance by your best estimate of the property’s value to get your LTV, and note how far you are from the next band down.
Log into your lender’s app and look at what they are offering existing customers on a product transfer. This is your baseline number.
Check your annual overpayment allowance and whether a lump sum would cross an LTV boundary.
Set a calendar reminder for six months before the ERC end date.
Put the mortgage statement, buildings insurance schedule, EPC, and any building regs or FENSA certificates in one place.
That last one is what most people fumble. Home+ gives you a free place to keep the mortgage statement, the insurance schedule, the EPC and the certificates for every job done on the house, so that when a lender’s solicitor asks for the window certificate from 2019 you are not searching three email accounts. Keep mortgage paperwork in Home+ and set the ERC reminder against the property while you are there.
FAQ
How early can I start remortgaging? Most lenders let you apply three to six months before your current deal ends, and hold the offer until your deal expires. Starting early costs you nothing and protects you against rates rising in the meantime.
Will I lose the deal if rates fall after I lock it in? Usually not. Many lenders let you switch to a better product from their range before completion. Ask the question explicitly when you apply, because the policy varies and it is not always volunteered.
Do I need a solicitor to remortgage? For a full remortgage to a new lender, yes — there is legal work, though many products include free legals. For a product transfer with your existing lender, normally no.
What happens if I do nothing? You roll onto your lender’s standard variable rate. Nothing breaks, but it is typically the most expensive rate available and it can change without notice. You can switch away at any time from SVR without an early repayment charge.
Does my EPC affect my mortgage? It can. Several lenders offer green mortgage products or cashback for properties in the higher EPC bands. It is worth checking your current certificate before you apply rather than after.
Should I fix for two years or five? That depends on your view of rates and on how much certainty you want, and it is a decision to take with a qualified adviser rather than from an article. What we would say is that the answer changes if you might move, overpay heavily, or need to port the mortgage — flag those plans to your broker up front.
