Remortgage Before Your Fix Ends: East Sussex’s Six Month ERC Check
You can usually remortgage before your fixed term ends, but you will normally pay an early repayment charge (ERC), so the sums have to work. Typical ERCs run between 1% and 5% of your outstanding balance. The cleaner route is to start planning about six months before the fix ends, lock a new rate in advance and avoid sliding onto your lender’s standard variable rate (SVR).
TL;DR:
- Calculate break even by dividing all switching costs by annual payment savings, then compare the result with how long you expect to keep the mortgage.
- Which? says switching with more than six months remaining usually fails to pay unless circumstances are exceptional, because early charges can outweigh short term savings.
- A product transfer is quicker and may avoid a fresh affordability check; a new lender offers more choice but requires valuation and legal work.
- Contact your lender before arrears build; a term extension lowers monthly payments but raises total interest, while temporary interest only payments leave the balance unchanged.
Table of Contents
- How soon can you lock in a new mortgage deal?
- What are early repayment charges and why can they be so high?
- Is remortgaging early worth it? A simple cost–benefit method
- Product transfer or remortgaging to a new lender?
- What does a six-month remortgage plan look like?
- What if you are struggling with your mortgage payments?
- How should you prepare your application to avoid delays?
- An independent broker’s view on timing your remortgage
- Get a free remortgage check with Prosperhomeloans
- FAQ
- Sources
How soon can you lock in a new mortgage deal?
Lenders’ application windows vary, and the Mortgage Charter allows borrowers to lock in a new deal up to six months before their current fixed rate ends. Borrowers can lock in a new deal up to six months early, and rates must be finalised two weeks before the new term starts. That gap is where the money is saved: if your new deal begins the day your old one ends, you complete after the fixed term finishes and no ERC applies.
Lenders vary, and some offer shorter windows, so check your own lender’s policy early rather than assuming. Here is what the window means in practice:
- Three to six months out: most lenders will accept an application and reserve a rate for you.
- Rate lock: you secure today’s rate, then your new mortgage starts when the old fix expires.
- Two weeks before the new term: the rate must be finalised, so paperwork should be complete well ahead of this.
- Lender differences: your lender’s own offer window may be shorter, so ask for it in writing.
Pro Tip: Diarise your fixed-term end date and set a reminder well in advance, so you have time to gather paperwork before your lender’s application window opens.
What are early repayment charges and why can they be so high?
An ERC is a fee your lender charges if you repay some or all of your mortgage during the deal period. It is usually a percentage of what you still owe, and on a larger balance that can mean thousands of pounds. Lenders build the cost of funding your fixed rate into the deal, and the ERC is how they recover it if you leave early.
ERCs typically range from 1% to 5% of the outstanding mortgage balance. On a larger loan, even the lower end of that range is a meaningful sum to weigh against any saving.
Two points are worth understanding about how these charges are justified:
- Portfolio pricing: Financial Ombudsman decisions explain that lenders may set ERCs as a reasonable pre-estimate of costs across their lending, not the exact loss on your individual loan.
- Disclosure matters: where the charge was clearly disclosed, such decisions have found it enforceable, so you should not count on challenging one.
- Sliding scales: some ERCs change during the deal, so check your offer to see how timing affects the cost.
- Other charges: lenders can also charge redemption and administration fees for ending or changing a mortgage.
Your mortgage offer document sets out the exact scale and usually gives cash examples. Dig it out first. If you want a deeper look at how these charges work, our guide to early repayment charges covers what they cost you and why they matter.
Is remortgaging early worth it? A simple cost–benefit method
The decision comes down to one comparison: the one-off costs of leaving against the interest you expect to save. Which? warns that switching mid-term usually triggers ERCs that often outweigh short-term savings, and its guidance on remortgaging in 2026 says switching with more than six months left is usually not worth it unless circumstances are exceptional. Run the numbers rather than guessing:
- List every cost. Include the ERC, any exit or administration fee, valuation, solicitor or legal fees and the new lender’s arrangement fee.
- Add them up to get your total one-off cost of switching.
- Estimate the annual saving. Take the difference between your current monthly payment and the new one, then multiply by twelve.
- Divide total costs by the annual saving. The result is the number of years it takes to break even.
- Compare the break-even to your time horizon. If you plan to stay and the break-even is short, switching may pay. If not, waiting usually wins.
Here is an illustrative example, not market data. Say you owe £200,000, your ERC is 2% (£4,000), and other fees total £1,000, so your costs are £5,000. If the new rate cuts your payments by £250 a month, you save £3,000 a year, and you break even in just under two years. If the saving were only £100 a month (£1,200 a year), break-even stretches past four years, and waiting looks wiser.
Pro Tip: Ask your lender for the ERC as a precise pounds-and-pence figure for a specific redemption date, because the charge can change on the day a scale steps down.
Staying put has its own price tag if your deal runs out. Citizens Advice research found an average loyalty penalty of about £439 per year for customers left on their lender’s SVR after a two-year fix. That is why doing nothing at the end of a deal is rarely neutral.
Product transfer or remortgaging to a new lender?
You have two main routes when a deal ends, and they trade speed against choice. A product transfer moves you to a new rate with your current lender. Which? explains it is faster and simpler, but it limits you to that one lender’s rates, so comparing the wider market is still worthwhile.
- Product transfer, the upside: quick, often light on paperwork, and it can avoid a fresh affordability check.
- Product transfer, the limit: only one lender’s range, and it will not remove an ERC if you switch before your deal ends and the terms apply.
- New lender, the upside: the whole market is open to you, which is where the keenest rates often sit.
- New lender, the trade-off: a full application, valuation and legal work, with the fees that come with them.
A quick decision checklist helps. If speed matters most and your finances are unchanged, a product transfer may suit. If the best rate is the priority, or you want to borrow more, remortgaging to a new lender usually gives you more to work with. Your tolerance for paperwork is the tiebreaker. An independent adviser can price both routes side by side, which is the practical benefit of working with a whole of market broker.
What does a six-month remortgage plan look like?
A timetable turns a vague intention into a deal that starts the day your old one ends. Work backwards from your end date:
- Six months out: confirm your fixed-term end date and request a current mortgage statement with ERC cash examples.
- Five months out: review your finances and check your credit report for errors.
- Four months out: compare deals and speak to an adviser about your options.
- Three months out: choose a product and lock the rate.
- Two months out: instruct your solicitor and submit the full application.
- Final weeks: chase the valuation and legal work so completion lands on your end date.
Lenders typically ask for the same core documents, so gather them early:
- Recent payslips and your latest P60
- SA302 tax calculations if you are self-employed
- Three to six months of bank statements
- Proof of identity and address
From application to completion, allow several weeks, which is why starting six months ahead leaves a comfortable cushion. Pro Tip: Scan your documents into one folder now. Missing paperwork is the most common reason a completion date slips.
What if you are struggling with your mortgage payments?
Switching is not the only answer, and if money is tight you should not wait until you miss a payment. Your lender may be able to help directly. FCA guidance allows some changes, such as extending your term or moving to interest-only for a time, without an affordability check if you are up to date with payments. The Mortgage Charter also points to options such as temporary interest-only payments.
- Talk to your lender early: forbearance options are far easier to arrange before arrears build up.
- Term extension: lowers the monthly payment, though you pay more interest overall.
- Temporary interest-only: cuts payments for a limited period, but the balance does not fall meanwhile.
- Free advice: MoneyHelper and Citizens Advice offer free, impartial help.
Be careful about remortgaging simply to clear unsecured debts. MoneyHelper warns this carries real risks, and you should take debt advice before increasing secured borrowing. If you are on a debt management plan, our note on remortgaging with a DMP sets out the practical options. We also arrange debt consolidation mortgages where that is the right fit, after a proper conversation about the risks.
How should you prepare your application to avoid delays?
Most delays are avoidable. Lenders want the same evidence every time, and gaps slow everything down. Have these ready before you apply:
- Proof of identity and address
- Proof of income: payslips, P60 or SA302
- Recent bank statements
- Your current mortgage statement
- Evidence of buildings insurance
The usual culprits behind a late completion are missing paperwork, a slow solicitor and a delayed valuation. Choose a conveyancer who responds quickly and book the valuation as soon as your offer is in. An adviser can help submit a complete, correctly presented case and reduce avoidable back-and-forth. For contractors and CIS subcontractors, income evidence is where cases most often stall, so include your full tax paperwork from the start. Pro Tip: Ask your adviser for a document checklist tailored to how you are paid before you begin gathering anything.
An independent broker’s view on timing your remortgage
Most homeowners we speak to treat the end of a fix as a date to react to, when it is really a window to plan inside. The best results come from starting early, getting the real ERC figure in writing and running the cost–benefit sums before anyone mentions a rate. We check ERC cash examples, search the whole market and manage the timing with lenders and solicitors, so your new deal starts the day your old one ends.
We also see how different incomes change the picture. Self-employed borrowers, contractors and CIS subcontractors can often use their gross income to support a larger loan, and we handle those cases regularly. We are available locally across Hastings, Eastbourne, Hailsham, Bexhill-on-Sea and the wider East Sussex area, and by phone or online if you prefer.
— Paul
Get a free remortgage check with Prosperhomeloans
If your fixed term is ending, or you are weighing up an early switch, we can take the guesswork out of it. Our remortgaging service can help you assess your options; current prices are on our website, and from there we do the legwork:
- Pull your ERC figures and run the full cost comparison
- Search the whole of the market, not just one lender’s range
- Advise on product transfer versus a new lender
- Support contractor mortgages and CIS voucher mortgages for self-employed contractors with enhanced income
We are local to Hastings and East Sussex, and available to discuss your options. Book an appointment or send an online enquiry through our remortgaging page, and we will tell you plainly whether leaving early pays or waiting is smarter.
FAQ
Can I remortgage before my fixed term ends?
Yes, you usually can, but you will normally pay an early repayment charge if you leave before the deal finishes. The cleaner option is to lock a new rate up to six months early so it starts when your current fix ends, as the Mortgage Charter allows.
How early can I arrange a new mortgage deal?
Most lenders allow applications three to six months before your deal ends, and the Mortgage Charter supports locking up to six months ahead. Lenders differ, so check your own lender’s window early.
How much is an early repayment charge?
It is a percentage of your outstanding balance, with typical charges between 1% and 5%. Your mortgage offer shows the exact scale and often includes cash examples.
What happens if I do nothing when my fixed deal ends?
Most lenders move you onto their standard variable rate, which is usually higher than a new fixed deal. Citizens Advice research found an average loyalty penalty of about £439 per year for customers left on an SVR after a two-year fix.
Sources
- Citizensadvice
- Moneysupermarket
- Gov
- Decision Reference DRN-4732370
- Remortgaging: how to switch at the end of your mortgage deal - Which?
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