In most cases you can start the remortgage process up to six months before your current fixed deal ends, and many lenders will hold a rate for that period. Lender booking windows vary, so the exact timing depends on your lender and circumstances. You are not committed to a new deal until your current deal term ends. Timing matters because doing nothing usually means rolling onto a standard variable rate.
Table of Contents
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How soon before my fixed rate ends can I start remortgaging?
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Should I take a product transfer or remortgage to a new lender?
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Can I remortgage sooner than six months after buying a property?
How soon before my fixed rate ends can I start remortgaging?
Most borrowers can begin three to six months ahead of their fixed rate ending, and many lenders accept applications up to six months in advance and hold the rate for that period, according to MoneySavingExpert. Some lenders will let you lock in a new deal up to six months before the payments start, Experian notes.
Mortgage offers typically stay valid for three to six months, which is why the six-month window exists. Uswitch confirms you can secure a remortgage up to six months before your current deal ends, and you are not bound to the new deal until your current deal term ends.
Four months is usually enough for straightforward cases, according to Enness Global. It normally takes two to six weeks to get a mortgage application approved, Experian adds. Starting early gives you room to gather documents and deal with any delays.
What happens if I do nothing when my fixed rate ends?
You will automatically move onto your lender’s standard variable rate, also called the reversion rate, with no new deal arranged automatically. Enness Global explains that when a fixed-rate mortgage term expires, the lender does not automatically arrange a new deal.
The cost difference can be significant. According to Moneyfacts data from August 2026 cited by Enness Global, the average SVR across UK lenders stood at 7.13%, while the average five-year fixed rate sat around 5.35%.
On a £750,000 mortgage, the difference between an SVR at 7.13% and a five-year fixed at 5.35% is roughly £1,110 a month, or about £13,320 a year. Uswitch notes the average SVR sits more than 1.5% above the average fixed rate at 75% loan-to-value.
What is an early repayment charge and when does it apply?
An early repayment charge is a fee calculated as a percentage of your outstanding mortgage balance, usually payable if you leave your current mortgage during the fixed term. Experian confirms that leaving your current mortgage during the fixed term will usually trigger an early repayment fee.
The percentage often reduces the closer you are to the end of the deal. Enness Global gives a worked example: on a £1,500,000 mortgage balance with a 1% early repayment charge rate, the potential ERC payable is £15,000. If switching saves you £1,500 per month, that £15,000 charge is recovered in ten months.
Completing a remortgage after the deal ends avoids the ERC, which is the point of timing it carefully. Your broker can check your ERC schedule and confirm the earliest date you can leave without penalty.
Should I take a product transfer or remortgage to a new lender?
It depends on your priorities. A product transfer moves you to a new fixed or tracker rate with your existing lender without a full remortgage application, according to Enness Global. This route is quicker and simpler because the lender already holds your details.
A full remortgage involves affordability checks and can access whole-of-market options. Mortgage Advice Bureau notes it typically takes between four to eight weeks to remortgage. The trade-off is honest: product transfers are faster, but a full remortgage may find a better fit.
I compare both routes as part of my remortgage advice service. With 30 years of financial services experience, I work with homeowners in Gloucester and across the UK, using a whole-of-market lender search and plain-English guidance to help you decide.
What if rates fall after I lock in a new deal?
Securing a rate in advance protects you if rates rise, and many lenders let you switch to a better rate before completion if one becomes available. MoneySavingExpert advises checking this when you apply.
Ask the lender or broker to confirm the switch-down policy before applying. Uswitch confirms you are not bound to the new deal until your current deal term ends, which gives you flexibility.
There are no guarantees that a better rate will appear, and mortgage options and criteria depend on individual circumstances. A broker can monitor rates and tell you if switching makes sense before completion.
How long does remortgaging take and what does it cost?
Remortgaging typically takes four to eight weeks end to end, with application approval in two to six weeks. Mortgage Advice Bureau gives the four-to-eight-week timeline, while Experian confirms the two-to-six-week approval window.
Costs to plan for include arrangement, valuation and legal fees. Some lenders waive or package these fees as an incentive, but it is worth checking the total cost before committing. Enness Global notes that very small balances, around £50,000 or less, are unlikely to be remortgaged to a new lender.
Can I remortgage sooner than six months after buying a property?
Usually not. Most lenders apply a six-month ownership rule, with some extending their own restriction to twelve months, according to Enness Global. Mortgage Advice Bureau confirms most lenders will allow you to remortgage six months after you have purchased the property.
A small number of lenders apply the rule strictly and will refuse within six months of purchase. If you are still inside a fixed deal, an early repayment charge may also apply. Your broker can check which lenders will consider your situation.
How can a mortgage broker help with an early remortgage?
A broker checks your current deal end date and ERC schedule, compares product transfer against whole-of-market options, and diarises the six-month window so you do not miss it. MoneySavingExpert recommends getting ready early, and Uswitch confirms the best time to look is at least six months before your deal ends.
A broker also manages the paperwork and lender timelines so completion lands after the fixed term ends, avoiding an ERC. Mortgage Advice Bureau notes the process takes four to eight weeks, so starting early leaves room for delays.
If you would like a remortgage review, contact me, Andrew Westwood, for a plain-English conversation about your options. I work with homeowners in Gloucester and across the UK, and I will help you understand what happens next without confusing terminology.
Key Takeaways
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Most homeowners can start remortgaging up to six months before their fixed rate ends, and many lenders will hold the rate for that period.
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You are not committed to a new deal until your current deal term ends.
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Doing nothing usually means rolling onto the lender’s standard variable rate, which averaged around 7.13% in August 2026 against around 5.35% for an average five-year fix.
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An early repayment charge is typically a percentage of the outstanding balance and often reduces nearer the end of the fixed term.
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A product transfer stays with your existing lender without a full application; a full remortgage can access other lenders but takes longer.
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Most lenders require six months of ownership before remortgaging, and some extend that to twelve.
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Remortgaging usually takes four to eight weeks, so starting early leaves room for delays.