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What happens when your fixed rate ends?

What happens when your fixed rate ends, what it could do to your payment, and the timeline for securing your next deal.

3D empty glass house, for what happens when your fixed rate ends

Quick answer

When your fixed rate ends, your mortgage moves onto your lender’s standard variable rate, or a follow on rate set out in your offer, unless you arrange a new deal. That rate is usually well above today’s fixed deals, so your monthly payment can rise sharply.

You can usually secure a new rate up to six months before the end date. Once your fix has ended there is normally no early repayment charge, so you can switch at any time.

Typical lender variable rate 
Average 2 year fix 
Bank Rate 
Secure a dealUp to 6 months early
Charge to leave afterUsually none
Theo alerts12 to 1 month

Updated today

Typical lender variable rate
 
What you move to
Average 2 year fix
 
Across lenders
Average 5 year fix
 
Across lenders
Extra each month on the SVR
£200,000 over 25 years
Secure a new deal
6 months
Before it ends
Charge to leave after it ends
Usually none
Switch any time
Theo reminders
5
12, 9, 6, 3, 1 months
Product transfer takes
Days
Up to 2 weeks

Your timeline

  • 12 monthsCheck your end date and any early repayment charge.
  • 6 monthsMost lenders let you secure a new deal now.
  • 3 monthsProduct transfer offers usually open by now.
  • End dateYour new deal starts. No charge to leave.
Work out your payment
Theo app mortgage timeline showing a fixed rate deadline ahead, with deals ending within 12 and 6 months
Example screen from the Theo app, October 2026.

Your fixed rate deadline, tracked

Theo counts down to the day your fixed rate ends and reminds you 12, 9, 6, 3 and 1 month before, so you can secure your next deal while you are inside the window and pay no early repayment charge.

Theo’s read

Loading today’s read.

Every weekday Theo reads swap rates and lender pricing, so you can see whether fixed rates are rising or falling as your deal ends.

19 signalsUpdated through the dayPlain English

What if you do nothing?

Theo shows your payment on your lender’s variable rate.

What your payment could do when your fix ends

Enter your mortgage. The rate after your fix ends is filled in with today’s typical lender variable rate when Theo’s live figures load. Change it to your own lender’s rate if you know it.

Your lender’s variable rate
Your payment after your fix ends
Enter the rate
Enter the rate your lender would move you to.

Estimates for a repayment mortgage. Not an offer or advice.

What happens when your fixed rate ends

Your fixed rate ends on the date in your mortgage offer. From the next day your lender charges a different rate, usually its standard variable rate, unless you have arranged a new deal. Some mortgages move to a follow on rate instead, often a tracker set out in your offer. Your monthly payment changes from your next payment date.

Most lenders write to you before your deal ends with the rate you will move to and the deals they can offer you. Your mortgage does not end, and nothing happens to your home: only the rate changes.

What it could cost

Standard variable rates are usually well above the best fixed deals. On a £200,000 repayment mortgage over 25 years, moving from 4.50% to a variable rate of 7.00% would raise the payment from about £1,112 to about £1,414 a month, an extra £302, or over £3,600 a year. The calculator above uses today’s typical variable rate when Theo’s live figures load. See how much your mortgage could go up for more scenarios.

Your options

You can take a new deal with your current lender, known as a product transfer, move to a new lender, or stay on the variable rate. A product transfer is usually the quickest. Moving lender opens up the whole market but takes longer. Staying on the variable rate gives you flexibility, because there is normally no charge to leave, but it usually costs the most each month. See how remortgaging works.

The timeline

A typical timeline. Lenders vary.
WhenWhat many people do
12 months beforeCheck the end date, any early repayment charge and your loan to value
6 months beforeCompare deals and secure one. Most lenders allow this without a charge
3 months beforeProduct transfer offers are usually open by now
1 month beforeConfirm everything is in place for the start date
After it endsIf nothing is arranged, you are on the variable rate and can switch at any time

See how early you can remortgage for more on the six month window.

If rates are rising or falling

If fixed rates are rising, securing a deal early protects you, because your offer usually holds for around six months. If they are falling, you can often switch to a lower rate before your new deal starts. Theo’s reading of which way rates are moving updates every weekday.

Common questions

What happens when your fixed rate ends?
Unless you arrange a new deal, your mortgage moves onto your lender’s standard variable rate or a follow on rate set out in your offer. Your payment changes from your next payment date, and there is normally no charge to switch to a new deal after that.
Will my mortgage payment go up when my fixed rate ends?
Usually, if you move onto your lender’s variable rate, because it is normally well above today’s fixed deals. Whether a new fixed deal costs more or less than your current one depends on today’s rates and your loan to value.
Do I have to remortgage when my fixed rate ends?
No. You can stay on your lender’s variable rate, but it usually costs more each month. Many people take a new deal with their lender or move to a new lender instead.
Will my lender tell me my fixed rate is ending?
Most lenders write to you before your deal ends, with the rate you will move to and the deals they can offer. Theo also reminds you 12, 9, 6, 3 and 1 month before the end date.
Is there a charge to leave once my fixed rate has ended?
Normally no. Early repayment charges usually apply only during the deal. Once it has ended you can usually switch at any time, though some lenders charge a small exit fee.

Keep exploring

Written by Jason Foord, CeMAP-qualified mortgage adviser and Director of Verifi Mortgages Ltd (FCA No. 997175), and founder of Theo. Updated 16 October 2026. Live figures on this page update automatically.

Theo App Ltd is not authorised by the Financial Conduct Authority and does not give mortgage advice. This page is information only and is not a recommendation. Figures marked illustrative are examples, not offers. Speak to an FCA-authorised mortgage adviser about your own circumstances.

Your home may be repossessed if you do not keep up repayments on your mortgage.