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MortgageMetrics

Remortgage savings calculator

Compare your current rate with a new deal, including arrangement fees and any early repayment charge, to see whether switching pays and how quickly.

Free, no sign-up Last reviewed 3 October 2026

Your details

From your latest statement or redemption figure.

Your current mortgage

Typical lender standard variable rate is around 7%.

0 if your deal has ended

The new deal

Bank of England base rate: 3.75%

Deal length

Often free on remortgage deals

How the saving is worked out

We compare two paths over the length of your new deal. In the first, you stay on your current rate. In the second, you switch, paying any early repayment charge, exit fee and arrangement fee. Both are repayment mortgages ending on the same date.

The net saving is the interest you'd avoid by switching, minus every switching cost. If the arrangement fee is added to the loan, it's counted as a cost too, because you still repay it. The break-even point is the month when the interest saved first covers those costs.

Before you switch

  • Check your mortgage offer for the exact early repayment charge. It often steps down each year of the deal.
  • Your loan-to-value affects the rates you'll be offered. If your home has risen in value, you may qualify for a lower band.
  • Ask your current lender for a product transfer rate as well as comparing other lenders.
  • Rates after the new deal ends aren't included. You'll likely remortgage again then.

Get advice from an FCA-authorised mortgage broker

A whole-of-market broker can check what lenders would actually offer you and help with the application. We don't recommend specific lenders or products.

Find a broker

Frequently asked questions

When should I remortgage?

Most people remortgage when their fixed or tracker deal ends, to avoid moving onto the lender's standard variable rate. You can usually secure a new deal up to six months before your current one ends.

Is it worth paying an early repayment charge to switch?

Sometimes. If rates have fallen a long way, the interest saved over the new deal can outweigh the charge. This calculator shows the break-even point. Compare it with the time left on your current deal.

Should I add the arrangement fee to my mortgage?

Adding the fee means you don't pay it upfront, but you pay interest on it for the rest of the term. On a small loan, a no-fee deal with a slightly higher rate can work out cheaper.

What is a product transfer?

A product transfer is a new deal with your existing lender. It usually needs less paperwork, no new valuation and no legal work, though the best rates may be with a different lender.

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