@resjudicata Yes, that's what I said.
If your mortgage is 4% and your savings rate is 5%, then mathematically, you're better saving vs overpaying your mortgage.
If its the other way about, then you're mathematically better off paying the mortgage off sooner vs saving.
What actually is your mortgage rate and savings rate?
I personally don't expect savings % rates to stay ahead of inflation. We're in a unique case this year because inflation has come down further than expected, so I am sure when the banks set the interest rates at 5%, inflation was still around 6%.
I expect the banks to start dropping interest rates as new updates to inflationary figures and the Bank of England base rate starts to drop again.
So it might be that if you're fixed equally at 5% in the mortgage for the next 5 years, your savings account % will start to go down next year and the year after, if inflation and BoE base rate start to fall. The base rate is currently 5.25% and BoE predict it'll fall to 1.9% by 2026. If so, I'd imagine we'll see savings account % rates also fall to 1.5-2% again.