Needing money for a mortgage payment

Joe_Bloggs

It would make more sense to remortgage first in my view. If you got an offset mortgage then you could transfer your existing and increasing savings to offset accounts.
The benefit is that you are only charged interest on the difference between The amount left on the mortgage and your savings. If you can save at the rate you say, then pretty soon you will not be paying interest on your mortgage. Your payments will be just capital. You won't get any interest on saved money and you don't pay tax on interest that you did not get.

You could always add stoozed money to your offset savings accounts later.
I have done this in the past. A new mortgage lender may be suspicious of this credit card activity. I was asked to stop stoozing by my new lender. Hence it might be better to go for a five year deal rather than go through the whole process every two years and start stoozing after a remortgage. The YBS do very competitive offsets.
J_B. (Remember it's your money! Or is it theirs ? I'm sure I knew once.)