One off overpayment on a part repayment/part interest only mortgage

stewartm999

I am looking to make a one off overpayment on my mortgage which is part repayment and part interest only, both recently fixed on the same 5 year rate.
I can choose which part of the mortgage I want the overpayment to overpay on and was wondering which would save me more interest over that period.
Thanks

MorningcoffeeIV

Neither. They are both on the same rate.

stewartm999

So paying off part of the repayment (and therefore capital) bit of the mortgage won't make any difference to paying off the interest only part of the mortgage?

dimbo61

What are your plans to pay off the Interest only part of the mortgage ?
Your repayment part will take care of itself  over the 20/25/30 year term.
The IO part will mean you still owe that money when your approaching  retirement.
Many people are finding this out to their cost.
Simple overpay off the IO mortgage