We are in the very fortunate position of being able to pay off our mortgage 15 years early. However, linked to mortgage we also have a mortgage bank account which gives us access to cash at the same rate of interest as our mortgage. We have a lifetime tracker which tracks .5% below the base rate so for the last few years this has been great but we are aware that this could change soon!!
If we pay off 90% of the mortgage we won't have access to this account. Would it be best to pay off a chunk, then pay a nominal amount just to keep access to this account, or to pay it all off? We will have access to other savings/investments as well as our regular income.