I have a mortgage right now and I am motivated to pay it off as fast as possible. I have thought of a few key performance indicators that I store in a spreadsheet and check on each month. These performance stats demonstrate how every little bit helps, and remind me to save for extra payments.

enter image description here

  • Two simple ones are balance remaining and % ownership.
  • Another simple one is interest to principal ratio, cumulative from the beginning of the loan to the present. I hate seeing all that money go to interest, so extra payments help me beef up the principal side.
  • A more complicated KPI is days ahead of schedule. For example, right now I'm nearly 400 days ahead of the baseline (which is making minimum payments on a monthly basis).
  • Finally, the last one I use is total interest saved. By making double-up and the odd lump sum pre-payment, I contribute directly to principal. For example, by getting to $130,000 balance 400 days sooner than baseline (minimum monthly payments), I have already saved nearly $4000 in interest.

I am curious to know what other measures or KPIs I can use to track my progress.


1 Answer 1


On my spreadsheet I track the original payment schedule in columns next to my actual payment schedule so I can see at a glance how far ahead I am, as measured by outstanding balance. Like I can see that my latest payment about matches where I would have been in June of 2021.

In addition to the things you are tracking I track things like the difference between the I/P ratio of the original schedule and actual. I also track the interest saved on each additional payment.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.