The decision to close CPFIS after 55 can be based on dollar and cents in order to make financial sense.
Every counter held in your CPFIS account incurs $8.56 custodian fee per year so there is cost or saving involved to compute.
How to decide to close or not after 55?
Your size of CPFIS really matters!
Any money refund from your CPFIS will earn 2.5% interest p.a. Does annual interest earned far exceeded the total custodian fees?
Yes or no?
You need to do your own Maths! Bo pian!...