Read? Top Up CPF SA From CPF OA? Depending On Who You Ask! (10) With more young personal financial investment influencers coming on board the investment blogosphere. We are seeing this dilemma exhibited quite clearly in the cyber space! The wonder of compounding interests of additional 1.5% over the next 30 to 40 years in CPF SA to secure retirement well in advance vs the potent power of investment return in CPFIS across market cycles. This potent power of investment return in CPFIS can generate either gigantic return or destroy wealth. With CPFIS, CPF members may be better off doing Bar Bell investing approach across market cycles by earning compounding interests at 2.5% safely during peace times and when opportunity arises; they take higher risk and moves over to the other end of the Barbell for investing return. Of course; it all depends on your investing skills ...