CPF or SRS for Investment

I'm assuming you have already set aside emergency fund for rainy days, you have income or savings for your daily expenses, and you have adequate medical insurance coverage. With your HDB fully paid up, indeed you can look at investment.

There is a rule of thumb on allocation: (100-age)% in equities and age% in fixed income. As you are just over 55, so it is about 45% equities 55% fixed income allocation. Your 80% 20% allocation is taking higher risk for your age.

If you already have money in SRS, you want to use it for investment because that money sitting idle in SRS is earning pathetic interest rate.

You don't have to choose only CPF or SRS to invest. You can do both. Just beware that your CPF investment has to perform better than 2.5% interest rate to worth your effort.

CPF.

SRS for tax reduction. Not working anymore no need SRS.