Okay I did my detailed calculations using apps, correct me if I am wrong:
I am assuming monthly payout of 1220 sgd according to cpf life website, yearly payment is 14640.
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This is the capital after 10 years of compounding at 4 % + 600 contribution from the additional 1 %
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After 10 years compounding, assume yearly repayment of 149xx sgd, after 17 years, total annuity will be depleted(assuming an interest rate of 4 %).
So the break even period should be between 17 to 18 years.
Assumption: interest rate during payout period stays constant at 4 % and no additional 600 per year during payout period.
That means as long as you lived past 82 years plus, the rest of the annuity will be pure profit.
you have done two things:
1. 161000 in cpf ra will become 247k if you keep in your account from 55 to 65
2. if you start to draw a monthly sum 1220 from 65, it will take you 17 years to draw 247k till it is dry.
What we want is
case 1
you draw 1200 every month
case 2
you draw nothing for the first 12 months, then you start to draw 1272 every month
in the short run, obviously case 1 is better. in the long run case 2 is better. when does case 2 become better than case 1.
answer 21 years later.