Glad that you try to clarify my queries with CPF.
Likely part of the answers may still be opaque especially on the period of AMP from top-ups after CPF Life is chosen. They will say you need to apply for APM and they will tell you the amount at the time when you want to start payout.
Under min sum scheme, we would be able to estimate the monthly payout ourselves when we commence draw down as the RA amount is spread over a finite period of about 20 years or remaining period of 20 years from payout eligibility age..
Here is the reply from CPF
Under the current policy and assuming the member were to join CPF LIFE Standard Plan, all his RA savings will be used to commit towards the LIFE plan.
Different from the LIFE Standard plan, assuming the member to join CPF LIFE Basic Plan, about 10% of his RA savings will be used to commit towards the LIFE plan. The actual percentage will depend on his age and gender. We will inform him on the amount deducted when the policy is issued. The rest of his RA savings will remain in your RA.
The annuity premiums for the LIFE plan will depend on the RA savings the member set aside by age 65.
For any new monies, contributions, top-ups in the RA after 65, the AMP will be paid to him during the Annual Payout Review until the RA savings are exhausted. He can request to opt out from receiving the AMP by submitting an e-Concierge request or letter. If he decides to start the AMP, he can submit a request via these two methods as well.
Savings in CPF LIFE, like savings in the RA, are invested in a portfolio of risk-free special Singapore Government Bonds that pay fixed coupon rates over a long period of time. In this way, CPF LIFE members can rely on a steady stream of income for life.