In this case at age 65. You can use this $88k to Top up your MA to max because at age 65 the MA will not increase yearly and the interest of 4% will go to your OA and you can withdraw as cash.Cpf life lah… eg. 176k FRS at 55 after ten years RA will have about 260523 ( 10 years 4% interest ) . Then I opt BRS at 65, 88k i can withdraw while the balance 172523 go to cpf life and u start to get ur monthly payout.