according to Son, there was a CPF Letter in 2023 informing Mom of the $435 monthly payout to last around 7 years, and payout would begin Feb 2024
and the same info was reflected in Mom's CPF Dashboard which he screenshot before making 10k top up.
correction: the RA at 31 Mar was $22.1k
based on initial Excel workings, $22.1k & $435 monthly would have lasted 60 months (starting Feb24, without top up), depleting on 61st month ( double checking my Excel, will post for comments )
Since the RA balance is now $22.1 as at Mar 2024, the payout of $435 would last about 5 years but cannot be 7 years despite what the CPF Letter mentioned. Did the CPF letter mention the RA balance and the date before payout starts in Feb 2024? Even if you factored the interest from date of RA balance to Jan 2024, the payout wouldn't last more than 5 years.
It appears the old lady never drawn down her RA as it was not compulsory for those born before 1948.
But from Jun 2023 draw down becomes compulsory starting from their coming birthday. So the old lady coming birthday must be Feb 2024. And as I mentioned earlier payout is calculated to last RA about 5 years and another 5 years from any subsequent topping up.
Just to share. My father exhausted his payout of $297 for several years before I did a top-up of $6k in 2007. There was no payout despite the top-up and his RA grew to $7,658 with interest. Then, I realised the benefit even without tax relief and topped up his RA with $30k in cash in 2013 and asked for re-commencement of payout.
CPF started payout at $297 based on his last payout that were years ago. I wrote in to ask for higher payout and his payout was immediately adjusted to $660 to exhausted the RA in about 5 years.
In the years following I kept topping up his RA amounting to about $160k in cash with no tax reliefs and each time I asked for the highest payout possible and the adjusted payout would last about 5 years from the last topping up month. His last payout before passing off was $2,204. That time, the RA balance would be refunded to the Giver, without interest, upon death of the Recipient and nomination has no effect. He passed off in 2018 and the accrued interest from Jan 2018 went to his nominee.