One question, after setting aside for the Full Retirement Sum in my RA account.
Can I withdrew any amount leftover in my SA account thereafter?
Yes, partially or fully. You’re under no obligation to do that, but you can.
Example: when stocks goes up 60% S: 40% CPF
I will want to sell off stock and pump it into SA account. For 50:50
No, you cannot do that. Once you withdraw Special Account dollars, they’re out. You have these options instead:
1. You can deposit funds into your Retirement Account, up to the Enhanced Retirement Sum. Those funds plus interest will stream out as CPF LIFE monthly payouts (when you start payouts, which can be as late as age 70).
2. You can deposit funds into your own MediSave Account, but your deposit must fit within two limits: the Basic Healthcare Sum and the CPF Annual Limit. This top up qualifies for tax relief.
3. You can deposit funds into “all three” of your accounts (OA/SA/MA), but your deposit must fit within the CPF Annual Limit.
4. You can deposit funds into anybody else’s CPF account(s), such as a spouse’s or partner’s, according to his/her applicable rules and limits.
When 40% stocks: 60% CPF, can I withdraw anytime the money in SA account to pump up my stock to 50%?
Yes, but this is one occasion when portfolio rebalancing is not necessarily the highest priority. Your Special Account dollars are earning 4% interest, and that’s quite attractive.
Portfolio rebalancing is nice to do, but it’s fundamentally motivated by a desire to respect your personal risk limits. However, CPF dollars are extremely safe — safer even than Singapore Government Securities (such as Singapore Savings Bonds) because of the unique asset protection characteristics that CPF offers. And SA is weirdly relatively high yielding (4% interest). So you really don’t have to worry about having “too much” in your SA, at least not under ordinary circumstances. So if your stock allocation dips below a certain percentage, I wouldn’t be rushing to use SA dollars to fix that. Other assets (such as SSBs) would come first since they’re lower yielding. If that’s still not enough, don’t worry about it. It’s not any sort of emergency if your stocks represent 45% of your net worth, for example.
By the way, once you hit your drawdown/retirement age — traditionally age 65 — then the recommended “rule of thumb” allocation is 30% stocks/stock-likes and 70% bonds/bond-likes. High net worth individuals might be more aggressive than that. So that’s another reason why, as you age, having less than 50% allocated to stocks isn’t likely to be a problem.