thanks for the detailed analysis.S27 is the symbol for SPY when traded on the SGX. It is actually one in the same, just a cross listing. So when you buy S27 you are actually buying SPY.
If you buy S27 in your SRS, estate tax won’t apply because your SRS operator manages the investments through a foreign intermediary, in the case of UOB this is UOB Nominees.
The 30% withholding tax on dividends does apply. Currently the dividend rate is 1.24% per annum x 30%, so about 1/3 of a percent is lost each year. But, given the low expense ratio of less than 1/10 of one percent, you are still under 1/2 of one percent in total which is hands down better than any other SRS eligible investment in US equities.
Note as well that it is possible to eventually withdraw the shares by in-kind transfer to CDP and then cross-border transfer to IBKR and sell as SPY shares in the US, so you won’t have to deal with the poor spreads, high commissions or lousy exchange rates except at the start.
I have made four purchases of S27 in my SRS so far and roughly it’s been about 1/3, 1/3, 1/3 for spread, currency & commissions/fees, or about 1% upfront cost. Well worth it in my opinion, given it’s a long-term investment, especially if I can liquidate more efficiently in the end.
indeed it’s the most cost efficient option for S&P 500 among the other available options

