Less than 1% of private home transactions in Singapore use 99-to-1 arrangement: Finance Ministry

If the parent and child were to come in as 99-1 at the point of sale, there is absolutely nothing wrong because the maximum stamp duty would have been paid for at the start. But in this case when the parent only comes in after the option has been exercised, or sales and purchase agreement has been executed, and then the 1% being sold and only the ABSD being paid on the 1%, then clearly the intention is to evade tax.