This, according to a poll by Reuters.
The government has repeated in recent weeks the need to raise revenue to cope with an aging population, and has also indicated it might levy a tax on online purchases.
The GST rate has remained at 7 percent since 2007, and economists say it’s likely to be raised to 9 percent.
Singapore introduced GST in 1994, with a 3 percent rate.
This was raised to 4 percent in 2003 and 5 percent in 2004, then to 7 percent in 2007.
Some economists say that it’s likely GST will be raised from this year due to economic growth of an estimated 3.5 percent in 2017.
A 2 percentage point rise in GST could boost Singapore’s headline inflation rate by 1.0-1.5 percentage points and consequently, core inflation.
The GST hike by 2 percentage points would add around 0.6 percent of GDP to net government revenues annually.