I don't know much about Singapore, but it tops the Heritage Foundation Index of Economic Freedom, which implies it has a fairly low tax burden.
[edit]
The top individual income tax rate is 22 percent, and the top corporate tax rate is 17 percent. The overall tax burden equals 14.1 percent of total domestic income[1].
Those sorts of comparisons are always a three way tug of war between the letter of the law (what you can do on paper), enforcement (what you can do in reality) and taxes (the cut the .gov takes).
Depending on how much you value each one depends on the answer you get.
