Wikipedia now shows the new income tax rates for 2008-09. The table shown in the article is the usual table used to show the neat simplicity of progressive income tax. For higher income bands you pay higher rates of tax.
The article also mentions the Low Income Tax Offset (LITO). LITO is a rather simple overlay calculation which can actually be expressed by simply modifying the tax table. However instead of modifying the tax table they retain the overlay calculation called LITO for reasons only really fully known to our political masters.
Over the fold I have a table showing the tax scales before and after applying the LITO. I made this table just for fun. Working out how tax rules effect tax outcomes is fun. Of course overlaying Family Tax Benefits Part A and Family Tax Benefits Part B depends on multiple variables besides personal income so I can’t show that in such a simple table. I don’t think I could handle that much fun right at the moment. And once we start to include the effects caused by the other “benefits” of the tax/welfare system the simplicity tends to dissipate somewhat (even as the level of fun continues to increase).
Amusingly those that earn between $34000 and $48750 per annum pay a higher marginal rate of income tax once the effects of LITO are included than those earning $75000 per annum. So much for progressive simplicity. However it is fun.