Interactive

Income tax systems calculator

Tax Brackets
First Tax bracket. Use tab to move through inputs and type numbers to change them.
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Remove the first tax bracketx
Second Tax bracket. Use tab to move through inputs and type numbers to change them.
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Remove the second tax bracketx
Third Tax bracket. Use tab to move through inputs and type numbers to change them.
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Remove the third tax bracketx
Fourth Tax bracket. Use tab to move through inputs and type numbers to change them.
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Remove the fourth tax bracketx
Fifth Tax bracket. Use tab to move through inputs and type numbers to change them.
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Remove the fifth tax bracketx

Estimated total tax revenue collected:

 

(see other notations)
Note: The tax payable calculated in this interactive does not include the Medicare levy
Income tax & tax revenue for different personas
Name Income Tax Payable % Income
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Number Notations
WORD* form  
Word Form: = a "text" where "a" is the same number from the Engineering form and the text is from Modern "Short Scale" method used in Australia - from the "Standard Dictionary of Numbers"
the word multiplier*:
10^0 = 1One
10^3 = 1,000Thousand
10^6 = 1,000,000Million
10^9 = 1,000,000,000Billion
10^12 = 1,000,000,000,000Trillion
10^15 = 1,000,000,000,000,000Quadrillion
Estimated Total Tax Revenue Collected  
Rounded to the nearest billion.
SCIENTIFIC form  
Scientific Form: = a*10^n where {1 ≤ a < 10, n ∈ ℤ}. For example, a is ≥ 1 and < 10; n is an integer.
ENGINEERING form  
Engineering Form: = a*10^n where {1 ≤ a < 1000, n is a multiple of 3}. For example, a is ≥ 1 and < 1000; n is a multiple of 3.