The Australian Taxation Office (ATO) provides a variety of rate tables, tax calculators, and other tools on many topics, including the following:

• Capital gains tax
• Fringe benefits tax
• Fuel tax credits
• Goods and services tax 
• Income tax
• PAYG withholding
• Superannuation

MORE: To access these tools, navigate to the Calculators & Tools section of the ATO web site.