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Calculate Sales tax US

Sales Tax States, to calculate sales tax of US States, city and zip code.

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Reverse GST calculator in Australia (AU) for 2023

Reverse Australia (AU) GST calculator


Formulas to calculate the reverse Austrlia GST

Here is how you can calculate the amount without GST from amount with GST:
Amount without GST = Amount with GST / (1+(GST rates/100))

To get the amount of GST paid here is the formula:
Amount of GST = Amount including GST - Amount without GST

AU GST rate

The current GST rate for Australia is 10%.

How to calculate taxes for residents of Australia (GST)

When a company with a turnover of $75000 or more sells a good or service to a customer, he invoice him the amount with GST (including tax) which includes the price without taxes + GST (goods and services tax). This calculator helps you get the price you paid before taxes.

GST free

Their is a list of various products and services that are exempt from GST

For products the GST free applies to: most basic foods, water sewerage and drainage, precious metal, some course materials, some medical and health care products, some telecommuniations supplies, some menstrual products

For services the GST exemption applies to: some education courses, some medical and health care services, some religious and charitable services.

For more specific information about GST-free products and services, please visit this page of the ato.gov website.

More information about GST in Australia

To get more information or to register to GST, the Australian Taxation office (ATO) is the reference.

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