New Zealand GST Calculator

Calculate GST with this simple New Zealand GST calculator. It can be used as well as reverse Goods and Services calculator. It is easy to calculate GST inclusive and exclusive prices.

What is GST rate in New Zealand?

Current GST rate in New Zealand is 15% for goods and services. Some goods and services are 0% taxable and some goods and services are GST exempt.

New Zealand Goods and Services tax history

In New Zealand the goods and services tax (GST) was introduced on October 1, 1986.

How to calculate New Zealand GST manually

  • To calculate New Zealand GST at 15% rate is very easy: just multiple your GST exclusive amount by 0.15.

$300 is GST exclusive value

$300 * 0.15 = $45 GST amount

  • To get GST inclusive amount multiply GST exclusive value by 1.15

$300 is GST exclusive value

$300 * 1.15 = $345 GST inclusive amount

  • To get GST part of GST inclusive amount you need divide GST inclusive amount by 115 and multiply by 15

$230 is GST inclusive value

($230 / 115) * 15 = $30 GST value

  • To get GST exclusive amount while knowing GST inclusive value you need to multiply GST inclusive price by 100 ant then divide result by 115

$230 is GST inclusive value


$23000/ 115 = $200

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