Here is a calculator if you need to calculate GST only. Alberta is the only province in Canada with a no-retail-sales-tax policy, so in Alberta there are no other sales taxes except Goods and Services Tax (GST). This applies to all territories (Northwest Territories, Nunavut, Yukon) too.

Current (2024) **GST rate** in Canada is 5%.

**Any input field** of this calculator can be used:

- Enter price without GST – GST value and price including GST will be calculated.
**OR** - Enter GST value and get GST inclusive and GST exclusive prices.
**OR** - Enter GST inclusive price and calculate reverse GST value and GST exclusive price.

## How to calculate GST manualy

GST calculation is quite simple. Here are two scenarios:

- You have price without GST and you need to calculate final price including GST:
*base_amount*is a price before GST is applied*GST*=*base_amount** 0.05;*final_price*=*base_amount** 1.05;

Example:*base_amount*= $100,*GST*= $100 * 0.05 = $5 and*final_price*=$100 * 1.05 = $105 - Given price is GST inclusive and reverse GST calculation must be performed:
*final_price*is GST inclusive price

Calculation of GST part in this case is more complicated*gst*=*final_price** 5 / 105 =*final_price*/ 21*base_amount = final_price / 1.05*Example:*final_price*= $100,*GST*= $100 / 21 = $4.76 and*base_amount*= $100 / 1.05 = $95.24

But you don’t need to know all these formulas and can just use above GST calculator to calculate GST or reverse GST.

Here are some sales tax (GST/VAT) calculators for other countries: