Ontario (where Toronto is located) has a combined consumption tax (HST) of 13%, with a federal tax of 5% and a provincial tax of 8%.

B.C. (where Vancouver is located) has a separate tax rate of GST+PST, with a federal tax of 5% and a provincial tax of 7%, which adds up to 12%. Another advantage of having separate tax rates is that some goods or services are exempt from provincial tax.

So, Toronto's GST is slightly higher than Vancouver.