Most Canada Post products and services are subject to the goods and services tax (GST) or provincial sales taxes, including provincial sales tax (PST), Quebec sales tax (QST) or harmonized sales tax (HST).

There are some exceptions, as described below.

International destinations and Canadian Armed Forces post offices

There is no sales tax if the total price per transaction (for single or multiple items) is $5 or more.

The following taxes apply if the cost is less than $5:

• GST and QST if mailed within Quebec (Que.).
• HST if mailed within Ontario (Ont.), Prince Edward Island (P.E.I.), New Brunswick (N.B.), Nova Scotia (N.S.), and Newfoundland and Labrador (N.L.).
• GST only when mailed from Manitoba (Man.), Saskatchewan (Sask.), Alberta (Alta.), British Columbia (B.C.), Nunavut, Northwest Territories (N.W.T.), and Yukon (YK).

Lettermail™ and parcels within Canada (consumer) 

• Pay only GST when mailed from B.C., Alta., Sask., Man., Nunavut, N.W.T. and Yukon.
• Pay only GST if mailed from Ont., P.E.I., N.B., N.S. and N.L. to Que., Man., B.C., Sask., Alta., Nunavut, N.W.T., Yukon and the total price (single or multiple items) is $5 or more and taken at the counter at the time of payment.
• Pay HST if the total is less than $5 and the item is mailed from Ont., P.E.I., N.B., N.S. or N.L.
• Pay GST only if mailed from Que., with a total price per transaction of $5 or more, and taken at the counter at the time of the transaction.
• Pay GST and QST if mailed from Que. and the total transaction price is less than $5.

Priority™, Xpresspost™ and commercial parcels within Canada

• Pay HST if mailed to ON., P.E.I., N.B., N.S. and N.L.
• Pay GST if mailed to , Man., Sask., Alta., B.C., Nunavut, N.W.T. and Yukon.

Lettermail™, Canada Post Personalized Mail™, Canada Post Neighbourhood Mail™ and Publications Mail™ commercial mailings within Canada

• Pay HST if mailed in Ont., N.B., P.E.I., N.S. or N.L.
• Pay GST and QST if mailed from Que.
• Pay only GST if mailed in other provinces and territories.