Canadians have noticed for a while now that if we buy something from the iTunes Store, we don't get charged federal or provincial tax, but if we buy something from the App Store, we do. Well, as of January 1, 2019, all content we buy, rent, or subscribe to from Apple will now be charged those taxes.

Here's Apple's statement:

"As the world's largest taxpayer, we respect the important role taxes play in society. Due to recent changes in Canadian legislation and the growth of our business, sales tax will now be charged on purchases of TV, movies, music and audiobooks. Apple has been operating in Canada for 38 years and we are proud to deliver the best products and services in the world to our customers here."

Basically, Apple's older content (iTunes) was run out of the US, and newer (App Store) was run out of Canada. Now, everything is being run out of Canada. So, Canadian taxes now apply (and get contributed from) everything.