It's harmonized sales tax (taking GST & PST and putting them together) & they only have it in Ontario & BC.
Basically they govt. was pissy because there was certain things they weren't making money off of so they brought in HST so that they could.
Ie: Gas / Diesel was only taxed with GST I believe which was 7%. Now with HST gas / diesel is taxed at a full 13%. Same goes with many other things.
