QC Tax SP is an application to calculate easily TPS and TVQ taxes for all your puchases in Québec, Canada. The application also allows the reverse calculation of taxes. It is therefore possible to obtain the amount before taxes from the amount including taxes.It is already set for the 2012 tax change.Tip calculator built-in with option to include or not taxes.Tested on phone Nexus S and tablet Motorola Xomm.