Change of HST calculation method

If someone used detailed HST calculation method previous year and this year he do not have all slips for expenses, he didn’t apply to change the calculation method to simplified method within the prescribed time,

  1. Can he still use simplified method ?
  2. If he do, is there any penalty or consequence he will face?

I think you answered your own question

he didn’t apply to change the calculation method to simplified method within the prescribed time,

James Leventakis** **

I think you may be mixing up the “Simplified” method with the “Quick” method.