In home office form here there are three fields,GST, HST and exempt. My employer is a GST, HST registrant. How do I fill the form? put the bills sum in both fields ?

[Yackamora]

I'd like to kmow the answer to this question too?  How do I know what is GST or HST exempt?  I just want to be able to maximize my deduction for WFH expenses.

[TurboTaxSusan]

@Yackamora You should be able to see what sales tax was charged on the receipt. If you weren't charged sales tax (ex: you apartment rent), then it's zero rated/exempt.