T2125 & Gst/Hst Remittance - Expenses

Sorry for a repost but the website is not letting me post a comment on my own question.

So, I remitted the GST/HST for my business, and I am not including in my income on the T2125 since it's already dealt with. Do I deduct taxes from all my business expenses likewise? I notice it makes a difference in my refund amount, so I thought I'd ask though I assume if I do not include tax on my income, I would not include it on my expenses.