Hello @applausible for employee expenses, you would enter the total amount paid, including HST. You must have paid the GST or HST on your expenses and included them on your tax return before you can claim the rebate. Here is a blog post that can help https://turbotax.intuit.ca/tips/did-you-know-you-can-claim-the-gst-hst-rebate-on-your-expenses-12072
Happy Filing!
