Sage 50 Canada

Hello, I am wondering if there is a way to add a 3% fee to invoices that would automatically be calculated on an amount, similar to HST. I considered setting it up as a sales tax of sorts, however, from what I understand, you cannot have two tax codes…

We are a company that rents items to clients. We have our rental items setup in Sage as inventory items. Often, we rent 1 item for multiple days. On the quote / invoice, we have to put '3', if the client rented it for 3 days. Many clients are confused…