How do I close old HST on Sales/Purchases accounts that were not closed after inital migration?

Hi Lwhitty, 

Welcome to the Community. QuickBooks is an easy-to-navigate program that helps you to manage your accounting with ease. I'll be happy to share more info so you're on the right track with your work. 

In order to accurately record your transactions, I highly recommend consulting an accounting specialist for expert suggestions. This ensures your books remain accurate while you continue to manage your work with peace of mind. You can also get in touch with a professional using this link here. Other accounting professionals are able to see this post in the Community and this will allow them to chime in. 

Let me know if this info helps. Otherwise, feel free to ask questions in the comments below.