How do I record a home office expense without applying the GST to ITCs.

Hi userrosiew45,

Glad to have you reach out to us again. It's vital you're able to record your transaction the right way and I'll be glad to point you in the right direction. QuickBooks is an easy-to-use program that simplifies the way you manage your accounting. 

In order to ensure accuracy in your books, I recommend contacting an accounting professional for expert advice using this link here. I'll also leave this question open as other Community members can chime in and share their advice on how to accurately record your transactions. 

Give this a try and let me know how you make out. I'll be one message away in case you need anything.