Thank you! I can claim it as an investment expense and then also claim under CCA, right?

New appliances are considered Capital Assets and claimed for CCA purposes only. Not as current expenses as they have lasting value and should be depreciated (CCA) over a period of time.

does this also apply to new vehicle additions? do I include gst/qst in the total cost?

Your passenger vehicle can belong in either Class 10 or Class 10.1. To determine the class your passenger vehicle belongs, you have to use the cost of the vehicle before you add the GST/ PST , or the HST .

Include your passenger vehicle in Class 10.1 if you bought it in your 2017 fiscal period and it cost more than $30,000. List each Class 10.1 vehicle separately.

We consider the capital cost of a Class 10.1 vehicle to be $30,000 plus the related GST/HST, or PST. The $30,000 amount is the capital cost limit for a passenger vehicle.

https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/sole-proprietorships-partners...

thank you