What to choose in the “location of your business” question when I don’t have a permanent business set up?

You can use your own address if you don't have a specific one for your business.

Thank you for your response.

So even if don’t have a business registered (I use my legal name) and the self employment income was a very small amount I should just use the province I live in? I was a bit confused because it said “Enter the province or territory where your business was located. Only enter a province or territory if you had a permanent business set up there”