I am an Financial Advisor for an insurance company (T4A, self-employed commission). I bought a book of business from a retiring colleague. I had to get a personal loan to do that. Is the interest I pay on that loan tax deductible, and if yes, should I deduct it on Schedule 4 or T2125? Thank you.

I am not incorporated, and the commission income is reported on a T4A. I file as a self-employed taxpayer.