Telig_7 Gillett

I'm a fitness instructor and personal trainer and pay a proportion of tax on self assessment. I have invested in a pilates course. Is it permitted to set this against tax ? Or would it be considered a new business type that's not related to my current one and thus not permissible?

I invested in a business through a bond. Essentially an unsecured loan to the company. They pay a yearly dividend. That payment is made after tax is paid. My questions are where do I put that on the HMRC Self assessment return? Also will tax be then reapplied? If so , I'm paying tax twice on that income?