I would appreciate help with the following situation.  Thank you 

 1. Taxpayer (Sole Proprietor, Schedule C) purchased material and supplies with credit cards and with a business loan he is repaying. According to my AFSP teacher material is deductible when purchased even if is with a credit card that has not been repaid....?

     2.      What about the material bought with the business loan? (is not PPP) Can I deduct it in 2024 year when purchased even if the loan has not been fully repaid? 

 3. What about if those purchases were to generate a loss in Schedule C, would they be an acceptable deduction?