Software deduction on personal return

I purchased QB accounting software last year.  I do bookkeeping for a few small companies.  I am using Turbo tax for my 2019 taxes.  Can I deduct the purchase of the QB accounting software?  If so, where in Turbo Tax do I make that deduction?  Under Business Expenses, I do not know where to add this cost?  

 

Thank you in advance for your assistance.