Can I deduct the annual costs of a monthly software subscription service for my small business, and if so, where do these expenses go?

There are 17 unique categories for entering business expenses in the TurboTax Home and Business program for a Schedule C ( in addition to the vehicle, home office & assets sections).  If you have a particular expense that does not fit in the other 16 categories listed use Other Miscellaneous Expenses at the bottom of the list.