You have a Single Member LLC? Is it set up as an S Corp?
If it is not an Single Member LLC S corp it is a disregarded entity and you file it on Schedule C in your personal tax return. You will need to use the online Self Employed version or any of the Desktop CD/Download programs, they all have the same forms.
Where to enter expenses in the Online Self Employed version
https://ttlc.intuit.com/questions/3636848-where-do-i-enter-my-self-employment-business-expenses-like...
