I am a dentist and had two jobs last year where I worked a couple days at one office and a couple of days at the other. I was an independent contractor at one and I was an employee at the other. So, how do I go about deducting my expenses? Can I do them as a contractor or employee? Where would I expense 1) continuing education classes, 2) Convention trips, 3) Malpractice Insurance.. just to name a few

The expenses that you incurred while you were an independent contractor would be listed on Schedule C (Self Employed Income) and the unreimbursed employee expenses that you incurred while you were an employee would be listed on F2106 which is listed on your Schedule A (Itemized Deductions) It is the time factor while you were doing each job that determines what expenses are fully deductable on Schedule C and which are limited to 2% of your adjusted gross income on F2106 on Schedule A

Mobea is correct. The common deductions MUST be pro-rated between the employee and the contractor work.