If you was an employee - all business related expenses should be deducted on the schedule A and are subject of 2% floor limitation.
see - http://www.irs.gov/pub/irs-pdf/f1040sab.pdf line 21.
You also might be required to file the form 2106 - http://www.irs.gov/pub/irs-pdf/f2106.pdf
see instructions here - http://www.irs.gov/pub/irs-pdf/i2106.pdf
You may not deduct expenses related to your employment as self-employed business expenses.
If you think you was classified incorrectly as an employee instead of self-employed contractor - you need to contact the company and ask to change classification.
Facts that provide evidence of the degree of control and independence fall into three categories:
-- Behavioral: Does the company control or have the right to control what the worker does and how the worker does his or her job? -- Financial: Are the business aspects of the worker's job controlled by the payer? (these include things like how worker is paid, whether expenses are reimbursed, who provides tools/supplies, etc.) -- Type of Relationship: Are there written contracts or employee type benefits (i.e. pension plan, insurance, vacation pay, etc.)? Will the relationship continue and is the work performed a key aspect of the business?
If, after reviewing the three categories of evidence, it is still unclear whether a worker is an employee or an independent contractor, Form SS-8, Determination of Worker Status for Purposes of Federal Employment Taxes and Income Tax Withholding can be filed with the IRS. The form may be filed by either the business or the worker. The IRS will review the facts and circumstances and officially determine the worker's status.