Acting is a business. The government allows you to write off acting expenses up to the income you earned through acting.
Be sure to keep records of anything remotely related to acting and consult your tax adviser for additional information about your deductions. Save your receipts, invoices, stubs, etc. Below is a list of possible deductions:

• Mailing labels and mailing expenses
  
• Headshots (photographer's fees and printing costs)
  
• Resume (duplication costs)
  
• Acting classes, seminars, and workshops (ask for an invoice or receipt)
  
• Travel expenses to and from auditions (standard mileage deduction)
  
• Meal and lodging expenses incurred while working as an actor
  
• Acting books
  
• Telephone bills (including the cost of cell phone)
  
• Clothing and makeup used for acting
  
• Dry cleaning expenses and office supplies
  
• Demo tapes
  
• DVD rentals and admissions to movies and plays
  
• Union dues

Remember, any deductible expenses must be used exclusively for acting career. Consult your tax adviser for additional information about your deductions.