How do I calculate Paige's business income? Paige sells real estate in the evening and on weekends (considered an active trade or business). She runs her business from a rental office she shares with several other realtors (692 River Road, Bangor, Maine 04401). The name of her business is Turner Real Estate and the federal identification number is 05-8799561. Her business code is 531210. Paige has been operating in a business-like way since 2005 and has always shown a profit. She had the following income and expenses from her business: Commissions earned Expenses: $21,250 Advertising 2,200 Telephone 95 Real estate license 130 Rent 6,000 Utilities 600 She has used her Acura TL in her business since July 1, 2015. During 2015, she properly documented 6,000 business miles (1,000 miles each month). The total mileage on her car (i.e., for both business and personal use) during the year was 15,000 miles (including 200 miles commuting to and from the real estate office). In 2015, Paige elects to use the standard mileage method to calculate her car expenses. She spent $45 on tolls and $135 on parking related to the real estate business.