The average period of customer use of the property is 7 days or less. You figure the average period of customer use by dividing the total number of days in all rental periods by the number of rentals during the tax year. If the activity involves renting more than one class of property, multiply the average period of customer use of each class by a fraction. The numerator of the fraction is the gross rental income from that class of property and the denominator is the activity's total gross rental income. The activity's average period of customer use will equal the sum of the amounts for each class.
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