A trade or business can have more than one location. To qualify
for a business use of home deduction, the home must be the
principal place of business for that trade or business. To make
this determination, the following are considered.
• The relative importance of the activities performed at each
place where business is conducted, and
• The amount of time spent at each place where business is
conducted.
A home office qualifies under this test if:
• The home office is used exclusively and regularly for administrative or
management activities of the trade or business.
• There is no other fixed location where substantial administrative or
management activities are conducted.