The Home Office Deduction

Under the IRS rules, a taxpayer is allowed to deduct expenses related to business use of a home, but only if the space is used "exclusively" on a "regular basis". To qualify for a home office deduction you must meet one of the following requirements:

1. Exclusive and regular use as your principal place of business

2. A place for meeting with clients or customers in the ordinary course of business

3. A place for the taxpayer to perform administrative or management activities associated with the business, provided there is no other fixed location from which the taxpayer conducts a substantial amount of such administrative or management activities

A separate structure not attached to your dwelling unit that is used regularly and exclusively for your trade or profession also qualifies as a home office under the IRS definition.

The exclusive-use test is satisfied if a specific portion of the taxpayer's home is used solely for business purposes or inventory storage. The regular-basis test is satisfied if the space is used on a continuing basis for business purposes. Incidental business use does not qualify.

In determining the principal place of business, the IRS considers two factors: Does the taxpayer spend more business-related time in the home office than anywhere else? Are the most significant revenue-generating activities performed in the home office? Both of these factors must be considered when determining the principal place of business.