I often work from home, but the space is not used exclusively for work, so I am not deducting a home office. My tax preparer said that I can deduct a portion of my Internet charges and actual phone expenses. Are there other expenses that I could deduct, such as utilities? If so, what percentage? (A.L., Fremont, CA)

Section 280A(a) makes this very clear: Because you fail to qualify for the home-office deduction, you may not deduct ... Log in to view full article.