Exactly. There are all the tax-deductible business expenses (rent, utilities, transportation, meals, etc.) plus all the issues related to renting out your own residence, which is unbelievably complicated.

Apparently there are a lot of potential tax deductions for expenses related to a sabbatical like travel.

http://m.chronicle.com/article/Tax-PlanningSabbatical/126293/

Yes, through many sabbaticals I've never done anything different. I get my salary just like before. Maybe you're looking for tax breaks of some sort? Or maybe it isn't technically a sabbatical?

Are you normally in the US? Why is it so complicated? How come it isn't just a question of basing the taxes on whatever the income is (even if it's $0)?

My husband is taking a US-based academic sabbatical in 2014-15. The tax implications are mind-bogglingly complex. I have hitherto always done our taxes myself, but I would really rather avoid wading into the sabbatical tax morass. So, I am looking for recommendations for a tax adviser with experience and expertise in dealing with the myriad sabbatical tax issues. Thanks in advance!