When you are claiming a home office deduction in the Business section, you'll have to pro-rate expenses such as mortgage interest, property taxes and mortgage insurance between the business use (your home office) and personal use (the rest of your home). One acceptance method is to pro-rate by square footage.
You enter the business use portion in the home office deduction in the Business section and the personal use portion in the Personal section under Deductions & Credits.
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"