Form 8829

Expenses for Business Use of Your Home

Every line is explained below in plain English — click any line to see what it means, who needs to fill it in, and what people commonly overlook.

Part I: Business Use Calculation

1 Area Used for Business The square footage of the area in your home that you use regularly and exclusively for business.
2 Total Area of Home The total square footage of your entire home.
3 Business-Use Percentage The percentage of your home that is used for business.

Part II: Allowable Deduction

Part III: Depreciation

41 Depreciation Allowable The depreciation deduction for the business portion of your home.

Part IV: Carryover

43 Operating Expenses Carried Over The amount of operating expenses (utilities, insurance, repairs, rent) from this year or prior years that exceeded your tentative profit limit and are...