Home Office Deduction: What Actually Qualifies
The home office deduction is one of the most frequently claimed - and most frequently done incorrectly - deductions for self-employed individuals.
The Exclusive Use Test
Simplified Method
$5 per square foot of office space, up to 300 square feet. Maximum deduction: $1,500. No need to track individual housing expenses.
Actual Method
Calculate office percentage (office sq ft ÷ total home sq ft). Apply to actual housing costs: mortgage interest or rent, property taxes, utilities, insurance, repairs, depreciation.
Why It's Doubly Valuable
For sole proprietors, the home office deduction reduces both income tax and self-employment tax. A $3,000 deduction saves roughly $720 in income tax (at 24%) plus $459 in self-employment tax - nearly $1,200 total.
The bottom line
W-2 employees cannot claim the home office deduction. It's available only to self-employed individuals.
What would you do?
Alex uses a 200 sq ft dedicated office in her 2,000 sq ft home for her consulting business. Annual housing costs: $30,000.
Your Move
Measure your dedicated office space. Calculate your total annual housing costs (mortgage/rent, utilities, insurance, maintenance). Compare the simplified method to the actual method at your square footage and cost levels.
Sources
- Internal Revenue Service, Publication 587
Business Use of Your Home (home office deduction, simplified vs. actual method)
Educational information only. Not financial, tax, or legal advice or a recommendation. Figures are drawn from the primary sources cited above; verify current amounts with the source before acting.
Educational content only. Not financial, tax, or legal advice. Consult a qualified professional before making decisions based on your specific circumstances.
Last reviewed: April 2026