Calculate your home office tax deduction using simplified or regular method. See eligible square footage deduction and potential tax savings.
The home office deduction allows self-employed individuals to deduct a portion of their home expenses—rent, mortgage interest, utilities, insurance, and maintenance—based on the percentage of their home used exclusively for business. It's one of the most valuable deductions for freelancers and small business owners.
The IRS offers two methods: the simplified method ($5 per square foot, up to 300 sq ft, max $1,500) and the regular method (actual expenses × business-use percentage). The regular method often yields a larger deduction but requires detailed record-keeping.
Important: Only self-employed individuals and independent contractors can claim the home office deduction. W-2 employees cannot claim it on their federal taxes since the 2018 Tax Cuts and Jobs Act. This calculator computes your deduction under both methods so you can choose the most advantageous one.
Understanding this metric in precise terms allows professionals to set achievable targets, measure progress objectively, and continuously refine their approach to time and task management.
The home office deduction can save self-employed workers $500–$5,000+ in taxes annually. This calculator computes your deduction under both simplified and regular methods so you can maximize your tax benefit. Consistent measurement creates a reliable baseline for evaluating personal efficiency and identifying the habits and practices that contribute most to achieving professional goals.
Simplified: Deduction = min(Office Sq Ft, 300) × $5 Regular: Business% = Office Sq Ft / Home Sq Ft Regular Deduction = Total Home Expenses × Business%
Result: Regular method: $3,200 vs Simplified: $1,000
Simplified: 200 sq ft × $5 = $1,000. Regular: business-use ratio = 200/1,500 = 13.33%. Deduction: $24,000 × 13.33% = $3,200. The regular method yields $2,200 more. At a 25% tax rate, that's $800 in additional tax savings.
The regular method usually yields a larger deduction when your home office is over 200 sq ft and total home expenses exceed $7,500/year. The simplified method is better for small offices or when you want simplicity and don't have significant home expenses.
Don't claim a space that isn't exclusively used for business. A bedroom that doubles as a guest room doesn't qualify. Don't include expenses for a separate structure (like a detached garage) unless it meets the same exclusive-use test. Keep detailed records if using the regular method.
Many states allow a similar home office deduction. Some states also allow W-2 employees to claim unreimbursed home office expenses that the federal tax code no longer permits. Check your state's rules for additional savings.
Self-employed individuals, independent contractors (1099), and small business owners who use a dedicated space in their home regularly and exclusively for business. The space must be your principal place of business, or where you regularly meet clients. W-2 employees cannot claim this deduction federally.
The simplified method allows $5 per square foot of home office space, up to 300 square feet ($1,500 maximum). No actual expense tracking is needed. You still deduct mortgage interest and property taxes on Schedule A separately. It's simpler but often yields a smaller deduction.
Eligible expenses include: mortgage interest (or rent), property taxes, homeowner's insurance, utilities (electric, gas, water), internet, home repairs and maintenance, and home depreciation. Multiply total expenses by the business-use percentage (office sq ft / home sq ft).
Yes, the business-use percentage of your internet bill is deductible under the regular method. For phone, deduct only the business-use percentage. If 30% of your internet use is business-related, deduct 30% of the bill. Under the simplified method, these cannot be added.
Renters can use the regular method with rent replacing mortgage interest. The calculation is the same: total rent × business-use percentage. For a $2,000/month rent with 15% business use: $2,000 × 12 × 15% = $3,600 deduction.
Yes. The home office deduction reduces your net self-employment income, which in turn reduces both income tax and self-employment tax. On a $3,000 deduction at a combined 35% rate (income + SE tax), you save approximately $1,050.