Home Office Deduction Calculator

Compare simplified ($5/sqft) vs regular home office deduction. See which method saves more.

By Konstantin Iakovlev · Updated April 2026 · Source: IRS — Forms, Instructions & Publications

sqft
sqft
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$
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Simplified Method

$750.00

Regular Method

$2,805.00

Better Method

Regular

Save $2,055.00 more

Simplified Method (Form 8829 not required)

Office Size (max 300 sqft)150 sqft
Rate$5.00 / sqft
Deduction$750.00

Regular Method (Form 8829)

Office % of Home7.5%
Mortgage / Rent$24,000.00
Utilities$4,800.00
Insurance$2,400.00
Repairs / Maintenance$1,200.00
Depreciation$5,000.00
Total Home Expenses$37,400.00
Deduction$2,805.00

Use the Home Office Deduction Calculator above to calculate your results. Enter your values and see instant results — all calculations run in your browser.

Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.

How It Works

Two methods exist for claiming a home office, and this tool compares them to show which yields the larger deduction for the 2026 tax year. Picking the method that maximizes your write-off translates directly into tax savings and more take-home income, so the comparison is worth running before you file.

Under the simplified method, you deduct $5 per square foot of office space up to 300 square feet, which caps the deduction at $1,500. The regular method works differently: it totals the actual expenses tied to the office, including a proportional share of rent, mortgage interest, utilities, insurance, and depreciation, based on the share of your home devoted to business.

Eligibility hinges on the space being used exclusively and regularly for business, and it must serve as your principal place of business, a place where you routinely meet clients, or a separate structure detached from the home. Where filers go wrong is in deducting personal costs or failing to track every eligible regular-method expense across the full year.

Example: Freelance Graphic Designer

  1. 1 Input your home office square footage and relevant expenses: For the simplified method, just enter your office size. For the regular method, input your total annual rent/mortgage interest, utilities, insurance, and any other direct home office expenses.
  2. 2 We'll calculate your deduction under both methods. The simplified method is straightforward: Office Square Footage x $5 (up to 300 sq ft). For the regular method, we'll sum your prorated home expenses (based on office square footage / total home square footage) plus any direct office expenses.
  3. 3 The calculator will display the deduction amount for both the simplified and regular methods, highlighting which option provides the larger deduction for your specific situation. This allows you to choose the most advantageous method for your 2026 tax return.
  4. 4 Use this information to accurately complete your Schedule C (Form 1040) or other relevant tax forms. While the simplified method offers ease, the regular method often yields a higher deduction if you have significant home office expenses. Consult a tax professional for personalized advice.

Source: IRS — Forms, Instructions & Publications · Last updated: April 2026

Frequently Asked Questions

What is the simplified home office deduction?
The simplified method allows $5 per square foot of your home office, up to 300 square feet, for a maximum deduction of $1,500 per year. No need to track actual expenses. You still must use the space regularly and exclusively for business.
When should I use the regular method instead?
Use the regular method when your actual home expenses are high relative to office space percentage. If your office is 200 sq ft in a 2,000 sq ft home (10%), and total home expenses (mortgage interest, utilities, insurance, repairs) exceed $15,000, the regular method gives you more than the $1,000 simplified deduction.
Can W-2 employees claim the home office deduction?
No. Since 2018, the home office deduction is only available to self-employed individuals and independent contractors. W-2 employees cannot claim it on their federal return, even if they work from home full-time. Some states allow it as a state deduction.

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