Home Office Deduction Calculator
If you use part of your home regularly and exclusively for business, you can deduct it using the IRS simplified method ($5/sq ft, up to 300 sq ft) or the actual expense method (your business-use percentage of real home costs). Enter your numbers to see which one saves you more for 2026.
Business-use percentage
10.0%
Simplified method
$750
$5/sq ft, up to 300 sq ft
Actual expense method
$2,300
10.0% of $23,000 in home expenses
Tax impact of the actual expense method
Deduction amount $2,300
Total tax without deduction $15,495
Total tax with deduction $14,965
Estimated tax savings $530
Home office deduction by state
The deduction itself is a federal (and usually state) income calculation, but your savings depend on your combined tax rate. Jump to your state:
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