Your desk corner is a tax deduction. Two ways to claim it.
The IRS gives you a choice: flat $5 per square foot, or a slice of your real housing costs. This tool runs both and tells you which wins.
Tax data last updated: July 2026. Sources & methodology
Your space
The part of your home used regularly and exclusively for work.
Whole apartment or house, in square feet.
Rent or mortgage interest, utilities, insurance, repairs — the full year.
The actual-expense method wins for you — worth the extra recordkeeping.
- Simplified method ($5/sq ft, max 300)
- $750
- Actual method (12.5% of expenses)
- $3,000
The space must be used regularly and exclusivelyfor work — a desk in the corner of your bedroom counts, the kitchen table doesn't. The actual method has extra rules for homeowners (depreciation, later recapture) this tool doesn't model. Not tax advice.
How this is calculated
The simplified method is five dollars per square foot of office space, capped at 300 square feet — a maximum of $1,500, no receipts required. The actual method takes your real annual housing costs (rent or mortgage interest, utilities, insurance, repairs) and deducts the percentage of your home the office occupies.
Rule of thumb: renters in expensive cities usually win with the actual method, because high rent makes even a small percentage worth more than $5 a square foot. Homeowners and people with cheap housing usually take the simplified method and keep their weekend.