How much home office deduction can I take for 2026 or 2027 planning?

Use this home office deduction calculator to compare simplified and actual expense methods for a qualifying business workspace. It estimates deduction value from square footage, business-use percentage, and eligible home expenses.

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home office deduction calculator

Quick answer

A home office deduction generally requires regular and exclusive business use. The simplified method uses a rate per square foot, while the actual method allocates eligible home expenses by business-use percentage.

Also answers

  • simplified home office deduction
  • actual expense home office calculator
  • Schedule C home office deduction
  • business use of home calculator

Good fit when

  • Comparing simplified and actual methods
  • Estimating Schedule C home office deduction
  • Planning recordkeeping for home business use

Have ready

  • Office and home square footage
  • Mortgage, rent, utilities, insurance, and repairs
  • Business-use percentage and method choice

Result you get

Estimated home office deduction by method.

How this calculation works

  • Simplified method multiplies office square feet by $5 up to 300 sq ft.
  • Actual method allocates home expenses by office-use percentage.
  • Compares both methods to show potential deductions.

Common mistakes and caveats

  • Home office deductions may be limited by business income.
  • Expenses must be properly allocated between personal and business use.
  • Rules differ for employees versus self-employed filers.

FAQ

Is the simplified method limited?

Yes. The simplified method uses $5 per square foot up to 300 square feet.

Last updated & sources

Last updated June 4, 2026.

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