Home Office Deduction Agent Skill

Home Office Deduction

Overview

Calculates the home office deduction (Form 8829 or simplified method) for self-employed individuals who use part of their home regularly and exclusively for business. Two methods are available: the simplified method ($5 per square foot) and the actual expense method (percentage of real housing costs).

Wilson Tools Used

• transaction_search — Find mortgage/rent, utilities, insurance, and repair transactions
• spending_summary — Summarize housing-related expenses for the tax year
• export_transactions — Export housing expenses for Form 8829 or CPA review

Workflow

• Confirm the home office qualifies: the space must be used regularly and exclusively for business.
• Ask for the square footage of the office and the total square footage of the home.
• Calculate the business-use percentage: office_sq_ft / total_home_sq_ft.
• Choose a method:

Method 1: Simplified

• Multiply office square footage by $5/sq ft.
• Maximum: 300 sq ft = $1,500 max deduction.
• No depreciation, no Form 8829 required.
• Enter on Schedule C, Line 30.

Method 2: Actual Expenses (Form 8829)

• Use transaction_search to find these expense categories:
• Mortgage interest or rent
• Property taxes
• Homeowners/renters insurance
• Utilities (electric, gas, water, internet, phone)
• Repairs and maintenance
• Depreciation of the home (residential, 27.5-year MACRS for the business-use portion)
• Use spending_summary to total each category for the tax year.
• Multiply each total by the business-use percentage.
• Sum all adjusted amounts. This is the actual expense deduction.
• Compare to the simplified method result and use whichever is larger.

Comparison

| Factor | Simplified | Actual Expenses |

|--------|-----------|----------------|

| Max deduction | $1,500 | No cap |

| Recordkeeping | Minimal | Must track all housing costs |

| Depreciation | Not allowed | Allowed (but recaptured on sale) |

| Form required | None (report on Schedule C) | Form 8829 |

| Best for | Small offices, simple situations | Large offices, high housing costs |

Without Wilson

• Measure your office space in square feet.
• Simplified method: Multiply sq ft (max 300) by $5. That is your deduction.
• Actual expense method:
• Gather 12 months of mortgage/rent statements, utility bills, insurance declarations, and repair receipts.
• Sum each category for the year.
• Calculate business-use percentage: office sq ft / total home sq ft.
• Multiply each expense category total by the business-use percentage.
• Add all adjusted amounts together.
• Fill out Form 8829 and attach to your Schedule C.
• Compare both methods and use the higher deduction (you can switch methods year to year).

Important Notes

• "Regular and exclusive use" is strictly enforced. A guest bedroom with a desk in the corner does not qualify unless the desk area is used only for business.
• Employees working from home generally cannot claim this deduction (eliminated for W-2 employees under the Tax Cuts and Jobs Act through 2025). Only self-employed individuals qualify.
• If you use actual expenses and claim depreciation on your home, you may owe depreciation recapture tax when you sell.
• The deduction cannot create a business loss. Any excess carries forward to next year.
• If you rent, use your rent payment instead of mortgage interest and property taxes.
• This is not tax advice. Consult a CPA or tax professional for filing decisions.