The home office deduction, without the audit anxiety

Two expensive mistakes, one deduction

In this industry people either skip the home office deduction entirely (and donate money to the IRS) or claim a space that doesn’t qualify (and invite questions). The rules are specific but fair — and renters qualify too.

Does your space qualify?

• Exclusive and regular use: the space is used for business and nothing else — but it doesn’t have to be a whole room. A clearly defined desk-and-files corner counts; the kitchen table does not.
• Principal place of business: here’s the one owners get wrong — your field work doesn’t disqualify you. If the admin side (scheduling, estimates, invoicing, books) happens at a home desk and you have no other office, your home qualifies. (A shop office you actually use instead would take its place.)
• Or: a space where clients regularly meet with you in person, or a separate structure (a detached garage used only for business gear qualifies on its own — until the Christmas decorations move in).

Two ways to calculate — you choose yearly

• Simplified: $5 per square foot, up to 300 sq ft ($1,500 max). Easy, but unused amounts vanish.
• Actual expense: your business-use percentage (office sq ft ÷ home sq ft) applied to rent or mortgage interest, property tax, insurance, utilities, internet, HOA, whole-house repairs — plus depreciation. Usually bigger, and unused amounts carry forward.

Either way, the deduction can’t exceed the business’s net profit for the year. And S-Corp owners: this doesn’t go on your personal return at all — your company reimburses you through an accountable plan instead.

Watch the full breakdown

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