The Home-Office Deduction: Do You Qualify, and Which Method Wins?
The home-office deduction has a reputation as an audit magnet. It isn't — as long as you actually qualify and keep decent records. Here's how to know, and how to pick the method that saves you the most.
Direct answer: You qualify for the home-office deduction if you're self-employed and use part of your home regularly and exclusively as your principal place of business. Then you choose between two methods: the simplified method ($5 per square foot, up to 300 sq. ft., for a $1,500 max) or the regular method (actual home expenses × business-use percentage). The regular method usually wins when your home costs are high; the simplified method wins on ease.
Who qualifies for the home-office deduction?
Two gates. You have to clear both.
Gate 1 — You're self-employed. For tax years 2018 through 2025, the Tax Cuts and Jobs Act suspended the deduction for W-2 employees. So if you work from home as somebody's employee, you generally can't claim it, even if your employer requires remote work. Sole proprietors, partners, LLC members, and S-corp owners (through an accountable-plan reimbursement) can.
Gate 2 — Regular and exclusive use as your principal place of business. The space must be:
- Used regularly for business (not occasionally), and
- Used exclusively for business (this is the strict one), and
- Your principal place of business — or a place you regularly meet clients, or a separate structure used for business.
The exclusive-use rule, in plain English
"Exclusive" means only business happens in that space. A spare bedroom you've converted entirely into an office qualifies. The kitchen table where you also eat dinner does not. A desk in the corner of a room can qualify if that defined area is used solely for business — but the guest bed three feet away using the same "office" won't help you.
There's a practical exception: if you store inventory or product samples in your home for a retail/wholesale business, that space doesn't have to meet the exclusive-use test.
The two methods, side by side
| Simplified method | Regular method | |
|---|---|---|
| How it's calculated | $5 × square footage (max 300 sq. ft.) | Actual expenses × business-use % |
| Maximum deduction | $1,500 | No cap (limited to business income) |
| Recordkeeping | Minimal | Detailed (Form 8829) |
| Depreciation | None | Yes (and recapture at sale) |
| Home itemized deductions | Full amount on Schedule A | Apportioned |
| Best when | Small office, simple taxes | High home costs, larger space |
How the regular method works
The regular method deducts a business-use percentage of your actual home expenses. First, find your percentage:
Office square footage ÷ total home square footage = business-use %
A 250 sq. ft. office in a 2,000 sq. ft. home is 12.5%.
Then apply that percentage to your eligible home costs:
- Mortgage interest or rent
- Property taxes
- Utilities (electric, gas, water)
- Homeowners/renters insurance
- Repairs and maintenance for the whole home
- Depreciation of the home (for owners)
If those costs total $28,000 for the year, 12.5% is a $3,500 deduction — well above the simplified method's $1,500 cap. That gap is why the regular method often wins for owners with real home expenses.
Two things to know about depreciation under the regular method: it can meaningfully increase the deduction, but the depreciation you claim is subject to recapture (taxed) when you sell the home. For many owners the yearly benefit still outweighs the eventual recapture — but it's a real trade-off worth discussing.
Which method should you choose?
A simple way to decide:
- Choose simplified if your office is small, your home costs are modest, or you just want it clean and easy. It also avoids depreciation recapture entirely.
- Choose regular if you have a larger dedicated space and significant home expenses (high rent/mortgage, utilities, California property taxes). Run the number — if it beats $1,500 comfortably, the extra paperwork pays off.
You're allowed to switch methods from year to year, so you can pick whichever is better each time. Many owners calculate both once and go with the winner.
Does claiming it trigger an audit?
This myth costs people real money. Claiming a legitimate, documented home office does not, by itself, trigger an audit. What draws scrutiny is claiming a space that clearly isn't exclusive-use, or numbers that don't add up. Keep a simple file — a photo of the office, your square-footage math, and your expense records — and claim what you're entitled to.
The bottom line
If you're self-employed and you have a space used regularly and exclusively for business, this deduction is yours to take. The only real decision is method, and that comes down to whether your actual home costs beat the simplified $1,500 cap.
Not sure which method wins for your situation — or whether an S-corp owner should reimburse the home office through an accountable plan? That's a quick modeling exercise. Our tax planning service figures both methods for you and folds it into your broader strategy. Book a consultation to get it dialed in.
This is general information, not tax advice. Home-office rules have nuances around principal-place-of-business and S-corp reimbursement — check with a CPA about your setup.
Frequently asked questions
Who qualifies for the home-office deduction? Self-employed people and business owners who use part of their home regularly and exclusively as their principal place of business. W-2 employees generally cannot claim it for tax years 2018 through 2025.
What is the exclusive-use rule? The space must be used only for business — not a guest room that doubles as an office or a kitchen table. A dedicated room or a clearly defined area used solely for business meets the test.
Simplified or regular method — which is better? The simplified method ($5/sq. ft., up to 300 sq. ft., max $1,500) is easier. The regular method (actual expenses times business-use percentage) often produces a larger deduction if your home costs are high. You can switch year to year.
Can employees claim the home-office deduction? No. The Tax Cuts and Jobs Act suspended the employee home-office deduction for tax years 2018 through 2025. Only self-employed individuals and business owners can claim it during that period.
Does the home-office deduction trigger an audit? No — claiming a legitimate, well-documented home office does not by itself trigger an audit. Keep records of your square footage and expenses and claim it if you qualify.