Home Office Deduction Guide 2025: Simplified vs. Regular Method
The home office deduction reduces both your income tax and your self-employment tax — because it reduces your net Schedule C profit, which is the basis for both taxes. Most freelancers underestimate how valuable this deduction is.
What qualifies as a home office?
The IRS imposes two requirements that both must be met for the home office deduction to apply:
The space must be used regularly (not just occasionally) and exclusively for business. A dedicated home office room qualifies. A bedroom where you sometimes answer email does not. The space doesn't need to be physically separated by walls — a clearly defined area used only for business (such as a desk partitioned from a living space) can qualify — but the IRS will scrutinize it.
Your home must be your principal place of business — meaning it's where you conduct the primary administrative or management activities of your trade or business. If you have no other fixed location where you conduct those activities, your home qualifies. This applies even if you do the actual work at client sites — as long as administrative work (scheduling, billing, record-keeping) happens at home.
Two methods: which one saves you more?
The IRS allows two ways to calculate the home office deduction. You choose a method each year — you are not locked in permanently.
| Factor | Simplified Method | Regular Method |
|---|---|---|
| How it's calculated | $5 × office sq ft | Actual expenses × (office sq ft ÷ total home sq ft) |
| Maximum deduction | $1,500/yr (300 sq ft cap) | No cap — actual % of expenses |
| Depreciation recapture | None — no recapture when you sell | Yes — must recapture when home is sold |
| Record-keeping | Minimal — just square footage | All home expense receipts required |
| Best for | Small offices, renters, simplicity | Larger offices, higher expenses, homeowners |
| Unused deduction carryover | No carryover allowed | Can carry forward to next tax year |
How to calculate the regular method
The regular method requires two things: your total annual home expenses and the percentage of your home used for business.
Use our free home office deduction calculator to run your own numbers in seconds.
What you can and cannot deduct
- Rent (business-use percentage)
- Mortgage interest (business-use percentage)
- Utilities — electricity, gas, water
- Homeowner's or renter's insurance
- Internet service
- Home repairs and maintenance (proportional)
- Depreciation of the home (regular method only)
- Real estate taxes (business-use percentage)
- General home décor and furniture used personally
- Landscaping and lawn care (unless client-facing)
- Personal phone plan (only business-use portion)
- Mortgage principal payments
- A room used for both personal and business purposes
- A space only used occasionally for work
- Home improvements unrelated to the office space
Common mistakes to avoid
The dining table where you sometimes answer emails does not qualify. The IRS requires the space to be used exclusively and regularly for business — "occasional" or "incidental" use doesn't count. You need a dedicated area.
Your home must be your principal place of business — meaning it's where you conduct the administrative or management activities of your business and you have no other fixed location for those activities. If you work at a client's office full-time, your home office likely won't qualify.
Under the simplified method, your deduction cannot exceed your gross income from the business. Under the regular method, the deduction is capped at your net business profit for the year. Losses attributable to the home office deduction cannot be carried over under the simplified method.
For the regular method, keep records of your home's square footage, the office's square footage, and all expense receipts. The IRS may ask to verify your calculation. Take a photo of your office space and keep a note of when it was set up for business use.
The home office deduction used to be an audit red flag decades ago, but the IRS introduced the simplified method precisely to encourage legitimate use. If you genuinely work from home and meet the requirements, you're entitled to the deduction — and the math is straightforward.
Frequently Asked Questions
Related resources
Let AI track your home office expenses automatically.
MyTaxWriteOffs connects to your bank and categorizes your home expenses year-round. $14/mo or $99/yr.
Get StartedSecured by Plaid · Cancel anytime
Educational content only. This page is for informational purposes and does not constitute legal, tax, or financial advice. Tax laws vary and change frequently. Always consult a qualified CPA or licensed tax professional before making tax decisions.