Can a landlord take a home office deduction?
Possibly, but only if your rental activity rises to a trade or business and the space is used regularly and exclusively for it. Publication 587 says a profit-seeking activity that is not a trade or business gets no home office deduction, and whether a rental counts depends on your facts, so this is a question to settle with your tax preparer.
The first question: is your rental a trade or business?
Publication 587 says that to qualify under the trade-or-business-use test, you must use part of your home in connection with a trade or business. It adds that if you use your home for a profit-seeking activity that is not a trade or business, you cannot take a deduction for its business use. Its example is someone reading financial reports about their own investments.
Owning rental property can fall on either side of that line. Someone with one rented condo and a manager who handles everything looks more like an investor. Someone who self-manages several apartment buildings, screens tenants, schedules repairs and keeps the books looks more like a business. The IRS does not give a single unit count or hour count for this test. Note that the 250-hour safe harbor for the QBI deduction applies, in the revenue procedure's own words, solely for the purposes of section 199A, so meeting it does not by itself settle the home office question.
The space tests
If the activity is a trade or business, the space itself must pass Publication 587's tests:
| Test | What it means for a landlord |
|---|---|
| Exclusive use | A specific area used only for the rental business. A desk in the guest room that guests also use fails. |
| Regular use | Used for the business on a regular basis, not now and then. |
| Principal place of business | Met if you use the space exclusively and regularly for administrative or management activities, such as billing, keeping books, ordering supplies and setting up appointments, and meet the publication's other conditions. |
For most self-managing owners the third test is the practical route: rent tracking, bookkeeping, vendor scheduling and tenant calls are exactly the administrative and management work the publication describes.
How much you can deduct
Publication 587 offers a simplified method: $5 times the square footage of the qualifying area, with the area limited to 300 square feet. The alternative is the regular method, which takes a share of actual home expenses based on the office's percentage of the home.
Example a made-up owner who self-manages 40 units uses a 140 square foot room only for the rental business. Under the simplified method the deduction is 140 x $5 = $700. If the room were 360 square feet, the simplified method would stop at 300 x $5 = $1,500.
Publication 587 also says the simplified method does not apply to rental use. That sentence is about renting out part of your own home, not about an office used to run rentals elsewhere.
The bigger prize may be mileage
Publication 527 says trips between your home and a rental property are generally nondeductible commuting, unless you use your home as your principal place of business. So a qualifying home office can matter more for your driving than for the office deduction itself. An owner who drives 3,000 rental miles a year from home is looking at a larger number than $700 of office deduction. See landlord mileage for the rates and the log.
Building the paper trail
- A floor plan or photo showing the office and its square footage.
- Evidence the work is regular: dated books, emails with tenants and vendors, the rent roll you keep.
- A calendar or log of time spent on the rentals, which also helps with the QBI safe harbor and the passive activity rules.
- Nothing personal stored or done in the space.
How DoorKeeping handles it
DoorKeeping lets you run your buildings by asking Claude or ChatGPT, with a web app for approvals and dashboards, so the administrative work happens wherever you are and leaves a dated record in each property's books. That record can support the time and activity your tax preparer asks about. DoorKeeping does not decide whether you qualify for a home office deduction or give tax advice.
Sources
- IRS, Publication 587, Business Use of Your Home, read Oct 29, 2026
- IRS, Publication 527, Residential Rental Property, read Oct 29, 2026
- IRS, Revenue Procedure 2019-38, read Oct 29, 2026
Questions
- Can I deduct a home office if I only own one rental?
- Often not, because Publication 587 requires a trade or business, and a single passively held rental may look more like an investment. Your tax preparer can judge your facts.
- What is the simplified home office deduction?
- Publication 587 sets it at $5 per square foot of the qualifying area, for up to 300 square feet, so at most $1,500.
- Does a home office make my drives to the rental deductible?
- It can. Publication 527 says trips from home to a rental are commuting unless your home is your principal place of business.