March Quiz: Home Office Tax Deductions: Shannel R. works 40+ hours a week at her small downtown Kennewick office that she rents. She also spends 12 hours a week working at home doing all the administrative tasks required for her consulting business.
Question 1 about Home Office Tax Deduction
Can Shannel claim tax deductions for any of these?
A. Her downtown office only
B. Her home office only
C. Neither office
D. Both offices

Answer:
D. Shannel can claim deductions for both offices.
Question 1 Explanation
Over the years, we’ve come across many small-business owners and tax advisors who believe that a home office is not deductible unless it’s the only place of business.
We designed this question-and-answer scenario to debunk the only-office misconception and illustrate that office space inside your home may qualify for a home-office deduction even if you also have an office for the same business outside your home.
Repairs and other costs related to maintaining a home are normally considered nondeductible personal expenses under the tax code. But exceptions apply.
One of the most notable is Section 280A(c)(1)(A), which allows for deductions of costs allocable to a portion of the home the taxpayer uses “exclusively on a regular basis” as her “principal place of business.” (We’ll explain what each of these terms means later.)
So which office is Shannel’s “principal place of business”?
Logic suggests it’s the downtown office since Shannel spends 40 hours there and only 12 in the home office.
But, alas, many are the occasions when tax law and logic go their separate ways. And as we’ll see, under tax law rules, the home office is, in fact, Shannel’s “principal place of business.” Result: Shannel can claim deductions on both offices.
So D is the correct answer.

Why Wrong Answers Are Wrong
A is wrong because Shannel can claim her home office as her principal place of business.
To see why this is true, look at Section 280A(c)(1) of the tax code:
The term “principal place of business” includes a place of business which is used by the taxpayer for the administrative or management activities of any trade or business of the taxpayer if there is no other fixed location of such trade or business where the taxpayer conducts substantial administrative or management activities of such trade or business.
Since Shannel does all her administration in the home office and none in the downtown office, the home office is her principal office. Here, tax law overrules the Merriam-Webster definition of what is “principal.”
And the IRS agrees with the administrative part and goes on to say:
You can have more than one business location, including your home for a single trade or business.
Translation. Having a second office location doesn’t rule out the home-office deduction.

Question 2. When is the home-office deduction allowed when you have more than one business location?
We’ll answer that question when we talk about Choice C below.
B Is Wrong
B is wrong because Shannel can deduct her downtown office. The home-office deduction has no effect on Shannels’s downtown office tax deductions.
C Is Wrong
C is wrong because you may deduct both offices.

Principal Place of Business
Let’s prove that the home office is the principal place of business.
To do this, take a quick look back at the quoted language from Section 280A(c)(1)(A). Note that we underlined three words/phrases—“exclusive” use, “regular” use, and “principal place of business.” To claim the home-office deduction the way she wants, Shannel must meet all three of these requirements.
Since the Code doesn’t specifically define these terms, we need to find the crucial missing details in the IRS guidance, legislative history, and case law. Let’s now go through the requirements one by one.
Requirement 1: Exclusive Use-Home Office Tax Deduction
To meet the “exclusive use” requirement, Shannel must use a specific area of her home, i.e., a room(s) or other “separately identifiable space,” only for her trade or business.
Rule of thumb. Use the office area exclusively for the business for which you seek the deduction and for nothing else.
De minimis personal use. Tax courts tolerate some personal or mixed-use as long as it’s de minimis, i.e., minor to the point of insignificant.
What’s the difference between de minimis personal use and personal use significant enough to violate the “exclusive use” requirement?
The answer varies from case to case!
Takeaway. Do not hope that the de minimis rule will save your home-office deduction. Instead, use the home-office area exclusively for business.

Requirement 2: Regular Use-Home Office Tax Deduction
To claim the Home Office Tax Deduction, Shannel must also use the office on a “regular” basis. “Incidental or occasional business use” is not regular use, notes the IRS.
According to the IRS audit manual, “regular use” means use “on a continuing basis.”
In court, the following uses survived “regular use” scrutiny:
New York Times editor used his home office for an average of one conversation per night (including many conversations requiring more than one call to complete) with politicians, labor leaders, and other public figures.
An account executive used his home office to field client calls 2.25 hours a night for five nights a week because he couldn’t be reached during the day.
If you want a clear target for the number of hours to meet the regular use test, we suggest it’s using the office for 10 or more hours a week. Note that the 10 or more hours can include all activities (administrative, sales, etc.).

Requirement 3: Principal Place of Business-Home Office Tax Deduction
Shannel has three choices for the home office deduction. She can deduct a home office when she uses a portion of her home exclusively and regularly
- as her principal place of business;
- as a meeting place for patients, clients, or customers; or
- in the case of a separate structure that’s not attached to the dwelling, in connection with Shannel’s business.
So that she can eliminate commuting mileage from her home to her regular office, Shannel wants her home office to qualify as her principal place of business.
Section 280A(c)(1) says that your home office qualifies as a principal place of business when you use it for your business’s administration or management and you use no other fixed location to conduct substantial administrative or management activities. The IRS gives you the following examples of administrative or management activities:
- Billing customers, clients, or patients
- Keeping books and records
- Ordering supplies
- Setting up appointments
- Forwarding orders
- Writing reports
In Addition
The IRS gives you examples of activities that won’t disqualify you from getting the home-office deduction, including:
- having others conduct administrative or management activities at locations other than the home, e.g.,
- hiring another company to do billing for the taxpayer’s business at the billing company’s location;
- conducting administrative or management activities at locations that are not fixed locations of the taxpayer’s business;
- “occasionally” conducting “minimal” administrative or management activities at a fixed location outside the taxpayer’s home;
- conducting “substantial” non-administrative or non-management business activities outside the home, e.g., meeting with clients at outside locations; and
- choosing to conduct administrative or management activities at home even though the taxpayer has suitable space to conduct them outside the home.
Shannel’s home office meets the tests. Accordingly, it’s her principal place of business and Shannel can claim her home-office deduction. Moreover, because of the “principal place of business” qualification, Shannel gets the second benefit of “no commuting” from her home office to her regular office.

Are you like Shannel? Do you have a home office, is it Home Office Tax Deduction to you? Is it a principal office that eliminates commuting?
If you are not getting this double benefit, be more like Shannel. Ask us how by calling 509-543-7600 or sending a request HERE.
March 2022
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