Home Office Deduction Rules You Need to Know

green home office with desk, chair, computer and plant — (Image credit: Getty Images)

If you spent the last year working from your guest room or garage, you've likely felt the sting of unreimbursed office expenses. From printer ink and paper to the cost of maintaining a dedicated workspace, out-of-pocket costs can add up.

The good news is that a home office tax deduction exists to help certain taxpayers recoup these expenses on their federal income tax return.

The catch? Eligibility depends strictly on your employment status. The IRS currently limits this deduction to self-employed individuals, freelancers, and small business owners. So, here's what you need to know about the home office tax deduction before you file this tax season.

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Home Office Tax Deduction

Track your expenses. If you qualify for the home office deduction, start tracking qualified expenses now.
Measure your space. Take accurate measurements of your eligible home office to prepare for either deduction method.
Maintain good records. Keeping complete records of your deduction method, qualified expenses, and other documentation relating to your home office may help in the event of an IRS audit.

Main Points

Work from home tax deductions

If you work from home, you may be able to deduct your business-related expenses, and you could be eligible for the "home office tax deduction." This tax break lets you write off expenses for the business use of your home. However, whether you can claim either of these deductions depends on your employment status.

Employees miss out. If you're a regular employee working from home, you can't deduct any of your related expenses on your tax return.

In the past, you could claim an itemized deduction for unreimbursed business expenses, including expenses for the business use of part of your home if they exceeded 2% of your adjusted gross income.

However, that deduction was suspended under the 2017 Tax Cuts and Jobs Act (TCJA), and later permanently eliminated with the enactment of the 2025 Trump tax bill.

For more information, check out Kiplinger's report Three Popular Tax Breaks Are Gone for Good in 2026.

Tax deductible home office expenses

Self-employed people can generally deduct office expenses on Schedule C (Form 1040), whether or not they work from home. Here are a few examples of what this write-off covers:

Office supplies
Postage
Computers
Printers

...and all the other ordinary and necessary things you need to run a home office.

But the home office tax deduction is an often-overlooked tax break for the self-employed. It can cover expenses for the business use of your home, including mortgage interest, rent, insurance, utilities, repairs, and depreciation.

What qualifies for the home office deduction?

Self-employed individuals may claim the home office tax deduction and, consequently, might lower their tax bill. Yet to qualify, you must use part of your home "regularly and exclusively" as your principal place of business.

If you only work from home for part of the year, you can only claim the deduction for the period that you can satisfy the "regularly and exclusively" requirements.

"Regular use" means you use a specific area of your home (e.g., a room or other separately identifiable space) for business regularly. Incidental or occasional use of the space for business doesn't count.
"Exclusive use" means you use a specific area of your home only for your trade or business.

The space doesn't have to be marked off by a permanent partition, but you can't claim the home office deduction if you use the space for business and personal purposes. However, the exclusive use requirement might not apply if you use part of your home for the storage of inventory or product samples, or as a daycare facility.

Additionally, the space must also be used:

As your principal place of business for your trade or business;
To meet or deal with your patients, clients, or customers in the normal course of your trade or business; or
In connection with your trade or business, if it's a separate structure that's not attached to your home.

It doesn't matter what type of home you have (e.g., single-family, townhouse, apartment, condo, mobile home, or boat). You can also claim the home office tax deduction if you worked in an outbuilding on your property, such as an unattached garage, studio, barn, or greenhouse.

(See IRS Publication 587 for more information about these and other requirements for the home office deduction.)

Note: You cannot claim the home office tax deduction for any part of your home or property used exclusively as a hotel, motel, inn, or the like.

How much you may claim for your home office

If you qualify, there are two ways to calculate the home office deduction.

Under the "actual expense" method, you essentially multiply the expenses of operating your home by the percentage of your home devoted to business use. If you work from home for part of the year, only include expenses incurred during that time.
Under the simplified method, you deduct $5 for every square foot of space in your home used for a qualified business purpose. Again, you can only claim the deduction for the time you work from home.

For example, if you have a 300-square-foot home office (the maximum size allowed for this method), and you work from home for three months (25% of the year), your deduction is $375 ((300 x $5) x 0.25).

Tax Tip: If you use the simplified method, you can't depreciate the part of your home used for business. However, to the extent you qualify, you can still claim itemized deductions for mortgage interest, real property taxes, and casualty losses for your home without allocating them between personal and business use.

The deduction is claimed on Line 30 of Schedule C (Form 1040).
If you use your home for more than one business, file a separate Schedule C for each business.
Don't combine your deductions for each business on a single Schedule C.

If you use the actual expense method to calculate the tax break, also complete Form 8829 and file it with the rest of your tax return. If you use more than one home for business, you can file a Form 8829 for each home or use the simplified method for one home and Form 8829 for others.

Combine all amounts calculated using the simplified method and amounts calculated using Form 8829, and then enter the total on Line 30 of the Schedule C you file for the business.

Can I write-off my side hustle on my taxes?

If you're an employee at a "regular" job, but you also have your own side hustle, you can claim deductions for business expenses and the home office deduction for your own business — if you meet all the requirements.

After all, being an employee doesn't mean you can't also claim the deductions you're entitled to as a self-employed person.

Rocky Mengle was a Senior Tax Editor for Kiplinger from October 2018 to January 2023 with more than 20 years of experience covering federal and state tax developments. Before coming to Kiplinger, Rocky worked for Wolters Kluwer Tax & Accounting, and Kleinrock Publishing, where he provided breaking news and guidance for CPAs, tax attorneys, and other tax professionals. He has also been quoted as an expert by USA Today, Forbes, U.S. News & World Report, Reuters, Accounting Today, and other media outlets. Rocky holds a law degree from the University of Connecticut and a B.A. in History from Salisbury University.

With contributions from