Home Office Deduction: Requirements, Limits & How to Claim

The home office deduction is one of the most valuable — and most misunderstood — tax breaks available to self-employed individuals. Under IRC § 280A, you can deduct expenses for the business use of your home if you meet specific requirements.

Here's the key rule: you must be self-employed or an independent contractor. After the Tax Cuts and Jobs Act (TCJA) of 2017, W-2 employees can no longer claim the home office deduction on their federal tax return, even if their employer requires them to work from home. This is one of the biggest misconceptions in tax law — millions of remote employees think they can claim this deduction, but they can't (at least not until the TCJA provisions expire after 2025).

If you're a sole proprietor, single-member LLC, partner, or independent contractor who files Schedule C, you're in the right category. Let's look at what else you need.

IRC § 280A sets two requirements that trip up a lot of people:

Exclusive use means the area you designate as your home office must be used *only* for business. If you work at your kitchen table during the day and eat dinner there at night, that space doesn't qualify. If your kids do homework at your desk on weekends, that's a problem. The space doesn't need to be a separate room — a dedicated corner of a room works — but it must be used exclusively for business.

Regular use means you use the space consistently for business, not just occasionally. Working from your home office two days a week on an ongoing basis qualifies. Using a spare bedroom for one project over a couple of weeks doesn't.

There are two exceptions to the exclusive use rule worth knowing. First, if you use part of your home to store inventory or product samples for a business where your home is the only fixed location (IRC § 280A(c)(2)), you don't need exclusive use — just a separately identifiable, regularly used space. Second, if you operate a licensed daycare facility in your home, different allocation rules apply.

The IRS offers a simplified method that makes the home office deduction much easier to calculate. Here's how it works:

You deduct $5 per square foot of your home office, up to a maximum of 300 square feet. That gives you a maximum deduction of $1,500 per year.

The advantages are obvious: no tracking of actual expenses, no depreciation calculations, no complex allocation formulas. You just measure your office space and multiply. If your home office is 200 square feet, your deduction is $1,000. Done.

The downside? If your actual expenses would produce a larger deduction, you're leaving money on the table. The simplified method works best for people with smaller home offices, lower housing costs, or who simply don't want the recordkeeping burden of the actual expense method.

The actual expense method calculates your deduction based on the real costs of maintaining your home, allocated by the percentage of your home used for business.

First, determine your business-use percentage. The most common approach is to divide the square footage of your office by the total square footage of your home. If your office is 250 square feet in a 2,000-square-foot home, your business-use percentage is 12.5%.

Then, apply that percentage to your deductible home expenses:

For many self-employed individuals, especially those in high-cost housing areas, the actual expense method produces a significantly larger deduction than the simplified $1,500 cap. A freelancer paying $3,000/month in rent with a 15% business-use percentage would deduct $5,400 — more than triple the simplified method's maximum.

The trade-off is complexity. You need to track every housing expense, keep receipts, and if you're a homeowner, calculate depreciation on the business-use portion of your home. You may also need to recapture depreciation when you sell.

Your home office doesn't have to be a traditional office. Under IRS Publication 587, qualifying spaces include:

A dedicated room — The most straightforward option. A spare bedroom, converted garage, or finished basement used exclusively for business.

A partitioned area — A corner of a room separated by furniture, a room divider, or even tape on the floor. The IRS doesn't require walls, just a clearly defined space used only for work.

A detached structure — A separate studio, workshop, or garage on your property used for business. These don't even need to meet the exclusive-use test if they're separate from the main home.

What doesn't qualify: your kitchen table (unless you never eat there), your couch, or any space that serves double duty for personal and business activities.

If you run a product-based business — selling on Etsy, Amazon FBA, or through your own website — there's a special exception under IRC § 280A(c)(2) that relaxes the exclusive-use requirement.

You can deduct the cost of using part of your home for storing inventory or product samples if:

1. Your home is the only fixed location of your trade or business 2. You use the storage space on a regular basis 3. The space is a separately identifiable area suitable for storage

This means the corner of your garage where you keep shipping supplies, or the closet full of product inventory, can generate a deduction even if you also park your car in that garage or keep other things in that closet — as long as the storage area itself is identifiable and regularly used for business. This is particularly useful for e-commerce sellers who buy supplies and inventory through Amazon.

WriteOffCoach helps you identify home office-related purchases in your Amazon order history — furniture, equipment, supplies, and more — and maps them to the correct tax rules automatically. Whether an item qualifies under the de minimis safe harbor, Section 179, or as an ordinary business expense, the platform applies the right treatment and generates CPA-ready documentation.

Combined with the home office deduction itself, properly categorized Amazon purchases for your workspace can add up to significant tax savings.