Home Office Deduction in 2026: Simplified Method vs. Actual Expenses

Short version: the simplified method gives you $5 per square foot of qualified business use, up to 300 square feet, so the most you can deduct that way is $1,500. The actual-expense method instead deducts the business percentage of your real home costs (utilities, insurance, depreciation, and more), which can be larger but takes more paperwork. Either way, the space has to be used regularly and exclusively for business. Pick simplified when your costs are modest and you want it clean. Pick actual when your real home expenses are high enough to beat $1,500.

What “Regular and Exclusive” Actually Means

This is the part people get wrong, so start here. To claim a home office at all, the space generally has to pass two tests: regular use and exclusive use.

Regular means you use it for business on a continuing basis, not once in a while. Exclusive is the strict one. The area you claim has to be used only for business. The kitchen table where you also eat dinner does not qualify. A spare bedroom that doubles as a guest room does not qualify for the nights it has a guest in it. The IRS isn’t asking for a separate building, but it is asking for a defined space that does nothing but business.

There are a couple of narrow exceptions (for example, storage of inventory or running a daycare), but most freelancers and small business owners live and die by regular-and-exclusive. If your space fails it, no method saves the deduction.

The Simplified Method

The simplified method is built for people who’d rather not track every utility bill. You measure the square footage of the qualifying space, multiply by $5, and stop at 300 square feet. That’s a hard cap, so the biggest deduction this method ever produces is $1,500.

No depreciation. No splitting up your electric bill. No Form 8829. You just report the deduction. The tradeoff is that you might leave money on the table if your actual home costs are high.

The Actual-Expense Method

The actual-expense method deducts the business-use percentage of your home costs. You figure that percentage (usually the office’s square footage divided by the home’s total square footage), then apply it to expenses like mortgage interest or rent, utilities, homeowners or renters insurance, repairs, and depreciation if you own.

Some costs are direct (painting just the office) and come in at 100 percent. Others are indirect (the whole home’s electric bill) and get prorated. This method can clearly beat $1,500, but it asks for receipts and math, and it’s where Form 8829 usually comes in.

Homeowners vs. Renters

Both can claim a home office. Renters apply the business percentage to rent and renter-related costs. Homeowners can include mortgage interest, real estate taxes, and depreciation on the business portion. Homeowners should know that claiming depreciation has tax consequences when you sell the home later, so it’s worth a conversation with a preparer before you lean on it.

A Worked Example

Say your office is a dedicated 200-square-foot room used regularly and exclusively for your freelance work.

Simplified method: 200 sq ft x $5 = $1,000.
If that room were 350 sq ft, the simplified method still only counts the first 300 sq ft: 300 x $5 = $1,500 (the cap).

Now suppose your home is 2,000 sq ft, so that 200-sq-ft office is 10 percent of the home. Your annual indirect home costs (rent, utilities, insurance) total $18,000. The actual-expense method would give you 10 percent of $18,000 = $1,800, before adding any direct office-only costs. In that case actual beats simplified. Run both, then choose.

Records to Keep for Each Method

A simple diagram or note of the office’s square footage and the home’s total square footage.
Evidence the space is used regularly and exclusively (photos help, so does a consistent description year to year).
For the actual method: utility bills, rent or mortgage statements, insurance, repair receipts, and depreciation records.
The math showing your business-use percentage.
Which method you used, kept consistently so it matches what you filed.

Run the Tax Return Documentation Checkup to review your own records before you file.

When Form 8829 Comes In

Form 8829 is the worksheet that supports the actual-expense method for many self-employed filers reporting on Schedule C. It’s where you calculate the business percentage and carry the deduction through. If you use the simplified method, you generally skip 8829 and report the deduction directly. Check the current form instructions for your situation, since the details can vary.

A quick gut check before you file: confirm the space is genuinely exclusive, keep the records that back your method, and don’t switch methods carelessly year to year without understanding the depreciation effects.

Sources

IRS, Home Office Deduction
IRS, About Form 8829

Frequently Asked Questions

Can I switch between the simplified and actual-expense methods from year to year?

Generally yes, you can choose a method each year. But the choice has consequences, especially around depreciation if you own your home, so keep clear records of which method you used and check the current rules before switching.

Does a home office have to be a separate room?

Not strictly, but the area you claim has to be used regularly and exclusively for business. A clearly defined portion of a room can work if nothing else happens in that portion. A shared space that also serves personal use generally does not qualify.

Is the $1,500 simplified cap per business or per home?

The simplified method is limited to 300 square feet of qualified use, which produces the $1,500 maximum. Special rules apply if you have more than one qualified business use or move during the year, so review the current instructions for those cases.

Last reviewed: June 21, 2026.