Who qualifies for the home office deduction?

Self-employed individuals, independent contractors, sole proprietors, and business owners who use part of their home exclusively and regularly as their principal place of business qualify. The space must be used only for business — a desk in a living room where you also watch TV does not qualify. Employees working from home for an employer lost access to this deduction under the 2017 Tax Cuts and Jobs Act through at least 2025.

What is the difference between the simplified and regular home office deduction methods?

The simplified method deducts $5 per square foot of dedicated office space, capped at 300 square feet ($1,500 maximum). The regular method deducts the actual percentage of home expenses attributable to the office space — typically producing a larger deduction but requiring more documentation and carrying more audit scrutiny. You can switch between methods year to year.

Can renters claim the home office deduction?

Yes. Renters claim the same percentage of rent as they do other home expenses under the regular method. If your office space is 10% of your apartment's square footage, you can deduct 10% of your annual rent. Renters often benefit more from the regular method than homeowners because there is no depreciation recapture concern when they eventually move.

Does claiming a home office deduction trigger an IRS audit?

The home office deduction is a legitimate deduction for qualifying self-employed workers and does not automatically trigger audits. Risk increases when the deduction seems disproportionate to business income, the exclusive-use rule is not clearly met, or the regular method produces unusually large figures. Keeping a floor plan showing office dimensions, photographs, and consistent annual claims reduces audit risk significantly.

What happens to the home office deduction when I sell my house?

Under the regular method, the depreciation claimed for the home office portion is subject to depreciation recapture when you sell — taxed at 25% rather than the preferential capital gains rate. The principal residence exclusion does not apply to the portion of gain attributable to business use. This is a meaningful consideration for homeowners in appreciating markets and worth discussing with a CPA before filing.

Home Office Deduction Guide for Self-Employed Workers (2026)

June 5, 2026 · Guide · 6 min read

Self-employed workers can deduct home office costs two ways: the simplified method at $5 per square foot (maximum $1,500) or the regular method based on actual home expenses proportional to office size. The regular method almost always produces a larger deduction — a 200-square-foot office in a 2,000-square-foot home with $30,000 in annual housing costs generates a $3,000 regular-method deduction versus $1,000 under the simplified method. The tradeoff is more documentation, more complexity, and potential depreciation recapture when you eventually sell.

Who Qualifies

The home office deduction is available to self-employed individuals, sole proprietors, single-member LLC owners filing Schedule C, S-corp shareholders who perform services for the business, and partners in a partnership. The two qualifying tests are strict:

Exclusive use: The space must be used only for business. A dedicated home office that doubles as a guest room fails this test. A couch in your home office where you occasionally sit to read fails this test. The IRS interprets exclusive use literally — any personal use of any kind disqualifies the space.
Regular use: The space must be used on a regular, ongoing basis for business — not occasionally or incidentally.

Additionally, the home office must be either your principal place of business (where you conduct administrative and management functions) or a place where you meet clients or customers in the normal course of business. Employees working from home lost this deduction under the 2017 Tax Cuts and Jobs Act's elimination of miscellaneous itemized deductions. Confirm with a CPA whether this provision has changed for your tax year.

The Simplified Method

The IRS simplified method (available since 2013) deducts $5 per square foot of qualifying home office space, up to a maximum of 300 square feet and a maximum deduction of $1,500.

Advantages of the simplified method:

Requires only a measurement of the office space — no tracking of actual home expenses
No depreciation to calculate or recapture when you sell
Can be switched to the regular method in any future year

The simplified method makes sense if your actual home expenses are low (renters in low-cost markets), your office space is small (under 150 square feet), or you want to minimize documentation. For most homeowners with meaningful mortgage interest, property taxes, and utilities, the regular method produces a substantially larger deduction.

The Regular Method

The regular method calculates a business-use percentage based on the ratio of office square footage to total home square footage, then applies that percentage to actual home expenses.

Business-use percentage formula:
Office square footage divided by total home square footage equals business-use percentage

Example: 200 sq ft office divided by 2,000 sq ft home equals 10% business use

Deductible expenses under the regular method:

Mortgage interest (business-use percentage of Form 1098 interest paid)
Rent (for renters)
Real estate taxes (business-use percentage)
Homeowner's or renter's insurance (business-use percentage)
Utilities: electricity, gas, water (business-use percentage)
Home maintenance and repairs (direct repairs to the office: 100%; whole-home repairs: business-use percentage)
Depreciation of the home (business-use percentage applied to the home's depreciable basis, over 39 years)

At 10% business use on a home with $25,000 in annual mortgage interest, taxes, and utilities, the regular method generates a $2,500 deduction before repairs and depreciation. The simplified method on a 200 sq ft office produces only $1,000. The larger the home expenses and the smaller the office-to-home ratio, the more the regular method outperforms.

Direct vs. Indirect Expenses

Expenses that benefit only the home office — repainting the office walls, replacing the office window, adding a dedicated electrical circuit — are direct expenses and are 100% deductible, not subject to the business-use percentage. Expenses that benefit the whole home — a new roof, HVAC replacement, landscaping — are indirect and deductible only at the business-use percentage. Misclassifying these is one of the most common errors CPA reviewers find on Schedule C filings.

Depreciation Under the Regular Method

The regular method requires depreciating the business-use portion of your home's structure. The depreciation calculation:

Determine your home's adjusted basis (purchase price plus improvements, minus land value)
Multiply by the business-use percentage
Divide by 39 (residential property used for business depreciates over 39 years)

Example: $400,000 home basis (net of land) × 10% business use = $40,000 depreciable basis ÷ 39 years = $1,026 per year additional deduction

This adds meaningful value annually but creates a depreciation recapture liability at sale. The accumulated depreciation is taxed at a maximum 25% rate, and the principal residence exclusion does not shelter the gain attributable to business use. This is a significant consideration for homeowners in appreciating markets.

The Deduction Limitation Rule

The home office deduction cannot exceed your business's net income. If your Schedule C shows $8,000 in net profit and your home office calculation produces $10,000, the deduction is capped at $8,000. Under the regular method, the remaining $2,000 can be carried forward to future tax years. Under the simplified method, the excess is lost permanently. Plan accordingly in low-revenue years.

What Is Always 100% Deductible (Not Part of the Home Office Calculation)

Office furniture and equipment (deducted via Section 179 or bonus depreciation, not through the home office calculation)
A dedicated business phone line
The business-use portion of internet service (typically 50–80% if also used personally)
Office supplies

These are claimed elsewhere on Schedule C regardless of which home office method you use.

Documentation Checklist

Keep these records year-round to support a home office deduction:

Floor plan or diagram showing the office's dimensions and its position within the home
Photographs of the dedicated space
Annual utility bills, mortgage statements, and insurance documents
Receipts for any direct office repairs or improvements
Consistent claims year over year — claiming 200 sq ft in prior years and suddenly claiming 350 sq ft invites scrutiny

The home office deduction benefits from year-round tracking rather than year-end reconstruction. Our self-employed tax planning guide covers the full deduction picture for independent workers, and our overlooked small business deductions guide covers several home-related deductions that are frequently missed alongside the home office calculation.

Simplified Method vs. Regular Method: Which Should You Use?

Use simplified if: your office is under 150 sq ft, you rent a low-cost apartment, or documentation burden is your primary concern. Use regular if: you own your home, have meaningful mortgage interest and property taxes, or your office is large relative to your home. Run the calculation both ways every year — the method producing the larger deduction is almost always the right choice, unless the depreciation recapture exposure at future sale changes the math.

The regular method with depreciation calculations is where errors compound. An incorrect home basis, a misclassified direct vs. indirect expense, or a depreciation recapture miscalculation in a future sale can cost more to fix than the deduction saved. Our guide on when to hire a CPA vs. use tax software outlines the crossover point — the home office deduction under the regular method is a clear case where professional review pays for itself. To find a CPA who specializes in self-employed filers in your area, browse our directory by city or search for CPAs near you with Schedule C experience.

Frequently Asked Questions

Who qualifies for the home office deduction?: Self-employed individuals, independent contractors, sole proprietors, and business owners who use part of their home exclusively and regularly as their principal place of business qualify. The space must be used only for business — a desk in a living room where you also watch TV does not qualify. Employees working from home for an employer lost access to this deduction under the 2017 Tax Cuts and Jobs Act through at least 2025.
What is the difference between the simplified and regular home office deduction methods?: The simplified method deducts $5 per square foot of dedicated office space, capped at 300 square feet ($1,500 maximum). The regular method deducts the actual percentage of home expenses attributable to the office space — typically producing a larger deduction but requiring more documentation and carrying more audit scrutiny. You can switch between methods year to year.
Can renters claim the home office deduction?: Yes. Renters claim the same percentage of rent as they do other home expenses under the regular method. If your office space is 10% of your apartment's square footage, you can deduct 10% of your annual rent. Renters often benefit more from the regular method than homeowners because there is no depreciation recapture concern when they eventually move.
Does claiming a home office deduction trigger an IRS audit?: The home office deduction is a legitimate deduction for qualifying self-employed workers and does not automatically trigger audits. Risk increases when the deduction seems disproportionate to business income, the exclusive-use rule is not clearly met, or the regular method produces unusually large figures. Keeping a floor plan showing office dimensions, photographs, and consistent annual claims reduces audit risk significantly.
What happens to the home office deduction when I sell my house?: Under the regular method, the depreciation claimed for the home office portion is subject to depreciation recapture when you sell — taxed at 25% rather than the preferential capital gains rate. The principal residence exclusion does not apply to the portion of gain attributable to business use. This is a meaningful consideration for homeowners in appreciating markets and worth discussing with a CPA before filing.