Home Office Tax Deductions: What You Can Claim

Who Qualifies for the Home Office Deduction

The IRS has two requirements for the home office deduction. First, you must use a specific area of your home exclusively and regularly as your principal place of business. "Exclusively" means the space is used only for business, not as a guest bedroom, play area, or general living space during non-work hours. "Regularly" means you use the space for business on a consistent basis, not just occasionally. Second, the home office must be your principal place of business, meaning you conduct your most important business activities there or you use it regularly for administrative or management tasks and have no other fixed location for those functions.

Self-employed individuals, sole proprietors, and independent contractors who meet these requirements qualify for the deduction on Schedule C of their federal tax return. This includes freelancers, consultants, online business owners, and anyone filing as a sole proprietorship or single-member LLC.

W-2 employees working from home cannot claim the home office deduction on their federal taxes under the Tax Cuts and Jobs Act of 2017, which suspended the employee home office deduction through at least 2025. However, several states (including California, New York, Minnesota, and others) still allow employees to deduct unreimbursed home office expenses on state returns. Check your state's tax rules or consult a tax professional if you are a W-2 remote employee.

S-Corporation and partnership owners can deduct home office expenses, but the deduction works differently. The business typically reimburses the owner under an accountable plan, and the reimbursement is a deductible business expense for the company. Consult a CPA for the specifics of your business structure.

The Simplified Method

The simplified method allows a deduction of $5 per square foot of your home office, up to a maximum of 300 square feet, for a maximum deduction of $1,500 per year. You do not need to track individual expenses or calculate the business-use percentage of your home. Simply measure your office space, multiply by $5, and claim the deduction.

The simplified method is best for people with smaller home offices, lower housing costs, or who want to minimize record-keeping. If your home office is 150 square feet, the simplified deduction is $750. If your home office is 200 square feet or more, you hit the $1,000+ range. The $1,500 cap limits this method's value for people with larger offices or higher housing costs, but for many home-based workers, the simplicity is worth the smaller deduction.

The Regular Method

The regular method calculates your deduction based on the actual expenses associated with your home, proportional to the percentage used for business. This method typically produces a larger deduction than the simplified method, especially if your housing costs are high or your office takes up a significant percentage of your home.

To calculate the business-use percentage, divide the square footage of your office by the total square footage of your home. If your office is 200 square feet and your home is 1,500 square feet, your business-use percentage is 13.3%. You then deduct 13.3% of each qualifying expense.

Expenses You Can Deduct (Regular Method)

Direct expenses are costs that benefit only the home office space, and you deduct them at 100%. Examples include painting the office, installing shelving in the office, or repairing the office ceiling. Direct expenses are uncommon for most home offices.

Indirect expenses are costs that benefit the entire home, deducted at your business-use percentage. These include:

• Rent (if you rent): deduct the business-use percentage of your monthly rent. A $2,000/month rent with a 15% business-use percentage yields a $3,600 annual deduction.
• Mortgage interest (if you own): deduct the business-use percentage of your mortgage interest payments. This is the interest only, not the principal portion of your mortgage payment.
• Property taxes: deduct the business-use percentage of your annual property taxes.
• Homeowners or renters insurance: deduct the business-use percentage of your annual premium.
• Utilities: electricity, gas, water, trash, and sewer, all deducted at the business-use percentage.
• Internet service: deduct the business-use percentage of your monthly internet bill. If you use internet exclusively for business, you could deduct a higher percentage, but most people use home internet for both personal and business purposes.
• Home repairs and maintenance: painting the exterior, fixing the roof, or replacing the furnace are deductible at the business-use percentage because they benefit the entire home including the office.
• Depreciation (if you own): homeowners can depreciate the business-use portion of their home's cost basis over 39 years. This is a significant deduction but has implications if you sell the home (depreciation recapture), so consult a CPA before claiming it.

Additional Business Deductions for Home Workers

Beyond the home office deduction itself, self-employed individuals working from home can deduct additional business expenses that reduce taxable income:

• Office equipment and furniture: desks, chairs, monitors, printers, and other equipment used for business. Items costing under $2,500 can be expensed immediately under the de minimis safe harbor. Larger purchases can be deducted using Section 179 (immediate expensing up to $1,220,000 for 2026) or depreciated over their useful life.
• Computer and software: your work computer, software subscriptions (Microsoft 365, Adobe Creative Suite, accounting software), and cloud services are fully deductible if used exclusively for business, or deducted at the business-use percentage if used for both personal and business.
• Phone and cell phone: the business-use percentage of your cell phone bill is deductible. If you have a separate business phone line, it is 100% deductible.
• Health insurance premiums: self-employed individuals can deduct 100% of health insurance premiums for themselves, their spouse, and dependents on their personal tax return (not on Schedule C, on the front page of Form 1040).
• Retirement contributions: SEP-IRA contributions (up to 25% of net self-employment income, maximum $69,000 for 2026), SIMPLE IRA, or solo 401(k) contributions are deductible and reduce your taxable income significantly.
• Self-employment tax deduction: you can deduct the employer-equivalent portion of your self-employment tax (7.65% of net self-employment income) as an adjustment to income on your 1040.

Record-Keeping Requirements

The IRS does not require you to submit documentation with your tax return, but you must keep records that support your deduction in case of an audit. For the regular method, keep: records of your home office square footage and total home square footage (a floor plan measurement is sufficient), copies of all housing expense receipts and bills (rent receipts, mortgage statements, utility bills, insurance premiums, repair invoices), and records of any direct expenses to the office space. For both methods, keep receipts for all business equipment and supply purchases. Store records for at least three years from the date you file the return, or seven years if you are uncertain about any deduction.

Digital record-keeping is perfectly acceptable. Take photos of receipts, save PDFs of online bills, and use accounting software like QuickBooks, Wave, or FreshBooks to categorize and store expenses automatically. The ecommerce accounting guide covers bookkeeping practices that make tax time straightforward.

Common Mistakes to Avoid

Using the office for personal activities disqualifies the space from the exclusive-use requirement. If your home office doubles as a guest bedroom or you use the desk for personal projects, you do not qualify. The exception is if you use a separately identifiable portion of the room exclusively for business, though this is harder to prove in an audit.

Claiming the deduction as a W-2 employee on your federal return is a common error because many people do not know about the suspension through the Tax Cuts and Jobs Act. This will trigger an IRS notice and adjustment.

Deducting personal expenses as business expenses (claiming 100% of your internet bill when you also stream Netflix, or deducting your full phone bill when you use the phone for personal calls) is a red flag. Be honest about the business-use percentage and keep documentation that supports your allocation.

Forgetting estimated quarterly payments is expensive. Self-employed individuals who expect to owe $1,000 or more in taxes must make quarterly estimated payments (due April 15, June 15, September 15, and January 15). Failure to make estimated payments results in a penalty of approximately 8% of the underpayment (the IRS interest rate, which adjusts quarterly). Use IRS Form 1040-ES to calculate and schedule payments.