Tax Benefits and Obligations of Home-Based Businesses
Home-based businesses qualify for real tax deductions — home office, utilities, repairs, and more. Learn what the IRS allows, how to calculate your deduction, and what you owe as a self-employed business owner.
Bizee Editorial Staff
Editorial Team
Introduction
Running a business from home comes with real tax advantages — and real obligations. The IRS allows home-based business owners to deduct a portion of home expenses, but only when specific rules are met. This guide covers what qualifies, how to calculate your deduction, and what you owe as a self-employed business owner.
Which home spaces qualify for a deduction
A home space qualifies for a business deduction when it's used regularly and exclusively for business — not occasionally, and not for personal use too. The IRS outlines the qualifying uses in IRS Topic No. 509 and Publication 587. Most home-based business owners qualify through the home office rule, but there are several other qualifying uses.
The exclusive-use rule is the one that catches people off guard. A spare bedroom where you also store personal items or let guests sleep does not qualify — even if you work there most days. The space has to be dedicated to business, full stop.
- Your principal place of business — where you handle most administrative or management tasks, even if you also work at other locations
- A space used regularly to meet with clients, customers, or patients — if those meetings are a substantial part of how you run your business
- A storage area for inventory or product samples — this space can be used for personal purposes too, as long as it's the only fixed location for your business
- A dedicated daycare facility — deductible even if the space serves personal purposes outside daycare hours
- A detached structure like a garage or studio — qualifies if used exclusively and regularly for business, even if not your principal place of business
What home office expenses are deductible
Home office deductions cover a percentage of shared home expenses — the portion that corresponds to your business-use area. Direct expenses that apply only to the business space are fully deductible. Shared expenses are deductible only in proportion to the business-use percentage of your home.
Shared expenses you can deduct in proportion to business use include mortgage interest, real estate taxes, rent, utilities, homeowner's insurance, and general repairs. A repair that affects only the business area — say, repainting your home office — is a direct expense and fully deductible. A repair to the whole house, like fixing the roof, is indirect and deductible only at your business-use percentage.
Capital improvements — additions, major renovations — work differently. You can't deduct them in the year you pay for them. Instead, they're depreciated over the property's useful life, with the business-use percentage applied to the depreciation amount.
Beyond home-related costs, home-based business owners can also deduct other ordinary and necessary business expenses: employee wages, business insurance, professional fees, business travel, and bad debts, among others. These deductions aren't unique to home businesses — they apply to any self-employed business owner filing on Schedule C.
How to calculate your home office deduction
The IRS offers 2 methods for calculating the home office deduction: the regular method and the simplified method. You choose one each year — you're not locked in permanently.
Regular method (actual expenses)
Divide the square footage of your business area by the total square footage of your home. That percentage is applied to your indirect home expenses to get the deductible amount. If your home office is 200 square feet and your home is 2,000 square feet, your business-use percentage is 10% — so 10% of your rent, utilities, and insurance is deductible. This method takes more recordkeeping but often produces a larger deduction.
Simplified method
Multiply the square footage of your business area by $5, up to a maximum of 300 square feet. The maximum deduction under this method is $1,500. No depreciation calculation is required, and you don't need to track actual home expenses. It's a straightforward option if your home office is small or your recordkeeping is limited.
Self-employment tax and income reporting obligations
Home-based business owners who are self-employed — sole proprietors and single-member LLC owners — report business income and expenses on Schedule C (Form 1040). Net profit from Schedule C flows to Form 1040 and is added to your total taxable income.
On top of income tax, self-employed business owners owe self-employment tax — 15.3% on net earnings. That covers Social Security (12.4%, up to the annual wage base) and Medicare (2.9%, with no cap). You calculate it on Schedule SE. The good news: you can deduct half of the self-employment tax you pay as an above-the-line adjustment on your Form 1040.
Because no employer withholds taxes for you, you're responsible for paying estimated taxes quarterly. If you expect to owe $1,000 or more in federal taxes for the year, the IRS expects quarterly payments — typically due in April, June, September, and January. Missing those payments can mean an underpayment penalty at the end of the year.
Good recordkeeping makes all of this manageable. Keep receipts, track your home's square footage, and document business use throughout the year — not just at tax time. A tax professional can help you figure out which deductions apply to your situation and whether the regular or simplified method works better for you.
FAQ
IRS Topic No. 509 covers the business use of your home. It explains which spaces qualify for a home office deduction, the exclusive and regular use requirements, and how to calculate the deductible portion of home expenses. It's the IRS's primary summary of the rules in Publication 587.
It means the space must be used only for business — not occasionally, and not shared with personal activities. "Regular" means you use it consistently as part of running your business, not just once in a while. A room where you also watch TV or store personal items does not meet the exclusive-use test, even if you work there often.
Home-based business owners who are self-employed owe federal income tax on net business profit and self-employment tax of 15.3% on net earnings. Self-employment tax covers Social Security and Medicare. Both are calculated and reported using Schedule C and Schedule SE on Form 1040. Quarterly estimated tax payments are also required if you expect to owe $1,000 or more for the year.
It depends on your home office size and how much you spend on home expenses. The simplified method gives you $5 per square foot up to 300 square feet — a maximum of $1,500 with no depreciation tracking required. The regular method uses your actual expenses and business-use percentage, which often produces a larger deduction but requires more recordkeeping. A tax professional can help you figure out which produces the better result for your situation.
Generally, no. The Tax Cuts and Jobs Act of 2017 suspended the deduction for unreimbursed employee business expenses through 2025. Employees working remotely cannot deduct home office expenses on their federal return. The home office deduction is available only to self-employed individuals — sole proprietors, independent contractors, and single-member LLC owners who file on Schedule C.
IRS Publication 587 is the IRS's full guide to the business use of your home. It covers qualifying spaces, the exclusive and regular use tests, how to calculate deductions using both the regular and simplified methods, depreciation rules for capital improvements, and how to report home office expenses on Schedule C. You'll want to reference it when preparing your taxes or deciding which deduction method to use.
