The Home Office Deduction: Simplified vs. Regular Method

The home office deduction is one of the most valuable and most misunderstood write-offs for self-employed people. It is also one many freelancers skip out of fear of an audit, leaving money on the table. Here is how it actually works.

Who qualifies

Two tests matter: the space must be used regularly and exclusively for business, and it must be your principal place of business. Exclusive use is the strict part, a desk in the corner of a room you also use personally does not count, but a dedicated room or clearly defined area does. Note that employees with W-2 jobs generally cannot take this deduction; it is for the self-employed.

The simplified method

The IRS offers a flat-rate option: a set dollar amount per square foot of office space, up to a 300 square foot cap. It requires no receipts and almost no record-keeping, just the square footage. It is quick and audit-friendly, but it caps your deduction.

The regular method

Here you deduct the actual percentage of your home expenses that corresponds to your office. Measure your office as a percentage of your home's total square footage, then apply that percentage to rent or mortgage interest, utilities, insurance, repairs, and depreciation. More paperwork, but often a bigger deduction, especially in a high-cost home.

Which to choose

Run both. If your office is small or your home expenses modest, the simplified method may win and saves hassle. If you have a larger dedicated space and meaningful home costs, the regular method usually produces a larger deduction. You can switch methods year to year.

Don't fear it

The deduction is legitimate and common; taking it correctly does not flag you for an audit. Keep simple records, a floor plan or measurement and your expense totals, and you are well positioned to support the claim.

Compare both methods with your numbers using our home office deduction calculator.