If you work from home, the IRS allows you to deduct a portion of your housing expenses as a business expense. This is the Home Office Deduction. To qualify, the space must be your principal place of business, and it must be used exclusively and regularly for work. A laptop on the kitchen table doesn't count — a dedicated spare bedroom or a clearly defined corner of the living room does.
Once you qualify, you have to choose how to calculate the deduction: the Simplified Method or the Regular (Actual Expenses) Method. You can choose a different method each year, but you cannot change methods for a specific year once you've filed your return. Choosing the wrong method can cost you hundreds of dollars in missed deductions or hours of unnecessary record-keeping.
Important
The Exclusivity Requirement
The IRS requires that your home office space be used exclusively and regularly for business. A kitchen table where you also eat dinner does not qualify. A dedicated desk in a spare bedroom — even without a door — can qualify if it is used only for work.
The Simplified Method: Fast but Capped
Introduced in 2013, the Simplified Method was designed to reduce the paperwork burden on small business owners. It's exactly what it sounds like: simple.
How it works: You multiply the square footage of your home office by a prescribed rate (currently $5 per square foot). The maximum square footage allowed is 300 square feet.
The Math: If your home office is 150 square feet, your deduction is 150 × $5 = $750. If your office is 400 square feet, your deduction is capped at 300 × $5 = $1,500.
Pros: Minimal record-keeping, easy calculation, and you can still deduct direct business expenses separately.
Cons: Strictly capped at $1,500. You cannot deduct depreciation on your home. If your actual expenses are high, the simplified method will likely result in a smaller deduction.
Simplified Method Formula
Deduction = Office Square Footage × $5 (max 300 sq ft = $1,500 cap)Example: 200 sq ft office × $5 = $1,000 deduction. Simple to calculate, zero receipts needed. But if your actual housing costs are high, you're likely leaving money on the table.
The Regular Method: More Work, Higher Ceiling
The Regular Method (also known as the Actual Expenses Method) requires you to calculate the exact percentage of your home used for business and apply that percentage to your actual housing costs.
How it works: First, determine your business percentage (e.g., a 200 sq ft office in a 2,000 sq ft home = 10%). Then, add up all your indirect housing expenses for the year: rent or mortgage interest, property taxes, utilities, homeowners/renters insurance, and general repairs/maintenance. Multiply the total by your business percentage.
The Math: If your total indirect expenses for the year are $30,000, and your business percentage is 10%, your deduction is $3,000.
Pros: No cap on the deduction amount. Usually results in a significantly larger deduction, especially for renters or homeowners in expensive markets. Allows you to deduct depreciation on the business portion of your home.
Cons: Requires meticulous record-keeping. Calculating depreciation is complex and usually requires tax software or a CPA. When you sell your home, you may have to pay 'depreciation recapture' tax.
Regular Method Formula
Deduction = (Office Sq Ft ÷ Total Home Sq Ft) × Total Annual Housing CostsExample: 200 sq ft ÷ 2,000 sq ft = 10% business use. $30,000 annual housing costs × 10% = $3,000 deduction. Requires saving all housing receipts for the year.
Which Method Should You Choose?
The best method depends on your specific situation. Here is a quick decision framework.
Choose the Simplified Method if: - Your home office is small (under 150 sq ft). - Your housing costs (rent/mortgage, utilities) are relatively low. - You hate record-keeping and want to save time on tax prep. - You own your home and want to avoid the complexities of depreciation recapture when you sell.
Choose the Regular Method if: - Your home office is large (over 300 sq ft). - You live in a high-cost-of-living area with expensive rent or mortgage payments. - You have high utility bills or made significant general repairs to your home this year. - You are willing to track and save all your housing-related receipts.
The Pro Move: Calculate your deduction using both methods every year and claim whichever one gives you the larger tax break. Tax software will usually do this comparison for you automatically.
Simplified vs. Regular Method: Side-by-Side
| Dimension | Simplified Method | Regular Method |
|---|---|---|
| Calculation | Sq ft × $5 (max 300 sq ft) | Business % × actual housing costs |
| Max deduction | $1,500 hard cap | No cap |
| Record-keeping | Minimal — no receipts needed | All housing receipts required |
| Depreciation | Not allowed | Allowed (adds complexity) |
| Best for | Small office, low housing costs | Large office, high-cost area |
| Home sale impact | No depreciation recapture | Potential depreciation recapture |