Is the simplified method better than actual expenses?

It is simpler, but usually smaller. The simplified method caps at $1,500 regardless of your costs. Anyone with meaningful rent or mortgage interest, a larger office, or a homeowner able to claim depreciation typically deducts substantially more under the actual expense method.

Can I switch between the simplified and actual methods?

Yes. You may choose either method year to year, and the choice for one year does not bind future years. What you cannot do is change methods for a year after filing that year via an amended return based solely on the method election.

Can I write off my apartment as a business expense?

Only the portion used regularly and exclusively for business. Renters allocate rent the same way homeowners allocate mortgage interest, so a renter with a qualifying home office deducts the business-use percentage of rent. The whole apartment is never deductible.

Can W-2 employees take the home office deduction?

No. The unreimbursed employee expense deduction was suspended and made permanent, which removed the home office deduction for employees regardless of whether they work from home full time. An employer reimbursement under an accountable plan achieves a similar result tax free.

What does exclusive use actually mean?

The space must be used only for business, with no personal use at all. A dedicated room is easiest, but a clearly defined portion of a room qualifies if nothing personal happens there. A desk in the corner of a bedroom that also serves as a study area does not meet the standard.

Tax Answer

Home Office: Simplified vs Actual

One method is easy and capped at $1,500. The other takes more work and usually pays more. Run both before you choose.

Book a Free Initial Consultation

A guide by Taxstra Tax & Accounting · CPA-led tax strategy for business owners

Your Guide

01Compare Both Methods 02The Qualification Test Comes First 03When Each Method Wins 04Renters, and the Apartment Question 05Frequently Asked Questions

Written by Bryan Martin, CPA, Managing Partner and Founder of Taxstra. Last updated August 15, 2026.

Quick answer

The simplified home office method deducts a flat $5 per square foot of qualifying space, up to 300 square feet, for a maximum of $1,500. The actual expense method deducts the business-use percentage of real home costs including depreciation, and it usually produces a larger deduction.

The simplified method exists because the actual expense calculation used to be genuinely burdensome: allocate every household cost, track depreciation, and carry forward disallowed amounts. The safe harbor replaced all of that with one multiplication.

The trade is size. The simplified method caps out at $1,500 no matter how large your actual costs are, and for most people with a real office and real rent, the actual method wins by a wide margin.

Compare Both Methods

Enter your own numbers and see the gap.

Simplified vs Actual Expense Comparison

Educational estimate. Enter annual figures for the whole home.

Office square footage

Total home square footage

Annual whole-home costs

Rent or mortgage interest

Utilities

Insurance

Repairs

Property tax

Simplified method

$1,000

$5 per square foot

Actual expense method

10.0 percent business use, before depreciation

The actual expense figure excludes depreciation, which is available to homeowners and often swings the comparison further toward this method. Educational estimate only.

Depreciation is the swing factor for homeowners

The comparison above deliberately excludes depreciation, which is only available under the actual expense method. For a homeowner, adding the business-use share of building depreciation frequently moves the actual method well ahead. It also creates a recapture obligation on sale, which is the trade-off to understand before choosing.

The Qualification Test Comes First

Neither method matters if the space does not qualify.

Regular use

Used for business on a continuing basis, not occasionally or incidentally.

Exclusive use

No personal use of the space at all. This is the requirement that disqualifies most claims. A guest room used as an office when nobody is visiting fails.

Principal place of business, or a qualifying alternative

Either your main place of business, a place you regularly meet clients, or a separate structure. Administrative work done at home counts when there is no other fixed location where you do it.

Watch Out

Two exceptions to exclusive use

Space used to store inventory or product samples for a business that sells them, and space used as a licensed daycare facility, are both exempt from the exclusive use requirement. The inventory exception is genuinely useful for resellers, who can count storage space that is also part of a living area.

When Each Method Wins

The choice is annual, so it can change with your circumstances.

	Simplified	Actual expenses
Maximum deduction	$1,500	No cap, limited by business income
Depreciation	Not claimed, and none recaptured later	Claimed, and recaptured on sale
Recordkeeping	Square footage only	All home expenses, allocated
Excess carried forward	No carryover	Disallowed amounts carry forward
Best for	Small offices, low housing costs, simplicity	Larger offices, high rent or mortgage, homeowners

Taxstra CPA Tip

Taxstra Tip

Run both every year rather than choosing once. Someone who moves to a more expensive home, or converts a larger room, can flip from simplified to actual and gain several thousand dollars of deduction with no change in their actual behavior. The election is annual precisely because circumstances change.

Renters, and the Apartment Question

Rent allocates the same way mortgage interest does.

Renters are often better served by the actual expense method than homeowners, because rent is a large, fully allocable cash cost with no depreciation complications and no recapture on the other side.

Worked example: a renter

Annual rent$36,000

Utilities and renters insurance$3,600

Office share, 200 of 1,000 square feet20 percent

Actual expense deduction$7,920

Simplified method would have given$1,000

Illustrative arithmetic only. The gap is why the simplified method rarely suits a renter in an expensive market.

The answer to whether you can write off an apartment as a business expense is therefore partial rather than yes or no: the qualifying business-use percentage, and nothing more. The reporting mechanics, including Form 8829 and the income limitation that can defer part of the deduction, are in the Schedule C home office guide. Property tax allocation interacts with this choice and is covered in the property tax guide. For the broader picture, home-based businesses should work through the online business deduction guide and the 1099 deduction checklist, with the full category map in the business expense guide. Physicians doing administrative work at home should see the physician home office guide.

Home Based Business Outgrowing the Simplified Method?

Once actual expenses and depreciation are on the table, the home office interacts with basis, recapture, and entity structure. Book a free initial consultation with a Taxstra CPA.

Frequently Asked Questions

The simplified method is a safe harbor that lets you deduct a flat $5 per square foot of qualifying home office space, up to 300 square feet, for a maximum of $1,500. It replaces the need to track actual home expenses and allocate them, and it requires no depreciation calculation.

The Home Office Is a Gateway, Not the Destination

It also converts commuting miles into business miles and supports an accountable plan. The structure around it is worth more than the deduction itself. The initial consultation is free.

Next Steps

Filing it yourself is fine. Optimizing it is where the money is.

Getting the form right keeps you out of trouble. The strategies below are what actually lower the bill.

Want a CPA to run the numbers for you?

Free 30-minute call with a Taxstra CPA. No pressure, just the math for your situation.

Book a Free Consultation

Authoritative Sources

Citations reflect U.S. federal tax law as of the article's last reviewed date.

Related Home Office and Business Guides

Schedule C Home Office

Form 8829, the income limitation, and carrying forward a disallowed deduction.

Online Business Deductions

The full deduction map for a business run from home.

Business Expense Categories

Where every category is reported, and what belongs in each.

Physician Home Office

Administrative work at home for practice owners and 1099 physicians.