Compare the simplified and regular methods side by side for 2026, then see the real tax the deduction saves you — income tax and self-employment tax, the part most tools leave out. Built for the self-employed and 1099 filers who actually qualify.
Built & maintained by Marcus, freelancer·Figures from IRS (Pub 587 & Topic 509)·Last updated July 2026
Who qualifies in 2026: only the self-employed, independent contractors and business owners can claim a home office. The W-2 employee home office deduction was suspended by the 2017 tax law and made permanent under the One Big Beautiful Bill Act — employees still can't deduct it. The simplified rate stays $5 per square foot, up to 300 sq ft ($1,500 max).
$5
Per sq ft — simplified method
300
Sq ft cap on the simplified method
$1,500
Max simplified deduction
2
Taxes it lowers: income + SE
sq ft
sq ft
Your actual annual home costs (for the regular method)
$/ yr
$/ yr
$/ yr
$/ yr
$/ yr
$/ yr
Simplified method
Deduction
$750
$5 × 150 sq ft
Rate$5 / sq ft
Space counted150 sq ft
Records neededNone
Regular method
Deduction
$2,430
10.0% business use of home
Business use of home10.0%
Indirect costs × business %$2,430
Direct office costs (100%)$0
$/ yr
%
Include self-employment tax saving the deduction lowers Schedule C profit, so SE tax falls too
I take the 20% QBI deduction if so, a smaller profit also shrinks QBI — we reduce the income-tax saving to match
Estimated tax saved by this deduction
Self-employment tax saved15.3% on 92.35% of the deduction (14.1%)$343
Federal income tax saved22% bracket$397
State income tax saved0%$0
Total tax saved$740
The self-employment saving assumes your net profit is below the $184,500 Social Security wage base. Above it, only the 2.9% Medicare portion applies to the deduction, so the SE saving is smaller. Income-tax savings use your marginal bracket; your true rate may span two brackets.
Uses the office and home size from the Compare Methods tab. The regular method only beats the flat simplified deduction once your home costs are high enough for your office share.
Total annual home costs
Regular deduction
Simplified
Winner
Depreciation recapture: if you own your home and depreciate it under the regular method, you'll pay tax (up to 25%) on that depreciation when you sell — even if your home-sale gain is otherwise excluded. The simplified method skips depreciation entirely, so there's nothing to recapture.
Carryover: if your business income is too low to use the full deduction, the regular method lets you carry the blocked amount to next year. The simplified method has no carryover — anything over the income limit is lost.
Simplicity: the simplified method needs only your square footage — no receipts, no Form 8829 depreciation schedule. If the regular method wins by only a little, the simpler method is often worth the small difference.
How the home office deduction works in 2026
The home office deduction lets you write off the part of your home you use for business. To qualify, the space has to be used exclusively and regularly for your business, and it generally has to be your principal place of business — where you do your main work or meet clients. A spare room that doubles as a guest room usually fails the "exclusive" test; a dedicated desk area in a room can still qualify if that portion is used only for work.
Only the self-employed qualify — sole proprietors, single-member LLCs, independent contractors and 1099 freelancers who file Schedule C. If you're a W-2 employee, you can't take it, even if you work from home full time; the 2017 Tax Cuts and Jobs Act suspended the employee version and the One Big Beautiful Bill Act made that permanent. This home office tax deduction calculator is built around the self-employed rules for that reason.
There are two ways to calculate it, and you can choose whichever is bigger each year. The simplified method is a flat $5 per square foot of office space, capped at 300 square feet — a maximum of $1,500 — with no receipts. The regular method deducts your business-use percentage of your actual home costs, computed on Form 8829, and has no dollar cap. The deduction lands on your Schedule C, which is why it lowers two taxes at once.
Simplified vs regular method — which saves more?
The simplified home office deduction is the easy one: multiply your office square footage (up to 300) by $5. A 200 sq ft office is a $1,000 deduction; anything 300 sq ft or larger maxes out at $1,500. You keep no receipts and file no depreciation. The trade-off is the ceiling — if your rent or mortgage is high, you're likely leaving money on the table.
The regular method takes your business-use percentage — office square footage divided by total home square footage — and applies it to your indirect home costs: rent or mortgage interest, property tax, utilities, insurance, general repairs and, for homeowners, depreciation. Costs that only benefit the office (painting that room, a dedicated business phone line) are direct and fully deductible. Because it scales with your real bills, the regular method usually wins for renters in expensive cities and anyone whose office is a large share of their home.
The honest rule: run both and take the larger number — which is exactly what the Compare Methods tab does. The regular method wins on dollars more often than people expect, but it costs you record-keeping and, if you depreciate, a future recapture bill when you sell. The When Regular Wins tab shows the exact annual home-cost threshold where the regular method overtakes the simplified one for your office size.
How much tax does it actually save?
A deduction isn't money back — it's money that never gets taxed. So the real question is what tax rate applies. Most home office calculators stop at the deduction amount and never tell you the dollars. For a freelancer, the deduction is worth more than the headline income-tax rate suggests, because it sits on Schedule C and lowers your net profit — which drives both your income tax and your self-employment tax.
Self-employment tax is 15.3% on 92.35% of your net profit, an effective 14.1% per dollar. Income tax is your marginal bracket — 22% for most freelancers earning $50k–$106k in 2026. Stack them and a $2,000 deduction can be worth roughly $280 in SE tax plus about $330 in income tax — around $600 back, versus the ~$440 you'd guess from the income bracket alone.
Two honest caveats the calculator builds in. Reducing your profit also shrinks your deductible half of SE tax, so the income-tax saving is a touch below your straight bracket rate. And if you claim the 20% QBI deduction, a smaller profit means a smaller QBI deduction too — clawing back about a fifth of the income-tax saving. The Tax Savings tab lets you toggle both so the total isn't overstated.
Frequently Asked Questions
What is the home office deduction for 2026?
It's a deduction for the part of your home you use exclusively and regularly for business. For 2026 you can use the simplified method — $5 per square foot, up to 300 square feet, so a maximum of $1,500 — or the regular method, which deducts the business-use percentage of your actual home costs (rent or mortgage interest, utilities, insurance, repairs and depreciation). You pick whichever gives the bigger number each year. Only self-employed people, independent contractors and business owners qualify; W-2 employees can't claim it, and that exclusion is now permanent under the One Big Beautiful Bill Act.
Simplified or regular method — which one saves more?
Whichever produces the larger deduction. The simplified method is $5 times your office square footage (capped at 300 sq ft / $1,500) with no receipts. The regular method is your business-use percentage times your actual annual home costs, so it usually wins when your rent or mortgage and utilities are high, or your office is a large share of the home. The Compare Methods tab shows both figures side by side and highlights the winner; the When Regular Wins tab shows the exact annual home cost at which the regular method overtakes the simplified one for your office size.
Does the home office deduction lower self-employment tax too?
Yes — that's what most calculators miss. The deduction is a business expense on Schedule C, so it lowers your net profit. A lower net profit means less self-employment tax (15.3% on 92.35% of profit, an effective 14.1% per dollar deducted) and less federal and state income tax. A $2,000 deduction for someone in the 22% bracket is worth roughly $280 in SE tax plus about $330 in income tax — around $600 back, not just a number on a form. The Tax Savings tab splits out each part.
How do I calculate my business-use percentage?
Divide the square footage of the space you use exclusively for business by your home's total finished square footage. A 150 sq ft office in a 1,500 sq ft home is 10%. Under the regular method you apply that percentage to your indirect home costs — rent or mortgage interest, property tax, utilities, insurance, repairs and depreciation. Expenses that only benefit the office (like painting just that room) are direct and 100% deductible. The IRS also allows a rooms-based percentage if your rooms are roughly equal in size.
Can I switch between the simplified and regular method each year?
Yes. You choose a method on your timely filed return for that tax year and can't change it for that same year, but you can switch the next year. A common approach is to run both each year and take whichever is larger. One catch: if you claimed depreciation under the regular method in a prior year and then use simplified, you can't deduct the disallowed amount, and any carryover of expenses limited by income from a regular-method year can't be used in a simplified-method year.
What are the downsides of the regular method?
More paperwork and one real tax cost. You have to track and keep receipts for every home expense and file Form 8829. If you own your home and deduct depreciation, you'll owe depreciation recapture — taxed as ordinary income up to 25% — on that depreciation when you sell, even though your main-home gain may otherwise be excluded. The simplified method avoids both: no records beyond your square footage, and no depreciation to recapture. For many renters the regular method still wins by enough to be worth it; for homeowners near a sale, the simplified method can be the smarter call.
Is my home office deduction limited by my business income?
Yes. The deduction can't exceed the gross income from your business use of the home minus your other business expenses — you can't use it to create or deepen a loss. Under the regular method, any amount blocked by that limit carries forward to future years. Under the simplified method there's no carryover: an amount over the limit is simply lost. If your business ran at a loss this year, factor that in before choosing a method.
Sources & how we calculate
The simplified deduction is $5 × your office square footage, capped at 300 sq ft ($1,500). The regular deduction is your business-use percentage (office ÷ home square feet) applied to indirect home costs, plus any direct office-only costs at 100%. For the tax saving we treat the deduction as a Schedule C business expense: self-employment tax falls by 15.3% × 92.35% (about 14.1%) of the deduction, and federal income tax falls by your marginal bracket applied to the reduced profit — trimmed slightly because a lower profit also lowers your deductible half of SE tax, and again if you claim the 20% QBI deduction. State income tax uses the rate you enter. Everything runs in your browser from the figures you type; nothing is sent anywhere.
Estimate only, not tax advice. Your real saving depends on your bracket, state, other income, the gross-income limit and whether you own or rent. Keep your records and talk to a CPA or EA before filing Form 8829.
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