LLC Home Office Deduction Guide — Simplified vs. Regular Method (2026)

Before you start

What to know first

The home office deduction (IRC §280A) requires that a portion of your home be used regularly and exclusively for business. 'Exclusively' means the space is used only for business — a desk in a bedroom that doubles as a guest room does not qualify. 'Regularly' means you use the space in the ordinary course of business, not just occasionally.
There are two IRS-approved calculation methods: (1) Simplified method — $5 per square foot of dedicated office space, capped at 300 sq ft, yielding a maximum annual deduction of $1,500. No depreciation recapture on home sale. (2) Regular method — deduct the actual business-use percentage of home expenses (mortgage interest, rent, utilities, insurance, repairs, depreciation). Business-use % = office sq ft ÷ total home sq ft. Produces a larger deduction for high-cost homes but requires detailed recordkeeping and triggers depreciation recapture when you sell.
For a single-member LLC taxed as a disregarded entity, the home office deduction is reported on IRS Form 8829 (Expenses for Business Use of Your Home), which flows into Schedule C. The deduction cannot exceed the gross income from the business — it cannot create or increase a net loss from the business activity.
For a multi-member LLC taxed as a partnership (Form 1065), the partnership does not own the home — individual members do. The LLC cannot claim the home office deduction directly. Each member who uses a home office for the LLC's business may deduct home-office expenses via Form 2106 (Employee Business Expenses) as an unreimbursed partner expense, reported on Schedule E. This is significantly less tax-advantaged than the Schedule C path for disregarded LLCs.
A multi-member LLC can adopt an Accountable Plan to reimburse members for home-office expenses. Reimbursements under an accountable plan are deductible by the LLC and excluded from the member's income — the most tax-efficient structure for multi-member LLCs with home offices.
S-Corp-elected LLCs: the LLC can reimburse the owner-employee for home-office expenses under an accountable plan (IRC §62(a)(2)(A)). The reimbursement is deductible by the S-Corp and excluded from the owner's W-2 income. S-Corp owners cannot take the home office deduction on Schedule C because they are employees of their own corporation.
The home office deduction is one of the most-audited Schedule C items. The IRS specifically looks for: (1) a space claimed that is not exclusively business-use; (2) home office square footage that seems implausibly large relative to reported income; (3) repeated losses from the home-office deduction combined with other factors that suggest the activity is a hobby.

Documents

What you'll need

Home square footage — total finished square footage of your home (from property records, appraisal, or physical measurement)
Office square footage — physical measurement of the room or dedicated area used exclusively for business (length × width in feet)
Lease or mortgage statement — needed for the regular method to document rent paid or mortgage interest eligible for deduction
Utility bills — annual electricity, gas, water, and internet bills needed for the regular method; internet alone is deductible as a direct business expense regardless of home office
Homeowner's or renter's insurance — annual premium needed for regular method calculation
Home repair receipts — if any repairs were made to the home office space specifically (e.g., repainting the office, replacing office carpet), these may be 100% deductible as direct expenses rather than prorated
Prior year Form 8829 — needed if using the regular method to track depreciation carryforward and calculate cumulative depreciation for recapture on sale
Photos of home office — not required by IRS but strongly recommended as audit documentation proving exclusive business use

Process

Step by step

Verify your space meets the exclusivity and regular-use tests Before calculating any deduction, confirm: (1) Exclusive use — the space is used only for business. A dedicated room with a door is the safest structure. A sectioned-off area of a room can qualify if it is clearly delineated and not used for personal activities. A couch-office that doubles as a TV room does not qualify. (2) Regular use — you work there routinely as part of your normal business operations, not just occasionally. (3) Principal place of business — the home office must be your primary place of business, or used regularly for meeting clients/customers in person. LLC owners who rent a separate office cannot also deduct a home office unless the home office is a distinct place of business (e.g., used for administrative work while the rented space is used for client meetings).
Measure and calculate your business-use percentage Measure the dedicated office space in square feet (length × width). Measure the total finished square footage of your home. Business-use percentage = office sq ft ÷ total home sq ft. Example: 150 sq ft office in a 1,500 sq ft home = 10% business-use percentage. This percentage is used for the regular method only. For the simplified method, you do not need the percentage — you simply multiply the office square footage by $5 (capped at 300 sq ft and $1,500).
Choose your calculation method: simplified vs. regular Simplified method: multiply office sq ft (max 300) × $5 = deduction (max $1,500). Advantages: no depreciation tracking, no recapture risk on home sale, minimal recordkeeping. Use for renters or homeowners with modest home expenses. Regular method: multiply your business-use percentage by total home expenses (rent or mortgage interest + property taxes + utilities + insurance + repairs + depreciation). Advantages: typically produces a larger deduction for high-cost homes. Disadvantages: requires Form 8829, depreciation tracking each year, and depreciation recapture tax when you sell the home (even if you later switch to simplified method). Rule of thumb: if your deductible home expenses × business-use % exceed $1,500, the regular method likely produces a larger deduction; run both calculations in TurboTax or have your CPA compare. You may switch between methods year to year.
Complete Form 8829 (regular method) or record the simplified deduction Simplified method: enter the deduction directly on Schedule C, line 30. No Form 8829 required. Regular method: complete Form 8829, Expenses for Business Use of Your Home. Part I calculates the business-use percentage. Part II calculates deductible expenses by category (direct expenses — 100% deductible; indirect expenses — multiplied by business-use %). Part III calculates depreciation on the home. The Form 8829 deduction flows to Schedule C, line 30. Note: the home-office deduction under the regular method cannot exceed gross income from Schedule C (it cannot create a loss). If the calculated deduction exceeds income, the excess carries forward to the following year.
Multi-member LLC and S-Corp accountable plan reimbursement If you operate through a multi-member LLC (Form 1065) or S-Corp-elected LLC, the home office deduction via Schedule C is not available to you. The optimal structure is an accountable plan: (1) Adopt a written accountable plan in your LLC's operating agreement or as a standalone board resolution. (2) Calculate monthly home-office reimbursement using either the simplified or regular method. (3) Submit monthly reimbursement requests to the LLC with supporting documentation (utility bills, rent/mortgage statement, square footage calculation). (4) LLC pays the reimbursement — deductible by the LLC as an ordinary business expense (Schedule K or Form 1120-S, line 19). (5) The reimbursement is excluded from your personal W-2 or K-1 income. This gives the economic equivalent of the home office deduction without the personal-return complexity.
Document for audit and file Maintain an audit file including: your office measurements and calculation worksheets; photos of the dedicated workspace; lease/mortgage documents (regular method); utility bills; your completed Form 8829 or simplified-method calculation. Keep these records for at least 3 years from the filing date (longer if the regular method's depreciation affects your home sale basis — keep until you sell the home plus 3 years). The IRS audit window is generally 3 years from filing, but there is no statute of limitations for fraudulent returns.

Costs

What it costs

Item	Amount	Notes
IRS Form 8829 — Expenses for Business Use of Your Home	$0 filing fee	No IRS filing fee to claim the deduction. Form 8829 is included with TurboTax Self-Employed and H&R Block Self-Employed at no additional cost. Affiliate: utm_source=biz-license&utm_medium=guide&utm_campaign=home-office-turbo
TurboTax Self-Employed — recommended for SMLLC home-office filers	~$130 federal + $50 state	Walks through simplified vs. regular method comparison and calculates Form 8829 automatically. Affiliate: utm_source=biz-license&utm_medium=guide&utm_campaign=home-office-turbo
CPA consultation — regular method calculation and depreciation tracking	$150–$350 one-time (first year); included in annual return preparation thereafter	If using the regular method, a CPA should calculate the depreciation basis for your home in year one. This is required to accurately compute depreciation recapture on sale. For the simplified method, CPA involvement is optional but recommended if your home office is a meaningful portion of your total deductions.

FAQ

Common questions

What is the simplified method for the home office deduction?

The simplified method lets you deduct $5 per square foot of your dedicated home office space, up to a maximum of 300 square feet — so the maximum annual deduction is $1,500. You do not need to track actual home expenses or calculate depreciation. Report the deduction directly on Schedule C, line 30. No Form 8829 required. The simplified method is ideal for renters and homeowners who want to avoid depreciation recapture risk when they eventually sell their home.

Can my home office be a corner of a room, or does it need to be a separate room?

A separate room is safest from an audit-defense perspective. However, the IRS does not strictly require a separate room — a clearly delineated, identifiable area within a room can qualify if it is used regularly and exclusively for business. The key test is 'exclusive use': the space cannot double as a TV-watching area, guest sleeping area, or any personal-use space. A dedicated desk in a corner with a room divider, used only for work, can qualify — but you must be able to document and physically demonstrate the exclusive business use.

Can a multi-member LLC deduct home office expenses?

Not directly. A multi-member LLC (partnership) cannot claim the home office deduction because it does not own the members' homes. However, there are two paths available: (1) Unreimbursed partner expenses — each member who uses a qualifying home office can deduct those expenses on their personal Schedule E as an unreimbursed partner expense via Form 2106. This works but is less efficient post-TCJA and more complex. (2) Accountable plan reimbursement — the optimal approach is for the LLC to adopt a written accountable plan and reimburse members monthly for actual home-office costs. Reimbursements are deductible by the LLC and tax-free to the member. This is economically equivalent to the Schedule C deduction.

Does the home office deduction trigger an audit?

The home office deduction is statistically correlated with higher Schedule C audit rates, but claiming a legitimate, well-documented deduction is not itself an audit trigger. What draws IRS attention: (1) a home-office deduction that exceeds 30–40% of your home expenses (implying most of your home is dedicated to business); (2) claiming the deduction for a space that clearly fails the exclusive-use test; (3) repeated Schedule C losses driven primarily by the home office deduction (potential hobby-loss flag). Maintain contemporaneous documentation — measurements, photos, and expense records — and the deduction will withstand audit scrutiny.

What happens to my home office deduction when I sell my home?

For the simplified method: no impact on home sale. There is no depreciation to recapture, and the primary-residence gain exclusion ($250K single, $500K married) applies normally to the entire home. For the regular method: you have been depreciating a portion of your home each year. When you sell, the IRS requires you to recapture that accumulated depreciation as ordinary income (taxed at up to 25% as unrecaptured §1250 gain), even if your total gain qualifies for the primary-residence exclusion. Example: you claimed $5,000 in home-office depreciation over 5 years; on sale, $5,000 of your gain is taxed at up to 25% regardless of the exclusion. Track your Form 8829 depreciation amounts carefully.

Can I deduct internet and phone as a home office expense?

Internet and phone are deductible as business expenses regardless of whether you claim the home office deduction. Business-use percentage of your internet bill (e.g., 80% if used primarily for work) is deductible directly on Schedule C, line 25 (utilities), not via Form 8829. Do not double-count internet costs by including them in both your direct home office expenses on Form 8829 and as a separate line item on Schedule C. Choose one treatment consistently.

Provenance

Legal basis & official sources

Last verified 2026-05-07.

IRC §280A (Home office deduction — exclusivity and regular-use requirements; deduction limitation to gross income from the activity). IRS Revenue Procedure 2013-13 (Simplified method — $5/sq ft, 300 sq ft cap). IRC §280A(c)(1) (Home office as principal place of business, or place used regularly for meeting clients). IRC §179 (Expensing of office equipment and furniture purchased for the home office). IRC §1250 (Unrecaptured §1250 gain — applies to accumulated depreciation on the home office portion of a primary residence when sold). IRS Publication 587 (Business Use of Your Home — comprehensive home office deduction guidance). IRS Form 8829 instructions.

Direct filing portal: https://www.irs.gov/forms-pubs/about-form-8829

If you skip this

Missing a legitimate deduction — the home office deduction can reduce federal income tax by $330–$550/year (22–37% bracket) plus SE tax savings for Schedule C filers. Over 5 years, failing to claim a legitimate $1,500/year simplified-method deduction costs $1,650–$2,750 in avoidable taxes
Overclaiming without documentation — claiming the deduction without a genuinely exclusive-use space, or without retaining recordkeeping documentation, creates audit exposure; the deduction is frequently reviewed and disallowed when it cannot be substantiated
Depreciation recapture surprise — homeowners who use the regular method accumulate depreciation on the home-office portion; when the home is sold, this accumulated depreciation is taxed as ordinary income (unrecaptured §1250 gain, max 25% rate) even if the primary-residence gain exclusion applies to the rest of the home; failing to track this liability leads to unexpected tax bills at sale
S-Corp and multi-member LLC owners missing the accountable-plan path — owners who don't establish a written accountable plan cannot deduct home-office expenses efficiently; the unreimbursed partner-expense path (Schedule E) is less advantageous and is increasingly scrutinized post-TCJA

Official sources

§ A Related guides

§ B Building permits

Miami, FL — Deck permit guide→

§ C Companion tools

Miami, FL — Solar Savings Calculator→

Disclaimer: Informational only, not legal or tax advice. Rules change, so confirm with a business attorney or CPA before you act.