# Can a Contractor Claim the Home Office Deduction?

Yes. A contractor who does the work at customers' homes can still deduct a home office if a space is used exclusively and regularly for the business's administrative work, such as billing, scheduling and bookkeeping, and there's no other fixed location for it. The simplified method allows $5 per square foot, up to 300 square feet, or $1,500 a year.

## Key takeaways

- The space must be used **exclusively and regularly** for business. A desk in the family room doesn't qualify; a dedicated spare room or a walled-off corner of the garage can.
- IRS Publication 587 uses a self-employed plumber as its example: a home office used only for phoning customers, ordering supplies and keeping the books qualifies as the principal place of business.
- Simplified method: $5 per square foot, max 300 square feet, max $1,500. Regular method: the business percentage of rent or depreciation, utilities, insurance and repairs, on Form 8829.
- A detached garage, shop or barn used exclusively and regularly for the business is deductible even if it isn't your principal place of business.
- A qualifying home office also turns the drive from home to your first job site into deductible business miles.

> **Sources and year**
>
> Rules come from IRS Publication 587 (2025 edition, the latest), the IRS simplified-option page, Publication 463 and Publication 334, checked October 12, 2026. The $5 per square foot rate and 300-square-foot cap are not indexed for inflation and are unchanged for 2026. General information, not tax advice; your CPA or enrolled agent should confirm your space qualifies.

## How the home office deduction works for contractors

Most contractors assume the home office deduction is for people who sit at a desk all day. It isn't. The IRS lets you deduct the business use of your home when a part of it is your **principal place of business**, and since 1999 the rules have said a home office counts as your principal place of business if you use it for the **administrative or management work** of the business and have no other fixed location where you do substantial amounts of that work.

Publication 587 spells this out with Sid, a self-employed plumber. Sid spends most of the day at customers' homes installing and repairing plumbing. Sid has a small home office used exclusively and regularly for phoning customers, ordering supplies and keeping the books. Sid writes estimates at customers' premises and uses an outside bookkeeping service for billing. The IRS's conclusion: Sid's home office qualifies as the principal place of business, and the expenses are deductible. That's most owner-operators in the trades.

## The tests your space has to pass

1. **Exclusive use.** The area is used only for the business. It doesn't have to be a whole room or have a door, but it must be a separately identifiable space. A desk your kids also use for homework fails. Publication 587 gives an exception only for storing inventory or product samples when you're in retail or wholesale, which most contractors aren't.
2. **Regular use.** You use it for business on a continuing basis. Occasional or incidental use doesn't count.
3. **Principal place of business, or another qualifying use.** It qualifies if you do your administrative or management work there (billing, scheduling, ordering, books, payroll) and have no other fixed location where you do substantial amounts of that work. Doing estimates on site, having a bookkeeper bill from their office, or working from your truck doesn't disqualify you. Alternatively, the space qualifies if you meet customers there in the normal course of business, or if it's a separate structure used for the business.

What breaks it: renting a shop with an office where you do the paperwork, or having suitable admin space at a shop and choosing to work from home anyway. Per Publication 587, if you have another fixed location with suitable space for administrative work, the home office isn't your principal place of business.

## Two ways to figure the deduction

**Simplified method vs. regular method**

|  | Simplified method | Regular method (Form 8829) |
| --- | --- | --- |
| How it's figured | $5 × square feet of office, up to 300 sq ft | Business % of home × actual costs |
| Maximum | $1,500 a year | No fixed cap; limited to business gross income |
| What's included | Everything about the home in one number | Rent or mortgage interest, property tax, utilities, insurance, repairs, HOA, depreciation of the home |
| Depreciation of your home | None, so no recapture when you sell | Business part depreciated over 39 years; recaptured on sale |
| Mortgage interest and property tax | Claimed in full on Schedule A if you itemize | Split between Form 8829 and Schedule A |
| Excess over business income | Lost; no carryover | Carries forward to future years |
| Records | Square footage only | Every home bill, plus square footage |

_Sources: IRS Publication 587 (2025); IRS, Simplified option for home office deduction. You can switch methods from year to year._

**Regular method**

```
Deduction = (Office sq ft ÷ Home sq ft) × Indirect home expenses + 100% of direct office expenses
```

Where:
- Indirect expenses = costs for the whole home: rent, mortgage interest, property tax, utilities, insurance, general repairs, depreciation
- Direct expenses = costs only for the office, such as painting that room or an office-only repair

> **Example: an HVAC owner's spare-room office**
>
> This is an illustrative example. An HVAC owner uses a 12 × 15 foot spare bedroom (180 sq ft) only for scheduling, invoicing, ordering parts and payroll. Her house is 1,800 sq ft, so the business percentage is 10%. She has no shop or other office.
>
> **Simplified:** 180 × $5 = **$900**.
>
> **Regular:** her annual rent is $27,600, utilities $4,200, renter's insurance $360, for $32,160 of indirect expenses. 10% = **$3,216**. If she owned the home, mortgage interest, property tax and depreciation on 10% of the home's basis would go in instead of rent.
>
> The regular method is worth about $2,300 more here, at the cost of keeping the bills and filing Form 8829. Her deduction can't exceed the gross income from the business minus other business expenses; anything over that carries forward under the regular method.

## Garages, shops and other separate structures

Publication 587 treats a **separate free-standing structure**, such as a workshop, garage or barn, as deductible if you use it exclusively and regularly for the business. It doesn't have to be your principal place of business or a place where you meet customers. A detached garage you've turned into a tool crib and fabrication space, used only for the business, counts. An attached garage is part of the home: the portion used exclusively for business can be included in your business percentage, but a bay that also holds the family car doesn't qualify.

Improvements that benefit only the business space, like shelving built into the shop or a dedicated electrical sub-panel, are depreciated separately at the business percentage. Under Publication 587, improvements to the home made this year use a 39-year recovery period.

## Why the home office matters for your mileage

There's a second payoff. Per Publication 463, if your home office qualifies as your principal place of business, you can deduct daily transportation between your home and another work location in the same business. Without it, the drive from home to the first job of the day can be nondeductible commuting. For a contractor driving 15,000 business miles a year, at the 2026 rates of 72.5¢ (January–June) and 76¢ (July–December), that's a deduction worth over $11,000 that partly hinges on the home office qualifying. See the [mileage deduction](https://www.brix.so/learn/mileage-deduction-for-contractors).

## Deducting tools and equipment

Tools are deducted separately from the home office, on Schedule C or Form 4562, and you don't need a home office to claim them. Three paths, depending on the cost:

**How contractors deduct tools and equipment (2026)**

| Cost of the item | Usual treatment | Rule and source |
| --- | --- | --- |
| Up to $2,500 per item or invoice | Expense it the year you buy it | De minimis safe harbor; elect it on your return each year and expense the items in your own books (Pub 334). Covers most hand and power tools. |
| Over $2,500, used more than 50% for business | Deduct in year one with Section 179 or 100% bonus depreciation | Section 179 limit $2,560,000 for tax years beginning in 2026; 100% bonus for property acquired and placed in service after Jan. 19, 2025 (Pub 946, Rev. Proc. 2025-32, Notice 2026-11). See [Section 179](https://www.brix.so/learn/section-179-deduction) and [bonus depreciation](https://www.brix.so/learn/bonus-depreciation). |
| Over $2,500, spreading the deduction | Depreciate over the recovery period | Construction equipment and trucks are 5-year property; office furniture 7-year (Pub 946). See [depreciation](https://www.brix.so/learn/depreciation). |
| Repairs, blades, bits, consumables | Expense as supplies or repairs | Ordinary business expenses (Pub 334). |
| Protective gear | Expense | Hard hats, safety boots, glasses and gloves required for the work are deductible; everyday clothing is not. |

_Tools used partly for personal projects are deductible only for the business share. Keep the receipt, and for bigger items the model, serial number and date placed in service._

> **Example: a year of tool purchases for an electrician**
>
> This is an illustrative example. In 2026 an electrician buys a $1,900 cordless tool combo kit, a $650 meter, $1,200 of hand tools across several receipts, and a $9,800 wire puller, all 100% for the business.
>
> With a de minimis election in place, the kit, the meter and the hand tools, **$3,750**, are expensed as supplies because each item or invoice is under $2,500. The $9,800 puller can be deducted in full in 2026 under Section 179 (if business income allows) or 100% bonus depreciation, or depreciated as 5-year property. Total potential 2026 deduction: **$13,550**.

## Home office by trade

**How the home office rules play out in each trade**

| Trade | Typical setup | What usually decides it |
| --- | --- | --- |
| HVAC | Owner dispatches, quotes and bills from a spare room | Qualifies as principal place of business if there's no shop office. A rented warehouse with a desk changes that. |
| Plumbing | The IRS's own example | Pub 587's plumber qualifies even with estimates written on site and billing outsourced. |
| Roofing | Office at home, materials delivered to jobs | Qualifies for admin work; a storage container at a yard isn't an office. |
| Electrical | Home office plus a detached garage workshop | Office qualifies as principal place of business; the garage qualifies separately as a separate structure if exclusively used. |
| Landscaping | Home office, trucks and trailers parked at home | The office qualifies; the driveway doesn't. A dedicated equipment barn can qualify as a separate structure. |
| Cleaning | Scheduling and supplies from home | Qualifies for admin use; supply storage in a closet counts only if the space is exclusively business. |

_Illustrative examples. Qualification depends on your facts._

## Common mistakes

- **Claiming a shared space.** The kitchen table and the family computer desk don't pass the exclusive-use test, no matter how much work you do there.
- **Claiming the home office and a rented shop office.** If you have suitable admin space at another fixed location, the home office isn't your principal place of business.
- **Including the whole garage** when one bay holds the family car.
- **Skipping the deduction out of audit fear.** The simplified method is a single line on Schedule C, with square footage as the only record. If the space qualifies, claim it.
- **Forgetting the gross income limit.** In a loss year, the home office deduction (other than mortgage interest and taxes you'd deduct anyway) can't push the business further into a loss; under the regular method the excess carries forward.
- **Forgetting recapture.** Depreciation claimed under the regular method is recaptured when you sell the house. The simplified method avoids that.

BRIX handles the administrative work that makes a home office qualify, scheduling, quotes, invoices and follow-ups, from one system, and keeps tool and equipment purchases categorized and synced to QuickBooks so your CPA has the receipts and dates. BRIX doesn't decide whether your space qualifies, file taxes or give tax advice.

- [Bookkeeping and tax help](https://www.brix.so/features/bookkeeping-taxes): Keeps expenses categorized, tracks 1099 subcontractors and sales tax, and reminds you of quarterly estimated tax dates. BRIX does not file taxes or give tax advice.
- [QuickBooks sync](https://www.brix.so/integrations/quickbooks): Syncs customers, invoices and payments with QuickBooks so the books match the jobs.
- [CRM](https://www.brix.so/features/crm): One record for every customer, lead, call, job, quote and invoice.

See the full [contractor tax deductions list](https://www.brix.so/learn/contractor-tax-deductions-list), the [contractor taxes guide](https://www.brix.so/guides/contractor-taxes), and how [BRIX bookkeeping and tax help](https://www.brix.so/features/bookkeeping-taxes) works.

## Frequently asked questions

### Can a contractor who works at job sites claim a home office?

Yes, if a part of the home is used exclusively and regularly for the business's administrative or management work and there's no other fixed location where you do substantial amounts of it. IRS Publication 587's own example is a self-employed plumber whose home office is used only for calling customers, ordering supplies and keeping the books.

### How much is the home office deduction for 2026?

Under the simplified method, $5 per square foot of qualifying space, up to 300 square feet, so a maximum of $1,500. Under the regular method, you deduct the business percentage of your actual home costs, including rent or mortgage interest, utilities, insurance, repairs and depreciation, on Form 8829.

### Can I deduct my garage as a home office?

A detached garage or shop used exclusively and regularly for the business is deductible as a separate structure, even if it isn't your principal place of business. An attached garage is part of the home; only an area used exclusively for business counts, and a bay shared with the family car doesn't.

### Does a home office have to be a separate room?

No. It must be a separately identifiable space used only for business, but it doesn't need walls or a door. A clearly defined corner of a room used exclusively for the business qualifies; a desk that's also used for personal purposes doesn't.

### Simplified or regular method: which is better?

Simplified is easier and avoids depreciation recapture when you sell the house, but caps at $1,500. The regular method usually produces a bigger deduction for larger offices or higher housing costs, and lets unused amounts carry forward. You can choose each year.

### Can I deduct tools without a home office?

Yes. Tools are a separate business deduction. Items up to $2,500 per item or invoice can be expensed under the de minimis safe harbor, and bigger equipment can be deducted in year one under Section 179 or 100% bonus depreciation, or depreciated over five or seven years.

### Does a home office make my drive to job sites deductible?

Generally, yes. Per Publication 463, if your home office qualifies as your principal place of business, trips from home to other work locations in the same business are deductible business miles rather than commuting. Keep a mileage log either way.

## Related

- [Mileage Deduction for Contractors: 2026 Rates and Rules](https://www.brix.so/learn/mileage-deduction-for-contractors)
- [Contractor Tax Deductions: The Complete List for 2026](https://www.brix.so/learn/contractor-tax-deductions-list)
- [What Is the Section 179 Deduction?](https://www.brix.so/learn/section-179-deduction)
- [What Is Bonus Depreciation?](https://www.brix.so/learn/bonus-depreciation)
- [What Is Depreciation?](https://www.brix.so/learn/depreciation)
- [What Is Self-Employment Tax?](https://www.brix.so/learn/self-employment-tax)
- [Mileage Deduction Calculator for Contractors (2026)](https://www.brix.so/tools/mileage-deduction-calculator)
- [Section 179 Calculator for Trucks, Vans and Equipment (2026)](https://www.brix.so/tools/section-179-calculator)
- [Taxes for Contractors: The 2026 Guide for Self-Employed Trades Owners](https://www.brix.so/guides/contractor-taxes)
- [Bookkeeping for contractors that keeps your books tax-ready all year](https://www.brix.so/features/bookkeeping-taxes)

## Sources

- [IRS: Publication 587 (2025), Business Use of Your Home](https://www.irs.gov/pub/irs-pdf/p587.pdf) (checked 2026-10-12)
- [IRS: Simplified option for home office deduction ($5/sq ft, 300 sq ft)](https://www.irs.gov/businesses/small-businesses-self-employed/simplified-option-for-home-office-deduction) (checked 2026-10-12)
- [IRS: Publication 463 (2025), Travel, Gift, and Car Expenses (office in the home and transportation)](https://www.irs.gov/pub/irs-pdf/p463.pdf) (checked 2026-10-12)
- [IRS: Publication 334 (2025), Tax Guide for Small Business (de minimis safe harbor)](https://www.irs.gov/pub/irs-pdf/p334.pdf) (checked 2026-10-12)
- [IRS: Publication 946 (2025), How To Depreciate Property](https://www.irs.gov/pub/irs-pdf/p946.pdf) (checked 2026-10-12)
- [IRS: Rev. Proc. 2025-32 (2026 Section 179 limits)](https://www.irs.gov/pub/irs-drop/rp-25-32.pdf) (checked 2026-10-12)
- [IRS: Standard mileage rates (2026)](https://www.irs.gov/tax-professionals/standard-mileage-rates) (checked 2026-10-12)

---
Written by BRIX Editorial Team. Last updated 2026-10-12. General information, not tax, legal or financial advice.
Canonical: https://www.brix.so/learn/home-office-deduction-for-contractors