Small Business Tax Deductions 2026: 22 Write-Offs to Claim

Use this 2026 checklist of small business tax deductions, with the IRS limits for mileage, home office, meals and equipment, plus the mistakes to skip.

Entrepreneurship

Nov 9, 2026

Small business owner sorting receipts for tax deductions at the counter of his bike repair shop

Resumo do artigo

A deduction counts when the expense is ordinary and necessary for your business and you can prove it.
For 2026, claim 72.5 cents per mile through June 30, 76 cents from July 1, and up to $1,500 for a home office.
Meals are 50% deductible, gifts cap at $25 per person, and entertainment is never deductible.
Owners also deduct half of self-employment tax, health premiums, SEP-IRA contributions and up to 20% of business income.
Keep receipts and logs at least 3 years, and count card processing fees on Schedule C line 10.

Small business tax deductions are the costs of running your business that the Internal Revenue Service (IRS) lets you subtract from your income before tax. You pay tax on profit, not on sales, so every receipt you miss is money you hand over for nothing.

Below is the 2026 checklist of 22 write-offs, with the limit for each one and where it goes on your return. For a sole proprietor or single-member LLC (limited liability company), most land on Schedule C, and a few go on your personal Form 1040.

What counts as a deductible business expense?

An expense is deductible when it is both ordinary and necessary. The IRS defines ordinary as common and accepted in your field, and necessary as helpful and appropriate for your business (IRS Publication 334). It doesn't have to be indispensable. A food truck owner buying a second propane tank passes the test. The same owner buying a family vacation does not.

Ordinary: Common and accepted in your trade or business
Necessary: Helpful and appropriate, not required to be indispensable
Business share only: Split mixed-use costs like phone, car and internet by business percentage
Proof: Receipt or statement showing amount, date, place and business purpose
Never deductible: Entertainment, club dues, fines, political contributions and commuting

What is the full list of small business tax deductions for 2026?

Start with the operating costs you pay every month, then add the vehicle, home and equipment rules, and finish with the owner deductions on your personal return. Schedule C line numbers come from the IRS Schedule C instructions.

#	Deduction	Rule or 2026 limit	Where it goes
1	Card and payment app fees	Fully deductible as a cost of getting paid	Schedule C, line 10
2	Advertising and marketing	Ads, website, flyers, business cards	Schedule C, line 8
3	Supplies	Items used up in the business within a year	Schedule C, line 22
4	Office expenses	Postage, printer ink, small office items	Schedule C, line 18
5	Software and subscriptions	Bookkeeping, design and scheduling apps	Schedule C, Part V
6	Rent for business space	Shop, booth, storage unit or market stall	Schedule C, line 20b
7	Business insurance	Liability, property and commercial auto, not health	Schedule C, line 15
8	Legal and professional fees	Accountant, lawyer, tax prep for the business	Schedule C, line 17
9	Contract labor	Freelancers and independent contractors	Schedule C, line 11
10	Wages	Pay for employees, not for yourself	Schedule C, line 26
11	Phone, internet and utilities	Business share only	Schedule C, line 25
12	Car or truck	72.5 cents per mile through June 30, 2026, 76 cents from July 1, or actual costs	Schedule C, line 9
13	Parking and tolls	Business trips, on top of the mileage rate	Schedule C, line 9
14	Travel away from home	Overnight trips: airfare, lodging, rideshare	Schedule C, line 24a
15	Business meals	50% of the cost	Schedule C, line 24b
16	Business gifts	Up to $25 per person per year	Schedule C, Part V
17	Home office	$5 per square foot, up to $1,500 (simplified)	Schedule C, line 30
18	Equipment and tools	$2,500 per item de minimis, Section 179 or bonus	Line 13 or 22, Form 4562
19	Startup costs	Up to $5,000 in year one, rest over 180 months	Form 4562 and Schedule C
20	Half of self-employment tax	50% of the 15.3% tax	Schedule 1, line 15
21	Self-employed health insurance	Premiums for you, spouse and dependents	Form 7206, Schedule 1
22	Retirement and QBI	SEP-IRA up to $72,000, QBI up to 20%	Schedule 1, Form 8995

2026 deduction limits: 76 cents per mile from July 1, $1,500 home office, 50% meals, $25 gifts and $72,000 SEP-IRA

How much does a tax deduction save you?

A deduction saves you your tax rate times the expense, not the full expense. For a sole proprietor, two taxes drop at once: self-employment tax and income tax.

Suppose you run a mobile dog grooming business and you forgot $1,000 in shampoo, clippers and booking app fees. Adding them back cuts self-employment tax by $141.30, because the 15.3% rate applies to 92.35% of your profit (IRS self-employment tax). If you sit in the 12% federal income tax bracket, income tax drops by up to $120 more. That's about $261 back for an hour of sorting receipts.

Example of a $1,000 business expense saving $141.30 in self-employment tax and $120 in income tax, about $261 total

The exact number shifts with your bracket, state tax and the qualified business income deduction. The pattern holds: a missed $1,000 receipt costs a typical owner more than $250, so tracking pays for itself fast.

How do the vehicle and mileage deductions work in 2026?

Use the standard mileage rate unless your car is expensive to run. The IRS rate is 72.5 cents per business mile from January 1 to June 30, 2026, and 76 cents from July 1 to December 31 (IRS mileage announcement, IRS mileage rates). Drive 3,000 business miles in each half of 2026 and you deduct $4,455 without saving a single gas receipt.

The other route is actual expenses: gas, insurance, repairs, registration and depreciation, multiplied by your business-use percentage. If you want the standard rate at any point, choose it in the first year you use the car for business. Parking fees and tolls for business trips count on top of either method.

Driving from home to your shop or regular workplace is commuting, and it isn't deductible (IRS Publication 334). Trips from your shop to a client, a supplier or the bank are business miles. Log the date, miles and purpose for each one.

Can you deduct a home office?

Yes, if you use a specific part of your home regularly and exclusively for business. A corner of the dining table where the family eats doesn't qualify. A spare room that only holds your inventory and desk does.

Simplified method: $5 per square foot, up to 300 square feet, so $1,500 at most
Regular method: Business percentage of rent or mortgage interest, utilities, insurance and repairs on Form 8829
Best for: Simplified: small spaces and less paperwork. Regular: larger offices in high-cost homes
Limit: The deduction can't exceed the gross income from the business that uses the space

The simplified option trades a smaller deduction for almost no math (IRS simplified home office option). If your office takes 15% of a home with $30,000 in yearly costs, the regular method gives $4,500 instead of $1,500, which is worth the extra form.

How do you write off equipment and startup costs?

Most small purchases can come off this year's taxes in full. Three rules decide it:

Rule	What it does	Limit
De minimis safe harbor	Expense low-cost items instead of depreciating them	$2,500 per item or invoice ($5,000 with audited statements)
Section 179	Deduct the full cost of equipment in the year you start using it	$2,560,000 for 2026, reduced above $4,090,000 of purchases
Bonus depreciation	Deduct 100% of qualified property in year one	Permanent for property acquired after January 19, 2025

The de minimis rule comes from IRS Publication 334 and requires an election statement with your return. Section 179 and bonus depreciation were expanded by the 2025 tax law (IRS business provisions, IRS bonus depreciation guidance). A $1,800 laptop or a $2,200 espresso grinder fits under the $2,500 safe harbor, so you skip depreciation schedules entirely.

Costs from before you opened, like market research, training and pre-launch ads, are startup costs. You can deduct up to $5,000 in the year the business begins, reduced dollar for dollar once startup costs pass $50,000. The rest is spread over 180 months (IRS Publication 583). Organizational costs, such as LLC filing fees, get their own separate $5,000.

Which meals, travel and gifts are deductible?

Business meals are 50% deductible when you or an employee attend and the meal isn't lavish. Taking a supplier to lunch to negotiate prices qualifies. Tickets to a ball game with the same supplier don't, because entertainment is no longer deductible at all (IRS Publication 463).

Travel counts when you leave your tax home overnight for business. Airfare, lodging and rides are fully deductible, and the meals on the trip follow the 50% rule. Business gifts top out at $25 per person per year, so a $60 gift basket to your best client still deducts only $25.

What deductions do owners claim on their personal return?

Four of the biggest write-offs skip Schedule C and go on your Form 1040, so they're easy to miss.

Half of self-employment tax: Deduct 50% of the 15.3% tax on Schedule 1, line 15
Self-employed health insurance: Medical, dental and long-term care premiums for you and your family, using Form 7206
SEP-IRA: For 2026, the lesser of 25% of compensation or $72,000, with compensation capped at $360,000
Qualified business income (QBI): Up to 20% of business profit, permanent, with a $400 minimum for at least $1,000 of active QBI from 2026
Catch: No health insurance deduction for any month you could join a subsidized plan through your or your spouse's employer

The QBI deduction works whether or not you itemize (IRS QBI deduction). For a SEP-IRA (Simplified Employee Pension), your own limit uses net earnings after half of the self-employment tax, so the real ceiling lands near 20% of net profit (IRS SEP limits). Health premiums go through Form 7206. Read the full breakdown in the guide to self-employment tax.

What records do you need to keep?

Keep proof of every deduction for at least 3 years after you file. That window grows to 6 years if you leave out more than 25% of your income, and property records stay until 3 years after you sell the asset (IRS record retention guide).

A separate business account does most of the work, because every charge on it already has a date and amount. Add a photo of each receipt with a one-line note on the business purpose. See how to separate business and personal finances and track business expenses without a bookkeeper.

Your payment fees are part of that paper trail. Suppose you take $40,000 in card sales with JIM Tap to Pay at 1.99% per sale: that's $796 in fees for line 10, and no monthly fee to track on top. The JIM tax report sends your Form 1099-K, which reports gross payments processed through JIM. Track your processing fees separately as business expenses.

Which deduction mistakes trigger IRS problems?

Mistake	Why it hurts	Fix
Deducting 100% of a mixed-use phone or car	Only the business share counts	Track the business percentage and claim that part
Claiming commuting miles	Home to your regular workplace is personal	Log only trips from your workplace to business stops
Writing off entertainment	Not deductible at any percentage	Separate meals (50%) from tickets and events (0%)
Paying yourself and deducting it	Owner draws aren't wages for a sole proprietor	Take draws from profit; see Schedule C rules
No receipts or log	The IRS can disallow the deduction	Photograph receipts and keep a mileage log

Not sure if your business type changes the rules? Compare an LLC vs sole proprietorship, and talk to a tax professional before you claim a large equipment purchase or a regular-method home office.

Last reviewed: October 2026. This guide explains IRS rules for general information and isn't tax advice.

Frequently Asked Questions

What can a small business write off?

Any cost that is ordinary and necessary for your trade, such as supplies, advertising, software, rent, insurance, card processing fees, business mileage and a qualifying home office. Personal costs, entertainment and fines stay off the list.

How do business write-offs work?

A write-off lowers your business profit, and you pay tax on profit, not on sales. For a sole proprietor, each dollar of deductions also lowers the 15.3% self-employment tax.

Can I deduct expenses if my business made no money?

Yes. If expenses exceed income, Schedule C shows a loss that can offset other income on your return. The home office deduction is the exception: it can't create a loss, but you can carry the extra forward under the regular method.

Do I need receipts for every business expense?

You need records that prove the amount, date, place and business purpose. Receipts, bank statements and a mileage log do that. Keep them for at least 3 years after you file.

Is the standard mileage rate better than actual car expenses?

The 2026 rate, 72.5 cents per mile through June 30 and 76 cents from July 1, wins for most owners who drive a paid-off, fuel-efficient car. Actual expenses can win for a pricey vehicle with high insurance and repairs. Pick the standard rate in the car's first business year to keep both options open later.

Are payment processing fees tax deductible?

Yes. Card and payment app fees are a cost of getting paid, and they go on Schedule C line 10 as commissions and fees.