Most 1099 contractors leave money on the table at tax time. Not because they're missing exotic deductions, but because they didn't track everyday expenses well enough to claim them. This guide walks through the common deduction categories for self-employed contractors and what records you need to keep.
This is educational content, not tax advice — talk to a CPA for your specific situation.
The big categories
Home office
If you work from home and have a space used regularly and exclusively for business, you can deduct a home office. Two methods:
- Simplified method: $5 per square foot, up to 300 square feet ($1,500 max)
- Actual expense method: percentage of home expenses (utilities, mortgage interest, insurance, rent, depreciation) based on the square footage used for business
The simplified method is easier; the actual method usually produces a larger deduction if you have the records to support it.
The "exclusively" part matters. The space has to be used only for business — a corner of the living room you sometimes work from doesn't qualify. A dedicated room or clearly defined area does.
Mileage
If you drive for your contractor work, mileage is one of your biggest deductions. The 2026 IRS standard mileage rate is 72.5 cents per business mile (up from 70 cents in 2025).
Examples of deductible business mileage for contractors:
- Driving to client meetings or job sites
- Driving to pick up supplies or equipment
- Driving to professional events, classes, or networking
- Bank, post office, and similar business errands
Not deductible: commuting from home to a regular workplace (though this gets complicated for home-office-based contractors — talk to your CPA).
The IRS requires contemporaneous mileage logs. Use a tracking app (MileIQ, Stride, Everlance) that runs in the background.
Vehicle (if mileage method doesn't fit)
Instead of mileage, you can deduct actual vehicle expenses — gas, insurance, maintenance, depreciation, registration — multiplied by your business-use percentage. This usually produces a larger deduction if you have a high-cost or heavily-used business vehicle. Once you pick a method for a specific vehicle, switching back and forth is restricted.
Phone and internet
Cell phone and home internet bills, allocated by business-use percentage. If your phone is 70% business and 30% personal, deduct 70% of the bill. Same for internet.
A dedicated business line is fully deductible. A separate business phone (a second device, or a second number on the same device) makes the math simpler.
Software, subscriptions, and tools
Software you use for business is deductible — accounting software, design tools, project management apps, CRM systems, scheduling apps, cloud storage. Subscriptions to industry publications, online learning platforms, and trade resources are deductible.
A clean rule: if you use it for business, it's deductible at the business-use percentage.
Equipment and computer
Computers, monitors, printers, cameras, tools — anything used in your contractor work is generally deductible. Equipment over a certain cost may need to be depreciated, but Section 179 typically allows full expensing in the year of purchase for most small contractor equipment.
If a device is mixed personal/business, allocate by use percentage.
Health insurance
Self-employed contractors can deduct health insurance premiums (for themselves, spouse, and dependents) as an above-the-line deduction — meaning it reduces your AGI rather than having to itemize. This is one of the most valuable deductions for self-employed people and one that's often missed.
The deduction is limited to the net earnings from self-employment, and you can't claim it if you (or your spouse) were eligible for an employer-sponsored health plan.
Retirement contributions
Contributions to a self-employed retirement plan — SEP-IRA, Solo 401(k), SIMPLE IRA — are deductible. The limits are significantly higher than regular IRA contributions:
- SEP-IRA: up to 25% of net self-employment earnings (with a high annual cap)
- Solo 401(k): even higher, combining employee and employer-side contributions
This is one of the biggest tax-reduction strategies available to self-employed contractors. Setting up a plan early in the tax year makes it much easier to maximize.
Professional services
Fees you pay to your bookkeeper, CPA, lawyer, business consultant, or other professional are deductible. This includes the cost of having someone prepare your taxes.
Continuing education and certifications
Courses, certifications, books, conferences, and professional development that maintain or improve skills in your current trade are deductible. Education that qualifies you for a new trade generally isn't.
Marketing and advertising
Website hosting, design, ads (Facebook, Google, LinkedIn), business cards, branded materials, photography, networking event fees, and other marketing expenses are deductible.
Business meals
Most business meals are 50% deductible. The meal needs to have a clear business purpose — a meeting with a client, a working lunch with a collaborator, a meal while traveling for work. Personal meals don't qualify, even on a work day.
Note the receipt with who you were with and what was discussed.
Travel
Business travel is fully deductible — airfare, lodging, ground transportation, baggage fees — plus 50% of meals during travel. The trip has to be primarily for business.
Self-employment tax (half of it)
This isn't a deduction you claim against contractor income directly, but it's worth knowing: you can deduct half of your self-employment tax against your income for income tax purposes. Your tax software or CPA handles this automatically.
Deductions specific to 1099 work
Some categories matter more for contractors than for traditional businesses:
- Quarterly estimated tax payments aren't deductible, but they're how you avoid an underpayment penalty. (How much to set aside →)
- Half of self-employment tax (mentioned above) — automatic, but worth knowing.
- Bank fees, payment processing fees, and platform fees (Stripe, PayPal, Square fees on your contractor payments) are deductible.
- Industry-specific licensing and insurance — E&O insurance for consultants, professional licenses, bond costs, etc.
What 1099 contractors can't deduct
A few common misconceptions:
- Commuting to a regular client site — generally not deductible
- Clothing (unless it's a uniform, branded, or protective gear)
- Personal grooming, gym memberships, or self-care
- Entertainment (sports tickets, concerts, golf)
- Time off or "lost income" — you can only deduct actual cash expenses
- Tax payments themselves (federal income tax isn't a deduction)
What records you need
For every deduction, you need supporting documentation:
- The receipt or invoice
- Proof of payment
- For meals and travel: business purpose and who was involved
- For mileage: contemporaneous mileage log
- For mixed-use items: business-use percentage and how you calculated it
How long to keep these records →
Common mistakes
- Mixing personal and business spending on the same card — makes deductions hard to defend
- No mileage log — leaves a huge deduction unclaimed
- Forgetting health insurance — one of the biggest deductions for self-employed people
- No retirement contributions — leaving real tax savings on the table
- Reconstructing expenses at tax time — guarantees you'll miss things
Frequently asked questions
No. As a sole proprietor (no LLC), you file Schedule C with your personal return and claim these deductions there. An LLC doesn't change your deductions — it changes your liability protection. An S-corp election (which an LLC can make) does change how you're taxed but doesn't change what counts as a deductible expense.
A deduction reduces your taxable income. A tax credit reduces your tax bill directly, dollar-for-dollar. Credits are more valuable per dollar, but most contractor expenses are deductions, not credits.
No — business deductions go on Schedule C, separate from itemized deductions on Schedule A. You can take the standard deduction on your personal return AND claim every business deduction you're entitled to.
Depends entirely on your income, expenses, and tax situation. A common pattern: a contractor with $80,000 in gross 1099 income might have $20,000–$30,000 in legitimate deductions, dropping their taxable income significantly. The actual tax savings depend on your bracket.
Where to start
Most 1099 contractors don't lose deductions because the tax law is complicated. They lose them because their bookkeeping isn't capturing the expenses in real time. Clean monthly bookkeeping makes every deduction easier to find, document, and defend.
SoFlo360 helps independent contractors and self-employed business owners keep their books in shape so tax season is faster and cheaper. Spanish-friendly support is available for contractors who'd rather handle financial conversations in Spanish.
Book a free consultation or learn more about our bookkeeping services.
This post is educational content, not tax advice. For your specific tax situation, consult a qualified CPA or tax professional.