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1099 Tax Deductions: 15 Write-Offs Every Freelancer Should Know

Every year, freelancers and 1099 contractors leave thousands of dollars on the table by missing legitimate deductions. These are the 15 most commonly missed write-offs.

Every year, freelancers and 1099 contractors leave thousands of dollars on the table by missing legitimate business deductions. Unlike W-2 employees, you can deduct a wide range of expenses that reduce both your income tax and your self-employment tax.

Here are the 15 deductions most commonly missed — and most commonly allowed — for self-employed professionals.

Tax-Saving Power

Every $1,000 in business deductions saves you approximately $300–$400 in combined income and self-employment taxes. Ten missed deductions of $500 each = $1,500+ in lost tax savings.

1. Home Office Deduction

If you have a space in your home used regularly and exclusively for business, you can deduct a portion of your rent/mortgage, utilities, insurance, and repairs. You can use the simplified method ($5/sq ft, up to 300 sq ft) or the actual expense method (percentage of total home costs).

2. Health Insurance Premiums

Self-employed individuals can deduct 100% of health, dental, and long-term care insurance premiums for themselves, spouse, and dependents — as an adjustment to income (even if you don't itemize).

3. Business Mileage

If you drive for business, you can deduct mileage at the 2024 rate of 67 cents per mile, or deduct actual vehicle expenses (gas, insurance, repairs, depreciation) proportional to business use. Commuting to a regular office doesn't count, but driving to client meetings, job sites, or business errands does.

4. Phone and Internet

You can deduct the business-use percentage of your cell phone and home internet. If you use your phone 60% for business, deduct 60% of your phone bill.

5. Software and Subscriptions

Every tool you use for business is deductible: Adobe Creative Cloud, Microsoft 365, Zoom, QuickBooks, Notion, project management apps, email marketing tools, website hosting, domain registration, cloud storage, and more.

6. Professional Development

Courses, books, industry conferences, certifications, and training related to your current profession are fully deductible. This includes online courses, workshops, and subscription learning platforms like MasterClass or LinkedIn Learning when used for business purposes.

7. Professional Services

Fees paid to accountants, lawyers, designers, virtual assistants, contractors, and consultants are fully deductible. This includes your CPA's fee for preparing your business tax return.

8. Business Meals

Meals with clients, prospects, or while traveling for business are generally 50% deductible. Keep receipts and note who you met with and why.

9. Travel Expenses

Business trips include fully deductible costs: flights, hotels, rental cars, rideshares, parking, and tolls. Keep in mind the trip must be primarily for business purposes.

10. Office Supplies and Equipment

Printer ink, paper, pens, folders, shipping supplies, and other consumables are deductible. Equipment purchases (computers, desks, chairs) can often be fully deducted in the year of purchase under Section 179 or bonus depreciation.

11. Marketing and Advertising

Website development, SEO services, social media ads, business cards, logo design, and any other marketing spend is 100% deductible.

12. Bank and Payment Processing Fees

Monthly business bank fees, credit card processing fees (Stripe, Square, PayPal), wire transfer fees, and merchant account fees are all deductible business expenses.

13. Retirement Contributions

Contributions to a Solo 401(k), SEP-IRA, or SIMPLE IRA are deductible and can dramatically reduce your tax bill. A Solo 401(k) allows contributions up to $69,000 in 2024.

14. Qualified Business Income (QBI) Deduction

This one isn't a "deduction" in the traditional sense — it's a tax break that reduces your taxable business income by up to 20%. Most self-employed people qualify, but income limits and business type restrictions apply.

15. Startup Costs (First Year)

If you just launched your business, you can deduct up to $5,000 in startup costs plus $5,000 in organizational costs in the first year. This includes things like market research, initial advertising, legal fees to form an entity, and business licensing.

Pro Tip

Don't try to remember all these deductions at tax time. Use a dedicated business bank account and a bookkeeping system like QuickBooks or Xero throughout the year. Tracking expenses as you go will save you hundreds of hours and catch deductions you'd otherwise miss.

The Bottom Line

Most freelancers under-deduct. Not because they're cheating — because they don't know what's allowed. Keeping organized records, using a separate business account, and working with a CPA who specializes in self-employed taxes can easily save you $3,000–$10,000+ per year.

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