Tax Strategy · Self-Employed

1099 Contractor Tax Deductions: What You Can Write Off

Most self-employed contractors overpay taxes because they miss deductions they’re legally entitled to. Here’s a complete breakdown — and how we make sure you don’t leave money on the table.

Why 1099 deductions matter more than you think

As a 1099 contractor, you pay both the employee and employer portions of Social Security and Medicare — a combined 15.3% self-employment tax on top of your income tax. That’s a heavy burden.

The good news: the IRS allows self-employed individuals to deduct ordinary and necessary business expenses, which directly reduces your taxable income and your SE tax bill.

The challenge is knowing what qualifies, how to document it, and how to claim it correctly on Schedule C. That’s where we come in.

Key deductions at a glance

Home office (regular & exclusive use)
Vehicle mileage or actual expenses
Health insurance premiums (100%)
Retirement contributions (SEP-IRA, Solo 401k)
Equipment, software & subscriptions
Professional development & education
50% of self-employment tax
Business insurance & professional fees

Deduction categories explained

Every category below is available to qualifying 1099 contractors. Documentation requirements vary — we help you capture all of them.

Home Office

  • Dedicated workspace (regular & exclusive use required)
  • Simplified method: $5/sq ft up to 300 sq ft
  • Regular method: rent/mortgage interest, utilities, insurance × business %
  • Internet service (business-use portion)

Vehicle & Travel

  • Standard mileage rate (67¢/mile in 2024)
  • Actual expenses: gas, insurance, repairs, depreciation
  • Business flights, hotels, and 50% of meals while traveling
  • Parking and tolls for business trips

Equipment & Technology

  • Computers, monitors, tablets, phones (business-use %)
  • Software subscriptions (QuickBooks, Adobe, Zoom, etc.)
  • Office furniture and supplies
  • Section 179 expensing or bonus depreciation on larger purchases

Health & Benefits

  • 100% of health, dental, and vision insurance premiums
  • HSA contributions (up to annual limits)
  • Long-term care insurance premiums (age-based limits)
  • Medical expenses above 7.5% AGI threshold

Education & Professional Development

  • Courses, certifications, and training directly related to your work
  • Books, journals, and trade publications
  • Professional association dues and memberships
  • Conference and seminar fees

Professional Services & Other

  • Bookkeeping and accounting fees (including this service)
  • Legal fees related to your business
  • Business insurance premiums
  • Retirement contributions: SEP-IRA (up to 25% of net earnings), Solo 401(k)

Documentation is everything

The IRS can disallow any deduction you can’t substantiate. We set up your QuickBooks Online to categorize expenses correctly throughout the year — so when tax season arrives, every deduction is already documented and defensible.

Frequently asked questions

What is the self-employment tax deduction?

Self-employed individuals can deduct 50% of their self-employment tax from their gross income on Schedule 1. This deduction reduces your adjusted gross income (AGI) but not your SE tax itself.

Can I deduct my home office as a 1099 contractor?

Yes, if you use part of your home regularly and exclusively for business. You can use the simplified method ($5/sq ft, up to 300 sq ft) or the regular method (actual expenses × business-use percentage). The regular method typically yields a larger deduction.

How do I deduct my vehicle as a self-employed contractor?

You can use the standard mileage rate (67 cents/mile for 2024) or actual expenses (gas, insurance, depreciation × business-use %). You must keep a mileage log with date, destination, business purpose, and miles driven for every business trip.

Can 1099 contractors deduct health insurance premiums?

Yes. Self-employed individuals can deduct 100% of health, dental, and vision insurance premiums paid for themselves, their spouse, and dependents — as long as you were not eligible for employer-sponsored coverage.

What records do I need to keep for 1099 deductions?

Keep receipts, invoices, bank statements, and credit card statements for all business expenses. For vehicles, maintain a mileage log. For home office, document square footage. The IRS generally requires records for 3 years from the filing date.

Stop overpaying on your 1099 taxes

We’ll review your situation, identify every deduction you qualify for, and keep your books clean so nothing gets missed at tax time.