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Freelance Tax Deduction Calculator
Estimate your self-employed tax deductions for home office, mileage, equipment, insurance, and retirement. Free write-off calculator for freelancers and 1099 contractors in 2026.
Enter the minimum numbers needed to get a result.
Updated live as you type.
Planning estimate only. It does not include taxes, overhead allocation, depreciation, discounts, or other business-specific adjustments.
What this calculator means
Freelance Tax Deduction: Self-employed tax deductions reduce taxable income for freelancers and 1099 contractors. Key deductions include home office, vehicle expenses, equipment, health insurance premiums, and retirement contributions, which can reduce taxable income by $15K-$50K+ annually.
Formula and example
Deductions: home office ($5/sq ft × sq ft), mileage (miles × $0.67), equipment (full cost), health insurance (100%), retirement (full). Taxable = Income − Total Deductions. Savings = Deductions × 24% (marginal rate estimate).
$80K 1099 income, 150 sq ft home office=$750, 5K miles=$3,350, $3K equip, $6K insurance, $5K retirement: total deductions $18,100. Taxable income drops from $80K to $61,900. Estimated tax savings at 24%: $4,344.
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Methodology & assumptions
Last updated: 2026-06-19Calculation method
Estimates 5 major self-employed deductions: (1) Home office — simplified method at $5/sq ft (max 300 sq ft); (2) Business mileage — IRS standard mileage rate; (3) Equipment & supplies — 100% deduction in year of purchase; (4) Health insurance — above-the-line deduction; (5) Retirement contributions — SEP IRA or Solo 401(k). Does not include meals, travel, continuing education, or QBI deduction.
Data sources
Uses the numbers you enter and standard small-business finance formulas. Benchmark comparisons use HustleFin industry benchmark pages where available.
Limitations
Uses simplified home office deduction (not actual expense method). Mileage rate estimated at 67 cents — actual IRS rate changes annually. Does not apply Section 179 or depreciation to equipment. Consult a CPA for exact calculations. Deductions are estimates, not tax filing numbers.
Input definitions
- Annual self-employment income: Total freelance or 1099 income before deductions.
- Home office square footage: Space used exclusively and regularly for business. IRS simplified: $5/sq ft up to 300 sq ft.
- Business miles driven: Total business miles. IRS rate changes annually (67 cents/mile in 2024).
- Equipment & supplies: Computers, cameras, tools, software, office supplies used for business.
- Health insurance premiums: Self-employed health insurance is 100% deductible above the line.
- Retirement contributions: SEP IRA (up to 25% of net earnings) or Solo 401(k) contributions.
Frequently asked questions
What is the biggest tax deduction for freelancers?+
For most freelancers, the home office deduction and health insurance premiums are the largest. Health insurance is fully deductible above the line. A dedicated home office at $5/sq ft (simplified) plus $6K+ in premiums can immediately reduce taxable income by $6,750-$7,500+. Retirement contributions (SEP IRA) can add another $10K-$20K+ in deductions.
How much can I deduct for a home office?+
Two methods: (1) Simplified — $5 per square foot, up to 300 sq ft = max $1,500/year. (2) Actual expense — percentage of rent/mortgage interest, utilities, insurance based on office square footage ÷ total home sq ft. The space must be used exclusively and regularly for business. A dining table doesn't qualify; a dedicated room does.
What business expenses can I write off as a freelancer?+
Home office, business mileage (IRS rate), equipment & software, health insurance premiums, retirement contributions, professional services (legal, accounting), continuing education, business travel (50% meals), internet & phone, and 50% of self-employment tax itself. Track everything year-round — don't wait until tax season.
Can I deduct my laptop if I use it for both personal and business?+
Only the business-use percentage. If you use your laptop 70% for freelance work and 30% for personal use, you can deduct 70% of the cost. For items used 100% for business (dedicated work computer, specialized software), deduct the full cost. Keep documentation of your usage estimate.
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