Freelancer Tax Burden Research 2027: 50-State Analysis

Key Findings

• Location moves the total bill by thousands. At $100,000 of net profit, the highest-burden jurisdiction (OR) reaches 33.35% of profit while the lowest (AK) sits at 25.75% — a spread of 7.61%, or $7,607 per year.
• SE tax is the single largest component everywhere. At $100,000 in a zero-income-tax state, SE tax alone is $14,130, which is 54.88% of the entire tax bill — more than federal income tax, and far more than any state takes.
• Moving from California to Texas saves $7,146 per year at $100,000 of profit — 7.15% of net profit — under identical federal treatment, because the SE tax and federal income tax are the same in both states.
• The state-choice effect scales with income. The CA-vs-TX gap grows from $2,824at $50,000 of profit to $20,378 at $250,000 — the higher you earn, the more your state decision is worth.
• No-income-tax states average 25.75% total burden at $100,000, versus an all-state average of 29.39% — a 3.65% advantage before any cost-of-living differences are considered.
• Even the worst case is bounded. At $250,000 of profit, even California's effective total burden stays near 38.61% — the 92.35% factor, the half-SE deduction, and the standard deduction keep the combined rate well below the sum of the headline rates.

Methodology

The unit of analysis is a single-filer sole proprietor whose entire income is Schedule C net profit. We compute six quantities for every (state, income) pair:

1. SE tax base: net profit × 0.9235, the factor Schedule SE applies to approximate the employer-half treatment.
2. SE tax: Social Security component = min(base, $184,500) × 12.4%, plus Medicare component = base × 2.9% (uncapped).
3. Taxable income: profit − (SE tax ÷ 2, the above-the-line half-SE deduction) − $16,100 (2027 single standard deduction).
4. Federal income tax: computed with calcFederalTax() over the 2027 single brackets from IRS Rev. Proc. 2025-32.
5. State income tax (simplified): a representative flat rate per state × the federal taxable income. This is a deliberate simplification: real state codes use their own brackets, bases, deductions, and local add-ons.
6. Total burden and effective rate: SE tax + federal income tax + state income tax, divided by net profit.

Simplification assumptions, and how each one biases the results:

• Flat representative state rates: progressive states (CA, NY, NJ, etc.) are taxed here at their top representative rate, so our figures overstate the state tax that many filers actually pay.
• Single filing status only: married and head-of-household filers get larger standard deductions and wider brackets, so their effective rates would be lower than shown.
• No local income taxes: cities like New York City and Ohio municipalities levy additional income tax, so actual burdens in those places are higher than shown.
• No self-employed health insurance deduction: eligible freelancers can deduct premiums above the line, so real-world taxable income (and federal + state tax) would be lower than shown.
• No QBI (Section 199A) deduction: most freelancers qualify for up to 20% off qualified business income, so excluding it makes our effective rates overstated, particularly at higher incomes.
• No state-specific standard deductions or bases: states that start from AGI rather than federal taxable income, or offer their own deductions, will differ — the direction of the error varies by state.

Main Table: Effective Total Tax Burden by State and Income

Effective total burden rate = (SE tax + federal income tax + state income tax) ÷ net profit, for a single filer with only Schedule C income. The eight states below were chosen to span the range from the highest headline rates (CA, NY) to zero-income-tax states (TX, WA, FL).

Note: New Hampshire also displays a 0% rate in our simplified table (its interest-and-dividends tax was fully repealed), but it is conventionally excluded from the eight constitutional no-wage-tax states, so it does not enter the no-income-tax statistics below.

Where the Money Goes: No-Tax States vs. California vs. the Median State

The table below decomposes the total bill into its three components for each income tier. “No-income-tax states” shows the average across the eight zero-rate states; “Median state” is the jurisdiction ranked 26th of 51 by effective burden at that income level (IL at $100,000).

What This Means for Freelancers

Limitations

• State rates are simplified flat representatives; progressive states will tax many real filers less than shown, and states with local income taxes will tax them more.
• Only single filers with no other income are modeled; spouses, dependents, W-2 wages, and investment income all change the picture.
• Common deductions — self-employed health insurance, retirement contributions (SEP/Solo 401(k)), and QBI — are excluded, so effective rates here are higher than a well-advised freelancer's actual rates.
• The model ignores sales, property, and franchise taxes, which are higher in several no-income-tax states and partially offset the income-tax advantage.
• State tax applies to federal taxable income, whereas most states define their own base; the direction of the error varies by state.
• Figures are annual snapshots under 2027 parameters and do not account for mid-year moves, part-year residency, or credits.

Frequently Asked Questions