Self-Employment Tax Calculators Arizona

Arizona Self-Employment Tax Calculator

Calculate self-employment tax in Arizona. See 15.3% SE tax, federal + 2.5% state tax, quarterly estimates, and take-home pay for freelancers & contractors.

Use Calculator Free — No Sign-up Verified Data Editorially Reviewed Updated Feb 2026

Arizona Quick Facts

2.5% Income Tax Rate

0.62% Property Tax Rate

$72,581 Median Income

102.2 Cost of Living

How This Calculator Works

Calculation methodology and assumptions

Self-employment tax calculation for Arizona. Self-employment tax is 15.3% on 92.35% of net earnings (12.4% Social Security up to $168,600 + 2.9% Medicare with 0.9% additional Medicare tax over $200,000). Half of SE tax is deductible from income. Federal income tax uses 2026 brackets. Arizona state income tax applies at up to 2.5%. SEP-IRA/Solo 401(k) contributions reduce taxable income.

Key State Information

Arizona self-employment facts: State income tax up to 2.5% | LLC filing fee $50 | Annual LLC fee $0 | Median household income $72,581 | Cost of living index 102.2.

Standard financial formulas Pre-filled with real state data Estimates only — not financial advice

Data Source

IRS, Tax Foundation

View Original Source | Verified 2024-12-01 | Updated annually

Frequently Asked Questions

How much is self-employment tax in Arizona?

Self-employment tax is 15.3% nationally (not state-specific): 12.4% for Social Security and 2.9% for Medicare. However, it's calculated on 92.35% of net earnings. On top of that, Arizona charges state income tax up to 2.5%. Total effective tax rate for self-employed individuals is typically 25-40%.

When are quarterly tax payments due in Arizona?

Federal estimated tax payments are due April 15, June 15, September 15, and January 15. Arizona also requires quarterly state estimated payments. Late payments incur penalties. The IRS expects payments if you owe $1,000+ for the year.