1099 Tax Calculator Arizona 2026
Arizona has one of the lowest flat income tax rates in the nation at 2.5%, with a standard deduction matching the federal amount ($15,000 single / $30,000 married filing jointly). This makes Arizona a tax-friendly state for self-employed workers compared to high-tax states like California. Use the calculator below to estimate your 2026 federal + state + SE tax.
Net income after business expenses
Enter your income to see your tax breakdown
How Arizona taxes self-employment income
Arizona has a flat 2.50% state income tax.
Arizona has a flat 2.5% individual income tax rate. The state offers a $100 per dependent tax credit (under 17) and $25 per dependent (17+) in lieu of a personal exemption, with phaseouts above $200,000 (single) / $400,000 (MFJ) federal AGI.
Federal tax also applies
Regardless of state, all 1099 contractors and self-employed workers in Arizona owe federal income tax and self-employment tax. SE tax is 15.3% on net earnings (12.4% Social Security up to $184,500 in 2026, plus 2.9% Medicare with no cap). Federal income tax follows the standard bracket structure (10-37%).
The calculator above includes federal, SE, and Arizona state tax in one estimate, and breaks down quarterly estimated payments due April 15, June 15, September 15, 2026, and January 15, 2027.