Arizona Paycheck Calculator

Arizona state income tax

Arizona has a flat income tax of 2.5% on taxable income. Employees choose a withholding percentage on Form A-4 (0.5% to 3.5% of gross pay); new hires who skip the form default to 2.0%.

Local taxes & deductions

Arizona cities do not levy income tax on wages. Because A-4 withholding is a percentage of gross pay, it may not exactly match your 2.5% liability — check your choice if you owed or got a large refund last year.

Federal tax & FICA

On Arizona's average pay of about $72,000 a year (BLS QCEW, 2024) federal income tax and FICA make up roughly 87% of withholding; the 2.5% state tax is a small slice. FICA is 6.2% Social Security up to the $184,500 2026 wage base plus 1.45% Medicare on all wages.

Live in one state, work in another?

Arizona has reciprocity with California, Indiana, Oregon and Virginia. Residents of those states working in Arizona file Form WEC with their employer to stop Arizona withholding and pay only home-state tax.

Full list of agreements and exemption forms in our state tax reciprocity guide.

Arizona paycheck FAQ

Which Form A-4 percentage should I choose?

For most single filers, 2.0% of gross pay roughly matches the 2.5% flat tax after the standard deduction. Lower earners can choose 0.5%–1.0%; higher earners with other income may pick 2.5% or more.

Do Arizona cities charge income tax?

No. Phoenix, Tucson and other Arizona cities fund services through sales and property taxes, so only the state's 2.5% income tax is withheld.

Arizona income tax brackets

Approximate single-filer brackets; thresholds are indexed each year. The calculator above applies an effective rate rather than bracket-by-bracket state math.