Arizona Paycheck Calculator

Arizona's flat tax arrived after an unusually contested few years. In 2020 voters approved Proposition 208, which added a 3.5% surcharge on high incomes to fund education, briefly giving Arizona a top rate approaching 8%. The Arizona Supreme Court struck the surcharge down in 2021.

In parallel, the legislature passed a package collapsing Arizona's four graduated brackets into a flat rate, with implementation tied to revenue targets. Those targets were met ahead of schedule, and the 2.5% flat rate took effect for the 2023 tax year — a year earlier than originally expected.

For employees the practical effect is simplicity and predictability. There is no bracket creep, a bonus is taxed at the same rate as base salary, and the state portion of any pay change is trivially easy to calculate: multiply the gross change by 0.025.

Arizona's standard deduction is set at $8,350 for single filers and $16,700 for married couples filing jointly. Combined with a 2.5% rate, this produces genuinely small state tax bills — a single filer on $75,000 owes roughly $1,700 to Arizona, against several thousand in a typical mid-rate state.

Arizona also offers an unusual range of tax credits, several of them dollar-for-dollar rather than deductions. Contributions to qualifying charitable organisations, public school extracurricular fees and private school tuition organisations all generate credits that directly reduce the tax owed. For Arizona taxpayers who use them, the effective rate can fall well below 2.5%.

Arizona does not tax Social Security benefits. Most other retirement income is taxable at the flat rate, with a modest exclusion for certain government and military pensions.

No Arizona city or county levies an income tax. Phoenix, Tucson, Mesa and Scottsdale withhold only the state rate, so your paycheck does not depend on where in Arizona you live or work.

Arizona funds itself substantially through transaction privilege tax — a sales tax levied on sellers rather than buyers, though passed through in practice. Combined state and local rates commonly reach 8% to 9%, among the higher figures nationally, so the low income tax is partly offset for households that spend a large share of their income.

Property taxes, by contrast, are below the national average, which makes Arizona particularly attractive to homeowners and retirees relative to states like Texas that fund a no-income-tax model through property. The overall burden lands among the lowest in the country.