A Research-Based Guide to Arizona Finances

Six things that changed or were confirmed for 2026

Arizona did not tinker at the edges this year. Several figures that shape a check moved at once, so it helps to lay them out in the order they take effect.

1. January 1, 2026: the minimum wage rose to $15.15 an hour. The increase comes from the Fair Wages and Healthy Families Act, which also keeps earned paid sick time in place. A few cities layer their own wage ordinances on top, so the statewide figure is a floor rather than a ceiling.
2. Tax year 2026: one rate, 2.5%, for everyone. The old multi-bracket tables are obsolete. Any chart that still shows several Arizona rates describes a system that no longer exists.
3. The unemployment insurance wage base stays at $8,000 and new employers pay 2.0% on it for at least two calendar years. This is an employer cost that never touches the employee's deduction column.
4. Social Security applies to the first $184,500 of covered wages at 6.2%, with Medicare at 1.45% on every dollar.
5. Estimated payment calendar: the Department of Revenue lists April 15, June 15 and September 15, 2026, then January 15, 2027, for people whose withholding will not cover the year.
6. Still pending: the 2026 Form 140 instructions. As of late August 2026 the most recent published package is for tax year 2025, with a $15,750 standard deduction for single filers. Treat that figure as last year's until the new booklet appears.

Why the percentage on your A-4 is not your tax rate

Most states withhold from a table. Arizona lets the employee pick. Form A-4 offers seven percentages of gross taxable wages: 0.5%, 1.0%, 1.5%, 2.0%, 2.5%, 3.0% and 3.5%. You can also write in an extra dollar amount per check. If a new hire never turns in the form, the employer withholds 2.0% until one arrives.

That election is a prepayment, nothing more. The tax itself is 2.5% of Arizona taxable income, which starts from federal adjusted gross income and then absorbs Arizona additions, subtractions, the standard or itemized deduction, exemptions and credits. A worker expecting a large credit might comfortably choose 1.5%. A worker with side income that has no withholding of its own might choose 3.5% to stay clear of estimated payments. Neither choice changes what the return eventually says.

The gap between the two numbers is the most common source of confusion on Arizona checks. The Arizona paycheck calculator models the payroll side so an election can be compared against what you expect to owe in April.

One biweekly check in Phoenix

Take a medical assistant at a Phoenix clinic earning $24 an hour, working 40 hours a week, paid every two weeks and filing single. No A-4 was ever turned in, so the default 2.0% election applies. Here is how the check breaks down under 2026 rules.

Figures come from the Online Paystub Arizona paycheck calculator for 2026. Local taxes, health premiums and retirement contributions are not included.

Notice how small the Arizona line is next to the federal ones. Social Security and Medicare together take more than the state does and federal income tax is larger still. Notice also that a different A-4 election would move only the Arizona line; every other deduction would stay exactly where it is.

The tax at the register legally belongs to the seller

Arizona has no conventional sales tax. It has transaction privilege tax (TPT), which the state levies on the seller for the privilege of doing business. Sellers pass the cost along, so shoppers experience it as sales tax, but the duty to report and pay stays with the business.

The state retail rate is 5.6%. Counties and cities add their own layers and the combined figure runs from 5.6% up to 11.2% depending on where the sale is reported. The Department of Revenue republishes its rate tables every month, so a Phoenix shop and a shop two towns over can face different totals and the same shop can face a new total next quarter.

• Use tax mirrors TPT at 5.6%, plus any city use tax, when an out-of-state seller did not collect.
• Remote sellers and marketplace facilitators need a TPT license once Arizona sales pass $100,000 in the current or prior calendar year.
• A business with a storefront, inventory or staff in Arizona has physical nexus and gets no small-seller threshold at all.

None of this touches payroll. TPT is a tax on business receipts and should never show up as a deduction on an employee's earnings statement.

Residency, remote work and the 60-day exception

Full-year residents owe Arizona tax on income from every source, with domicile as the deciding factor. Nonresidents owe it only on Arizona-source income and file Form 140NR. Someone who moved during the year files Form 140PY and reports resident-period income plus any Arizona-source income from the nonresident months. There is no exit tax. The only questions are when residency changed and where the income came from.

Remote work follows the worker's body, not the employer's address. An Arizona resident working from a Phoenix home office for a company headquartered elsewhere is subject to Arizona withholding. An Arizona resident stationed out of state can ask the employer to withhold Arizona tax voluntarily. A nonresident who is physically in Arizona for fewer than 60 days in a year may qualify for a withholding exception when the statutory conditions are met. When two states tax the same dollars, a credit is generally available to soften the double hit.

Paydays, statements and what an employer may deduct

Arizona employers must set at least two fixed paydays each month, no more than 16 days apart, subject to narrow statutory exceptions. Employees paid by direct deposit or payroll card are entitled to a written or electronic statement of earnings and withholdings for each payment.

Deductions are tightly policed. An employer needs legal authority, a court order or the employee's prior written consent before diverting wages. Unemployment insurance is an employer tax, so it belongs in the employer's books rather than on the employee's statement.

Records need to last. Federal rules call for payroll records to be kept three years and the underlying wage calculations two years. Once actual figures are verified, the Arizona pay stub generator can lay out gross wages, the A-4 withholding line and federal taxes in a clean statement. If a code on that statement looks unfamiliar, most pay stub abbreviations follow a standard pattern across payroll systems.