Arizona Payroll Tax Registration for Employers: JT-1 Filing and Deposits

Arizona payroll tax registration runs through a single form, the Arizona Joint Tax Application (Form JT-1), filed before you issue the first paycheck. One submission opens both of the accounts an Arizona employer needs: state income tax withholding with the Department of Revenue, and unemployment insurance with the Department of Economic Security. Filing online through AZTaxes.gov is the fastest route, and there is no fee for the withholding or unemployment portions of the application.¹

Who Has to Register

Registration is tied to two separate obligations, with different triggers. Most employers hit both.

For state income tax withholding, the trigger is simple: any employer paying wages for work physically performed in Arizona must withhold Arizona income tax, no matter where the company is headquartered. There is no minimum wage threshold and no employee-count floor. One employee working in the state is enough.²

For unemployment insurance, coverage begins when either of two thresholds is met: paying $1,500 or more in total wages during any calendar quarter, or having at least one worker on payroll for any part of a day in each of 20 different weeks within the current or preceding calendar year. The 20 weeks do not have to be consecutive.³ A single full-time hire will cross one of those lines within a few months, so if you have Arizona employees, plan on registering for UI as well.

What to Gather Before You Open the Application

Have the following ready. Missing items will stall the filing:

Your Federal Employer Identification Number (FEIN) from the IRS. In Arizona, your FEIN also serves as your state withholding ID number, so there is no separate withholding number to apply for or wait on.⁴⁵
Your legal business name, matching the Arizona Corporation Commission or Secretary of State record exactly.
Full owner and officer details: names, titles, Social Security numbers, and home addresses for every owner, partner, or corporate officer.⁶
Your Arizona business address (the physical location where you operate) and a mailing address for tax correspondence.
The date you first hired employees in Arizona and the date you first paid wages.⁶
An estimate of total annual wages. Arizona uses this number to set your initial withholding deposit frequency.

Filing the JT-1

Form JT-1 is a shared application used by the Department of Revenue and the Department of Economic Security. It covers transaction privilege tax, withholding, and unemployment insurance on one document. Under the license type section, check the box for Withholding/Unemployment Tax. If you are not selling taxable goods or services, you can leave the transaction privilege tax sections blank.⁷

The form asks you to pick your business structure from a list that includes sole proprietorship, partnership, corporation, LLC, and several other options.⁶

Online

File through AZTaxes.gov. Online submissions process faster, and you receive an immediate confirmation receipt. Save it. The receipt is your temporary proof of registration while the application is reviewed.¹

By Mail

If you cannot file online, download the fillable PDF from the Department of Revenue website and mail the completed form to the License and Registration Section in Phoenix.⁸ Paper applications take longer because staff must key the information in by hand.

Cost

There is no fee to register for withholding or unemployment taxes. If you also apply for a transaction privilege tax license on the same form, that carries a $12 state fee per location, plus a possible municipal license fee of up to $50.⁹

What You Get Back

The Department of Revenue and the Department of Economic Security review your application separately, even though you filed a single form. Each agency notifies you independently when its review is complete.¹⁰

On the withholding side, there is no new account number to wait on. Because your FEIN doubles as your Arizona withholding ID, you can begin withholding from paychecks as soon as the Department of Revenue confirms your registration.⁵

On the unemployment side, the Department of Economic Security mails a Determination of Unemployment Insurance Liability. That document lists your UI coverage start date, your assigned tax rate, and your eight-digit Arizona UI employer account number.¹⁰ New employers are assigned a UI rate of 2.0% on the first $8,000 in wages per employee for 2026.¹¹ Your rate adjusts over time based on your claims experience.

What You Owe Once You’re Registered

Registering opens the accounts. Filing keeps them in good standing.

Withholding Deposit Schedule

Arizona assigns your withholding deposit frequency based on average withholding over the previous four quarters:⁵

Annual filing if your average withholding is under $200 per quarter.
Quarterly filing if the average falls between $200 and $1,500.
Monthly or more frequent filing if the average is above $1,500, matching your federal withholding deposit schedule.

New employers are placed on a schedule based on the wage estimate they provided on the JT-1. If actual payroll comes in higher than the estimate, the state can move you to a more frequent schedule.

Annual Reconciliation (Form A1-R)

Every Arizona employer must file Form A1-R by January 31 of the following year. It reconciles total compensation and Arizona income tax withheld for each employee during the calendar year. Copies of all W-2s reporting Arizona wages or Arizona tax withheld must be attached, and those attachments have to be filed electronically.¹²

Quarterly Unemployment Reports

UI reports are due April 30, July 31, October 31, and January 31, covering the preceding quarter. A late report carries a penalty of one-tenth of one percent of total wages paid during the quarter, with a minimum of $35 and a maximum of $200 per report.¹³

New Hire Reporting

Every newly hired or rehired employee must be reported to the Arizona New Hire Reporting Center within 20 days of the hire date.¹⁴ This is a separate submission from your tax filings and is a common gap for small employers.

The Penalty for Skipping or Falling Behind

Arizona treats withheld income tax as money held in trust for the state. If you withhold from employee paychecks and fail to remit it on time, the Department of Revenue can add a penalty of 25% of the amount owed, absent reasonable cause.¹⁵ That is the figure to keep in mind when deciding whether to put off registration or a deposit. The UI late-report penalty on top of it is smaller per filing, but it compounds across quarters and draws closer attention from DES.

1
Arizona Department of Revenue. Applying for a TPT License
2
Arizona Department of Revenue. Arizona Withholding Tax
3
Arizona Legislature. Arizona Code 23-613 – Employer
4
Internal Revenue Service. Get an Employer Identification Number
5
Arizona Department of Revenue. Employer Withholding Filing Obligations
6
Arizona Department of Revenue. Arizona Joint Tax Application
7
Arizona Department of Revenue. Joint Tax Application for a TPT License
8
Arizona Department of Revenue. Mailing Addresses – Section: TPT License and Registration
9
Arizona Legislature. Arizona Code 42-5005 – Transaction Privilege Tax and Municipal Privilege Tax Licenses Fees Renewal Revocation Violation Classification
10
Arizona Department of Economic Security. Applying for an Unemployment Insurance Tax Account Number
11
Arizona Department of Economic Security. Unemployment Insurance Tax Rate Chart
12
Arizona Department of Revenue. Form A1-R Instructions
13
Arizona Legislature. Arizona Revised Statutes 23-723 – Penalties for Failure to File Reports
14
Arizona Department of Economic Security. Employer Requirements – Record Keeping
15
Arizona Legislature. Arizona Code 42-1125 – Civil Penalties Definition