99T: Exempt Organization Business Income Tax Return (2024)

Who files this form

Form 99T is Arizona’s Exempt Organization Business Income Tax Return. It reports an exempt organization’s unrelated business taxable income and Arizona tax.

The form includes apportionment calculations for multistate organizations. It does not state filing thresholds or detailed rules about which organizations must file.

What you'll need

Have the following information available:

• The organization’s name, EIN, address, telephone number, and date Arizona operations began.
• Its tax-year dates, unrelated business activities, and activity codes.
• Unrelated business taxable income and the federal return type filed, such as Form 990-T.
• Records of estimated tax payments, extension payments, and any payments or overpayments relevant to an amended return.

Depending on the return, you may also need:

• Arizona Form 300 for nonrefundable tax credits and credit recapture amounts.
• Arizona Schedule ACA for qualifying air carriers.
• Arizona Schedule MSP, which qualifying multistate service providers must include.
• Property, payroll, sales, and other gross receipt amounts within Arizona and everywhere for multistate apportionment. Schedule A is limited to unrelated business amounts.

How to file

1. Select calendar year 2024 or enter the fiscal-year dates. Check whether the return is original or amended, and mark other applicable boxes.
2. Complete the organization information, income, tax, payment, and balance-due or overpayment lines. Complete the applicable apportionment information if the organization operates in multiple states.
3. Have an officer sign and date the declaration on page 2 and enter their title. Complete the paid preparer section if applicable.
4. Mail the return to:

Arizona Department of Revenue

PO Box 52153

Phoenix, AZ 85072-2153

Common mistakes

• Do not mark the area labeled “Revenue Use Only.”
• Qualifying air carriers must use Arizona Schedule ACA.
• Qualifying multistate service providers must include Arizona Schedule MSP.
• If you check “Sales Factor Only” on page 1, line D, complete only Schedule A, Section A3, lines a through f.
• Keep Schedule A limited to unrelated business amounts, and round Columns A and B to the nearest dollar.

Questions people ask

How is the tax on line 6 calculated?

Enter 4.9% of line 5 or $50, whichever is greater. Later lines account for credit recapture, nonrefundable credits, and payments.

Can I use this form for a fiscal year?

Yes. The 2024 form has spaces for a fiscal year beginning in 2024 and ending in a later year. It also has a checkbox for a fiscal-year return based on a 52/53-week taxable year.

Where do I report an extension payment?

Report an extension payment made with Arizona Form 120/165EXT or online on line 13. The form also has a checkbox to indicate that the return is filed under an extension.

Can I apply an overpayment to next year’s estimated tax?

Yes. Line 25 lets you apply an amount from line 24 to 2025 estimated tax. Line 26 shows the amount to be refunded after subtracting line 25 from line 24.

Official sources

• https://azdor.gov/forms