Arizona’s Catholic Tuition Support Organization (CTSO) offers many different options for contributors to participate in the tax credit.

Payment Options

  1. Make an online credit card contribution on our safe and secure site.
  2. Call in your credit card or Electronic Fund Transfer (EFT) to 520-838-2558.
  3. Mail your check or credit card contribution by downloading this Printable Form.
  4. Call in your scheduled contributions to 520-838-2558 or download and mail CTSO the Scheduled Contribution Form.
  5. Employees may enroll in the DOT Employee Payroll Withholding program by downloading: DOT Payroll Withholding Form.

Tax Forms

The Arizona Department of Revenue has these on-line resources available regarding the private-school tax credit.

Form 323 Arizona Tax Credit Form, required to claim credit properly

Arizona State Tax Credit Law

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