Give Without Affecting Take-Home Pay!

The Arizona withholding tax reduction law (A.R.S. 43-401) became effective in January, 2010, and it allows individuals to authorize their employer to send their state withholding tax amount to ACSTO  as a dollar-for-dollar tax credit donation!  It counts the same as a tax credit donation as if you gave it in one lump sum, but in smaller bites throughout the year and without affecting take-home pay.  

You can donate to ACSTO through your Arizona state tax withholdings with our simple sign-up process.  

  1. Check with your employer to see if this is a benefit they are willing to provide.
  2. Fill out a withholding pledge form and mail or fax it to ACSTO
  3. ACSTO will return an Authorization Form within one business week.  Review the form and fill any necessary information.  Sign and give pages three and four to your employer.
  4. Your employer, if they agree to participate, will reduce your state tax withholdings per pay period and will send that amount to ACSTO on your behalf (instead of sending it to the state).

Once it is set up, donations are automatic for the rest of the year, and will automatically stop once your donation limit is reached (a limit you indicate on our pledge form).

For Employees

Sign-Up / Pledge Form
Withholdings Brochure

For Employers

Donors/Employees don't have to worry about these forms. The employer will take care of this portion. New forms will be uploaded every year as they become available from the ADOR's website.

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Fillable A1-C Form


A1-QTC Form* (optional)

A1-QTC Instructions    ---

*The A1-QTC is a form you can use when sending in quarterly payment of withholdings reduced for the tax credits, or you can use your own substitute.

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    Contact Us

    ACSTO, Inc.

    PO Box 6580
    Chandler, AZ 85246

    • Office: 480.820.0403
    • Fax: 480.820.2027
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