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Law Library Resource Center
Instructions: How to complete the Petition to modify (change) a
child support order (Standard Process)
To complete this form you will need:
A copy of your current child support order.
A completed Affidavit of Financial Information.
While not required, it will be useful to have a new Child Support Worksheet
completed.
Fees to file: There are fees for filing petitions, responses, requests, motions, objections, and
various forms with the Court. Cash, AMEX/VISA/MasterCard debit or credit cards,
or money order made payable to the “Clerk of Superior Court” are acceptable forms
of payment.
Go online to http://clerkofcourt.maricopa.gov/fees.asp
or the Law Library Resource
Center for a list of current fees.
If you cannot afford the filing fee and/or the fee for having the papers served by the
Sheriff or by publication, you may request a deferral (payment plan) when you file
your papers with the Clerk of Superior Court. Deferral Applications are available at
no charge from the Law Library Resource Center.
Instructions: The letters next to the paragraphs below correspond to the letters in the Petition.
Match the letter in front of the instruction below to the letter in the Petition. Write
clearly. Use black ink.
(A) Fill in the information requested at top left for the person who is filing this form. If there is
a current court order declaring your address is protected, write “protected” on the line
provided for your address. Make sure the Clerk of Superior Court has valid contact
information on file.) Write the ATLAS number if you have one. The spaces marked
“representing” and “state bar number” are used only if an attorney is preparing this form.
(B) Fill in the section where it says Name of Petitioner/Party A and Name of Respondent/Party
B, exactly as it appears on your original Divorce, Paternity, or Child Support and/or Spousal
Maintenance papers. If your original case was a Paternity case, remember that the Plaintiff
is now called the Petitioner or Party A and the Defendant is now called the Respondent or
Party B. If this is the first court case you are filing in Maricopa County, write in your name
as Petitioner/Party A, and the other party as Respondent/Party B.