How long after an Arizona custody order can I ask the court to change it?

One year, measured from the date of the decree itself under A.R.S. 25-411(A). The bar applies to legal decision-making and parenting time alike. Nothing in the statute restarts the clock for a later informal agreement, and no second clock keyed to a previous motion appears anywhere in the chapter.

Do I have to prove a change in circumstances in Arizona?

A.R.S. 25-403(A) directs the court to decide legal decision-making and parenting time on petition for modification by the child's best interests. The statute refers to a change in circumstances twice, at 25-411(C) and 25-411(L), without setting it out as a standalone element, so the test is shaped by case law.

Can an Arizona parent move away with the child while an objection is pending?

A.R.S. 25-408(F) allows a temporary relocation on less than forty-five days' notice only for health, safety, employment or eviction reasons. A parent sharing joint legal decision-making and substantially equal parenting time needs both parents to execute a written agreement first. Sole or primary-residence parents do not.

What happens if the other Arizona parent never responds to a relocation notice?

A.R.S. 25-408(C) gives the nonmoving parent thirty days after notice to petition the court to prevent relocation. After that window, any petition or application to prevent the move may be granted only on a showing of good cause. Silence therefore does not block a properly noticed relocation.

Is there an Arizona age at which the child chooses which parent to live with?

No. A.R.S. 25-403(A)(4) makes the child's wishes a best-interest factor only if the child is of suitable age and maturity. Arizona sets no number: the words years of age appear nowhere in the legal decision-making chapter, and the wishes never bind the judge.

Can an Arizona judge refuse a hearing on my modification petition?

Yes. A.R.S. 25-411(M) says the court shall deny the motion unless it finds that adequate cause for hearing the motion is established by the pleadings. That screen is in the statute, not in case law, and 25-411(O) removes it where you seek only to modify or clarify parenting time.

Does past domestic violence affect an Arizona modification case?

A.R.S. 25-411(L) keeps a parent who previously failed to rebut the mandatory presumption in 25-403.03(D) subject to that same presumption in any later modification proceeding, regardless of what the new pleadings allege. The court resolves it as a preliminary matter alongside the change-of-circumstances question.

How much does filing an Arizona custody modification cost?

The Judicial Branch statewide schedule effective December 28, 2024 sets a postadjudication petition in a domestic relations case at $87 base plus a $15 Domestic Relations Education and Mediation Fund surcharge, $102 in total. The schedule tells filers to check the specific court for additional local fees.

How to Modify Child Custody in Arizona

Reviewed by DocDraft Legal Team · Arizona · Last updated October 7, 2026

Arizona is a state where the calendar itself can stop a filing. A.R.S. 25-411(A) says a person shall not make a motion to modify a legal decision-making or parenting time decree earlier than one year after its date. Changing child custody here means asking the Superior Court of Arizona that issued your existing order to change it because something significant has shifted since that order was made. Arizona replaced the word custody by statute: A.R.S. 25-401 calls it legal decision-making and parenting time, and those are the words on the petition you will file. The one-year bar covers both of them, not just decision-making. Three doors open it early. Affidavits giving reason to believe the child's present environment may seriously endanger the child's physical, mental, moral or emotional health let the court take the motion inside the year. Where your order is a joint legal decision-making order, you may petition at any time on evidence of domestic violence, spousal abuse or child abuse since entry, and six months after entry on the other parent's failure to comply with the order. Once the door is open, A.R.S. 25-411(M) requires an affidavit or verified petition with detailed facts, and the court must deny the motion unless the pleadings establish adequate cause for a hearing. A.R.S. 25-411(O) turns that screen off if you ask only to modify or clarify parenting time. Arizona prescribes no statewide modification form, so you use your county superior court's petition. The statewide post-decree fee is $102. Attorney review of your filing is available through DocDraft.

Find out where you stand in Arizona

What is prompting the change to your custody order?

DocDraft provides document preparation, not legal advice.

Is there a waiting period to modify custody in Arizona?

Yes. A.R.S. 25-411(A) bars a motion to modify a legal decision-making or parenting time decree earlier than one year after its date. The court may take the motion sooner on affidavits giving reason to believe the child's present environment may seriously endanger the child's physical, mental, moral or emotional health.

Can an Arizona parent file sooner than one year after a joint order?

Two shorter routes exist, both limited to a joint legal decision-making order. A parent may petition at any time on evidence of domestic violence, spousal abuse or child abuse occurring since entry of that order, and six months after entry on the other parent's failure to comply with its provisions (A.R.S. 25-411(A)).

How much notice must an Arizona parent give before moving with a child?

At least forty-five days' advance written notice, by certified mail with return receipt requested, before relocating the child outside Arizona or more than one hundred miles within Arizona. A.R.S. 25-408(A) applies this only where both parents hold joint legal decision-making or parenting time and both live in Arizona.

Which court changes a legal decision-making order in Arizona?

The Superior Court of Arizona in the county handling the case, filed into the existing case number. A.R.S. 25-402(B)(1) covers a parent seeking legal decision-making or parenting time on modification of an earlier decree, and 25-402(A) requires the court to confirm its interstate authority first.

Arizona legal decision-making modification at a glance

Modifying child custody in Arizona means asking the Superior Court of Arizona that issued your existing order to change it because something significant has shifted since then. Arizona calls it legal decision-making and parenting time, not custody (A.R.S. 25-401). The distinctive Arizona fact is that the one-year rule in A.R.S. 25-411(A) is a genuine bar on making the motion, and it covers parenting time as well as decision-making. The endangerment affidavit lifts it. A joint legal decision-making order also carries two shorter clocks: immediate on post-order abuse evidence, six months on the other parent's noncompliance. Where Arizona splits internally is the screen, not the clock. A.R.S. 25-411(M) makes the court deny a motion without adequate cause in the pleadings, and 25-411(O) removes that screen for parenting-time-only requests.

Seven months after a Tucson joint order, with a Flagstaff move coming

Picture a joint legal decision-making order entered in Pima County seven months ago, with a co-parent who has missed the Sunday exchange eleven times. The one-year bar in A.R.S. 25-411(A) would normally block a motion now, but because the order grants joint legal decision-making, the six-month noncompliance clock has already run, so you may petition on the other parent's failure to comply. You log every missed exchange with dates into a verified petition, because A.R.S. 25-411(M) lets the judge deny the motion on the pleadings alone. A job offer in Flagstaff adds a second deadline: that move is more than one hundred miles within Arizona, so A.R.S. 25-408(A) wants forty-five days' certified-mail notice first. Attorney review of your filing is available through DocDraft.

Relevant Laws

A.R.S. 25-411 (one-year bar, endangerment affidavit, adequate cause)

Bars a motion to modify a legal decision-making or parenting time decree earlier than one year after its date, lifts the bar on endangerment affidavits, adds immediate and six-month routes for joint legal decision-making orders, requires an affidavit or verified petition with detailed facts, and exempts parenting-time-only requests from that requirement.

A.R.S. 25-408 (relocation notice, forty-five days and one hundred miles)

Requires at least forty-five days' advance written notice by certified mail before relocating the child outside Arizona or more than one hundred miles within it, gives the nonmoving parent thirty days to petition against the move, places the best-interests burden on the relocating parent, and switches the duty off where an order dated within one year already covers relocation.

A.R.S. 25-403 (best interests on petition for modification)

Directs the court to determine legal decision-making and parenting time, originally or on petition for modification, by the child's best interests, and lists eleven factors. Factor four makes the child's wishes relevant only if the child is of suitable age and maturity, with no numeric age anywhere in the section.

A.R.S. 25-401 (legal decision-making and parenting time defined)

Defines legal decision-making as the right and responsibility to make all nonemergency legal decisions for a child, and says that for interpreting federal law, treaties and other states' statutes legal decision-making means legal custody. Also defines joint and sole legal decision-making and parenting time.

Arizona Judicial Branch superior court filing fee schedule

The statewide schedule effective December 28, 2024 under Administrative Order 2024-210 lists a postadjudication petition in a domestic relations case at $87 base plus a $15 surcharge for a $102 total, reflects A.R.S. 12-284 as increased under the Arizona Code of Judicial Administration, and tells filers to check the specific court for additional local fees.

Regional Variances

Arizona legal decision-making modification levers at a glance

Waiting period before you may file

One year from the date of the decree, and it is a true bar on making the motion rather than a paperwork trigger (A.R.S. 25-411(A)). It reaches legal decision-making and parenting time equally. Escape hatch: affidavits giving reason to believe the child's present environment may seriously endanger the child's physical, mental, moral or emotional health.

Shorter clocks for a joint order

Two extra routes exist only where the order is a joint legal decision-making order. A parent may petition at any time on evidence of domestic violence under A.R.S. 13-1201 or 13-1204, spousal abuse or child abuse occurring since entry, and six months after entry on the other parent's failure to comply with the order.

Standard to change the order

Best interests of the child on petition for modification under A.R.S. 25-403(A), with eleven listed factors. Change in circumstances is referenced at 25-411(C) and 25-411(L) rather than codified as a standalone element. Parenting time alone has a lighter test at 25-411(J), but restricting parenting time requires a finding of serious endangerment.

Relocation notice

Forty-five days' advance written notice by certified mail with return receipt requested, triggered by a move outside Arizona or more than one hundred miles within Arizona (A.R.S. 25-408(A)). The duty applies only while both parents hold joint legal decision-making or parenting time and both reside in Arizona, and 25-408(D) disapplies it where an order or written agreement dated within one year of the move already provides for relocation.

Relocation mechanism

Notice then object. The nonmoving parent has thirty days to petition to prevent the move, and after that only good cause will support one (A.R.S. 25-408(C)), so silence does not block a properly noticed relocation. Two twists: the relocating parent carries the best-interests burden under 25-408(G), and a sub-forty-five-day emergency move by a parent with joint decision-making and substantially equal parenting time needs both parents to execute a written agreement under 25-408(F)(2).

Court

The Superior Court of Arizona in the county handling the case, filed into the existing case number. A.R.S. 25-402(B)(1) names the parent requesting legal decision-making or parenting time on modification of an earlier decree, and 25-402(A) requires the court to confirm its authority to the exclusion of other states, tribes and nations first.

Forms

No statewide form. The Judicial Branch Self-Service Center publishes exactly eight statewide family law packets, covering summary consent decree, establishing child support, child support modification, paternity, and dissolution or legal separation with and without children. None covers modification of legal decision-making or parenting time, so the petition comes from the county superior court. Maricopa County publishes drmc11f with a parenting plan and an affidavit regarding minor children.

Filing fee

$102 statewide for a postadjudication petition in a domestic relations case, being an $87 base fee plus a $15 Domestic Relations Education and Mediation Fund surcharge, on the Judicial Branch schedule effective December 28, 2024. The $74 figure printed in A.R.S. 12-284(A) is the un-escalated statutory base and is superseded. Fee waiver and deferral are available.

Procedural screen

A statutory adequate cause screen. A.R.S. 25-411(M) requires an affidavit or verified petition setting forth detailed facts, allows opposing affidavits, and directs that the court shall deny the motion unless the pleadings establish adequate cause for a hearing. A.R.S. 25-411(O) removes that requirement entirely where the relief sought is modification or clarification of parenting time and not a change of legal decision-making.

Child's wishes

No age. A.R.S. 25-403(A)(4) counts the wishes of the child as to legal decision-making and parenting time only if the child is of suitable age and maturity. The phrase years of age does not appear in the chapter, so any claim that Arizona fixes the child's say at a particular birthday is wrong.

Suggested Compliance Checklist

Pull the date off your current decree

Before anything else days after starting

A.R.S. 25-411(A) counts the one-year bar from the date of the legal decision-making or parenting time decree itself. Find that date and write it down, because it decides whether you file straight away or need an endangerment affidavit or one of the joint-order routes.

Check whether your order is a joint legal decision-making order

Before you draft days after starting

The two shorter clocks in A.R.S. 25-411(A) exist only for a joint legal decision-making order. Confirm the designation in your decree, then date any post-order abuse evidence or any pattern of noncompliance against the immediate and six-month routes respectively.

Decide between parenting time only and legal decision-making

Before you draft days after starting

A.R.S. 25-411(O) exempts a request to modify or clarify parenting time, with no change of legal decision-making, from the affidavit and adequate cause requirement in subsection M. Narrowing or broadening your request changes the screen you face, so choose deliberately rather than by default.

Download your county superior court's modification petition

Once you know which relief you want days after starting

Arizona prescribes no statewide form for this. Use your own county's packet, such as Maricopa County form drmc11f, Petition to Modify Legal Decision-Making, Parenting Time and Child Support, together with its parenting plan and affidavit regarding minor children. Do not substitute the statewide child support modification packet.

Build the detailed facts into the affidavit or verified petition

Before filing days after starting

A.R.S. 25-411(M) requires detailed facts supporting the requested modification, and the judge can deny the motion on the pleadings alone. Attach dated records: school and medical notes, exchange logs, messages, police reports. Attorney review of your filing is available through DocDraft.

File with the superior court clerk and pay $102

Promptly, since the adequate cause ruling comes first days after starting

File into the same case number at the clerk of the superior court that issued your order. The Judicial Branch schedule effective December 28, 2024 sets $87 base plus a $15 surcharge for a postadjudication domestic relations petition. Ask about additional local fees, and about fee waiver or deferral.

Serve the other parent with the affidavit or verified petition

As required by the Arizona Rules of Family Law Procedure days after starting

A.R.S. 25-411(M) requires notice together with a copy of your affidavit or verified petition, and the other parent may file opposing affidavits. Keep following the existing order while the judge reads the pleadings, because a unilateral departure is an enforcement problem and can count against you.

Send relocation notice forty-five days out if a move is involved

At least 45 days before the move days after starting

If you plan to relocate the child outside Arizona or more than one hundred miles within it, A.R.S. 25-408(A) and (B) require at least forty-five days' advance written notice by certified mail, return receipt requested. The court must sanction a parent who fails to comply without good cause.

Task	Description	Document	Days after starting
Pull the date off your current decree	A.R.S. 25-411(A) counts the one-year bar from the date of the legal decision-making or parenting time decree itself. Find that date and write it down, because it decides whether you file straight away or need an endangerment affidavit or one of the joint-order routes.	-	Before anything else
Check whether your order is a joint legal decision-making order	The two shorter clocks in A.R.S. 25-411(A) exist only for a joint legal decision-making order. Confirm the designation in your decree, then date any post-order abuse evidence or any pattern of noncompliance against the immediate and six-month routes respectively.	-	Before you draft
Decide between parenting time only and legal decision-making	A.R.S. 25-411(O) exempts a request to modify or clarify parenting time, with no change of legal decision-making, from the affidavit and adequate cause requirement in subsection M. Narrowing or broadening your request changes the screen you face, so choose deliberately rather than by default.	-	Before you draft
Download your county superior court's modification petition	Arizona prescribes no statewide form for this. Use your own county's packet, such as Maricopa County form drmc11f, Petition to Modify Legal Decision-Making, Parenting Time and Child Support, together with its parenting plan and affidavit regarding minor children. Do not substitute the statewide child support modification packet.	-	Once you know which relief you want
Build the detailed facts into the affidavit or verified petition	A.R.S. 25-411(M) requires detailed facts supporting the requested modification, and the judge can deny the motion on the pleadings alone. Attach dated records: school and medical notes, exchange logs, messages, police reports. Attorney review of your filing is available through DocDraft.	-	Before filing
File with the superior court clerk and pay $102	File into the same case number at the clerk of the superior court that issued your order. The Judicial Branch schedule effective December 28, 2024 sets $87 base plus a $15 surcharge for a postadjudication domestic relations petition. Ask about additional local fees, and about fee waiver or deferral.	-	Promptly, since the adequate cause ruling comes first
Serve the other parent with the affidavit or verified petition	A.R.S. 25-411(M) requires notice together with a copy of your affidavit or verified petition, and the other parent may file opposing affidavits. Keep following the existing order while the judge reads the pleadings, because a unilateral departure is an enforcement problem and can count against you.	-	As required by the Arizona Rules of Family Law Procedure
Send relocation notice forty-five days out if a move is involved	If you plan to relocate the child outside Arizona or more than one hundred miles within it, A.R.S. 25-408(A) and (B) require at least forty-five days' advance written notice by certified mail, return receipt requested. The court must sanction a parent who fails to comply without good cause.	-	At least 45 days before the move

Frequently Asked Questions

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Arizona Notice to Vacate: 2026 Landlord Rules & 5-Day Statute

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Dealing With Debt Collectors in Arizona (2026)

Expunging a Criminal Record in Arizona (2026)

Filing a Workplace Harassment Complaint in Arizona

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