How to Modify Child Custody in New York
Reviewed by DocDraft Legal Team · New York · Last updated October 7, 2026
New York answers the first two questions parents ask with absences, then puts a price on the third. No New York statute imposes a waiting period before you may ask to change a custody order, and no New York statute sets a relocation notice period or a mileage trigger. Modifying child custody here means asking the court that issued your existing custody or visitation order to change it because something significant has changed since that order was made. What New York does have is an express statutory standard, and it attaches by origin. Family Court Act 652(a) lets the Family Court modify a custody judgment from a divorce, separation or annulment only on a showing that there has been a subsequent change of circumstances and that modification is required, and section 467(a) carries the same words for referred matrimonial applications. Both limbs count: the change, and that modification is required. Domestic Relations Law 240(1)(a) grants the power to annul or modify a custody direction but states no threshold of its own, and it provides that in all cases there is no prima facie right to custody in either parent. The third question is forum, and forum decides your cost. If your order came out of Family Court, you file the statewide petition, Form GF-40, and Family Court charges nothing. If your custody terms sit inside a Supreme Court divorce judgment that reserved modification to that court, you move there instead, and CPLR 8020(a) sets $45 on each motion plus $95 for a Request for Judicial Intervention. Attorney review of your filing is available through DocDraft.
Find out where you stand in New York
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 New York?
No. New York imposes no waiting period before a parent may petition to change a custody or visitation order. Family Court Act 467, 651 and 652 contain no filing bar at all, and the ninety day figure in section 651(e)(2) is a court review interval before a successive temporary order, not a wait imposed on a parent.
How much notice must a New York parent give before moving with a child?
New York sets no statutory notice period and no mileage trigger. The word relocate appears nowhere in Family Court Act 467, 651 or 652, or in Domestic Relations Law 240. What binds a parent is the geographic language written into the individual custody order, together with New York appellate case law.
Which court changes a custody order in New York?
Either the Family Court or the Supreme Court. Family Court Act 652(b) lets the Family Court modify custody awarded in a divorce judgment unless the Supreme Court provided in that order or judgment that it may be enforced or modified only in the Supreme Court. An order first made in Family Court goes back to Family Court.
How much does it cost to file a custody modification in New York?
Nothing in Family Court, which charges no fee to file a custody petition. In a Supreme Court matrimonial action, CPLR 8020(a) sets $45 on the filing of each motion or cross motion, plus $95 where court rules require a Request for Judicial Intervention before a judge is assigned.
New York custody modification at a glance
Changing child custody in New York means asking the court that issued your existing custody or visitation order to change it because something significant has changed since then. New York sets no waiting period and no statutory relocation notice period, imposes no adequate cause screen, and fixes no age at which a child's preference must be heard. Its express standard is statutory but origin specific: Family Court Act 467(a) and 652(a) require a subsequent change of circumstances and that modification is required, and those words reach orders originating in a matrimonial action. Domestic Relations Law 240 grants the modification power without stating a test. So the practical New York question is forum, because forum sets your cost. Family Court takes the statewide Form GF-40 with no fee, while a Supreme Court motion draws $45 plus a $95 Request for Judicial Intervention.
A New York forum clause worth $140
Suppose your custody terms sit inside an Erie County Supreme Court divorce judgment entered two years ago, your shift at work has moved to nights, and the weekday schedule no longer works. You read the judgment line by line and find no clause reserving enforcement or modification to the Supreme Court, and no referral was ever made. Family Court Act 652(b)(ii) then lets the Family Court determine your application, so you file Form GF-40 at no fee instead of a Supreme Court motion carrying $45 plus a $95 Request for Judicial Intervention. You still have to show a subsequent change of circumstances and that modification is required. Nothing makes you wait first. Attorney review of your filing is available through DocDraft.
Relevant Laws
N.Y. Family Court Act 652 (concurrent jurisdiction and the statutory standard)
Gives the Family Court jurisdiction, with the same powers possessed by the Supreme Court, over applications to modify custody and visitation in matrimonial matters, and permits modification only on a showing of a subsequent change of circumstances and that modification is required. Subsection (b) is the clause that lets the Supreme Court reserve enforcement or modification to itself.
N.Y. Family Court Act 651 (Family Court jurisdiction, and the military modification rule)
Carries the Family Court's own custody jurisdiction, the ninety day review interval before a successive temporary order in subsection (e)(2), which is not a waiting period for a parent, and in subsection (f) the clear and convincing evidence standard, mandatory attorney for the child, and return from active service as a substantial change in circumstances.
N.Y. Domestic Relations Law 240 (power to modify, and no prima facie right to custody)
Provides that the court may annul or modify a custody direction whether made by order or final judgment, without stating a change of circumstances threshold of its own, and provides that in all cases there shall be no prima facie right to the custody of the child in either parent.
N.Y. C.P.L.R. 8020(a) (Supreme Court motion and Request for Judicial Intervention fees)
Sets a county clerk fee of ninety five dollars payable before a judge may be assigned on a Request for Judicial Intervention, and a fee of forty five dollars on the filing of each motion or cross motion in such an action, and imposes no fee on a motion seeking leave to proceed as a poor person.
NYS Unified Court System Form GF-40 (Petition For Modification Of Order Of Custody Visitation)
The statewide Family Court petition used to ask for a change to an existing custody or visitation order, with GF-40a as the companion order. The court system also publishes a free guided Custody and Visitation Modification DIY Form program that assembles the petition.
Regional Variances
New York custody modification levers at a glance
Waiting period before you may file
None. No New York statute bars or delays a modification petition. Family Court Act 467, 651 and 652 carry no one year or two year filing bar, and the only such figures in Domestic Relations Law 240 sit in forensic evaluator training and child support definitions. The ninety day figure in Family Court Act 651(e)(2) is the court's own review interval before issuing a successive temporary order.
Standard to change an existing order
Express and statutory, but origin specific. Family Court Act 467(a) and 652(a) both require a showing that there has been a subsequent change of circumstances and that modification is required, and those words attach to orders originating in a divorce, separation or annulment. For an order first made in Family Court, the operative standard is case law. Domestic Relations Law 240 grants the power to modify but sets no threshold.
Relocation notice
None by statute. No notice period in days and no mileage trigger exists in New York custody law; the word relocate does not appear in Family Court Act 467, 651 or 652 or in Domestic Relations Law 240. Limits come from the terms of the individual order and from appellate case law. The 100 mile figure in Domestic Relations Law 240(1)(a-3)(5) governs forensic evaluator appointment for an out of state child and is not a notice trigger.
Court
Two, concurrently. The Family Court of the State of New York and the Supreme Court. An order first made in Family Court returns there under Family Court Act 651(b). Custody inside a matrimonial judgment may be referred down under 652(a), and under 652(b) the Family Court may take it even without a referral unless the Supreme Court provided that the order may be enforced or modified only in the Supreme Court.
Forms
GF-40, Petition For Modification Of Order Of Custody Visitation, is a statewide Unified Court System Family Court form, with GF-40a as the companion order. A free statewide Custody and Visitation Modification DIY Form program builds it. GF-17 is the initial custody or visitation petition, not a modification, and GF-41 is the enforcement petition.
Filing fee
A genuine split, so one number would be wrong. Family Court charges nothing to file a custody petition. In a Supreme Court matrimonial action, CPLR 8020(a) sets $45 on the filing of each motion or cross motion plus $95 for a Request for Judicial Intervention where court rules require one, and no fee at all on a motion for leave to proceed as a poor person under CPLR 1101(a).
Procedural screen
None. New York has no adequate cause screen and no required threshold affidavit on a custody modification. The phrase adequate cause appears in neither Family Court Act 467, 651 and 652 nor Domestic Relations Law 240, and the affidavit references in Domestic Relations Law 240 concern service of orders of protection. The threshold New York imposes is substantive, not a paper gate.
Child's wishes
No statutory age. New York fixes no age at which a child's preference must be considered, and Domestic Relations Law 240 contains no preference provision. The mechanism is an attorney for the child, discretionary in a custody or visitation case under Family Court Act 249(a) but mandatory under 651(f)(2) where modification is sought during a parent's military service. The judge may speak with the child privately.
Suggested Compliance Checklist
Locate the order and identify the issuing court
Before you file days after startingPull the actual signed order or judgment. If a Family Court issued it, that is your court. If your custody terms sit inside a divorce, separation or annulment judgment, this document decides your forum and your fee, so read every line of it.
Check the judgment for a Supreme Court reservation clause
Before you file days after startingLook for language providing that the order or judgment may be enforced or modified only in the Supreme Court. Under Family Court Act 652(b), that clause closes the free Family Court route and turns your request into a motion inside the matrimonial action.
Read the geographic terms in your order
Before any planned move days after startingNew York sets no statutory relocation notice period and no mileage trigger, so any limit on moving with the child is in your own order. Find the exact wording before you sign a lease or accept a job, because the order is what a court will enforce.
Assemble proof of the subsequent change of circumstances
Before you draft the petition days after startingFamily Court Act 652(a) wants a subsequent change of circumstances and that modification is required. Gather dated school records, work schedules, medical notes and messages that postdate the order. Attorney review of your filing is available through DocDraft.
Complete Form GF-40
As soon as your evidence is assembled days after startingFill out GF-40, the statewide Petition For Modification Of Order Of Custody Visitation, or use the free statewide Custody and Visitation Modification DIY Form program to assemble it. GF-40a is the companion order. Do not file GF-17, which is for an initial determination.
File with the correct clerk and pay the correct fee
Promptly once drafted days after startingFamily Court charges nothing to file a custody petition. A Supreme Court motion draws $45 under CPLR 8020(a) plus $95 for a Request for Judicial Intervention where required, and nothing on a poor person motion. Talk to a clerk in the court where the order was made.
Serve the other parent and file proof of service
By the court's service deadline days after startingServe the petition and every attachment the way the court directs, then file proof of service. Without proof on file the court will generally not reach your request at the first appearance, and the date gets pushed out.
Attend the appearance and keep following the current order
On your appearance date days after startingBring your documents and a specific proposed schedule. The judge may appoint an attorney for the child and may speak with the child privately. Follow the existing order until a new one is signed, because departing from it is an enforcement problem that can count against you.
| Task | Description | Document | Days after starting |
|---|---|---|---|
| Locate the order and identify the issuing court | Pull the actual signed order or judgment. If a Family Court issued it, that is your court. If your custody terms sit inside a divorce, separation or annulment judgment, this document decides your forum and your fee, so read every line of it. | - | Before you file |
| Check the judgment for a Supreme Court reservation clause | Look for language providing that the order or judgment may be enforced or modified only in the Supreme Court. Under Family Court Act 652(b), that clause closes the free Family Court route and turns your request into a motion inside the matrimonial action. | - | Before you file |
| Read the geographic terms in your order | New York sets no statutory relocation notice period and no mileage trigger, so any limit on moving with the child is in your own order. Find the exact wording before you sign a lease or accept a job, because the order is what a court will enforce. | - | Before any planned move |
| Assemble proof of the subsequent change of circumstances | Family Court Act 652(a) wants a subsequent change of circumstances and that modification is required. Gather dated school records, work schedules, medical notes and messages that postdate the order. Attorney review of your filing is available through DocDraft. | - | Before you draft the petition |
| Complete Form GF-40 | Fill out GF-40, the statewide Petition For Modification Of Order Of Custody Visitation, or use the free statewide Custody and Visitation Modification DIY Form program to assemble it. GF-40a is the companion order. Do not file GF-17, which is for an initial determination. | - | As soon as your evidence is assembled |
| File with the correct clerk and pay the correct fee | Family Court charges nothing to file a custody petition. A Supreme Court motion draws $45 under CPLR 8020(a) plus $95 for a Request for Judicial Intervention where required, and nothing on a poor person motion. Talk to a clerk in the court where the order was made. | - | Promptly once drafted |
| Serve the other parent and file proof of service | Serve the petition and every attachment the way the court directs, then file proof of service. Without proof on file the court will generally not reach your request at the first appearance, and the date gets pushed out. | - | By the court's service deadline |
| Attend the appearance and keep following the current order | Bring your documents and a specific proposed schedule. The judge may appoint an attorney for the child and may speak with the child privately. Follow the existing order until a new one is signed, because departing from it is an enforcement problem that can count against you. | - | On your appearance date |
Frequently Asked Questions
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