Home State Jurisdiction in Child Custody: UCCJEA Six-Month Rule

Home state jurisdiction in a child custody case belongs to the state where the child has lived with a parent for at least six consecutive months immediately before the case is filed. Under the Uniform Child-Custody Jurisdiction and Enforcement Act (UCCJEA), which every state except Massachusetts has adopted, the home state sits at the top of a strict hierarchy and takes priority over any other state that might otherwise want to hear the case.¹ A federal statute, the Parental Kidnapping Prevention Act, reinforces that priority nationwide by requiring every state to honor the home state’s authority.

The Six-Month Residency Rule

The six months are counted backward from the day the custody petition is filed. The clock isn’t broken by ordinary time spent outside the state. Vacations, holiday visits with the other parent, and short medical trips count toward the total rather than resetting it, because the UCCJEA treats them as temporary absences that fold into the residency period.²

The rule also protects parents who stay behind after a child leaves. If the child lived in a state for six months but was removed or relocated within the six months before filing, that state still qualifies as the home state, as long as a parent or someone acting as a parent continues to live there.³ This is where pre-filing relocation strategies typically collapse. Moving the child to a new state days or weeks before filing does not shift jurisdiction to the new location; the state the child just left keeps authority, and the relocating parent often ends up litigating exactly where they hoped to avoid.

A “person acting as a parent” can satisfy the residency test in place of a legal parent. Under the UCCJEA, that term covers someone other than a legal parent who has had physical custody of the child for six consecutive months within the year before filing and who has either been awarded legal custody or claims a right to it. Grandparents raising grandchildren and stepparents with custody rights can qualify.

Home State Rules for Babies Under Six Months

Newborns can’t meet a six-month standard, so the law shifts the yardstick. For a child younger than six months, the home state is the state where the child has lived from birth with a parent or person acting as a parent.⁴ Even a two-week-old has a home state for jurisdictional purposes.

The place of birth doesn’t automatically win. Courts have held that the hospital where a child is delivered is not the same as where the child “lived from birth.”⁵ If a mother crosses a state line to deliver and returns home with the baby soon after, the home state is where mother and child actually settled, not where the delivery occurred. A brief hospital stay tied to the birth is not enough on its own.

When Another State Can Take the Case Instead

Home state jurisdiction is exclusive when it exists. Another state cannot leapfrog by arguing it has better evidence or closer ties to the family.² A second basis, called significant connection jurisdiction, only becomes available when no state qualifies as the home state, or when the home state affirmatively declines to hear the case. In that situation, a court can take the case if the child and at least one parent have a meaningful connection to the state beyond mere presence, and if substantial evidence about the child’s life is available there.³ Judges look at school enrollment, medical records, relationships with local family, and whether the court can realistically gather what it needs to decide the child’s best interests. Below significant connection sit two catch-all bases that rarely come up in practice: jurisdiction when every other qualifying court declines, and jurisdiction by default when no other state would qualify at all.

Emergency Jurisdiction Overrides the Home State

Safety comes ahead of residency. A court can step in immediately when a child physically present in the state has been abandoned or faces mistreatment or abuse, even if that court has no claim to home state jurisdiction. The same authority applies when a sibling or parent of the child is threatened.²

Emergency orders are temporary. The court sets an expiration window and expects a permanent case to be filed in the actual home state. An emergency order becomes final only if two conditions are met: no custody case has been filed in a state with proper jurisdiction, and the emergency state itself becomes the child’s home state by six months of continuous residence. The order also has to state expressly that it will become final. Without that language, it simply expires.

When the Home State Court Can Decline the Case

Having jurisdiction doesn’t require a court to use it. Two grounds allow a judge to step aside.

Inconvenient Forum

A judge may decide another state is better positioned to handle the case. The court weighs whether domestic violence has occurred and which state can better protect the family, how long the child has lived outside the state, the distance between courthouses, each family’s financial situation, whether the parents have agreed on a forum, where the key evidence and witnesses are located, and which court is more familiar with the facts.³ A court that finds itself inconvenient will pause or dismiss the case and direct the parties to file in the more appropriate state.

Unjustifiable Conduct

If the only reason a court has jurisdiction is that one parent engaged in wrongful conduct, such as removing, hiding, or restraining the child, the court must decline.³ The fee-shifting that follows is mandatory unless clearly inappropriate: the offending party must pay the other side’s attorney’s fees, investigative costs, travel expenses, witness expenses, and childcare costs incurred during the proceedings.

Domestic violence changes the analysis. A parent who flees to another state with the child to escape abuse is not automatically treated as having engaged in unjustifiable conduct, even if the move technically violated a joint custody order. The court must investigate whether the flight was justified before deciding to decline jurisdiction. The UCCJEA draws a line between a protective parent escaping danger and an abusive parent creating a jurisdictional advantage.

Modifying a Custody Order After a Move

Once a court issues a custody order, it keeps control of the case even if the family moves. The state that made the original determination retains “exclusive continuing jurisdiction” until one of two things happens: that court decides it no longer has a meaningful connection to the case, or the child, both parents, and anyone acting as a parent have all left the state.²

Only the original state can decide whether its own connection to the case has faded. A court in the new state cannot make that call. Either state, however, can determine whether everyone has moved away. Once the original state has lost jurisdiction by either measure, a parent can seek modification in the child’s new home state, usually by registering the existing order there and then petitioning to modify it.

The Federal Backstop Across State Lines

The UCCJEA is a state law. The Parental Kidnapping Prevention Act (PKPA), codified at 28 U.S.C. § 1738A, is the federal companion. It requires every state to enforce custody orders issued by other states and prohibits any state from modifying an out-of-state order unless the original state has lost or given up jurisdiction.⁴ Like the UCCJEA, the PKPA puts the home state first. If a home state exists, no other state should be exercising jurisdiction over the initial custody determination based on significant connections or any other theory.² The PKPA also bars a state from taking a case while another state is properly exercising jurisdiction over the same dispute.

Proving Home State: The Jurisdiction Affidavit

A court can’t confirm its authority without the underlying facts. When a custody case is filed, most courts require a sworn statement, often called a jurisdiction affidavit or affidavit of child’s residence, laying out the child’s recent living history. The affidavit typically asks for the child’s current address, every address the child has lived at for the past five years, and the full name and current address of every person the child lived with during that period.

Accuracy is critical. Omitting an address or a household member can lead to dismissal, and because the document is sworn, intentional misstatements expose the filer to perjury charges. Standardized forms are usually available through the local clerk of court or the state judicial branch website, and filing fees vary by jurisdiction.

1
Legal Information Institute. Uniform Child Custody Jurisdiction and Enforcement Act (UCCJEA)
2
Office of Justice Programs. The Uniform Child-Custody Jurisdiction and Enforcement Act
3
U.S. Department of State. Uniform Child Custody Jurisdiction and Enforcement Act (1997)
4
Office of the Law Revision Counsel. 28 USC 1738A – Full Faith and Credit Given to Child Custody Determinations
5
CaseMine. UCCJEA Home-State Jurisdiction for Infants Turns on Where the Child Lived from Birth with a Person Acting as a Parent – Not Place of Birth