Your ex just told you they’re moving out of state, and you need to know if you can modify custody agreement due to relocation.
Missouri has laws that require parents to follow specific procedures when one parent wants to relocate with a child. Those laws give you rights, but only if you act within strict timeframes.
Yes, You Can Modify Custody When Your Ex Relocates
Under Missouri Revised Statutes § 452.377, you can object to the relocation and ask the court to modify the custody arrangement. The relocating parent must prove the move is made in good faith and serves the child’s best interests.
Possible scenarios that may take place:
- You object within the legal deadline: The other parent cannot move with your child until the court decides.
- The court denies the relocation: Your ex must choose between staying in Missouri and moving without the child.
- Should the court allow the move, it will modify the custody agreement to reflect the new reality and ensure you maintain meaningful contact with your child.
What Counts as Relocation According to Missouri Relocation Law
The relocation law applies when:
- A parent with custody or significant parenting time plans to move
- The move changes where the child primarily lives
If your ex plans to move and take your child with them, they must follow Missouri’s notice requirements. If they don’t, or if you object to the move, you have legal options.
Your Ex Must Give You 60 Days’ Notice
The relocating parent must provide written notice at least 60 days before the planned move. The notice must be sent by certified mail, return receipt requested.
According to Missouri law, said notice must include:
- The new address (or at least the city if the exact address isn’t known yet)
- The home telephone number at the new residence
- The date of the intended move
- Specific reasons for the relocation
- A proposed revised parenting schedule
- Your right to file a motion to prevent the relocation within 30 days
If your ex fails to provide proper notice, the court can:
- Consider the failure as a factor in modifying custody
- Order the child returned if the move happens without notice
- Require the relocating parent to pay your attorney’s fees and expenses
Keep the notice once you receive it. Date-stamp it and store it somewhere safe. You’ll need it to prove when you were notified and what information your ex provided.
You Have 30 Days to Object
Once you receive the relocation notice, you have 30 days to file a motion to prevent the move. The motion must include an affidavit explaining the factual basis for your objection.
If you file within 30 days:
- Your ex cannot relocate until the court decides
- Your ex must file a response within 14 days (unless the court extends the deadline)
Your ex can proceed with the relocation 60 days after sending you notice if you don’t file within 30 days.
The Relocating Parent Must Prove the Move Is Good for Your Child
If you object to the relocation, your ex must prove two things to the court under Missouri Revised Statutes § 452.377:
- The relocation is made in good faith
- The relocation is in the child’s best interests
Good faith means:
- The move isn’t designed to interfere with your parenting time
- There’s a legitimate reason for the relocation (job opportunity, family support, lower cost of living)
- The relocating parent isn’t moving just to make co-parenting harder
Best interests analysis includes:
- The reasons for the proposed move
- The reasons you’re opposing the move
- The relationship between the child and both parents
- The child’s adjustment to home, school, and community
- The impact on the child’s relationship with the extended family
- Whether a realistic and reasonable visitation schedule can preserve the relationship with you
- The child’s wishes (if old enough to express a preference)
- Any history of domestic violence or abuse
The burden is entirely on the relocating parent. You don’t have to prove the move is bad. They have to prove it’s good.
If the Court Allows the Relocation
If the court determines the move serves the child’s best interests, it will modify the custody arrangement to reflect the new reality.
The court must:
- Order contact with you (the non-relocating parent) that ensures frequent, continuing, and meaningful contact with the child
- Specify how transportation costs will be split between parents
- Adjust child support to account for increased transportation expenses
The modified parenting plan might include:
- Extended summer parenting time for you
- School breaks and holidays divided differently
- Virtual visitation (video calls, phone calls) on a regular schedule
- Responsibility for travel costs clearly spelled out
The goal is to maintain your relationship with your child despite the distance.
If the Court Denies the Relocation
If the court finds the relocation isn’t in the child’s best interests, your ex cannot move with the child. They have two options:
- Stay in Missouri to maintain the current custody arrangement
- Move without the child and request a modified parenting schedule
If your ex chooses to move anyway, you can file a motion to modify custody. At that point, the court may award you primary physical custody since the other parent chose to relocate away from the child.
When Your Ex Moves Without Giving Notice
Some parents skip the legal process entirely and just move. If your ex relocates with your child without providing the required 60-day notice, you can file an emergency motion.
The court can:
- Order the immediate return of the child to Missouri
- Find the relocating parent in contempt
- Modify custody in your favor
- Order the relocating parent to pay your attorney’s fees and costs
Violating Missouri’s relocation law is taken seriously. Courts don’t look kindly on parents who ignore legal requirements, especially when it involves taking a child out of state.
Filing Your Own Motion to Modify Custody
Missouri Revised Statutes § 452.410 states that you can request a custody modification when there’s a substantial and continuing change that affects your child’s best interests.
A parent’s relocation often qualifies, especially if:
- The move makes the current parenting schedule impossible
- The relocating parent can’t maintain stability for the child in the new location
- The child’s relationship with you would suffer significantly
- The other parent’s reasons for moving don’t outweigh the disruption to the child
You’ll need to show the court why modifying custody (rather than just the parenting schedule) serves your child’s best interests.
What If You’re the One Who Wants to Move?
The same rules apply to you. You must provide 60 days’ written notice to the other parent and follow all the requirements under Missouri law.
Be prepared to prove:
- Your move is in good faith (not to interfere with the other parent’s time)
- The relocation serves your child’s best interests
- You have a realistic plan for maintaining the child’s relationship with the other parent
If the other parent objects, you’ll carry the burden of proof at the hearing.
Start building your case early by documenting your reasons for the move. Develop a detailed proposed parenting plan that shows how both parents will remain involved.
How Joint Custody Complicates Relocation Cases
If you currently share joint physical custody, a relocation may shift the arrangement significantly.
Missouri law under § 452.375 establishes that equal or approximately equal parenting time is in the child’s best interests.
The court will consider:
- Whether meaningful joint physical custody can continue despite the distance
- How the relocation affects the child’s time with each parent
- Whether the benefits of the move outweigh the disruption to shared parenting
Courts generally try to preserve both parents’ involvement, but distance creates practical limitations.
Let Us Help You Respond to Relocation
Your ex moving to another state doesn’t automatically end your custody rights or your relationship with your child.
The court’s decision will focus on what’s in your child’s best interests. If you act quickly and build a strong case, you can protect your parenting time and your child’s stability.
Relocation cases move quickly, and having an attorney who knows Missouri law makes a difference in the outcome. Contact Raza Family Law Solutions today.