When Divorced Parents Disagree on the IEP: What You Need to Know.

Sometimes the “happily ever after” just isn’t. Life changes. People grow apart. And before you know it, you’re not just navigating a divorce—you’re also trying to parent a child with an IEP… with someone you divorced. Whew, as if you didn’t have enough on your plate, now it really gets complicated.

So what happens when divorced parents disagree on the IEP? Who gets the final say on educational decisions? And what should you do when you and your ex just can’t get on the same page?

To help sort it out, I asked my friend and colleague Penelope Boyd, a Family and Education Lawyer based in West Chester, PA, to co-write this post with me. She practices in Pennsylvania, so be sure to check your own state’s laws for the fine print.

First Things First: This Is a Family Law Issue

Before diving into custody terms and IDEA citations, let’s get one thing straight:
Disputes over educational decision-making rights are family law issues, not IEP team issues.

It’s not the school’s job—or right—to decide which parent gets to make decisions. If divorced parents disagree on the IEP, it’s up to the courts, not the IEP team, to sort it out. Don’t expect the school to mediate.

That said, the school can and will ask for custody paperwork. This might happen during enrollment, when assigning transportation, or when determining who signs off on consent forms.

So yes, you do need to understand your custody order and how it defines your rights as a parent.

Understanding Custody in IEP Disputes

In Pennsylvania, custody is divided into two categories:

Legal Custody

Legal custody refers to the right to make major decisions about your child’s life—like education, medical care, and religion. It’s usually shared between both parents, even after divorce, unless a court order says otherwise.

So if your custody arrangement says you share legal custody, you and your ex are both supposed to agree on IEP decisions.

Physical Custody

Physical custody means who the child is with and when. It can be:

• Sole – one parent has the child full time
• Shared – time is split equally
• Primary – one parent has the child more than the other
• Partial – the non-primary parent has the child less than half the time

Physical custody doesn’t automatically give you—or take away—educational decision-making rights. That’s legal custody’s job.

When Divorced Parents Disagree on the IEP

If divorced parents disagree on the IEP—like services, placement, or even whether a child should have one—it often becomes a standoff. Some families try:

• Co-parenting counseling
• Mediation through attorneys
• Letting the courts decide (yep, custody court—again)

But what about the IEP team?

Unless a court order gives one parent sole educational rights, the team must treat both parents as equals. That doesn’t mean they’ll like it. And yes, I’ve seen IEP teams take sides—sometimes subtly, sometimes not.

When You and Your Ex Never Married

What If We Were Never Married? Here’s another layer that’s becoming more common: You were never married, but now you’re separated—and trying to co-parent a child with an IEP.

Sound familiar? You’re not alone.

In recent years, it’s become increasingly common for couples to co-parent without ever legally tying the knot. But when the relationship ends, all those same questions around educational decision-making come up. The challenge? Without a divorce decree or custody order in place, there’s often nothing on paper spelling out who gets to decide what…and that’s where the trouble begins.

If you and your child’s other parent were never married, the school may treat you as equal decision-makers by default, especially if both of you are listed on school records and actively involved. But if there’s no legal custody order filed with the court, there’s also no clear path forward when disagreements arise.

So what can you do?

Get it in writing. Even if you never went through a divorce, you can (and should) go to family court and get a custody agreement in place that defines:

• Who has legal custody (aka decision-making power)
• Whether both parents must be consulted on education issues
• How to handle IEP disputes moving forward

Because once an IEP team sees you can’t agree—and there’s no legal paperwork saying who gets the final say—they may delay decisions, loop in legal, or even start playing one side against the other (yes, it happens).

Save yourself the headache. Spell it out in writing now, before things get more complicated.

What IDEA Actually Says (and Doesn’t Say)

IDEA (Individuals with Disabilities Education Act) doesn’t weigh in on divorce or custody. At all.

Here’s what it does say:

IDEA 300.30 – Who Counts as a Parent?

(a) Parent means—

(1) A biological or adoptive parent
(2) A foster parent (if permitted by state law)
(3) A legal guardian
(4) An individual acting as the parent (e.g., grandparent, stepparent)
(5) A surrogate parent appointed under §300.519

(b)(1) If multiple people qualify as a “parent,” the biological or adoptive parent is presumed to be the parent—unless they’ve lost legal rights by court order.

(b)(2) If a court order designates someone specific to make educational decisions, that’s who the school must follow. (bold mine)

Access to Records: Yes, Your Ex Still Has It

Even if you have primary custody, your ex can still access your child’s educational records.
IDEA and FERPA guarantee this, unless a court order says otherwise.

So… be smart with your emails. Especially after a tense meeting or meltdown. Schools can and do share parent emails. And I promise, your Ex’s lawyer would love to read that late-night vent you sent to the team.

Pro tip: Always wait 24 hours before sending a heated email.

In situations where parents disagree about IEP decisions, questions sometimes arise about stay put or pendency and whether a child’s services can change during ongoing disputes.

What to Put in Your Custody Agreement

If you’re just starting the divorce process (or modifying an existing custody order), spell this stuff out:

• Who has legal educational decision-making authority
• Whether both parents must be invited to IEP meetings
• If new partners can attend (yes, that comes up a LOT)

Don’t assume your IEP team will navigate the gray areas for you—they won’t. If your custody order doesn’t spell it out, you’re setting the team up to play referee.

And trust me, that won’t go in your favor.

When the School Gets Stuck in the Middle

Here’s some of what I’ve seen IEP teams do—some of it accidental, some of it not:

• “Forgetting” to invite one parent
• Only sending documents to one household (which may fulfill their legal obligation)
• Playing one parent against the other
• Acting like one parent’s input doesn’t matter

If this sounds familiar, and you have the legal authority, you can make this an IEP issue. The school must ensure meaningful parent participation, and that includes you.

So What Should You Do?

1. Clarify custody in your court order—especially who gets to make education decisions.
2. Give the school a copy of your custody paperwork.
3. If the school ignores it, then it becomes an IDEA/FAPE issue.
4. Stay child-focused. This is hard. But your kid’s needs must come before your feelings about your Ex.
5. Consider facilitated IEP meetings if co-parenting is turning into co-fighting.

Final Thoughts

Divorce is hard enough. Co-parenting with an IEP involved? That’s another level of emotional gymnastics. But the more you clarify in writing—both with the school and in your custody agreement—the better off everyone will be.

Especially your child.

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Written by Lisa Lightner with Penelope Boyd, Esq.
Family & Education Law Attorney | West Chester, PA