The #1 Mistake Co-Parents Make with 504s and IEPs

If you’re divorced and co-parenting, you already know how hard it is to juggle schedules, emotions, and all those big decisions that affect your kid’s life. But when your child has learning challenges or needs extra help at school, things get even more complicated.

That’s where 504 plans and IEPs come in. These are special programs designed to help your child succeed in school. But here’s the thing—when parents aren’t working together, these helpful tools can actually make things worse.

I’ve talked to lots of parents and looked at what the experts say. And there’s one mistake that keeps coming up over and over again. It’s the biggest problem co-parents face, and it’s hurting kids every day.

Let me tell you what it is and how to fix it.

What Are 504 Plans and IEPs Anyway?

Before we dive into the big mistake, let’s make sure we’re all on the same page. Both 504 plans and IEPs are there to help kids with disabilities get a fair shot at education. But they work differently.

504 Plans – The Basics

A 504 plan comes from an old law from 1973. It’s for any kid whose disability makes it harder for them to do regular life stuff—like learning, paying attention, or even walking around.

The good thing is, it’s pretty easy to qualify. If your child has ADHD, anxiety, diabetes, or lots of other conditions, they might get a 504 plan.

What does it do? It makes small changes to help your kid in regular classes. Think:

• Extra time on tests
• A quiet place to work
• Breaks during long activities
• Sitting closer to the teacher

No special teaching involved—just tweaks to make school work better for your child.

IEPs – The Heavy Hitters

An IEP is more intense. It comes from a different law called IDEA, and your child has to fit into one of 13 specific disability categories. Things like:

• Learning disabilities (like dyslexia)
• Autism
• Speech problems
• Emotional issues

IEPs don’t just change how things are done—they change what’s taught and how. Your child might:

• Get pulled out for special reading help
• Have different homework assignments
• Meet with a speech therapist
• Follow completely different goals

Which One Does Your Child Need?

Here’s a simple way to think about it:

• 504 plan: Your kid is smart and can do the work, but needs some adjustments to show it
• IEP: Your child needs different or extra teaching to learn the material

You can start with one and switch later if needed. Many families try a 504 first to see how it goes.

The Mistakes We See All the Time

Even good parents mess this stuff up. Here are the most common problems:

Getting confused about the difference. Lots of parents think you need both plans or that one automatically leads to the other. Not true—they’re completely separate.

Showing up unprepared. Walking into meetings without reading the paperwork first is like taking a test you didn’t study for. Ask for documents ahead of time and actually read them.

Forgetting to share information. Schools need to know what’s happening at home. If your kid acts differently at Mom’s house than Dad’s, the school needs to hear about it.

Letting one parent handle everything. This burns out the “school parent” and leaves the other one clueless about what’s going on.

Not following up. These plans aren’t “set it and forget it.” If something isn’t working, speak up right away.

Leaving your kid out. Once your child hits middle school, they should be part of these conversations. It helps them learn to speak up for themselves.

All of these mistakes get worse when parents are divorced. But there’s one mistake that tops them all.

The #1 Mistake: Not Working as a Team

After hearing countless stories from parents and experts, the biggest mistake co-parents make is not coordinating their approach to 504s and IEPs. This isn’t about small disagreements—it’s about fundamentally not having a unified plan that confuses schools, weakens your advocacy, and ultimately hurts your child.

Why is this so important? Schools work best when they get consistent messages. If one parent goes to meetings and agrees to certain accommodations while the other parent ignores them at home, the whole plan falls apart. 

Teachers get mixed signals, so they don’t know what to do. Your child, who’s already dealing with challenges like ADHD or dyslexia, now has to handle different expectations in each home. This can shake their confidence, make behaviors worse, and get in the way of long-term success, like preparing for college or a job.

Let me share some real life examples of how this plays out:

In one family, Mom pushed for an IEP with reading help for her child’s dyslexia, but Dad, who wasn’t well-informed, insisted that a basic 504 was enough. The result? The child missed out on crucial reading support and fell further behind in school.

In another case, co-parents couldn’t agree on behavioral accommodations for their child’s ADHD. One parent saw it as a real medical need, while the other called it “making excuses.” The school didn’t know what to do, so the child ended up with unfair punishments and became more anxious.

When kids move between schools, like from elementary to middle school. Parents who aren’t on the same page might miss important meetings or fail to make sure services transfer properly. This can mean losing important supports like having a quiet place for tests, making the transition even harder for the child.

These problems go beyond just schoolwork. When parents don’t work together, they’re modeling poor collaboration skills for kids who might already struggle with executive function. Long-term, this can affect your child’s ability to become independent. One of the main goals of special education.

Why does this happen so often? Divorce often leads to breakdowns in communication. One parent might think they’re “in charge” of education and leave the other out. Or lingering resentment makes it hard to have productive conversations. Whatever the reason, your child is the one who suffers.

How to Fix It: 5 Steps to Better Teamwork

You don’t need to be best friends with your ex. You don’t even need to agree on everything about parenting. But you do need a system to stay coordinated when it comes to your child’s education. Here’s how:

1. Create a Shared Communication Hub

Stop trying to remember everything or assuming the other parent knows what’s going on. Set up one clear, reliable place for all school communication—this could be a shared Google Drive folder, a dedicated email chain (with both parents included), or 2houses co-parenting app could be your best communication channel. Every email from the school, every updated plan, every progress report goes here first. Make a commitment to check it daily. No secrets. No “I thought you knew.” This isn’t about trust—it’s about making sure your child gets the support they need.

2. Hold a Quick Pre-Meeting Huddle (15 Minutes Max)

Before any 504 or IEP meeting, get on a quick call together. Talk about:

• Your top 1-3 concerns: “I’m worried about how our child is focusing during math.”
• What data to share: “Homework is taking twice as long at home since the schedule changed.”
• Your united position: “We both agree that reading support is the priority, not whether to get an IEP or 504.”
• Who will do what: “You’ll go to the meeting, and I’ll review the notes afterward and make sure we follow through at home.”

This simple step prevents surprises and shows the school that you’re speaking with one voice.

3. Make a Simple Home Plan

School accommodations don’t mean much if they’re not supported at home. Create a simple, shared document (a Google Doc works great) that explains exactly how each accommodation will work in both homes. For example:

Accommodation: Extra time on tests

• At school: Teacher gives 1.5 times longer for quizzes and tests.
• At home (both houses): Give 1.5 times longer for homework assignments. Use a timer. Provide a quiet space without TV or siblings.

Accommodation: Preferred seating

• At school: Teacher seats child near the front of the classroom.
• At home (both houses): Homework happens at a desk, not on the couch. Keep background noise to a minimum.

This takes the guesswork out of supporting your child and makes sure they get consistent help no matter which parent they’re with.

4. Pick a Point Person (With a Backup)

While both parents share responsibility, choose one person as the main contact for routine school communication (like monthly progress emails). The important part? The other parent must be copied on all these emails. If the main contact can’t handle something, the backup steps in right away. No gaps. No delays.

5. Stick to the Facts, Not Feelings

You’re going to disagree sometimes. That’s normal. When it happens, focus the conversation on actual data:

• “Last week’s math quiz showed a 30% drop in scores—let’s see if the current plan addresses this.”
• “The school’s report says our child is struggling with organization. How can we adjust the visual schedule at home?”

Respect the process, even if you don’t always respect each other. Your goal isn’t to win an argument—it’s to make sure your child gets the help they’re entitled to by law.

The Bottom Line

504s and IEPs aren’t just paperwork—they’re lifelines that can make a huge difference in your child’s future. But they only work when both parents stand together. You don’t need to agree on everything about parenting. You don’t need to be perfect. You just need to commit to showing up as a team for your child.

Start small today. Open that shared folder. Send that calendar invite for a pre-meeting huddle. Create that one-page home plan. Your child’s future depends on it, and right now, that future is in your hands.