Last June, I got a confirmation email from the day camp my 11-year-old had been asking about for months: $460 for the two-week session. I forwarded it to my ex-wife the same afternoon. Three days of silence. Then a reply I already knew was coming: "I'm not paying for that."

This is the part of divorce nobody warns you about. Not the legal paperwork, not the custody schedule, not even the first Christmas. It's the summer. Summer camp is the most expensive optional line item on the calendar, it lands in the middle of the year when both parents are already stretched thin, and it almost never gets written into a custody agreement with any real clarity.

I've been splitting kid expenses with my ex for two years now. Three kids, one city, two bank accounts that don't talk to each other. Summer camp has been the single most common fight. So if you're reading this in April or May, trying to figure out how to bring up camp with your co-parent without it turning into a five-day text war, I want to share what I've learned, including the mistakes.

How much does summer camp actually cost in 2026?

Day camps in most North American cities run $150 to $400 per week in 2026. Specialty camps (sports academies, STEM programs, music intensives) push that to $500 to $800 per week. Sleepaway camps are in a different league: $1,200 to $3,500 for a two-week session, depending on the camp and region. So when two divorced parents sit down (or text) to figure out camp for a single kid, the total ticket is rarely under $500, and for families with multiple children it can hit $3,000 in a single summer.

Here's what that looked like for me in 2025:

Oldest son, age 11. Two-week sports day camp: $460
Middle daughter, age 9. One-week general day camp through the city rec center: $180
Youngest, age 5. Half-day summer program at his daycare (already covered by the daycare invoice, thankfully)
One-off family outing. Water park tickets for all three: $200 (my ex and I took the kids on separate days)

Total optional summer spending that year was around $840 before you count the daycare. Split 50/50, that's $420 each. Except my ex's position was that she'd share the rec center camp (because it's "the cheap one") and nothing else. So the real question wasn't how much camp cost. It was: which of these expenses counts as shared?

Who pays for summer camp after divorce?

The honest answer: it depends on what your custody or separation agreement says, and most agreements don't say much. Summer camp usually falls under extracurricular expenses or discretionary expenses, meaning it's not automatically shared the way medical bills or school fees are. In many U.S. states and Canadian provinces, both parents have to agree in advance before an extracurricular expense becomes shareable. If one parent signs the kid up without consent, the other isn't legally required to pay a dime.

That's the trap I fell into the first year. I registered my son for judo camp because he'd been asking for months and the spots were filling up. I didn't loop my ex in before I paid the deposit. When I sent her the invoice, she said she hadn't agreed to it, and legally she was right. I ate the full cost.

If you want a deeper read on how different custody agreements handle this category, I wrote a longer piece on who pays for extracurriculars after divorce that covers the legal side in more detail.

What if the agreement says "reasonable extracurricular expenses"?

This is the most common wording, and the most useless. "Reasonable" means whatever a judge decides is reasonable, which means if your co-parent says no and you want to push it, you're looking at lawyer fees that will almost certainly exceed the camp cost. I paid $220 for an hour of my family lawyer's time once to ask about exactly this situation. Her advice? "Don't fight over $460. Document it and bring it up at the next review." That hour cost more than half of what I was fighting over.

What happens when your co-parent says no?

You have three options, in order from cheapest to most expensive:

Option one: pay it yourself and move on. This sounds like losing, but it isn't always. If your kid genuinely wants the camp and the cost is manageable for you, paying it alone buys peace. It also avoids putting your child in the middle of a money fight, which is worth a lot.

Option two: propose a compromise. Maybe your ex won't split a $460 specialty camp but will split a $180 rec center camp. Maybe they'll cover camp fees if you pay for supplies and transport. Maybe they'll agree to a 40/60 split based on incomes. You don't know until you propose something specific, in writing, with a dollar amount and a deadline.

Option three: document and escalate. If the expense is clearly covered by your agreement and your ex is refusing in bad faith, you start a paper trail. Log the expense in a shared tracker, send a formal reimbursement request, wait the period specified in your agreement (often 30 days), and then take it to mediation or small claims. This is the nuclear option. It's slow, expensive, and rarely worth it for a single camp registration.

For me, option two has been the winner nine times out of ten. The trick is making the proposal specific enough that it's easier to say yes than to keep arguing.

How do you split camp costs fairly when incomes are different?

50/50 is the default in a lot of custody agreements, but it rarely feels fair when one parent earns twice as much as the other. A few approaches I've seen work:

Proportional to income. If you earn 60% of the combined household income, you pay 60% of the camp cost. This is how most U.S. states calculate child support in the first place, so it has a logic courts already recognize. The downside: you need to share pay stubs or tax returns, which some co-parents refuse to do.

Category-based split. Medical and school costs: 50/50. Extracurriculars: paid by whoever proposes them, unless both agree in writing. Camp: treated like extracurriculars. This is messy but honest about what's actually happening.

Fixed monthly contribution. Each parent puts a set amount into a shared "kids account" every month (say $300 each), and all shared expenses come out of that pool. When the pool runs low, you top it up. This works well for co-parents who can stomach the loss of control, but it takes a level of trust most exes don't have.

In my case, my ex and I try to do 50/50. Once I started logging every single expense, I realized I was paying closer to 65% of the total. Not because she was cheating. Just because a lot of small spending slipped through my own tracking. Winter boots, school supply runs, the $40 haircut before picture day. None of it got split because I never brought it up. If you want to see the math on your own situation, you can drop numbers into our free expense calculator. It does the income-proportional math for you.

Why I stopped fighting about the $40 stuff

Here's a rule I wish I'd adopted sooner: don't fight about anything under $20. My lawyer told me something that stuck. You're trading $50 of emotional energy for $10 of reimbursement. When I stopped sending small-dollar requests, the big conversations (like summer camp) actually got easier, because my ex wasn't constantly defending against a stream of $15 pings.

Which camps count as "necessary" vs "optional"?

This is where most fights start. The camp I wanted my son to go to was a sports specialty program. My ex's position: sports camps are optional, so optional = I pay alone. My position: our son has been in organized sports for four years, this isn't a sudden impulse, and a summer without structure is bad for him.

Neither of us was entirely wrong. But here's a rough working definition I've settled on:

"Necessary" camps cover childcare while both parents work. If you both have full-time jobs and the kid is too young to be home alone, camp is essentially summer daycare. Most co-parents will agree these should be shared, even if the agreement doesn't explicitly say so.

"Optional" camps are specialty or recreational programs that aren't needed to cover work hours. Sports academies, arts camps, sleepaway camps. These are harder to get split unless both parents see the value. My recommendation: send a quick cost-benefit writeup before registration ("This is what the camp costs, this is what he gets from it, this is what I'm proposing to split"), not after you've already paid.

"Enrichment" camps that double as childcare. This is the sweet spot. If you can frame a sports camp as both "enrichment for the kid" AND "covers your childcare gap in July," you have a much stronger case for splitting. Most agreements consider childcare-during-work-hours a shared expense. Use that.

How to negotiate camp costs without a fight

The number one rule: bring it up early. Camp registration in my city opens in February for the July/August season. That's four to five months of lead time. If you wait until May to bring up a $500 camp, you're asking your ex to absorb an unexpected expense on short notice. If you bring it up in February, they have time to plan for it, or time to push back without blowing up the week of camp.

A few other things that have actually worked for me:

Put everything in writing. No verbal agreements. If you agree on something at kid drop-off, send a follow-up text summarizing what you agreed to. This isn't paranoia. It's how you protect both of you from honest memory differences three months later.
Lead with the kid, not the bill. "Kevin has been asking about basketball camp since March" lands differently than "Basketball camp is $420, your half is $210." Both statements are true. One starts a conversation; the other starts a negotiation.
Offer a menu. Don't send one camp option. Send two or three, at different price points, and ask which your co-parent prefers. Giving them a choice lowers defensiveness.
Separate the registration from the payment. Pay upfront yourself, lock in the spot, and then bring up the reimbursement conversation. You remove the "I'll miss the deadline" panic from the negotiation.
Never talk money during the handoff. Kids pick up on this stuff immediately. Save it for email, text, or a scheduled call when they aren't within earshot.

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What if your custody agreement doesn't mention summer camp?

Most don't, honestly. Mine doesn't. The agreement says "extracurricular activities by mutual written agreement," which in practice means anything my ex doesn't want to pay for, she can refuse. If you're in the same situation, your options are:

Request a modification. Next time you're updating the agreement, maybe at an annual review, or when the kids change schools, push to add specific language about summer camp. Something like: "Summer day camps up to $X per child per year will be shared 50/50, provided either parent gives the other 60 days' notice before registration."

Create a side agreement. You don't have to re-open the full custody case to make a small written agreement with your co-parent about summer camp specifically. A signed email thread, or a short document both parents sign, can be enough to hold up if the dispute escalates later.

Document everything anyway. Even without an agreement, if you're consistently logging shared expenses and your co-parent is consistently refusing to pay their half, you're building a case. If it ever goes back in front of a judge, a two-year log of unreimbursed expenses is much more persuasive than a single complaint. The American Camp Association also publishes annual cost data you can cite as evidence that what you proposed was within the normal range for your region.

What I actually did with the $460 camp

I want to close this out with what actually happened, because I've read enough co-parenting blogs that promise a clean ending. This one doesn't have one.

After my ex said no to the $460 sports camp, I paid for it myself. I was frustrated. I'll be straight with you. I stewed about it for about a week. Then my son came home from his first day and wouldn't stop talking about the new friends, the coach, the drills. And I realized the $460 wasn't the point. The point was that my kid had a good summer.

The system we have now (I log everything in CoParentSplit, she sees it, we split what we can agree on) doesn't solve every fight. But it's dropped the temperature. Because the receipts aren't the problem anymore. They're just sitting there in the app, waiting for us to deal with them like adults.

If the small stuff (the $40 haircuts, the $60 pharmacy runs, the $23 school field trip) is eating your energy the way it used to eat mine, that's a fixable problem. The big negotiations (camp, school, medical) get much easier when the small stuff stops dying on your phone. How to split child expenses after divorce goes deeper on the month-by-month system if you want more on that.

Summer camp will always be a negotiation. It doesn't have to be a fight.