Redshirting in Ontario: Can You Hold Your Child Back From Kindergarten?

I get asked this one all the time. A parent will lean in, lower their voice a little, almost like they're confessing something, and ask whether they can just wait a year before starting kindergarten.

It usually comes from one of three places. Some parents have watched friends or family in the US hold a child back, where it's a pretty normal thing to do, and they figure Ontario must work the same way. Others have that quiet, gnawing feeling in their gut that their little one just isn't ready for a full school day yet. And then there are the parents of December babies, who look at the January-born kid who's going to be in the very same class and do the math: that's almost a full year older.

Here's what I always tell them. You are not the only one wondering this, and you are not wrong to ask. But it's also a much trickier thing to pull off in Ontario than most people realize, and there's a piece of this that almost nobody knows about. So let's get into it properly.

How school entry actually works in Ontario

In Ontario, school entry runs on the calendar year. Every child born between January and December of the same year starts Junior Kindergarten together. So if your child was born any time in 2022, they're all set to begin JK in September 2026, whether their birthday lands in early January or the week before Christmas.

And that's exactly where the worry creeps in. A December-born four-year-old can be nearly twelve months younger than the classmate sitting right beside them. At that age, twelve months is an eternity. It can be the whole difference between a child who's ready to sit through a story and one who still needs to wiggle every few minutes.

So I completely understand why families ask me whether they can just hold off and start the following September instead. To be clear, I'm not talking about skipping JK and dropping into Senior Kindergarten the next year. I mean genuinely delaying entry by a full year.

Here's the part that surprises most people

Redshirting is not standard practice in Ontario. It's actually quite uncommon. Across Canada it sits somewhere around four to six percent of kids, and it happens far more often in places like British Columbia than it does here. Ontario boards generally expect children to start in the year they become age eligible, and that expectation is baked into how everything runs.

But there's a nuance underneath all of this, and it's one most parents have truly never heard of.

Kindergarten in Ontario isn't mandatory. School attendance only becomes compulsory the year your child turns six, which is Grade 1. And because it isn't compulsory yet, there's sometimes a bit of room to delay, if you know where to look.

It's possible, but expect to hear no before you hear yes

Here's where that little-known piece of the Education Act comes in. The Act lays out compulsory school age, and the wording families can lean on says that a child who "attains the age of six years after the first school day in September in any year shall attend... from the first school day in September in the next succeeding year." In plain English, if your child turns six after that first day of school in September, the law doesn't actually require them to be in a classroom until the following year.

That's the wording families can lean on. But I'm going to be really straight with you about what that looks like in real life. You should walk in expecting to hear no, and probably more than once, before you ever hear yes. I've watched this play out many times. The first answer is often a flat "we don't do that here," sometimes from principals and even superintendents who don't realize the clause is sitting right there in the Act. It can take persistence, a well-documented case, and a calm willingness to keep going, politely, up the chain.

Some boards have their own deferral processes too, and a few have quietly acknowledged that children with late birthdays can wait a year when the situation truly warrants it. Practice varies enormously from one board to the next, though, and what one will allow, another will dig in against. There's no tidy province-wide answer, which is a huge part of why this is so hard to do on your own.

Why this question comes up so much more with boys

Here's something I've noticed across years of doing this work, and the data backs it up completely: this question lands on my desk far more often for boys than for girls. That is not a coincidence.

When researchers look at who actually gets held back, boys are redshirted noticeably more than girls, somewhere around seven percent of boys compared to five percent of girls. The gap stretches even wider for boys with summer and late-year birthdays. In some groups, as many as one in five summer-born boys has been delayed a year. Parents sense, often quite accurately, that their young son just isn't keeping pace with the girls beside him in those first busy classrooms.

And that instinct is colliding with a much bigger conversation happening right now. Over the past couple of years there's been a steady drumbeat of reporting and research on boys struggling in school, and the headlines are impossible to miss. Boys are falling behind girls in reading and writing, they're showing up less often at the top of the class and more often at the bottom, and teachers increasingly describe them as less engaged. The worry trails them right through to graduation and beyond.

So I get it. The parent of a young, busy, late-born boy hears all of that and thinks an extra year might give him a fighting chance.

Here's my honest take, though, and it matters. Sometimes that extra year genuinely does help a particular child. But redshirting is not a fix for the deeper reasons boys are struggling. So much of what's going on comes down to how classrooms are run, how little room there is for movement and hands-on learning, and how often boys are asked to sit perfectly still in ways that don't match how a lot of them learn. Holding a boy back a year doesn't change any of that. It just changes when he runs into it.

What if your child is still working toward the skills they need for kindergarten?

For a lot of the families who come to me, the question has nothing to do with birth month. Their child is still working toward some of the skills they'll need to be successful in a kindergarten environment, and the parent can feel it coming. Maybe toileting still isn't reliable. Maybe their speech is behind and they're worried their child won't be understood, or won't be able to ask for help when they need it.

This is the situation that gives me the most pause, and it's where I think the question of redshirting deserves the most serious thought.

I'm not going to hand you the comforting line that school is where all the support magically appears. I wish that were the reality of Ontario's public system right now, but very often it isn't. Yes, on paper there are speech-language pathologists and occupational therapists attached to boards. In practice, families routinely wait a year or two just to get their child assessed, never mind actually supported. And your child won't be easing into a cozy little room of twenty. Kindergarten classes in Ontario regularly run into the thirties. So when a child is still building those foundational skills, sending them in on time and hoping the help shows up quickly is a real gamble.

So if your child is genuinely still working toward those readiness skills, that's a legitimate reason to pause and ask whether an extra year would serve them better. It can also strengthen your case if you decide to push for a delay and lean on that wording in the Education Act.

But here's where you have to be careful, and it's a fine line.

The moment a school board hears "this is a child with additional needs," many will pivot straight to a reason you don't need to wait at all. They'll tell you they have supports for exactly these kids: diagnostic kindergarten programs, an IEP they can put together, the fact that kindergarten runs over two years precisely so different kinds of learners can be met where they are. The very thing you raised to justify waiting gets turned around and used to argue your child should start on time, because "we can support them right here."

So I'd caution you against leaning too hard on the special-education angle when you're building your case. It feels like the obvious card to play, and it can quietly weaken your chances instead of strengthening them. Knowing how hard to push, and on which point, is exactly the kind of strategic call that's almost impossible to make from the outside, and it's a big part of why families ask me to walk it with them.

The harder question: even if you can, should you?

This is the part I think parents deserve to hear honestly, because it almost never makes it into the conversation.

The research on redshirting is genuinely mixed. Children who start a year older do sometimes show an early edge, but study after study finds it tends to wash out by around Grade 3, once the rest of the class catches up. Some research has even linked delayed entry to higher rates of certain difficulties later on. Being the oldest in the room is simply not the reliable head start it's so often sold as.

What matters far more than a birth month is the actual child standing in front of you. Readiness has much less to do with how old a child is than with where they genuinely are: how they manage their big feelings, how independent they're becoming, how they get along with other children, and whether they can handle the rhythm of a structured day. I've watched young-for-their-grade December kids absolutely flourish, and I've watched older children really struggle. On its own, age tells you surprisingly little.

If you've been quietly wondering

If you've been sitting with this, turning it over at night, wondering whether you can hold your child back, I want you to hear me: you are not the only one. It's one of the most common things parents bring to me, and it's a completely fair question to ask.

What I'd gently steer you away from is making a decision this big based on playground chatter or what worked for a cousin in Michigan. Delaying entry in Ontario touches on policy, on how your particular board operates, and on the pathway your child will be on for years to come. It deserves a real strategy behind it, not a guess and a crossed set of fingers.

If you're weighing this for your own child, this is exactly the kind of thing we help families think through, with the policy knowledge and the planning to make a confident decision, whichever way it goes.