The tuition worked out to a little over two thousand a month. Manageable, on their income. They ran it against the budget, saw it fit, and felt the quiet relief of a hard thing turning out to be possible. What nobody put in front of them was the other number: two children, private school from kindergarten through twelfth grade, and what that came to before anyone had set it beside a single alternative.
The Question Underneath the Question
The debate about private school is almost always had out loud on other terms. Class size, the teachers, the environment, whether a particular kid will do better in one setting than another. Those are real questions and they deserve real answers.
Underneath them sits a second decision that rarely gets spoken about in the same conversation. Choosing private school is choosing to carry a large, fixed cost for a long time. The two decisions ride together, and because the first one is easier to feel and argue about, the second one often gets made without ever being examined on its own.
Why the Monthly Number Hides the Real One
Tuition arrives as a monthly figure, and a monthly figure is easy to check against a paycheck. It either fits or it doesn't. When it fits, the question feels answered.
But the monthly view is the one thing standing between a family and the number that actually governs the decision. Private school is rarely one year. It is a stretch of years, often the full run from kindergarten through twelfth grade, and sometimes for more than one child at a time.
Put the full span on paper. Tuition at a little over two thousand a month is about twenty-four thousand a year. Held flat across thirteen years, that is roughly $312,000 for one child and about $624,000 for two. Those figures are only a baseline. They assume flat tuition and exclude the fees and additional expenses that may accompany it, but they also assume no financial aid. Real tuition tends to rise faster than inflation, which moves the true number higher, not lower. None of it is wrong to spend. But it is a very different figure from the one the family said yes to, and most people never see it, because the monthly number keeps it out of view.
What the Tuition Competes With
Those dollars are not extra. They come from somewhere, and the somewhere is usually the part of the plan that has no deadline attached and therefore makes no noise when it goes underfunded.
For most households that means the retirement contribution rate, the college savings the private schooling is partly meant to lead toward, or the general flexibility that lets a family absorb a job change or a bad year without strain. Nothing on a monthly budget shows that transfer taking place. The tuition line is visible and gets paid. The retirement contribution that stayed flat, or the college savings that never grew, are not.
The way I see it, this is more than a "can we afford it" question. It is a decision that is emotional as much as financial, and one you can't settle by rationalizing your way to the answer you already want. You have to run the numbers too, so the whole of it is in view.
A fuller comparison sets tuition beside what the same dollars would do somewhere else over the same years. Invested steadily across a K-12 span, the same cash flow could accumulate into a substantial sum through compounding, though how much depends entirely on the return assumptions used, which is why it is better held as a range than a single number. What that range represents is a real alternative use of the money, and it often does not sit beside the tuition when the decision gets made.
Two Decisions, Not One
The education decision and the financial decision each deserve to be evaluated on their own terms. Merging them means neither gets made cleanly.
My view is that a plan is a decision structure, not a list of goals, and a list of goals stays a set of preferences until something forces a choice between them. I wrote about that distinction in The Difference Between a Financial Goal and a Financial Plan. Private school is one of the clearer places it surfaces. A family can hold several sincere goals at once, and the tuition decision quietly ranks them long before anyone sits down to do it deliberately.
Making the education case and the financial case separately doesn't resolve anything on its own. It means the family sees what they are actually choosing between before they choose, instead of discovering the ranking years later in a retirement projection.
Deciding on Purpose
None of this argues for public school, and none of it argues against private. Plenty of families run the full number, set it beside the alternative, and decide the education is worth what it displaces. That is a decision made on purpose, and it holds up precisely because it was made with the tradeoff in view.
The work itself is not complicated. Run the cumulative cost across all the years and every child rather than the monthly figure, and set it beside what those same dollars would otherwise fund, held as a range rather than a promise. With both numbers in front of you, you can name what you would actually be trading, so the choice is one you make rather than one the budget makes on your behalf.
A commitment measured in hundreds of thousands of dollars and more than a decade deserves to be weighed as a decision, not arrived at one affordable month at a time. Whatever you choose, private or public, the point is to choose it with the full shape of the tradeoff in front of you.
Frequently Asked Questions
Is private school ever worth it financially?
The tuition is a cost, not an investment with a return you can count on, so "worth it" is a judgment about what the education provides relative to what the money would do elsewhere. Some families run the full comparison and decide the environment justifies the tradeoff; others decide it doesn't. The point is to make that call with the cumulative number and the alternative both in view.How do I compare tuition against investing the difference without predicting returns?
Rather than betting on a specific return, treat the invested alternative as a range built on conservative and moderate assumptions, and look at the full span rather than a single year. The goal isn't a precise forecast. It's a sense of scale, enough to see that the alternative use of the money is substantial and belongs in the decision.
What if we can genuinely fund private school and still stay on track for retirement and college?
Then the tradeoff is smaller and the decision more comfortable, which is exactly why running the numbers is worth doing. Confirming that tuition genuinely doesn't crowd out your other goals is a real answer in itself, and checking is the only way to reach it.
Does the math change if it's only one child, or only a few years of private school?
Yes. A shorter window or a single child lowers both the cumulative figure and the displacement, sometimes considerably. The same exercise applies. The numbers are just smaller, and the tradeoff may be easier to absorb.
How do we make this decision together as a couple without it becoming a fight?
One useful approach is to separate the two questions, the education one and the financial one, so the conversation can take them in sequence rather than tangling them together. Agreeing on the cumulative number first gives the discussion something concrete to work from before you weigh what the education is worth to you. Money and values don't always come apart cleanly, but a shared figure at least anchors the part that can be counted.
If you're building wealth without an inherited playbook, a clear structure makes the next decision easier. It starts with a conversation.
D'Agaro Financial Advisory is a Registered Investment Adviser located in Virginia. Registration does not imply a certain level of skill or training. This content is for educational purposes only and is not tax, legal, or investment advice.