529 Plans Explained: When to Open One and How Much to Put In

New baby. Great. Now someone's telling you to open a 529 plan, your parents are asking if they can contribute, and you haven't slept in three weeks. The last thing you need is more financial noise.

Here's what you actually need to know about 529 plans: how they work, how much to put in, when to open one, and what the right priority order looks like when you've got a lot of competing financial goals.

What a 529 plan actually is (and why Michigan's MESP is worth knowing about)

A 529 plan is a tax-advantaged savings account for education expenses. Contributions go in after-tax, the money grows tax-free, and withdrawals are tax-free when used for qualified expenses: tuition, room and board, books, fees, and even K-12 up to $10,000 per year.

Michigan residents have a specific plan to know about: the Michigan Education Savings Program, or MESP. It's the state-sponsored 529 plan, and the reason it matters is the state tax deduction.

In 2026, Michigan residents can deduct up to $5,000 in contributions per year if you're single, or $10,000 if you're married filing jointly. That's a real, immediate tax benefit you get just for using MESP instead of an out-of-state plan.

You're not locked out of other investment options by going with MESP. The plan offers a range of index funds and age-based portfolios. For most families just getting started, the age-based option handles the investment allocation automatically, shifting from aggressive to conservative as college approaches.

How much to contribute to a 529 plan each year

There's no universal right answer. But here's a practical framework to work from.

If your goal is to cover roughly half of in-state tuition at a Michigan public university, you'd need somewhere around $60,000 to $80,000 saved by the time your child turns 18. At an assumed 6% average annual return, that works out to approximately $200 to $250 per month starting from birth. That's a reasonable target for families with the capacity to hit it.

Most people I work with can't dedicate that full amount right away. That's fine. Starting with $50 or $100 per month is better than waiting. Time in the market matters more than the perfect contribution number.

For Michigan residents, the $10,000 married filer deduction on MESP is a smart annual target if you can get there. At Michigan's 4.25% income tax rate, that's a $425 state tax savings per year just from the deduction.

The right priority order before you open a 529 plan

Here's the thing: a 529 plan is not the first account you should fund after a baby is born. The priority order matters.

Work through this list before directing serious money into a 529:

• Employer 401(k) match: Capture the full match first. That's an immediate 50% to 100% return on your money. Nothing beats it.
• High-interest debt: Any debt above 7% to 8% should be tackled before college savings. The guaranteed return from paying it off outpaces what you'd expect from investments.
• Emergency fund: Three to six months of expenses in cash, before anything else. A 529 isn't accessible for non-education use without a penalty, so you'll want liquid savings too.
• Roth IRA or additional retirement savings: Max your tax-advantaged retirement space before going heavy on the 529. You can borrow for college. You can't borrow for retirement.
• 529 contributions: Once those boxes are checked, a 529 is an excellent place for any remaining savings capacity.

I've seen clients skip retirement contributions to fully fund a 529, and it's the wrong trade. College is 18 years away. Retirement might be 30. The compounding difference is enormous.

If you're still building the foundation and figuring out how all of these pieces fit together, the full financial checklist for new parents walks through every major decision in order, from life insurance to emergency funds to savings accounts.

What happens if your kid doesn't go to college

This is the question that stops a lot of parents from opening a 529. Fair concern. But what if they don't go to college? Here's the actual answer.

You have three options if your child doesn't use the funds for college:

First, you can change the beneficiary designation to another family member. A sibling, a cousin, even yourself. As long as the new beneficiary uses the funds for qualified education expenses, there's no penalty.

Second, since 2024, you can roll unused 529 funds into a Roth IRA for the beneficiary. The lifetime rollover limit is $35,000, and the account must have been open for at least 15 years.

This is a significant rule change that removes a lot of the downside risk from opening a 529 early. A kid who doesn't go to college can still end up with a head start on retirement savings.

Third, you can withdraw the money for non-qualified expenses. The earnings portion is subject to income tax plus a 10% penalty. But the contributions (your original after-tax dollars) come back out without penalty. So worst case, you pay taxes on the growth, not a total loss.

The new Roth IRA rollover rule has changed how I think about the risk of overfunding a 529. It's not zero risk. But it's a lot more forgiving than it used to be.

For a broader look at how your savings accounts and investment accounts should work together, the investing order of operations post covers the full sequence from your first dollar to your last.

Big financial transitions move fast and the decisions you make in the first 60 days matter more than most people realize. If you just had a baby and the financial to-do list is piling up, I'd be glad to help you sort through it. Schedule a free intro call here.

Frequently Asked Questions

How much should I contribute to a 529 plan each year?

There's no single right number, but a practical starting point is $200 to $300 per month if you want to cover roughly half of in-state tuition costs over 18 years. Michigan MESP contributions are deductible up to $5,000 per year for single filers and $10,000 for married filers in 2026, so that deduction is often a good annual target to aim for. Start with what you can afford and increase contributions as your income grows.

What is a 529 plan and how does it work?

A 529 plan is a tax-advantaged savings account designed for education expenses. Your contributions grow tax-free, and withdrawals are tax-free when used for qualified expenses like tuition, room and board, books, and fees. Michigan residents who use the MESP (Michigan Education Savings Program) also receive a state income tax deduction on contributions up to $5,000 single or $10,000 married per year in 2026.

What happens to a 529 plan if my child does not go to college?

You have several options. You can change the beneficiary designation to another family member, including yourself. Since 2024, unused 529 funds can also be rolled into a Roth IRA for the beneficiary, up to a lifetime maximum of $35,000, as long as the account has been open for at least 15 years. If you withdraw for non-qualified expenses, the earnings portion is subject to income tax plus a 10% penalty, but your original contributions come back out tax-free.

Should I fund a 529 plan before maxing out my retirement accounts?

Retirement comes before a 529 plan in the priority order for most families. Capture your full 401(k) employer match first, fund your Roth IRA or other retirement accounts, then direct dollars toward a 529. You can borrow for college. You can't borrow for retirement, and the compounding difference over 30 years is significant.

What is the Michigan MESP and is it better than other 529 plans?

MESP stands for Michigan Education Savings Program. It's Michigan's state-sponsored 529 plan, and the main advantage for Michigan residents is the state income tax deduction: $5,000 for single filers and $10,000 for married filers in 2026. If you live in Michigan and file a Michigan state tax return, that deduction alone often makes MESP the default starting point over an out-of-state plan.

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Disclosure: This article is for educational purposes only and does not constitute personalized investment, tax, or legal advice. Individual situations vary. Please consult a qualified financial professional before making financial decisions. Villaire Financial, LLC is a registered investment adviser. Schedule a free intro call if you'd like to talk through your specific situation.