Short answer: for most dentists, a 529 plan is the best account to save for a child’s college — contributions grow tax-free and come out tax-free for qualified education. But it should come after your own retirement and high-interest debt, and it’s easy to over-fund. Here’s how to think about it.
What’s the best way to save for college?
For the large majority of dentist families, a 529 plan is the workhorse. You contribute after-tax dollars, the money grows tax-free, and withdrawals are tax-free when used for qualified education expenses (tuition, fees, books, room and board, and up to $10,000/year of K–12 tuition). Many states also give a state income-tax deduction or credit for using their plan.
Should college come before retirement?
How much should you put in a 529?
Enough to help — not necessarily enough to cover everything. Many families aim to fund roughly a third to a half of an expected bill and plan to cover the rest from cash flow, scholarships, or student contribution. Starting early and letting compounding work matters more than large late contributions. See how much you should have saved by age to keep college in proportion to your own goals.
What if I over-fund the 529?
Historically this was the main worry: non-qualified withdrawals owe income tax plus a 10% penalty on the earnings. Two things soften it. You can change the beneficiary to another child (or even yourself for continuing education), and under the SECURE 2.0 rules, leftover 529 funds can be rolled into the beneficiary’s Roth IRA — subject to a lifetime cap, annual Roth limits, and a 15-year account-age requirement. Coordinate the details with your CPA.
Do 529 plans hurt financial aid?
Less than most parents fear. A parent-owned 529 is treated as a parental asset on the FAFSA, assessed at a maximum of about 5.6% — far gentler than student-owned assets. For most dentist households, income drives aid decisions far more than a 529 balance does.
Are there alternatives to a 529?
- Roth IRA — contributions can come out penalty-free, and it doubles as a retirement backstop, but you may be income-phased-out.
- UTMA/UGMA custodial accounts — flexible use, but the money becomes the child’s and weighs more heavily against aid.
- Taxable brokerage — full flexibility, no education restriction, but no tax break.
- Cash-flowing tuition — a real option for high earners who’d rather stay liquid.
Frequently asked questions
Usually yes, if you’ve already funded retirement. The tax-free growth compounds meaningfully over 18 years, and high earners get no benefit from most other education tax breaks anyway. The main caution is not to over-fund it at the expense of your own retirement.
Start with your own state’s plan if it offers a state tax deduction or credit — that’s an immediate return. If your state offers no benefit, you can shop nationally for low-cost plans, since you’re free to use almost any state’s 529.
You can withdraw an amount equal to the scholarship without the 10% penalty (you still owe tax on the earnings), change the beneficiary, or leave it invested for graduate school or a future grandchild.
Sources
Founder & Financial Planner · Investment Adviser Representative · Series 63 & 65
Ian McGinnis is the founder of Dental Wealth Partners and a fee-only financial planner dedicated to dentists. As an investment adviser representative (Series 63 and 65), he built the firm to give dentists coordinated, fiduciary advice across their practice, taxes, investments, retirement plans, and long-term goals — the whole picture in one strategy. A graduate of Belhaven University, Ian previously worked at Davis Private Wealth, MML Investors Services, and Northwestern Mutual, and is based in the Jackson, Mississippi area. He is the author of The Wealthy Dentist and hosts the Smiles & Cents podcast.
Keep reading
- Retirement plans for dental practices, comparedA comparison of 401(k), safe harbor, profit sharing, SEP-IRA, and cash balance plans for dental practice owners — and how to choose.
- How much should a dentist have saved by age? Net-worth benchmarksNet-worth benchmarks for dentists by age and career stage, why dentists start behind, and the savings rate that actually builds wealth.
- The backdoor Roth IRA for high-income dentists, explainedMost dentists earn too much to fund a Roth IRA directly. The backdoor Roth is a legal workaround — here’s how it works and the pro-rata pitfall to avoid.