The Retirement Account Most Dentists Have Never Used — And Why It Matters Before You Sell

You've maxed out your 401(k). You're doing profit sharing. You're doing everything your CPA told you to do.

And you're still writing a check to the IRS every April that makes you want to reconsider the whole thing.

There's a tool most dental entrepreneurs have never been introduced to — not because it's obscure, but because most advisors don't know how to set it up. It's called a Cash Balance Plan, and for the right practice owner, it can shelter $150,000 to $300,000 or more per year in pre-tax income.

That's not a typo.

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What a Cash Balance Plan Actually Is

A Cash Balance Plan is a type of defined benefit plan — a pension, technically — that behaves like a defined contribution plan. Each participant has a hypothetical account that grows annually based on two credits: a pay credit (typically a percentage of compensation) and an interest credit (either a fixed rate or a rate tied to an index like the 30-year Treasury).

The key difference from a 401(k) is scale. For 2025, the maximum 401(k) employee deferral is $23,500, with a catch-up contribution of $7,500 for those 50 and older. Total defined contribution limits — employee plus employer — top out at $70,000. A Cash Balance Plan stacks on top of those limits entirely.

The contribution potential scales with age:

Age	Approximate Max Cash Balance Contribution (2025)
45	~$130,000
50	~$185,000
55	~$240,000
60+	~$300,000–$336,000

Combined with a 401(k) and profit-sharing plan, a dentist in their late 50s can shelter $350,000 to $400,000 in a single year. All of it deductible. All of it growing tax-deferred.

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Why This Matters More Than Most Dentists Realize

The math is straightforward. A dentist earning $800,000 in W-2 income who contributes $250,000 to a Cash Balance Plan reduces their taxable income to $550,000. At the top federal marginal rate of 37%, that's $92,500 in federal taxes deferred in a single year — not avoided permanently, but deferred to a point when income (and likely tax rates) will be lower.

Over five years, that's $462,500 in deferred federal taxes alone, before accounting for state income taxes.

But the more important conversation isn't about the annual savings. It's about what happens when you sell.

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The Pre-Sale Window Most Dentists Miss

Here's where Cash Balance Plans become genuinely powerful in the context of exit planning.

When a dental practice sells — whether to a DSO or a private buyer — the proceeds are typically a combination of ordinary income and capital gains. The ordinary income portion (including depreciation recapture and non-compete payments) is taxed at the highest marginal rates. A well-timed Cash Balance Plan can absorb a significant portion of that income in the years leading up to the sale.

The strategy works like this: establish the plan two to four years before the anticipated exit. Maximize contributions each year. By the time the sale closes, you've moved a substantial sum — potentially $600,000 to $1,000,000 or more — into a tax-deferred vehicle that can be rolled directly into an IRA at termination.

The result is a lower adjusted gross income in the years before the sale, which also has downstream effects: reduced net investment income tax exposure, potential preservation of the Section 199A qualified business income deduction, and a cleaner wealth transition picture post-close.

One important note: Cash Balance Plans require a minimum of three to five years of funding to be most effective. The window to start is not the year you decide to sell — it's the year you start thinking about selling.

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The Combo Plan Structure

The most effective implementation for a dental practice owner isn't a Cash Balance Plan in isolation. It's a combo plan: a 401(k) with profit sharing stacked beneath a Cash Balance Plan.

The structure looks like this:

• 401(k) employee deferral: $23,500 (plus $7,500 catch-up if 50+)
• Profit sharing contribution: up to 25% of W-2 compensation, combined limit $70,000
• Cash Balance contribution: $150,000–$300,000+ depending on age and actuarial design

All three layers are deductible. All three grow tax-deferred. The combined annual contribution for a dentist in their mid-50s can exceed $350,000 — a number that's simply not achievable through any other qualified plan structure.

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What You Need to Know Before You Start

Cash Balance Plans are not DIY. They require an actuary to certify the plan annually and a third-party administrator to manage compliance. They also require a Form 5500 filing each year. The administrative cost is real — typically $2,000 to $5,000 annually — but it's a rounding error relative to the tax savings.

A few things worth understanding before you engage:

Minimum funding is mandatory. Unlike a SEP-IRA or profit-sharing contribution, Cash Balance contributions are required each year once the plan is established. If practice income drops significantly, the plan can be amended or frozen — but it cannot simply be skipped.

Employee costs are real but manageable. If you have employees, the plan must meet IRS nondiscrimination testing. Careful actuarial design can minimize the cost of covering employees, but it's a factor that needs to be modeled before the plan is established.

The SECURE Act expanded flexibility. Under the SECURE Act, a Cash Balance Plan can be adopted after year-end, up to the tax filing deadline including extensions, for the plan's first year. This creates a meaningful planning window for dentists who want to capture a deduction for a year that has already closed.

Termination and rollover is clean. After three to five years of funding, most owners terminate the plan and roll the balance directly into an IRA. The rollover is tax-free. The funds then grow inside the IRA under standard rules. There is no penalty, no complexity — just a transfer from one tax-deferred vehicle to another.

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The Question Worth Asking

If you're a dental practice owner earning more than $400,000 per year and you're not running a Cash Balance Plan, the question isn't whether you qualify. You almost certainly do. The question is how much you've left on the table — and how many years remain to close the gap before you exit.

This is a conversation worth having with a CPA who understands dental practice structures and a financial advisor who can model the interaction between the plan, your exit timeline, and your post-sale wealth architecture.

The plan itself is a tool. Like any tool, its value depends entirely on how it's used — and when.

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Tim McNeely, CFP® CIMA® CEPA® CPFA®, is an Exit Architect for dental entrepreneurs with $5M+ practices. This article is for educational purposes only and does not constitute tax or legal advice. Consult a qualified tax professional before implementing any retirement plan strategy.