Your retirement plan could be doing more than you think.

For a high earning dentist, a 401(k) may not be the end of the retirement conversation.

Once an owner is already maximizing traditional contributions, a cash balance plan can open another way to put more toward retirement while potentially reducing current taxable income. That is where the strategy gets interesting. But the goal shouldn't simply be finding another deduction.

The tax benefit comes with a commitment

Cash balance plans are defined benefit plans, and depending on age, compensation, and plan design, they can allow significantly larger contributions than a traditional defined contribution plan. For a profitable practice, that is a meaningful planning opportunity.

There is an important distinction, though. The deduction isn't free money. The practice still has to fund the plan. So the real question isn't only how much the owner can contribute. It is whether the practice has enough consistent cash flow to make those contributions without creating pressure somewhere else.

Two details belong in that conversation early. A cash balance plan typically has to include eligible employees, so the cost of team contributions is part of the math, and for a practice with a large hygiene and clinical team it can decide whether the plan works at all. And these plans are generally designed to be funded over multiple years rather than started and stopped, so the contribution has to be sustainable, not a one-year move. Your plan administrator and CPA can model both.

Look at the practice's cash flow first

A cash balance plan can make a lot of sense for a practice with strong, predictable profitability and an owner focused on building retirement assets. It makes much less sense for a practice that needs its cash for growth, debt reduction, equipment, or working capital.

That is why I treat it as a capital allocation decision, not simply a tax strategy. If the practice has excess cash and the owner has a long-term retirement objective, moving more of that cash into a tax-advantaged plan can be highly valuable. If the practice needs the cash to grow, the deduction may not be worth the flexibility you give up.

The bigger question

The right question isn't how much can I deduct. It is what is the best use of this year's profit.

For the right practice, particularly one with high profitability and consistent cash flow, a cash balance plan can be a powerful tool. But the strategy should fit the practice's financial position rather than dictate it.

A good tax strategy doesn't just lower this year's bill. It improves the owner's long-term financial position.

This article is general education, not tax or legal advice. Rules, limits and eligibility depend on your situation, so review any decision with your CPA or tax advisor.

Frequently asked questions

Austin Moffat

Founder of DSO CFO, a dental-specialized CFO firm serving practices and DSOs nationwide. Cash flow and profit work, taught in plain language.