The Retirement Account Your CPA Never Mentioned
You've done everything right. You max your 401(k) every year — $23,500 in 2025, plus the catch-up if you're over 50. You've got a solid income, a growing practice or business, and you're paying your CPA to keep things clean. So when tax season rolls around and you owe six figures to the IRS, you assume that's just the price of success.
Here's what most high-earning professionals don't know: there's a fully IRS-approved retirement account that could let you shelter $150,000, $200,000, even $300,000 or more in a single year — tax-deductible, tax-deferred, and completely legal. It's called a defined benefit plan. And if your current firm has never brought it up, that's a gap worth taking seriously.
What Is a Defined Benefit Plan — And Why It's Not Just for Big Companies?
Most people hear "defined benefit plan" and picture a corporate pension from the 1980s — something reserved for Fortune 500 employees with forty-year tenures. That framing is wrong, and it's costing high earners a lot of money.
A defined benefit plan is an IRS-qualified retirement plan, just like a 401(k). The critical difference is how contribution limits are determined. A 401(k) has a fixed annual cap set by the IRS. A defined benefit plan works the other way around: you define a target retirement benefit first, and an enrolled actuary works backward to calculate how much you're required to contribute each year to fund it. The higher your income and the closer you are to retirement age, the larger the allowable annual contribution.
Self-employed physicians, surgeons, attorneys, consultants, franchise owners, real estate professionals, and entrepreneurs all qualify. You don't need a large company or a staff of fifty. You need a business entity, consistent high income, and a proactive tax advisor who knows this strategy exists.
The Numbers: How Much Can You Actually Shelter?
This is where it gets interesting.
In 2025, the 401(k) contribution limit is $23,500. If you're 50 or older, add a $7,500 catch-up contribution for a total of $31,000. For someone earning $600,000, that's a rounding error.
A defined benefit plan operates on an entirely different scale:
- Annual contribution potential: $100,000 to $300,000+, depending on your age, income, and target benefit
- The older you are, the higher your allowable contribution — actuarial math works in your favor because there are fewer years to accumulate the required benefit
- Contributions are fully tax-deductible in the year they're made
- Growth inside the plan is tax-deferred until distribution
To make this concrete: a 52-year-old physician earning $800,000 per year could contribute upward of $275,000 to a defined benefit plan in a single year. That's $275,000 removed from taxable income — gone from the IRS's reach this year. At a 37% federal marginal rate, that's more than $100,000 in taxes deferred in year one alone. This is an illustrative example — your specific numbers depend on your age, compensation structure, and actuarial calculations — but the order of magnitude is real.
Compare that to what your 401(k) is doing and ask yourself why this conversation hasn't happened yet.
Who This Strategy Works Best For
Defined benefit plans are not for everyone. They're built for a specific profile — and if you're reading this, there's a good chance you fit it.
This strategy works best for:
- Self-employed professionals and business owners with consistent, high net income — physicians, dentists, attorneys, consultants, executives with their own entities, franchise operators
- Earners aged 45 and older who feel behind on retirement savings — the defined benefit plan is one of the most powerful catch-up tools available under the tax code
- Anyone already maxing a 401(k) and SEP-IRA who wants to go further — these plans can stack
- High earners in the $300,000–$1M+ range where marginal tax rates are at their highest and every deductible dollar carries maximum value
The results for the right client can be dramatic. One of our clients — a franchise owner in her early 50s — had been maxing her SEP-IRA at $66,000 a year and assumed that was the ceiling. We set up a defined benefit plan alongside it. Her combined annual contribution jumped to $198,000. That's an additional $132,000 removed from her taxable income — and a six-figure tax savings she had no idea she was leaving on the table, year after year.
One important note: W-2 employees generally cannot open a standalone defined benefit plan. But business owners who have consulting income, a side entity, or a professional practice structure frequently qualify. If you have any self-employment income, it's worth a closer look.
The Cash Balance Plan: A Hybrid Worth Knowing
Within the defined benefit family, one structure deserves special attention: the cash balance plan.
A cash balance plan is technically a type of defined benefit plan, but it's designed to look and feel more like an individual account. Rather than tracking a future pension benefit in abstract actuarial terms, a cash balance plan maintains a "hypothetical account" for each participant — showing a balance that grows with contributions and a set interest credit each year. It's easier to understand, easier to communicate to employees if you have them, and easier to roll over into an IRA if you wind down the plan.
Contribution limits for cash balance plans can be similar to traditional defined benefit plans — often $100,000 to $300,000+ per year, depending on age and income. Many high earners layer a 401(k) + cash balance plan together for maximum annual sheltering. The combined approach is especially effective for physicians, attorneys, and executives running their own practices or business entities.
Cash balance plans are also the preferred structure when multiple business partners or a small number of key employees are involved, because benefits can be allocated in a way that's equitable and compliant without becoming prohibitively expensive. If you're running a multi-partner medical practice or a small professional firm, this is the conversation to be having.
Before You Set One Up: What You Need to Know
A defined benefit plan is a serious financial commitment, not a quick end-of-year maneuver. Here's what to understand before moving forward:
An enrolled actuary is required. Unlike a 401(k) you can set up through a payroll provider, a defined benefit or cash balance plan requires an actuary to calculate your annual contribution obligations. This isn't a DIY tool, and it shouldn't be treated as one.
There are real administration costs. Setup and annual administration typically run $2,000–$5,000 per year depending on plan complexity. That sounds like a lot until you weigh it against the $80,000, $100,000, or $150,000 in taxes you're deferring. The ROI on a well-designed plan is rarely close.
Funding is required each year. A defined benefit plan comes with a minimum required contribution determined by your actuary. This is a multi-year commitment. If your income is highly variable or you anticipate needing to wind down the business shortly, that's an important factor to model before you set it up.
Timing matters. A defined benefit plan must generally be established before year-end to generate deductions for that tax year. This is not an April 14th strategy. It requires year-round tax planning — knowing your income trajectory in advance, modeling your options, and executing before deadlines, not after them.
That last point is worth underscoring. Most accounting firms operate reactively — they look back at what happened and file accordingly. Tax planning for high income earners — the kind that actually moves the needle — happens prospectively, throughout the year, with a team that's actively looking for what you haven't set up yet.
The Conversation You Haven't Had
If you're earning $300,000 or more and your current CPA has never mentioned a defined benefit plan, a cash balance plan, or a combined 401(k) stacking strategy, that's not a knock on your CPA's technical skills. It's a reflection of how most firms operate. Compliance and filing are the job. Proactive, high-earner retirement strategy — the kind that saves $100,000+ in a single year — requires a different model.
That's what Roadmap Tax is built for.
Book a free 30-minute strategy session. You'll leave with a clear picture of how much you could be sheltering, what it would actually save you, and whether a defined benefit or cash balance plan fits your situation. No obligations, no vague takeaways — just a specific, numbers-driven conversation.
Phone: (619) 280-2700
Email: info@RoadmapTax.com
The account your CPA never mentioned might be the most valuable one you ever open.