You're 55 and Maxing Your 401(k). Here's How to Add $150,000+ in Retirement Savings.
You turn 55 this year. You run a business that clears $480,000. You max your 401(k) — $23,500, plus the $7,500 catch-up for being over 50. That is $31,000 a year going into retirement, and you feel good about it. You are doing more than most of your peers.
And then April comes. You write a check to the IRS for $62,000, maybe more. You look at that number and you wonder: if I am maxing everything out, why am I still writing checks this big?
The answer is that $31,000 a year is not very much relative to what you earn. The 401(k) was designed for someone earning $80,000 a year and saving at a standard rate. At your income level, maxing it out is a good start. It is not the ceiling. There is a retirement vehicle designed specifically for business owners and self-employed professionals past 50 who need to save at a completely different scale. It is called a defined benefit plan, and it does not have a $23,500 limit.
The $31,000 Ceiling
Let us put the 401(k) limit in perspective. If you are 55 and earn $480,000, your combined employee deferral ($23,500) and catch-up contribution ($7,500) total $31,000 a year. That is about 6.5% of your income going into tax-deferred retirement savings.
A financial advisor would tell you that 15% to 20% is a more realistic target for someone in their mid-50s who needs to retire on their own terms. At 20% of $480,000, you would need to save $96,000 a year. The 401(k) leaves a $65,000 gap.
That gap is the reason the April check keeps getting bigger. You are not saving enough to meaningfully reduce your taxable income, and the IRS takes the difference.
The standard advice is to accept this and pay the tax. But the tax code provides a second option for business owners: a plan whose contribution limit is based on the retirement benefit you want, not an arbitrary dollar cap.
A Defined Benefit Plan Is Designed for This
A defined benefit plan is the type of retirement plan your parents' generation called a pension. The difference is that instead of your employer funding it for a whole company, you fund it for yourself — and the contribution limits are based on what it would take to pay you a specific monthly benefit at retirement age.
Here is how it works for a business owner at 55. You decide what annual retirement income you want — say, $120,000 a year starting at age 65. An actuary calculates how much needs to be set aside each year between now and then to fund that benefit, given reasonable investment returns. For a 55-year-old with ten years until retirement, that annual contribution is typically between $150,000 and $250,000, depending on the plan design and your income.
That contribution is tax-deductible. Every dollar you put in reduces your taxable income for the year, dollar for dollar.
Compare that to the 401(k). At $31,000 a year in contributions, a defined benefit plan can shelter five to eight times more. If you are in the 35% federal bracket plus California state tax, the deduction alone is worth $60,000 to $100,000 in tax savings in a single year — more than the entire 401(k) contribution.
And unlike the 401(k), where your contributions are capped by statute, the defined benefit plan's limit is driven by your age, your income, and the benefit you want to fund. The older you are, the more you can contribute.
Why Being Over 50 Changes the Math
If you are 35 and set up a defined benefit plan, the actuary spreads the funding over 30 years. The annual contribution is modest. That is not why most people set up these plans.
If you are 55, the funding window is ten years. The same retirement benefit requires a much larger annual contribution. This is a feature, not a problem. It means that someone who started saving late — or who spent their 40s building a business instead of funding retirement — can catch up in a way the 401(k) rules do not allow.
Consider a 55-year-old business owner earning $480,000. With the 401(k) maxed at $31,000, her taxable income is roughly $449,000 before other deductions. She owes about $152,000 in federal tax. If she adds a defined benefit plan with a $180,000 contribution, her taxable income drops to $269,000. Her federal tax drops to roughly $79,000. That is a difference of about $73,000 in tax savings in one year — and that $180,000 is growing tax-deferred in her retirement account.
The same math works at lower income levels, though the contribution scales down proportionally. A business owner earning $300,000 at 55 can typically contribute $80,000 to $120,000 through a defined benefit plan, depending on the actuary's assumptions.
How It Coordinates With Your Entity and Other Plans
A defined benefit plan does not replace your 401(k). It runs alongside it.
If you have an S corp, you are on payroll with a reasonable salary. You can contribute the employee portion of the 401(k) from your salary ($23,500 plus catch-up). You can also make an employer profit-sharing contribution to the 401(k) of up to 25% of your compensation. And then on top of both, you fund the defined benefit plan with contributions from the business.
The total across all plans — 401(k) employee deferral, 401(k) profit sharing, and defined benefit — must stay within Section 415 of the tax code, which caps total annual additions across all defined contribution plans at $70,000 for 2026. But the defined benefit plan operates under a separate limit. That is the key: the defined benefit side is not constrained by the $70,000 cap that applies to 401(k)s and profit-sharing plans.
What this means in practice is that a business owner with an S corp can stack: $31,000 in the 401(k), up to $39,000 in profit sharing, and $150,000 or more in the defined benefit plan. That combination can put you well over $200,000 a year in tax-deferred savings. (We covered the numbers on cash balance plans in more detail in a previous post.)
If you operate as a sole proprietor (Schedule C) with no entity, you can still set up a defined benefit plan. The contribution is based on your net self-employment income. But the interaction with self-employment tax and the lack of a separate employer entity means the structure is less flexible than doing it through an S corp. That is one reason the entity conversation and the retirement conversation belong together — they are not separate decisions.
The Commitment (and Why It Still Works)
A defined benefit plan is not a casual year-to-year decision. Once you set it up, you are generally required to make the planned contribution each year. Missing a contribution can trigger IRS penalties and actuarial recalculations.
This sounds restrictive. In practice, for a business with steady income, it is a forcing mechanism. You commit to saving at a meaningful level, and the tax deduction makes it easier to follow through. The plan design can include some flexibility — you can fund at a minimum level in a lean year and increase contributions when income is higher — but it is not a contribute when you feel like it vehicle.
Setup costs typically run $2,000 to $5,000 for a solo plan. Annual actuarial and administration fees are $1,500 to $3,000. Compared to the tax savings, those costs are negligible — the plan pays for itself in the first year.
The businesses that benefit most from a defined benefit plan are those with consistent income above $250,000 a year, an owner who is 50 or older, and a genuine retirement savings gap. If that describes your situation, the question is not whether the math works. It works. The question is whether you are ready to commit to saving at the level the math demands.
FAQ
What is a defined benefit plan for a business owner?
A defined benefit plan is a retirement plan that promises a specific monthly benefit at retirement. Business owners fund it with tax-deductible contributions calculated by an actuary, based on age, income, and the desired benefit. Unlike a 401(k), there is no fixed dollar limit — the contribution is whatever is needed to fund the promised benefit.
How much can a 55-year-old business owner contribute to a defined benefit plan?
A 55-year-old with ten years until retirement can typically contribute between $150,000 and $250,000 a year, depending on income and plan design. This is in addition to the 401(k) and any catch-up contributions.
Can I have a defined benefit plan and a 401(k) at the same time?
Yes. They run alongside each other. The 401(k) covers employee deferrals and profit sharing, while the defined benefit plan covers the pension-style funding. They must be coordinated under IRS rules, but a combined strategy is common and well-documented.
Do I need an S corp to set up a defined benefit plan?
No. Sole proprietors, partnerships, and corporations can all set up defined benefit plans. However, the structure works differently for each entity type, and an S corp with payroll often provides the most flexibility for combining multiple retirement plans.
What happens if my business has a bad year and I cannot make the contribution?
The plan can be designed with some flexibility — a minimum funding level in lean years — but defined benefit plans generally require consistent annual contributions. Missing a contribution triggers IRS penalties and an actuarial recalculation. This is not the right vehicle for unpredictable or seasonal income.
How is a defined benefit plan different from a cash balance plan?
A cash balance plan is a type of defined benefit plan that states the benefit as a hypothetical account balance rather than a monthly pension. The contribution limits and tax treatment are similar. Cash balance plans are more common for small businesses because the benefit is easier for owners to understand and track.
Book a free 15-minute discovery call to find out whether a defined benefit plan fits your numbers. No obligation, no pitch — just a conversation about what is actually possible. Call (619) 280-2700 or email info@RoadmapTax.com.
