Adding a Defined Benefit Plan to Your 401(k)

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Adding a Defined Benefit Plan on Top of Your 401(k)

Maxing out your 401(k) and still writing a big check to the IRS? A cash balance or defined benefit plan can add $100,000 to $300,000+ a year in deductible contributions.

Keep your 401(k). Add the layer that does the heavy lifting.

Go Beyond the 401(k)

A free illustration of your 401(k) plus defined benefit plan

The Short Answer

Can you have a defined benefit plan and a 401(k)?

Yes. A business can sponsor both, and many high-income owners do. You keep your 401(k) salary deferrals, and the business adds a defined benefit plan, usually a cash balance plan, with much higher contribution limits that rise with age.

The two plans are designed and tested together. In most designs, owners keep their full 401(k) deferral, receive a profit sharing contribution of up to 6% of pay, and let the cash balance plan do the heavy lifting.

How It Works

How the plans work together

  • 401(k) deferral: $24,500 for 2026, plus catch-up contributions at 50 and older.
  • Profit sharing: when combined with a defined benefit plan, employer contributions are generally kept to 6% of pay to stay within the combined deduction rules.
  • Cash balance or defined benefit plan: an age-based contribution set each year by an actuary, often $100,000 to $300,000+.

Everything is tested together for nondiscrimination, which is how a well-designed plan directs most of the contributions to owners while giving staff a fair benefit.

Before and After

Example: what changes when a 50-year-old owner adds a cash balance plan

401(k) and profit sharing only Adding a cash balance plan
401(k) deferral with catch-up $32,500 $32,500
Profit sharing $47,500 $21,600 (6% of pay)
Cash balance plan None About $197,000
Total $80,000 About $251,100

Profit sharing drops to 6% of pay so the plans stay within the combined deduction rules, but the cash balance plan more than triples the total.

Hypothetical example for illustration only. Actual contributions are set by the plan’s actuary and depend on age, compensation, employees, and plan design. Assumes compensation of at least $360,000.

How We Build Your Plan

From first call to first contribution, we handle the design, the math, and the compliance.

1

Review Your Business

We look at your income, age, staff census, and current plan to see what’s possible.

2

Design Your Stack

We layer your 401(k), profit sharing, and cash balance plan around your tax goals.

3

See the Numbers First

You get a clear illustration of your deduction, your savings, and your staff cost before you commit.

4

We Run It for You

Plan documents, annual actuarial work, testing, and filings, handled every year.

Who It Works For

When does adding a defined benefit plan make sense?

  • You already max out your 401(k) and want a bigger deduction
  • Your business has steady profits you can count on for at least three to five years
  • You’re 40 or older, when age-based limits start to climb
  • You have a small staff, or staff who are younger or lower paid than the owners
  • You’re a physician, dentist, attorney, or another high earner in a professional practice
Before You Start

What to know before you add one

  • Contributions are required each year, within a range the actuary sets. There’s flexibility, but it isn’t optional like profit sharing.
  • The plan is meant to be permanent. Most owners plan to run it for at least several years. It can be amended or frozen if the business changes.
  • It needs an actuary. Annual certifications and a Form 5500 with Schedule SB are required. We handle all of it.
  • PBGC coverage may not apply. Plans covering only owners, and professional service practices with 25 or fewer participants, are generally exempt from PBGC premiums.

Not sure which type to use? See cash balance vs. defined benefit plans.

Michael, a successful business owner with no employees, wanted to maximize his retirement savings while minimizing taxes.

Through a custom-designed retirement plan stack, he and his wife were able to contribute over $575,000 across multiple plans in a single year.

This strategy not only helped secure their financial future but also generated over $222,000 in immediate tax savings, significantly increasing their cash flow and long-term wealth-building potential!

Maximizing Contributions Without Employees

James runs a construction company with high employee turnover and wanted a way to protect cash flow while maximizing retirement contributions.

Through a custom 401(k) and profit-sharing plan design, we used strategic eligibility and vesting schedules to limit costs from short-term employees while allowing ownership to maximize contributions.

This strategy protected company assets, controlled expenses, and helped James build significant retirement wealth.

Protecting Cash Flow with Smart Plan Design

Eileen, a small business owner, needed a low-cost retirement plan that would meet state mandate requirements while helping her recruit and retain high-quality employees.

Eileen used a customized 401(k) solution focused on minimizing expenses, giving Eileen a competitive edge in hiring without pulling resources away from reinvesting in her growing business.

By using tax credits, her design allowed her to stay compliant, attract top talent, and keep her financial priorities aligned.

Low-Cost Plan to Attract and Retain Talent

*These are hypothetical clients with hypothetical situations and plan designs.

Who We Are

Why business owners work with Life, Inc.

  • Everything under one roof. Plan design and administration, investment advisory, and insurance strategies, all from one team. No juggling three different firms.
  • A credentialed, in-house team. Our plan specialists hold industry designations including QKA, QPA, and AIF, and handle your plan year round.
  • Independent and unbiased. We work with the recordkeeper that fits your business and don’t take kickbacks from any of them.
  • Custom, not cookie-cutter. Every plan is designed around the owners’ tax goals first, then built to pass IRS testing.
  • Nationwide. We design and administer plans for businesses across the country.

Learn more: Cash Balance vs. Defined Benefit | Employee Costs | 2026 Savings by Age | The Retirement Plan Stack | About Us

Let’s Start With A

FREE Consultation!

Our Most

Asked Questions

Can I have a 401(k) and a defined benefit plan at the same time?

Yes. A business can sponsor both. Owners typically keep their full 401(k) deferral, receive profit sharing of up to 6% of pay, and receive large age-based contributions in the defined benefit plan.

How much can I add with a defined benefit plan?

It depends mostly on your age and income. Owners in their 40s often add around $100,000 or more a year, and owners in their late 50s and 60s can often add $250,000 to $350,000+.

Are defined benefit contributions mandatory?

Yes, within a range. The actuary sets a minimum and maximum each year, which gives you some flexibility, but the plan must be funded.

How long do I need to keep a defined benefit plan?

The IRS expects plans to be permanent, so most owners plan for at least several years. A plan can be amended, frozen, or terminated if business circumstances genuinely change.

Do I have to include my employees?

Yes, eligible employees must be covered, but the plan can be designed so most contributions go to owners. Eligibility rules, vesting, and new comparability profit sharing all help.

Is a cash balance plan a defined benefit plan?

Yes. A cash balance plan is a type of defined benefit plan that expresses each person’s benefit as an account balance, which makes it easier to understand and more flexible to design.

Can I add a cash balance plan after the year ends?

Yes. A new cash balance or defined benefit plan can generally be adopted as late as your business tax return due date, including extensions, and still count for the prior year.

Some Of Our Trusted Partners:

Life, Inc. Retirement Services does not offer tax advice. Please always consult your tax professional about your eligibility for tax credits.

 

Life, Inc. Retirement Services is a Registered Investment Advisory Firm of the state of Ohio and licensed in Florida and Maryland. All emails and communication are meant to be informative and educational and should not be considered a sale of security until proper notification and disclosures are given.