Defined Benefit Plans for Business Owners

A defined benefit plan promises a specified benefit at retirement, typically expressed as an annual pension amount, and the employer funds the plan to meet that promise. This differs from a defined contribution plan such as a 401(k), where the contribution is defined and the eventual benefit depends on investment results. For profitable business owners, defined benefit plans have historically allowed contributions well above 401(k) limits, which is why they attract attention.

How Contribution Limits Work

The tax code limits the benefit a plan can provide rather than the contribution directly. An actuary calculates the contribution needed to fund the target benefit, based on assumptions about age, retirement date, interest rates, and mortality. The annual maximum benefit is indexed and subject to limits. Because the calculation is based on the time remaining to accumulate the benefit, older owners with fewer years to retirement often have higher permitted contributions than younger owners.

Since the actuary determines the contribution, the amount can vary from year to year, and it is not a fixed percentage. Employers must generally satisfy minimum funding requirements, which means the contribution is not optional once the plan is established.

Why Owners Consider Them

Owners commonly consider a defined benefit plan when:

• They have high, stable income and want to defer more than other plans allow.
• They are in their forties, fifties, or sixties and have limited years to build retirement savings.
• They have already maximized other plans and want additional capacity.
• Their business has few or no employees, so covering staff is manageable.

Commitments and Risks

The main tradeoff is commitment. Required contributions must be paid even in a lean year, subject to funding rules. If profit declines, owners may face pressure. Plans can be frozen or terminated, and termination has its own requirements, including distributing assets and satisfying the benefit promises.

Other risks include actuarial and administrative costs, investment underperformance that could require more funding, and compliance obligations such as annual filings. Plans also must satisfy coverage and nondiscrimination rules, which can make employees a significant cost driver. Certain professional service employers with small headcounts have historically been exempt from insurance coverage requirements by the federal pension insurer, but exemptions depend on the facts.

Combining with a 401(k)

Owners often pair a defined benefit plan with a 401(k) profit-sharing plan to maximize combined contributions. Combined plans have their own overall deduction limits, and the ordering of contributions and the coordination rules can be technical. This is a task for an experienced plan design professional.

The Employee Question

If your business has employees, they generally must be covered under the plan's eligibility rules, and the plan must not discriminate in favor of highly compensated employees. In many designs, the cost of benefits to employees is significant, and it may reduce the appeal of the plan. It is common to model both the owner's contribution and the employee cost before deciding.

Investment Strategy

Because the plan must meet an actuarial target, the investment approach is often conservative relative to the assumed interest rate. Owners should coordinate the investment policy with the actuary and the plan document, and should avoid prohibited transactions. Investments outside typical securities can complicate valuation and compliance.

A Hypothetical Illustration

Consider an owner in their late fifties with a professional practice earning substantial and predictable profit. After reviewing a 401(k) profit sharing plan, the owner asks an actuary to estimate a defined benefit design. The actuary presents a range of contributions depending on assumptions. The owner then compares the required funding with anticipated cash flow, chooses a plan that can be funded even in a weaker year, and adopts it before the year end. This example is hypothetical and only shows the process, not any specific contribution.

Establishing and Funding

A defined benefit plan generally must be adopted by a deadline that is tied to the plan year, and contributions are made on a schedule required by the funding rules. Because deadlines and rules were changed by recent legislation for some plans, confirm timing with the plan actuary.

Questions to Ask

1. What contribution range is likely at my age and income?
2. What happens if my income drops?
3. What will covering employees cost?
4. What are the annual actuarial and administrative fees?
5. What is the exit plan if I want to terminate?

Also read Cash Balance Plans Explained for Business Owners and Retirement Plans for Business Owners: An Overview.

Preparing for the Conversation with an Actuary

To get a useful illustration, bring your recent tax returns, projected income for the next several years, your date of birth and your retirement age target, and a list of employees with their pay and hire dates. Ask for a range of contribution outcomes under conservative and aggressive assumptions, along with the estimated employee cost. Ask what happens if you need to reduce or suspend funding. A candid discussion up front is far better than discovering constraints after the plan is adopted.

Consider the Exit Early

Owners who plan to sell the business or retire should discuss how the plan would be terminated and how assets would be distributed. Building the exit into the design from the start reduces surprises later.

Educational purposes only. This page is general education and is not tax, legal, or accounting advice. Tax laws change and outcomes depend on individual facts, so consult a qualified professional before acting. No result is guaranteed.