Most people know traditional pensions, which promise a monthly check in retirement, and 401(k) plans, which give employees an individual account. A cash balance plan is a hybrid. Legally, it is a defined benefit pension plan, but each participant has a hypothetical account balance that grows with annual credits, making it easier to understand. Large employers have used cash balance plans for decades, and they have become popular with small business owners and professionals, such as doctors, lawyers, and consultants, who want to save far more for retirement than a 401(k) allows. This guide explains how cash balance plans work, who benefits, contribution limits, costs, and risks. Consult a qualified retirement plan professional and actuary before setting one up.
What a cash balance plan is
A cash balance plan is a defined benefit plan that defines each participant’s benefit as a stated account balance. Each year, the participant’s account receives:
- A pay credit, such as a percentage of compensation or a flat dollar amount
- An interest credit, at a fixed rate or a variable rate tied to an index, such as a Treasury yield
The account is hypothetical, meaning it is a bookkeeping record rather than an individual investment account. The employer contributes to a pooled trust and invests the assets. The employer bears the investment risk: if investments underperform the promised interest credit, the employer must contribute more.
How it differs from a 401(k)
| Feature | Cash balance plan | 401(k) |
|---|---|---|
| Plan type | Defined benefit | Defined contribution |
| Who contributes | Employer | Mainly employees, often with employer match |
| Investment control | Employer manages pooled assets | Employees choose investments |
| Investment risk | Employer | Employee |
| Benefit | Promised account balance | Account value based on market performance |
| PBGC insurance | Generally yes, with exceptions | No |
| Annual funding | Required, actuarially determined | Flexible |
How it differs from a traditional pension
A traditional pension promises a monthly benefit based on salary and years of service, often calculated near retirement. A cash balance plan expresses the benefit as an account balance, which is easier for employees to understand and track. Cash balance participants can typically take their vested benefit as a lump sum when they leave the company, and roll it into an IRA or another employer’s plan, or choose an annuity.
Why business owners use cash balance plans
Large contributions
Because contribution limits for defined benefit plans are based on the benefit needed to fund retirement, they can be much higher than defined contribution limits, especially for owners in their 50s and 60s. Contribution amounts are calculated by an actuary based on age, compensation, and plan design.
For 2026, the maximum annual benefit a defined benefit plan can provide is generally $290,000 per year at retirement age, which supports large lump-sum account balances. For older, high-earning owners, this can allow annual contributions well into six figures, far above the defined contribution limit.
Tax deductions
Employer contributions are generally tax deductible for the business, and participants are not taxed until they receive distributions.
Pairing with a 401(k)
Many small businesses combine a cash balance plan with a 401(k) and profit-sharing plan. Owners can make 401(k) deferrals and profit-sharing contributions and also receive cash balance credits, significantly increasing total retirement savings.
Who benefits most
Cash balance plans are often best for:
- Business owners and partners with high, steady income
- Older owners, who can make larger contributions because they have fewer years until retirement
- Professional practices, such as medical, dental, legal, and accounting firms
- Businesses with few employees or where owners are willing to make meaningful contributions for staff
Employee coverage requirements
Cash balance plans must meet nondiscrimination and coverage rules. Generally, the plan must provide meaningful benefits to non-owner employees, not just the owners. Plan design, such as pay credit levels for different groups, is tested to ensure fairness. Employee benefits typically vest after no more than three years of service.
Costs and administration
Cash balance plans are more complex and expensive than 401(k) plans. Costs may include:
- Setup fees for plan design and documents
- Annual actuarial fees to calculate required contributions and certify funding
- Administrative and recordkeeping fees
- Investment management fees
- PBGC premiums, if the plan is covered
- Annual reporting, such as Form 5500
How to set up a cash balance plan
Setting up a plan typically involves several steps:
- Review your finances. Make sure your business has stable, sufficient cash flow to fund required contributions for several years.
- Work with specialists. A third-party administrator, an enrolled actuary, and often a financial advisor design the plan and run the calculations.
- Design the formula. Choose pay credit levels for owners and employees, the interest crediting rate, vesting, and normal retirement age.
- Run nondiscrimination testing to confirm the design satisfies IRS rules, especially if paired with a 401(k).
- Adopt the plan document before the end of the tax year, or by the business’s tax filing deadline under rules expanded by the SECURE Act, depending on circumstances.
- Fund contributions by the minimum funding and tax deduction deadlines, which your actuary and administrator will track.
- File annual reports, including Form 5500 and actuarial certifications.
Starting the conversation well before year-end gives specialists time to design and test the plan properly.
PBGC coverage
The Pension Benefit Guaranty Corporation insures most defined benefit plans, including cash balance plans, up to certain limits. However, plans sponsored by professional service employers, such as doctors or lawyers, with 25 or fewer active participants, are generally exempt from PBGC coverage. Plans covering only the business owners are also generally exempt.
Risks and considerations
Required contributions
Unlike a 401(k) profit-sharing plan, where contributions can be flexible, a cash balance plan requires the employer to fund benefits each year according to actuarial calculations. Businesses with unpredictable income may find this burdensome. Plans can sometimes be amended to reduce future benefits, but not past ones.
Investment risk
Because the employer guarantees interest credits, poor investment returns may require additional contributions. Conversely, excess returns may create overfunding issues. Conservative investment strategies are common.
Long-term commitment
The IRS expects qualified plans to be permanent. Terminating a plan within a few years without a valid business reason may raise questions. Plan to maintain a cash balance plan for several years.
Distributions
Participants generally can receive their vested benefit when they leave the employer, at normal retirement age, or when the plan terminates. Options usually include a lump sum, which can be rolled into an IRA or another plan, or an annuity. Spousal consent is generally required for a lump sum instead of a joint and survivor annuity for married participants.
An example
Dr. Patel, 55, owns a medical practice with five employees and earns a high, stable income. She already maximizes her 401(k) and profit-sharing contributions. Her advisor and actuary design a cash balance plan that lets her contribute a large additional amount each year, deductible for the practice, while providing pay credits for her employees. Over 10 years, the plan helps her build substantial retirement savings, and she can roll her balance into an IRA when she retires.
Related reading: Backdoor Roth IRA: Step-by-Step Rules, the Pro-Rata Trap, and Reporting on Form 8606.
Frequently Asked Questions
What is a cash balance plan?
It is a defined benefit pension plan that expresses benefits as an account balance, credited each year with pay credits and interest credits.
How much can you contribute to a cash balance plan?
Contributions are actuarially determined based on age, compensation, and plan design. Older high earners can often contribute much more than 401(k) limits allow.
Can you have a 401(k) and a cash balance plan?
Yes. Many businesses pair a cash balance plan with a 401(k) and profit-sharing plan to maximize savings.
Is a cash balance plan insured by the PBGC?
Usually yes, but plans of small professional service employers with 25 or fewer active participants and plans covering only owners are generally exempt.
What happens to a cash balance plan when you leave a job?
You can typically take your vested balance as a lump sum, rolling it to an IRA or another plan, or choose an annuity.
This article is for general informational purposes only and is not legal, medical, tax, or financial advice. Rules vary by state and change over time; confirm details with the relevant agency or a licensed professional.
