Cash Balance Plan Contribution Limits by Age: A Tax Planning Guide for Physicians
Updated: 5 hours ago
You max out your 401(k). You do the backdoor Roth. Then April comes and the federal bill still has six figures in it.
At some point a colleague mentions a cash balance plan and says something like "I put $250,000 in mine last year." So you search for the cash balance plan contribution limits, and every page shows you a tidy table by age with no explanation of where the numbers come from.
Here is what those tables leave out. The IRS doesn't set a fixed dollar contribution limit for a cash balance plan. It caps the benefit the plan can pay you in retirement, and an actuary works backward from that cap to your contribution. Once you see how that works, the numbers make sense, and so does the reason yours may look nothing like your colleague's.
In this blog
What Are the Cash Balance Plan Contribution Limits for 2026?
There is no fixed annual contribution limit for a cash balance plan. For the 2026 tax year, the law caps the annual benefit a defined benefit plan can pay at $290,000, up from $280,000 in 2025. Your yearly contribution is whatever an actuary calculates it takes to fund toward that benefit.
A cash balance plan is a type of defined benefit plan. It looks like an account on your statement. Each year you get a "pay credit" (such as a percentage of pay) and an "interest credit," as the Department of Labor explains.
Two 2026 numbers from IRS Notice 2025-67 anchor everything:
Annual benefit limit (section 415(b)): $290,000
Maximum compensation the plan can count (section 401(a)(17)): $360,000
So if you see "the 2026 cash balance limit is $290,000," read it as a limit on the benefit at retirement. It is not what you can deposit this year. That mix up shows up on a lot of pages.
Why Does Your Age Change How Much You Can Contribute?
Think of the benefit cap as a bucket that has to be full by retirement. The bucket is the same size for everyone. What changes is how much time you have to fill it.
The actuary figures out the lump sum it would take to pay the capped benefit at your plan's retirement age. Then they spread the funding over the years you have left. That funding math, not a fixed IRS number, is what the age tables you see online are trying to estimate.
The actuary can't pick flattering assumptions, either. The Internal Revenue Code sets guardrails:
The interest rate used to adjust the benefit limit can't be lower than the greater of 5% or the plan's own rate (section 415(b)(2)(E)).
Lump sums are valued using the IRS "applicable mortality table" and an applicable interest rate (section 417(e)(3)).
Retirement age matters. The limit is reduced actuarially for benefits that start before age 62 and increased actuarially for benefits that start after 65 (section 415(b)(2)(C) and (D)).
IRS Publication 560 sums up the defined benefit deduction in one line: it's "based on actuarial assumptions and computations." Two physicians the same age can get very different numbers for exactly this reason.
Cash Balance Plan Contribution Limits by Age: What the Tables Show (and Don't)
Every age table you find online is an estimate. It reflects one firm's assumptions about interest rates, retirement age, mortality, and pay. Nothing in IRS guidance publishes an age by age maximum, so any dollar figure in a "cash balance plan contribution limits by age" chart is illustrative.
What the law does set by age is something most of those charts skip: how much of the $290,000 benefit cap you can reach at all.
How Your Age When the Plan Starts Caps Your Benefit
If you have fewer than 10 years of participation, the dollar limit is multiplied by a fraction, your years of participation over 10 (section 415(b)(5)(A)). So the age you start the plan, compared with the plan's retirement age, puts a ceiling on your benefit.
Here's what that looks like for a plan with a retirement age of 62, using the 2026 dollar limit:
Age when you join: 50 or younger
Years of participation by 62: 12 or more
Share of the dollar limit: 100%
Maximum annual benefit at retirement (2026 dollars): $290,000
Age when you join: 55
Years of participation by 62: 7
Share of the dollar limit: 70%
Maximum annual benefit at retirement (2026 dollars): $203,000
Age when you join: 58
Years of participation by 62: 4
Share of the dollar limit: 40%
Maximum annual benefit at retirement (2026 dollars): $116,000
Age when you join: 60
Years of participation by 62: 2
Share of the dollar limit: 20%
Maximum annual benefit at retirement (2026 dollars): $58,000
These are caps on the benefit at retirement, not contribution amounts. They also sit alongside the cap based on pay covered below, and the lower of the two wins. A plan with a later retirement age gives you more years of participation and can change the math, which is one more thing your actuary will model.
Your starting age alone doesn't tell you the yearly number. Your pay, the plan's assumptions, and the phase in all feed the actuary's calculation. What these figures show is that the biggest figures in online age charts may not apply to a brand new plan.
The 401(k) Numbers That Stack on Top
When you pair a cash balance plan with a 401(k), these verified 2026 figures from IRS Notice 2025-67 sit alongside it:
Your age in 2026: Under 50
401(k) salary deferral: $24,500
Catch up: None
Your age in 2026: 50 to 59
401(k) salary deferral: $24,500
Catch up: $8,000
Your age in 2026: 60 to 63
401(k) salary deferral: $24,500
Catch up: $11,250
Your age in 2026: 64 and older
401(k) salary deferral: $24,500
Catch up: $8,000
The age 60 to 63 catch up takes the place of the regular $8,000 catch up for those four years. It isn't added on top.
One 2026 change for high earners: if your prior year wages from the plan sponsor were over $150,000, your catch up contributions must go in as Roth, per the IRS. That means they no longer reduce your taxable income for the year. Employer profit sharing sits on top of all this, and the 6% of pay level matters for reasons we'll get to shortly.
Is There a Lifetime Limit on a Cash Balance Plan?
Not as a dollar amount in the tax code. The "lifetime limit" you see quoted is really the lump sum value of the maximum annual benefit at your plan's retirement age.
That lump sum depends on the same assumptions that drive your annual contribution: the interest rate, the mortality table, and the retirement age. When rates move, the lifetime figure moves too. Different sites quote different "lifetime caps" for this reason, and we don't publish one.
What happens when you get close to the maximum? Your plan can't keep promising benefits above the cap, so you’ll need a plan for what comes next.
One rule shapes that decision. The IRS says retirement plans "must be established with the intention of continuing indefinitely." If you do terminate a plan, all affected participants must be 100% vested. A cash balance plan is a commitment over multiple years, not a one year deduction.
What Can Shrink Your Cash Balance Plan Limit?
Age gets all the attention. These three rules get less, and they can matter just as much.
The Participation Rule for Your First 10 Years
We showed this one by age above. With three years of participation at retirement, the dollar limit is 3/10 of $290,000, or $87,000 a year in 2026 dollars.
A physician who opens a plan at 60 with a retirement age of 62 is capped at 20% of the dollar limit.
The 100% of Pay Cap
Your benefit can't exceed the lesser of the dollar limit or 100% of your average compensation for your three years with the highest pay (section 415(b)(1)). The plan can also count only $360,000 of pay for 2026.
A similar 10 year phase in applies to this pay based limit, measured by years of service instead of years of participation (section 415(b)(5)(B)).
Retiring Before 62
If your plan's retirement age is earlier than 62, the benefit cap is reduced. An earlier retirement age can mean a smaller allowable benefit.
How Much Can You Contribute With a Cash Balance Plan and a 401(k) Together?
Most physicians with a cash balance plan also run a 401(k). The layers usually stack like this:
Your own 401(k) salary deferral: $24,500 for 2026.
Catch up if you're 50 or older: $8,000, or $11,250 if you're 60 to 63.
Employer profit sharing into the 401(k). The section 415(c) limit for defined contribution plans is $72,000 for 2026.
The cash balance contribution on top.
Step 3 is where the tax code gets fussy. When a business sponsors both types of plans, section 404(a)(7) caps the combined deduction at the greater of 25% of compensation or the amount needed to meet the defined benefit plan's minimum funding. But the law only counts employer 401(k) contributions to the extent they exceed 6% of pay.
In plain English, keeping employer profit sharing at or under 6% of pay keeps the combined limit from biting. Your plan administrator sets that level when the plan is designed.
Also worth knowing:
Your own salary deferrals don't count toward this combined limit at all (section 404(n)).
Plans covered by the Pension Benefit Guaranty Corporation (PBGC) are not taken into account for this limit. Your plan administrator can tell you whether yours is.
Want the 401(k) side in more depth? See our breakdown of solo 401(k) contribution limits.
How Does Your Entity Set the Ceiling?
Two physicians with the same revenue can end up with very different limits depending on how the practice is set up.
S-Corp Physicians: Only Your W-2 Counts
If you own an S-corp, contributions are based on your W-2 salary, not your distributions. The IRS is direct about it: "Contributions to a retirement plan can only be made from compensation."
That creates a real trade off. Keeping salary low may look appealing, but it also lowers the pay your cash balance plan is built on, and possibly the benefit it can support. Your tax team should model both sides before setting salary. Our post on reasonable salary by specialty for S-corp physicians walks through how that salary gets set.
1099 and Sole Owner Physicians: The Circular Math
If you're self employed, the plan runs on "earned income." The tax code defines that as net earnings from self employment figured after the retirement plan deduction itself and after the deduction for half of your self employment tax (section 401(c)(2)).
The contribution reduces the income that determines the contribution. Your plan administrator solves that loop. You deduct your own contribution on Schedule 1 (Form 1040) (line 16 on the 2025 form).
Does a Cash Balance Plan Lower Your QBI Deduction?
It can. The 2025 Instructions for Form 8995 list contributions to qualified retirement plans among the deductions that reduce qualified business income. A larger contribution can mean a smaller QBI figure. Factor it in when you run the numbers.
Can Your Spouse Participate?
If your spouse is a paid employee of the practice, they may be eligible under the plan's terms. Plan contributions can only come from compensation, so the work and the pay need to be real.
Is There a Minimum Contribution Each Year?
Yes. This is the part that surprises people coming from a 401(k).
Each year, the actuary gives you a range:
A floor: the minimum required contribution under section 430. It's due 8½ months after the end of the plan year.
A ceiling: the maximum deductible amount under section 404(o). It includes a cushion equal to 50% of the plan's funding target, plus room for expected pay increases.
That range gives you some flexibility. In a strong year you can fund toward the top. In a leaner year you can drop toward the minimum. What you can't do is skip the minimum.
Going over the top has a cost too. Section 4972 imposes a 10% excise tax on nondeductible contributions. If you've ever wondered what happens when retirement money goes in above the limit, our post on what happens if you contribute too much to a retirement account covers the fix.
When Do You Have to Set Up and Fund the Plan?
Later than you might expect. Two rules help:
Adoption: a plan adopted after year end but by your business's tax return due date, including extensions, can be treated as adopted on the last day of the tax year (section 401(b)(2)).
Deduction: contributions made by that same extended due date can count for the prior year (section 404(a)(6)).
The separate 8½ month minimum funding deadline still applies. Put all three dates on the calendar early. If you're thinking about 2026, our list of tax moves to make before December 31 is a good place to start the conversation.
A Quick Note If You Also Have a Hospital 401(k)
Plenty of physicians have a W-2 job with a 401(k) and a side practice with their own plan. The salary deferral limit is per person, not per plan. The IRS calls it "your individual limit each calendar year no matter how many plans you're in." Your $24,500 is shared across both, so the plan at your own practice has to be designed around whatever you already defer at the hospital.
Example: Dr. Elena Voss, Age 58
Dr. Voss is a hypothetical orthopedic surgeon. She owns an S-corp, has no staff, and files jointly. Her W-2 salary is $300,000. Before any retirement contributions, the household's 2026 taxable income would be $520,000.
How her plan is set up:
She adopted her cash balance plan at 50 with a retirement age of 62. That gives her 12 years of participation, so the 10 year phase in doesn’t reduce her cap.
Her actuary’s 2026 range runs from a required minimum to a deductible maximum, and she picks $150,000, inside that range.
The $150,000 is for illustration only. Your actuary will run your own figure.
Here's the 2026 math:
401(k) salary deferral: $24,500
Employer profit sharing (6% of $300,000): $18,000
Cash balance contribution: $150,000
Total reduction in taxable income: $192,500
Taxable income after contributions: $327,500
She also makes her $8,000 age 50+ catch up. Because her prior year wages were over $150,000, it goes in as Roth for 2026, so it isn't in the pretax total above.
Using the 2026 married filing jointly brackets from Rev. Proc. 2025-32, the $192,500 comes out of these brackets:
$7,550 at 35%: $2,642.50
$108,900 at 32%: $34,848
$76,050 at 24%: $18,252
Estimated federal income tax deferred: about $55,743
What stands out:
Because profit sharing is held at 6% of pay, the combined deduction limit doesn't cut into the cash balance contribution.
This is deferral, not tax free money. Distributions are generally taxable as income in the year you receive them.
QBI, state tax, and payroll details all change the final picture. Your tax team runs the full return, not just the bracket math.
This hypothetical is for illustration only. Your results will differ.
Frequently Asked Questions
Did the Cash Balance Plan Limit Go Up for 2026?
Yes. The annual benefit limit rose from $280,000 for 2025 to $290,000 for 2026, and the compensation limit rose from $350,000 to $360,000.
Is the Cash Balance Limit Per Person or Per Plan?
Per person. The benefit limit applies to each participant, and part of it is tied to that participant's own average pay for their three years with the highest pay.
Can I Contribute to a Cash Balance Plan If I Have a W-2 Job With a 401(k)?
Often, yes, through a plan sponsored by your own practice or side business. Just remember the 401(k) deferral limit is shared across every plan you're in.
Get Your 2026 Range Before Year End
A cash balance plan can add another layer of tax deferred savings on top of your 401(k), but the number is personal. It depends on your age, pay, entity, and how long the plan has been running. Book a call and our tax team will model your 2026 range and how it fits with your 401(k), salary, Roth catch up, and QBI. You'll get prompt, dependable communication and numbers built on your facts.
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Disclaimer: This material is intended for educational and informational purposes only and does not constitute tax, legal, accounting, or financial advice. The content is general in nature and may not apply to your specific circumstances. Tax laws and financial regulations are subject to change and interpretation, and the application of these laws can vary based on individual situations. Before making any decisions, you should consult with a qualified tax advisor, legal counsel, or financial professional.
