Cash Balance Plans: The Six-Figure Deduction

The $150,000 Deduction Most Employed Physicians Cannot Touch

Most attendings treat the $72,000 §415(c) ceiling as the end of tax-advantaged space. For a physician who owns a practice — solo, partner, or shareholder — it is closer to the halfway mark. A defined benefit plan, usually in its cash balance form, lets the practice make an additional deductible contribution that commonly runs $100,000 to $250,000 per year for an owner in his or her fifties, on top of the 401(k). At a combined 42% marginal rate (37% federal plus an illustrative 5% state), a $180,000 contribution defers roughly $75,600 of tax in a single year. The catch is structural: only an employer can sponsor a pension. If you are a W-2 employed physician with no ownership stake and no self-employment income, you cannot create one — your hospital would have to, and hospitals do not build pensions to shelter your income. Physicians with 1099 moonlighting income sit in between: that income can anchor a solo plan on a smaller scale. This module teaches you how these plans work, what they save, and what they demand — so when a consultant pitches one, you can judge the pitch.

Cash balance plan

A defined benefit pension that expresses each participant's promised benefit as a hypothetical account balance, credited annually with an employer pay credit and a fixed or index-tied interest crediting rate.

A defined benefit plan inverts the 401(k). A 401(k) fixes the input — you contribute a known amount and retire on whatever it grows to. A defined benefit plan fixes the output: the plan promises a benefit at retirement — in 2026, up to $290,000 per year beginning at age 62, counting compensation up to $360,000 (IRS Notice 2025-67) — and an actuary solves backward each year for the contribution required to stay on track. Fewer years to retirement means less time to compound, so the same promised benefit costs far more per year at 55 than at 35. That is the entire engine of the six-figure deduction. The cash balance variant repackages the pension in familiar clothing: each participant sees a hypothetical account that grows by an employer pay credit plus an interest crediting rate, commonly a fixed 4 to 5% or a Treasury-based index. The account is bookkeeping; the assets sit in one pooled trust. Fully funded over a career, the lifetime maximum equates to a lump sum of roughly $3.5 to $3.7 million in 2026 — an actuarial equivalence that moves with mandated interest and mortality assumptions, not a published IRS dollar figure.

Why it matters: Age-weighting is why this structure exists for physicians. At identical W-2 compensation, a 55-year-old owner's required contribution can be several times a 35-year-old employee's, so the design directs most deductible dollars to senior owners while staff costs stay modest — real, and tested for nondiscrimination on a benefits basis, but modest. And because the interest credit is a promise, the practice, not the participant, absorbs investment shortfalls.

One Plan Year: $234,100 Sheltered, $98,322 Deferred

Dr. Osei, 52, owns her dermatology practice as an S corporation and pays herself $360,000 in W-2 wages, the 2026 §401(a)(17) cap (IRS Notice 2025-67). She files jointly and her taxable income stays above $768,700 even after the deduction, so every sheltered dollar sits in the 37% bracket (Rev. Proc. 2025-32). Her state taxes income at a flat 5% — an illustrative rate; your state's rate and treatment differ. Her actuary sets this year's cash balance contribution at $180,000.

Bottom line: One plan year moves $234,100 out of current taxable income and defers roughly $98,322 in combined tax — deferred, not erased, because every dollar is taxed on the way out.

The Contribution You Cannot Skip in a Bad Year

The six-figure deduction is priced in commitment. First, permanency: the IRS expects a qualified plan to be permanent, and advisors commonly translate that into keeping the plan roughly three to five years before amendment or termination starts to look abusive — practice has varied; confirm the standard with your TPA. Second, the contribution is not discretionary. Profit-sharing can be dialed to zero in a lean year; a defined benefit plan carries a minimum required contribution under the funding rules, due even when a payer dispute cuts collections 30%. Missing it creates a funding deficiency with excise tax exposure. Third, administration is a standing cost: actuary and TPA fees typically run $2,000 to $5,000 or more per year, plus setup. Fourth, the practice bears investment risk. The pooled portfolio is managed toward the interest crediting rate; returns below it become additional required funding, and returns far above it create overfunding problems of their own.

How to avoid it: Stress-test the commitment before adoption. Model the required contribution against your two weakest collection years, not your best. Get the all-in administration cost in writing — actuary, TPA, testing, filings. Confirm the interest crediting rate and who funds shortfalls. Ask what a freeze or amendment costs if partners change. If a bad year would strain funding, choose a smaller pay credit now rather than a freeze later.

Check Yourself: Who Can Actually Adopt One

Your Job Is to Evaluate the Pitch, Not Run the Plan

• A cash balance plan is a defined benefit pension in familiar packaging; the practice, not the participant, bears investment risk relative to the interest crediting rate.
• Age-weighted funding means an owner in his or her fifties can often deduct $150,000 or more per year on top of a fully funded 401(k).
• When stacked with a PBGC-exempt cash balance plan, employer profit-sharing stays deductible without triggering the §404(a)(7) combined limit only up to 6% of compensation, and elective deferrals never count against that cap.
• The contribution is a required annual obligation with roughly a three-to-five-year permanency expectation and $2,000 to $5,000 or more in yearly administration cost.
• Only an employer can sponsor one: practice owners and partners qualify, 1099 income can anchor a solo version, and W-2 employment alone cannot.

Do this next: If you own all or part of a practice and are 45 or older, ask your CPA for a cash balance feasibility illustration showing your age-based contribution, staff cost, the 6% profit-sharing interaction, and the all-in annual administration fee — before any adoption agreement is signed.