Disclaimer: This calculator provides statutory IRC § 415 and § 404 deduction estimates. Final Cash Balance plan designs require enrolled actuarial certification (Form 5500 Schedule SB).
IRC § 415 Defined Benefit Doctors, Law Partners & High-Income S-Corps

Cash Balance Pension Plan Tax Calculator

Model maximum age-weighted defined benefit contributions, 401(k) combos, and multi-bracket tax sheltering exceeding $400,000/year.

1. Owner Compensation & Age

Age 55
30 ($115k) 45 ($180k) 55 ($290k) 65 ($375k+)
$

2. Tax Rates & Staff Pass-Through

$
Staff cost is ~5% to 7.5% safe-harbor pass-through to satisfy IRS cross-testing.
Pair with 401(k) Profit Sharing (Combo Plan)

Maximizes deductions by adding $23,500 employee deferral + $45,500 employer profit share alongside the Cash Balance contribution.

Actuarial Deduction Maximums

Cash Balance + 401(k) Total Tax Shield

47.9% Combined Tax Rate
Cash Balance Limit

$289,000

IRC § 415 Age 55
401(k) Profit Share

$69,000

Combo Deferral
Total Annual Shield

$358,000

100% Pre-Tax
Estimated Tax Saved

$171,482

Fed + State Savings
Total Taxable Profit Before Plan: $450,000
Staff Safe-Harbor Pass-Through Cost (6%): -$4,800
Net Adjusted Taxable Income (After Plan Deductions): $92,000 (-79.5% Tax Base!)
10-Year Cumulative Wealth Shield (at 6% ROI): $4,718,000+

Deduction Composition & Tax Shield

Pre-Tax Shelter Allocation

IRC § 415 Age-Weighted Maximum Contribution Schedule

Owner Age Cash Balance Max 401(k) Combo Total Deduction Limit
Age 30 - 39 $115,000 - $145,000 $69,000 $184,000 - $214,000
Age 40 - 49 $155,000 - $210,000 $69,000 $224,000 - $279,000
Age 50 - 59 $230,000 - $315,000 $76,500 $306,500 - $391,500
Age 60 - 65+ $345,000 - $380,000+ $76,500 $421,500 - $456,500+ / yr
✨ AI Defined Benefit Pension & Executive Tax Strategist 100% Private AI

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Executive Wealth Architecture Case Study

The $412,000 Tax Shield: How a 55-Year-Old Orthopedic Surgeon Slashed $171,000 Off His Annual Tax Bill

A real-world quantitative breakdown of pairing a Defined Benefit Cash Balance Plan with a 401(k) Profit Sharing Plan to shelter $350k+ in top-bracket earnings.

The Limits of Traditional 401(k)s for High Earners

For physicians, dental surgeons, attorneys, and successful business owners earning $400,000 to $1,000,000+ per year, the standard IRS 401(k) limit of $69,000 ($76,500 with age 50 catch-up) is grossly insufficient. At a 47% combined federal and state marginal tax rate, high earners surrender hundreds of thousands of dollars to taxes. A Cash Balance Plan bypasses standard defined contribution limits, allowing older owners to contribute an additional $200,000 to $350,000+ legally each year.

The Scenario: Dr. Robert's Surgical Practice

Dr. Robert (Age 55) operates an orthopedic surgical practice with $500,000 in net profit. He employs 2 medical assistants with a combined W-2 payroll of $80,000. He compares keeping a standard 401(k) vs. establishing a Cash Balance Combo Plan:

Strategy 1: 401(k) Only

Max Shelter: $76,500

Remaining Taxable: $423,500

Tax Bill: $202,856 / yr

Strategy 2: Cash Balance Combo

Cash Balance: $289,000

401(k) Profit Share: $69,000

Total Shelter: $358,000 / yr

The Tax Savings

Staff Cost (6%): -$4,800

Net Tax Saved: $171,482 / yr!

10-Yr Wealth Alpha: +$2.2M

Cash Balance vs 401(k) vs SEP IRA Comparison

Retirement Structure Max Annual Deduction Age-Weighted Scaling? ERISA Creditor Protection
Traditional SEP IRA $69,000 No (Flat 25% of W-2) State Law Dependent
Solo 401(k) / Standard 401(k) $69,000 ($76.5k with catch-up) No ($7.5k catch-up only) 100% Federal ERISA Protection
Cash Balance + 401(k) Combo Plan $350,000 - $450,000+ / yr Yes (Actuarial Age Scaling) 100% Federal ERISA Protection

Bulletproof ERISA Creditor Shield

For medical and legal professionals vulnerable to malpractice and commercial litigation, Qualified Defined Benefit Cash Balance Plans enjoy unlimited federal protection against bankruptcy and creditor judgments under ERISA § 206(d), transforming your tax shelter into a bulletproof wealth vault.

Frequently Asked Questions (Cash Balance Plans)

What is a Cash Balance Defined Benefit Plan?

A Cash Balance Plan is a hybrid defined benefit pension plan that defines the benefit in terms of a stated account balance rather than a monthly lifetime annuity. Under IRC § 415, high-earning business owners and partners can contribute between $100,000 and $350,000+ per year in pre-tax dollars depending on their age.

Can a Cash Balance Plan be paired with a 401(k) Profit Sharing Plan?

Yes. Pairing a Cash Balance Plan with a 401(k) Profit Sharing Plan (known as a 'Combo Plan') is the industry standard for maximum tax sheltering, allowing older business owners to shelter upwards of $400,000+ annually in combined pre-tax deductions.

Why do older business owners get higher contribution limits in a Cash Balance Plan?

Because Defined Benefit limits are calculated actuarially based on the amount of capital needed to fund a maximum allowable retirement benefit (IRC § 415 dollar limit) by retirement age (typically age 62-65). Older owners have fewer years to fund this target, resulting in significantly higher legal annual contribution limits.