S-Corp Consultant Case Study: 50% Lower Tax Burden
A 53-year-old consultant with $800,000 of Schedule C income elected S-corp status, set a $350,000 W-2, and stacked a 401(k), profit sharing, an insured cash balance plan, and a mega-backdoor Roth, reducing reported federal and state tax by $169,515.
- Published
- Updated
- Entity
- S corporation
Tax reduction per year
$169,515
Reported; assumes 37% federal + 8% state
- Pre-tax contributions
- $376,700
- Deferral, profit sharing and cash balance
- Payroll tax saved
- $12,708
- From the $350,000 S-corp salary
Annual contributions, $402,500
- 401(k) salary deferral$31,000
- Profit sharing$20,700
- Cash balance (insured)$325,000
- After-tax to Roth 401(k)$25,800
Next step
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At a glance
Figures are the ones reported for this engagement. Where the engagement did not state something, the row says so rather than estimating it.
| Owner age | 53 (target retirement at 63) |
|---|---|
| Income | $800,000 of consulting income |
| Entity | Single-member LLC filing a Schedule C, then a late S-corp election; owner W-2 set at $350,000 |
| Staff | Not disclosed |
| Plan design | 401(k) with Roth and after-tax accounts, profit sharing, and a cash balance plan funded 40% whole life insurance / 60% fixed-rate annuity |
| Employee cost | Not disclosed |
| Owner contribution | $402,500 ($31,000 salary deferral, $20,700 profit sharing, $325,000 cash balance, $25,800 after-tax to Roth) |
| Estimated deduction | $376,700 pre-tax ($31,000 + $20,700 + $325,000); the $25,800 after-tax contribution is not deductible |
| Reported tax savings | $169,515 a year in federal and state income tax, plus $12,708 in payroll tax |
| Tax-rate assumption | 37% federal and 8% state, as stated in the engagement |
Challenge
Mr. Johnson, 53, started a consulting business that generated $800,000 of income in its first year, which he reported as a single-member LLC filing a Schedule C.
At that income he was paying roughly $44,000 in self-employment tax, about $21,142 of it Social Security tax and $23,200 Medicare tax.
He wanted to retire at 63, expected the same contracted income for the next ten years, wanted to reduce his federal tax bill, and was concerned that stock market volatility could erode his retirement savings.
Solution
After reviewing his situation, My Pension Tree suggested he ask his tax accountant about a late S-corp election so the LLC would be taxed as an S corporation.
He then set up payroll and paid himself a $350,000 W-2 salary, the IRC 401(a)(17) compensation cap for that year (2025; $360,000 for 2026), which sizes a corporate-funded 401(k) profit-sharing and pension contribution.
From that salary his accountant accrued a $31,000 401(k) salary deferral, which reduces his federal taxable wages, and the plan added Roth 401(k) and after-tax 401(k) accounts.
To address his concern about market volatility, and to support the largest deductible corporate contribution, the cash balance plan was funded with insurance contracts: 40% of the pension contribution to a 10-pay whole life policy and 60% to a fixed-rate annuity with a 3.5% guaranteed rate and principal. Those guarantees rest on the issuing carrier's claims-paying ability.
His 401(k) and Roth 401(k) balances are professionally managed by a growth-oriented money manager affiliated with the My Pension Tree investment network.
The four contribution layers
- 401(k) salary deferral$31,000
- Profit sharing$20,700
- Cash balance (insured)$325,000
- After-tax to Roth 401(k)$25,800
Next step
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Outcome
The business elected S-corp treatment and paid him a $350,000 salary, which reduced his payroll tax by $12,708.
He maximized his salary deferral at $31,000, and the S corporation made a deductible profit-sharing contribution of $20,700 and a cash balance pension contribution of $325,000.
He also contributed $25,800 of after-tax money to the plan and moved it to his Roth 401(k), the mega backdoor Roth 401(k) strategy.
The reported federal and state tax reduction from the combined strategy was $169,515 a year, assuming a 37% federal rate and an 8% state income tax rate.
“Before My Pension Tree, nobody ever told me I could contribute this much to a retirement plan that would help me save so much on taxes.”
Case studies are illustrative, based on real client engagements with names and identifying details changed. Results depend on age, income, entity type, employee demographics, plan design, and federal and state tax rates, and are not a guarantee or projection of your outcome. This content is educational and is not individualized tax, legal, or investment advice — consult a qualified professional before acting.
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