Cash Balance Plans for Consultants
An owner-only consultancy is the simplest census a pension can have: no staff to cover, no coverage testing, and income that is almost entirely profit. The design question is whether that income is stable enough to fund a plan every year.
Reviewed by Alexander Tecle, MBA, MS Taxation
President & Founder · Verify on SEC IAPD (opens in a new tab)
Reviewed
Your business shapes the plan
Owner goals
Start with compensation and the retirement benefit you want to build.
Your team
Employee ages and compensation affect the design.
Funding capacity
Review the ongoing commitment alongside your cash flow.
Consultants, advisors, and independent professionals occupy a privileged corner of plan design: the census is one person (maybe two, with a spouse on payroll), so there is no employee cost, no coverage complexity, and no testing drama. Every dollar of design effort goes to the owner's own number, which for a consultant in their 50s can be very large.
The practice also has consulting's signature risk: project-based revenue. A pension expects annual funding; a consultancy's year can swing with one contract. Good design accounts for that, and this guide shows how, anchored by a real client's restructuring.
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Calculators
From the case files
50% tax reduction | Consulting FirmS-Corp Consultant Case Study: 50% Lower Tax BurdenIllustrative client outcome — read the case study| Limit | 2026 | 2025 |
|---|---|---|
| Defined benefit annual benefit limit — IRC 415(b) | $290,000 | $280,000 |
| Compensation that can be counted — IRC 401(a)(17) | $360,000 | $350,000 |
| Total additions to a defined contribution plan — IRC 415(c)Employer + employee; excludes age-based catch-up. | $72,000 | $70,000 |
| 401(k) / 403(b) employee contribution | $24,500 | $23,500 |
| Catch-up contribution (age 50+) | $8,000 | $7,500 |
Official IRS figures for 2026. Source: IRS Notice 2025-67 (IR-2025-111).
A real consultant's restructuring
A 53-year-old consultant was earning about $800,000 as a Schedule C sole proprietor, paying full self-employment tax and capped at flat-limit plans. The redesign made an S-Corp election, set a $350,000 W-2 salary, and built the full stack on top of it: 401(k) deferral, profit sharing, and a $325,000 cash balance contribution funded through guaranteed insurance contracts, shifting market volatility to the carrier. The case study walks the numbers end to end.
| Feature | Before | After |
|---|---|---|
| Structure | Sole proprietor, Schedule C | S-Corp with a $350K W-2 (the 2025 IRC 401(a)(17) cap) |
| Retirement funding | Flat-limit plans only | 401(k) + profit sharing + $325K cash balance |
| Market exposure in plan | — | Shifted to insurance carriers via guaranteed contracts |
| Reported tax reduction | — | Federal and state burden cut by roughly half |
From the Johnson Consulting case study; figures reflect that client's year, limits, and assumptions — read the full case study for the detail. Your design is actuarially determined. Insurance-contract guarantees are obligations of the issuing carriers and depend on their claims-paying ability.
Why the solo census is such an advantage
With no employees, everything simplifies: no staff allocations, minimal testing, and design attention focused on one question — the largest sustainable owner contribution. A spouse doing bona fide work for bona fide W-2 pay is the census addition with the biggest payoff: their deferral, profit sharing, and cash balance credit stack a second set of limits inside the same plan, often adding six figures of household capacity.
Sizing the plan on project income
The funding commitment is the design constraint that matters. Size the pension on the income you can count on in a weak year rather than on your best year; the actuarial range then absorbs good and lean years, with amendment or freeze available if the change is lasting. A consultant whose floor is unpredictable should max the flexible 401(k)/profit-sharing layer first and add the pension after two or three stable years.
Find the income floor
Use the income expected in a weak year instead of the strongest project year.
Keep flexibility first
Maximize the flexible 401(k) and profit-sharing layer while income remains unpredictable.
Set the pension range
After stable years, the actuary sizes a cash balance range the business can sustain.
Respond to change
Use the range for normal variation and amend or freeze when a lasting change occurs.
Choose the entity first
Most consulting incomes above ~$300,000 end up in an S-Corp for the same reasons the case study did: the W-2/distribution split manages payroll tax, and the corporation cleanly sponsors and deducts the plan. The S-Corp guide covers the mechanics, including the reasonable-compensation and W-2-sizing decisions that consulting incomes make unusually flexible.
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Frequently asked questions
I have no employees — does a cash balance plan get simpler?
Much. Owner-only plans skip staff allocations and most testing complexity, and administration is lighter. The design conversation is purely about your own sustainable contribution level.
My income swings with projects — is the commitment dangerous?
It is a design input rather than a dealbreaker. Plans sized on the income you can count on in a weak year flex within an actuarial range, with amendment and freeze options behind that. Income that cannot be forecast at all argues for maxing the 401(k) layer first.
Can I add my spouse to the plan?
Yes, if they do bona fide work for bona fide W-2 pay. It is one of the best census moves available to a solo consultant, adding a full second set of contribution limits inside the same plan.
Do I need an S-Corp first?
Not strictly; sole proprietors and partnerships sponsor plans too, but most high-income consultants land there for payroll-tax and plan mechanics, sometimes via a late election as in the case study. Decide entity and plan together.
Sources
- IRC §1402 — net earnings from self-employment (opens in a new tab)
- IRC §1362 — S corporation election (opens in a new tab)
- IRS — S corporation compensation and medical insurance issues (opens in a new tab)
- IRC §415 — benefit and contribution limits (opens in a new tab)
- IRS — Retirement plans for self-employed people (opens in a new tab)
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See what your practice could fund
Model a contribution for an owner in your field from age and compensation alone. The result is an illustration with its assumptions shown, not a quote.
This guide is educational and is not individualized tax, legal, or investment advice. Contribution limits and tax rules change annually and depend on your specific situation; figures are illustrative. Consult a qualified professional before acting.