As a CPA, you can help S-corporation owners understand a point that is frequently overlooked: how much an owner is paid in W-2 wages — not distributions — largely determines how much can be contributed to a retirement plan on their behalf.

S-corporation payments to shareholder-employees are generally split between W-2 compensation and pass-through distributions. While distributions can be tax-efficient from an employment-tax perspective, shareholder-employees must still be paid reasonable compensation for services performed. Critically, distributions generally do not count as “compensation” for qualified plan contribution purposes. An owner who minimizes W-2 wages may therefore be unintentionally limiting retirement savings opportunities.

Why W-2 wages drive retirement contributions

For S-corp shareholder-employees, plan compensation is generally based on compensation reported on the shareholder-employee’s Form W-2 — as defined by the plan and limited by the applicable compensation cap under IRC §401(a)(17). This W-2 figure is used to determine:

  • Elective deferrals in a 401(k) plan
  • Employer contributions and profit-sharing allocations
  • Allocations under cross-tested or new comparability plan designs
  • Benefits and contribution levels in a defined benefit plan

If W-2 wages are too low, the owner may not be able to maximize retirement benefits — even if the business itself is highly profitable.

2026 contribution limits

The key thresholds governing retirement plan contributions for S-corp shareholder-employees in 2026:

  • $24,500 — 401(k) elective deferral limit (additional catch-up contributions may be available)
  • $72,000 — total annual additions limit for defined contribution plans (excluding catch-ups)
  • $360,000 — compensation cap under §401(a)(17)

Consider this example: an owner with $70,000 of W-2 wages can defer up to $24,500 as an elective deferral. However, total annual additions cannot exceed 100% of compensation, and employer contributions may be further constrained by the plan’s formula, nondiscrimination rules, and applicable deduction limits. In a typical owner-only or pro rata profit-sharing structure, the owner generally cannot reach the $72,000 annual-additions ceiling without significantly higher W-2 wages.

Planning note: A profitable S corporation does not automatically translate into maximum retirement contributions. The binding constraint for most owners is W-2 compensation, not business income. Without adequate W-2 wages, the $72,000 annual additions limit remains out of reach regardless of how well the business performs.

Balancing tax efficiency and retirement goals

The planning challenge here is not simply to minimize W-2 wages. Instead, it is to strike an appropriate balance between two legitimate objectives:

  • Employment tax efficiency: lower W-2 wages, higher pass-through distributions
  • Retirement plan optimization: higher W-2 wages that unlock larger contributions

When advising S-corporation owners, retirement planning should be considered as part of overall compensation strategy — not in isolation from it. A plan focused solely on minimizing W-2 wages can inadvertently undermine the client’s ability to maximize tax-advantaged retirement contributions, which often represent the single most powerful wealth-building tool available to a small-business owner.

An integrated approach — modeling different W-2 wage levels against projected retirement contributions, employment taxes, and net tax outcomes — allows CPAs to help clients make informed decisions that serve both near-term cash flow and long-term retirement security.