Limits
Cash Balance Plan Contribution Limits for 2026
August 12, 2026 — 7 min read
A 401(k) has a number you can look up. A cash balance plan does not — its contribution is whatever an enrolled actuary calculates is needed to fund the benefit the plan promises. That single difference is why owners routinely move from a $72,000 ceiling to a deduction three or four times larger.
The 2026 numbers that actually matter
IRS Notice 2025-67 set the 2026 retirement plan limits. Four of them shape every cash balance design:
- IRC 415(b) maximum annual benefit: $290,000 (up from $280,000). This caps the lifetime annuity the plan can promise — not the yearly contribution.
- IRC 401(a)(17) compensation limit: $360,000. Pay above this is invisible to the plan's formula.
- IRC 415(c) total additions to a defined contribution plan: $72,000. This is the 401(k)-plus-profit-sharing ceiling most owners are stuck under.
- 401(k) elective deferral: $24,500, plus an $8,000 catch-up at age 50 and over.
Why there is no published cash balance limit
A defined benefit plan works backward. You fix the benefit — say a $290,000 annual pension starting at 62 — and the actuary solves for the funding required to get there by that date. An owner who is 58 has four years of funding runway to build the same benefit an owner of 42 has twenty years to build. Fewer years means a far larger annual deductible contribution.
That is the whole mechanic. Age and income are the inputs; the deduction is the output.
What that looks like in practice
Illustrative annual cash balance capacity for a profitable owner-only business, before adding a 401(k) and profit sharing:
- Age 40: roughly $130,000
- Age 45: roughly $180,000
- Age 50: roughly $235,000
- Age 55: roughly $290,000
- Age 60: roughly $340,000
Stacking the 401(k) on top
A cash balance plan is normally paired with a 401(k) and profit sharing. When both exist, the profit sharing piece is typically limited to 6% of eligible compensation, but the deferral and catch-up remain fully available. For an owner in their late fifties, total deductible contributions approaching or exceeding $400,000 in a single year is a routine design, not an outlier.
The constraint people miss
Compensation is the real gate. The plan cannot count pay above $360,000, and the benefit must be supportable by your actual earnings history. An S-corp owner taking a modest salary and large distributions often has to revisit reasonable compensation before a large plan makes sense. That conversation belongs in the design phase, not after adoption.