What Is a Stock Bonus Plan and How Does It Work?

A stock bonus plan is a qualified, defined contribution retirement plan in which the employer contributes to employee accounts that hold the company’s own stock, with benefits paid out in shares rather than cash. It works much like a profit-sharing plan, except the currency of the account is equity in the business. The structure gives employees an ownership stake and offers a distinctive tax break at distribution called net unrealized appreciation, which can turn what would otherwise be ordinary income into lower-taxed capital gains.

How the Plan Is Funded

Employer contributions are discretionary. The company decides each year how much to put in and whether to contribute at all, which leaves room to adjust for cash flow. Contributions can come in as cash that the plan trust uses to buy employer stock, or as shares contributed directly.¹ Unlike a profit-sharing plan, contributions don’t have to depend on whether the company turned a profit that year.

Whatever goes in must be allocated to participant accounts using a nondiscriminatory formula, usually based on each employee’s compensation relative to total participant payroll. The plan can’t funnel a disproportionate share to highly compensated employees.

When the stock isn’t publicly traded, every transaction involving plan-held shares has to use a fair market value set by an independent appraiser, and the appraisal has to happen at least once a year.² A broken valuation process can cost the plan its qualified status.

Contribution and Deduction Limits

Two separate caps apply. For 2026, the annual additions limit per participant is the lesser of 100% of compensation or $72,000.³ The employer’s tax deduction is capped at 25% of the total compensation paid to all participating employees.⁴ Compensation counted toward these calculations can’t exceed $360,000 per participant in 2026.⁵

Going over the deduction limit triggers a 10% excise tax on the nondeductible portion.⁶ The tax recurs each year the excess sits in the plan.

When the Shares Become Yours

Having employer contributions land in your account doesn’t mean you own them outright. A stock bonus plan has to use one of two vesting schedules set by federal law.⁷

Cliff vesting: no ownership of employer contributions until you complete three years of service, at which point you become 100% vested all at once.
Graded vesting: ownership phases in over six years, reaching 20% after two years, 40% after three, 60% after four, 80% after five, and 100% after six.

Leave before you’re fully vested and you forfeit the unvested portion. Those forfeited amounts get reallocated to remaining participants’ accounts or used to offset future employer contributions. The clock and the schedule are both worth checking in your plan document, because leaving a month too early can cost a meaningful share of employer-contributed stock.

The Tax Advantage at Distribution: Net Unrealized Appreciation

Contributions and investment growth inside the plan are tax-deferred, so no income tax hits until you take money out. The headline benefit comes at distribution, through the net unrealized appreciation (NUA) rule.

When you take a lump-sum distribution of employer stock from the plan, only the plan’s original cost basis in the shares is taxed as ordinary income in the year of distribution. The gap between that cost basis and the current market value is the net unrealized appreciation, and it isn’t taxed at distribution. Tax comes due only when you sell, and the appreciation is taxed at long-term capital gains rates no matter how long you held the shares after receiving them.

The savings can be substantial. Say the plan acquired shares at $10 each and they’re worth $50 when you take them out. You owe ordinary income tax on the $10 cost basis, while the $40 per share of appreciation gets deferred and taxed at the lower capital gains rate when you sell. Roll the entire distribution into an IRA instead and every dollar coming out eventually gets taxed as ordinary income, potentially at rates nearly double the capital gains rate.

To use NUA, the distribution must be a lump sum of your entire account balance, triggered by one of these events: separation from service, reaching age 59½, disability, or death. Any additional appreciation after the shares reach your brokerage account follows normal capital gains rules.

Getting Your Money Out

Distributions usually don’t happen until a qualifying event: leaving the company, retirement, disability, or death. A plan may allow in-service distributions after a specified age, but the default is that funds stay put until employment ends.

Because the plan is defined as one that pays benefits in employer stock, participants have the right to receive the distribution in actual shares rather than cash.¹ A plan may offer a cash alternative, but the participant has to agree to it; stock is the default.

Shares in a publicly traded company are easy enough to deal with because you can sell them on the open market. For employees of closely held companies whose stock doesn’t trade anywhere, liquidity is a real problem. That’s where the put option comes in. When a stock bonus plan is structured as an employee stock ownership plan (as many are), participants who receive non-publicly traded shares have the right to require the company to buy them back at fair market value.⁸ The put option window runs for at least 60 days after distribution, and if you don’t exercise it the company must offer the same 60-day option again a year later.

Early Withdrawals, RMDs, and Rollovers

A distribution before age 59½ brings a 10% additional tax on top of ordinary income tax.⁹ Several exceptions can spare you from that penalty:

Separation from service during or after the year you turn 55, for distributions from that employer’s plan.
Distributions to a disabled participant, or to a beneficiary after the participant’s death.
Substantially equal periodic payments spread over your life expectancy, held to the schedule for at least five years or until age 59½, whichever is later.
Distributions to an ex-spouse under a qualified domestic relations order.
Unreimbursed medical expenses above the deduction threshold, and distributions to terminally ill participants.

Required minimum distributions generally have to begin by April 1 of the year after you turn 73.¹⁰ If you’re still working for the sponsoring employer and own less than 5% of the business, you can delay RMDs from that plan until you actually retire.

Distributions are generally eligible for rollover to an IRA or another qualified employer plan.¹¹ You can roll over cash proceeds, or if you received employer stock, roll over the fair market value at the time of distribution. One tradeoff deserves attention: rolling employer stock into an IRA kills the NUA strategy, because every dollar later withdrawn from the IRA is taxed as ordinary income. For participants with large unrealized gains in their employer stock, that’s where the decision gets hard: take the stock out, pay ordinary income tax on the cost basis now, and capture capital gains treatment on the appreciation, or roll everything into an IRA for continued deferral at the cost of losing the favorable rate.

Diversifying Out of Company Stock

Concentrating retirement savings in a single company’s stock is risky, and federal law provides a safety valve. For plans holding publicly traded employer securities, participants with at least three years of service can direct the plan to sell employer stock in their account and reinvest the proceeds in other investment options the plan offers.¹² The plan must offer at least three alternatives with meaningfully different risk and return profiles. For closely held companies whose stock isn’t publicly traded, these statutory diversification rights don’t apply in the same way, though a plan can include voluntary diversification provisions.

How a Stock Bonus Plan Differs From an ESOP

An employee stock ownership plan is technically defined as a stock bonus plan (or a combination stock bonus and money purchase plan) designed to invest primarily in qualifying employer securities and meeting additional statutory requirements.¹³ Every ESOP is a stock bonus plan, but not every stock bonus plan is an ESOP. Three differences carry most of the weight.

The biggest is leverage. An ESOP can borrow money from a bank, from the sponsoring company, or from a selling shareholder to buy a large block of employer stock at once. The company then contributes to the plan to repay the loan, and shares are released to participant accounts as the debt is paid down. A stock bonus plan that isn’t structured as an ESOP cannot borrow to acquire shares; it can only receive stock through direct employer contributions or buy shares with contributed cash.

The second is the Section 1042 tax-deferred rollover. When a shareholder of a privately held C corporation sells stock to an ESOP and the ESOP ends up owning at least 30% of the company, that seller can defer capital gains tax by reinvesting the proceeds into qualified replacement property within 12 months.¹⁴ The seller must have held the stock for at least three years, and the replacement property must be securities of a domestic operating corporation. A non-ESOP stock bonus plan does not qualify for this treatment, which makes it far less useful as a succession-planning tool.

Third, ESOPs carry additional participant protections. Federal law requires ESOPs to offer a put option on non-publicly traded shares and, where the employer has publicly registered securities, to pass through voting rights to participants on those shares.⁸ A basic stock bonus plan that doesn’t meet the ESOP definition isn’t bound by those specific rules, though many stock bonus plans holding substantial employer stock do qualify as ESOPs in practice. Both plan types offer NUA treatment at distribution, but the ESOP’s ability to leverage and facilitate ownership transfers gives it the larger role in corporate finance.

1
eCFR. 26 CFR 1.401-1 – Qualified Pension, Profit-Sharing, and Stock Bonus Plans
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Office of the Law Revision Counsel. 26 U.S. Code 401 – Qualified Pension, Profit-Sharing, and Stock Bonus Plans
3
Internal Revenue Service. COLA Increases for Dollar Limitations on Benefits and Contributions
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Office of the Law Revision Counsel. 26 U.S. Code 404 – Deduction for Contributions of an Employer to an Employees Trust or Annuity Plan and Compensation Under a Deferred-Payment Plan
5
Internal Revenue Service. 2026 Amounts Relating to Retirement Plans and IRAs
6
Office of the Law Revision Counsel. 26 U.S. Code 4972 – Tax on Nondeductible Contributions to Qualified Employer Plans
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Office of the Law Revision Counsel. 26 USC 411 – Minimum Vesting Standards
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Office of the Law Revision Counsel. 26 USC 409 – Qualifications for Tax Credit Employee Stock Ownership Plans
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Office of the Law Revision Counsel. 26 U.S. Code 72 – Annuities; Certain Proceeds of Endowment and Life Insurance Contracts
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Internal Revenue Service. Retirement Plan and IRA Required Minimum Distributions FAQs
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eCFR. 26 CFR 1.402(c)-2 – Eligible Rollover Distributions
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Internal Revenue Service. Notice 2006-107 – Diversification Requirements for Qualified Defined Contribution Plans Holding Publicly Traded Employer Securities
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Office of the Law Revision Counsel. 26 U.S. Code 4975 – Tax on Prohibited Transactions
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Office of the Law Revision Counsel. 26 U.S. Code 1042 – Sales of Stock to Employee Stock Ownership Plans or Cooperatives