A stock bonus plan is a qualified defined contribution retirement plan that an employer funds on behalf of employees and that pays benefits in shares of the company’s own stock rather than cash. It works much like a profit-sharing plan, with one defining difference: participants have the right to receive their account balance as actual equity in the business. That structure creates the plan’s signature tax benefit at payout, a treatment called net unrealized appreciation that can turn a large slice of what would be ordinary income into long-term capital gains.
How a Stock Bonus Plan Works
The employer decides each year whether to contribute and how much. Contributions are discretionary, and unlike a profit-sharing plan they don’t have to depend on the company turning a profit.1eCFR. 26 CFR 1.401-1 – Qualified Pension, Profit-Sharing, and Stock Bonus Plans The company can contribute cash, which the plan trust uses to buy employer stock, or it can contribute shares directly. Either way, each participant’s account holds a real ownership interest in the business.
Contributions are allocated across participant accounts under a nondiscriminatory formula, usually tied to each employee’s compensation as a share of total payroll. The plan can’t steer a disproportionate amount to highly compensated employees.
When the employer’s stock isn’t publicly traded, every plan transaction involving those shares has to use a fair market value set by an independent appraiser, and that appraisal has to happen at least once a year.2Office of the Law Revision Counsel. 26 U.S. Code 401 – Qualified Pension, Profit-Sharing, and Stock Bonus Plans Contributions, allocations, and distributions all key off that price.
Contribution and Deduction Limits
Two separate caps apply in 2026. The annual additions limit per participant is the lesser of 100% of compensation or $72,000.3Internal Revenue Service. COLA Increases for Dollar Limitations on Benefits and Contributions The employer’s tax deduction is capped at 25% of the total compensation paid to all participating employees.4Office 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 Compensation counted toward either calculation is itself capped, at $360,000 per participant in 2026.5Internal Revenue Service. 2026 Amounts Relating to Retirement Plans and IRAs
Going over the deduction limit triggers a 10% excise tax on the nondeductible portion, and that tax recurs every year the excess sits in the plan.6Office of the Law Revision Counsel. 26 U.S. Code 4972 – Tax on Nondeductible Contributions to Qualified Employer Plans
When the Stock Becomes Yours: Vesting
Shares landing in your account doesn’t mean you own them yet. A stock bonus plan has to follow one of two vesting schedules set by federal law:7Office of the Law Revision Counsel. 26 USC 411 – Minimum Vesting Standards
- Three-year cliff vesting: no ownership of employer contributions until you finish three years of service, then 100% at once.
- Six-year graded vesting: 20% after two years of service, then another 20% each year, reaching 100% after six.
Leaving before you’re fully vested means forfeiting the unvested portion. Forfeitures get reallocated to remaining participants or used to reduce future employer contributions. If you’re weighing a job change, check your plan’s schedule; leaving a month too soon can cost real money.
Net Unrealized Appreciation: The Reason to Pay Attention
Growth inside the plan is tax-deferred, so no income tax comes due until you take a distribution. The bigger story shows up at payout.
When you take a lump-sum distribution of employer stock from the plan, only the plan’s original cost basis in those shares is taxed as ordinary income in the year of distribution. The difference between that cost basis and the current market value, called net unrealized appreciation, is not taxed at distribution. You only pay tax on that appreciation when you eventually sell the shares, and it’s taxed at long-term capital gains rates no matter how long you actually held the stock after the distribution.
An example makes the math concrete. Suppose the plan acquired shares at $10 each and they’re worth $50 when they come out. You owe ordinary income tax on the $10 cost basis. The $40 per share of appreciation waits until you sell, and then it’s taxed at the capital gains rate. Rolling the whole distribution into an IRA instead would eventually tax every dollar as ordinary income, at rates that can run close to double the capital gains rate.
The catch: to qualify, the distribution has to be a lump sum of your entire account balance, and it has to be triggered by separation from service, reaching age 59½, disability, or death. Any appreciation that happens after the shares sit in your brokerage account follows normal capital gains rules from that point on.
Getting the Stock Out
Distributions generally wait for a qualifying event: leaving the company, retirement, disability, or death. A plan may permit in-service distributions after a specified age, but the default is that the account sits until employment ends.
Because a stock bonus plan is defined by the fact that it distributes benefits in employer stock, you have the right to receive your distribution in actual shares.1eCFR. 26 CFR 1.401-1 – Qualified Pension, Profit-Sharing, and Stock Bonus Plans The plan can offer cash instead, but you have to agree to it.
Selling shares of a publicly traded employer is easy enough on the open market. Shares of a closely held company are another matter, and that’s where the put option comes in. When the plan is structured as an employee stock ownership plan (as many stock bonus plans are), a participant who receives shares that aren’t publicly traded has the right to require the company to buy them back at fair market value.8Office of the Law Revision Counsel. 26 USC 409 – Qualifications for Tax Credit Employee Stock Ownership Plans
The put option window runs at least 60 days after the distribution date. If you don’t use it in that window, the company must offer the same 60-day option again a year later. When you exercise it on a total distribution, the company can spread payment over up to five years, starting within 30 days, with adequate security and reasonable interest on the unpaid balance. For installment distributions, payment is due within 30 days of exercising the put.9Internal Revenue Service. IRS Chapter 8 – Employee Stock Ownership Plans
Early Withdrawals, RMDs, and Rollovers
Before Age 59½
Take a distribution before 59½ and expect a 10% additional tax on top of ordinary income tax.10Office of the Law Revision Counsel. 26 U.S. Code 72 – Annuities; Certain Proceeds of Endowment and Life Insurance Contracts Several exceptions can spare you from the penalty:
- Leaving the company during or after the year you turn 55.
- Disability, or distributions to a beneficiary after the participant’s death.
- Substantially equal periodic payments over your life expectancy, sustained for at least five years or until 59½, whichever comes 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
You generally must start taking withdrawals by April 1 of the year after you turn 73.11Internal Revenue Service. Retirement Plan and IRA Required Minimum Distributions FAQs One exception matters here: if you’re still working for the sponsoring employer and own less than 5% of the business, you can delay RMDs until you actually retire.
Rollovers
Distributions are generally eligible for rollover to an IRA or another qualified employer plan.12eCFR. 26 CFR 1.402(c)-2 – Eligible Rollover Distributions You can roll over cash proceeds, or you can roll over employer stock at its fair market value at distribution. Read that second option carefully: rolling employer stock into an IRA forfeits the NUA treatment. Once the shares are in the IRA, every dollar withdrawn later is taxed as ordinary income. For a participant with a large unrealized gain in employer stock, the choice comes down to taking the stock out, paying ordinary income tax on the cost basis now, and locking in capital gains treatment on the appreciation, or rolling the whole balance for continued deferral and giving up the capital gains rate on that appreciation.
Diversification Rights
Holding your retirement savings in a single company’s stock is concentrated risk, and federal law offers a safety valve for publicly traded employer stock. Participants who have completed at least three years of service can direct the plan to sell employer stock in their account and reinvest the proceeds in other options the plan offers.13Internal Revenue Service. Notice 2006-107 – Diversification Requirements for Qualified Defined Contribution Plans Holding Publicly Traded Employer Securities The plan has to make at least three alternatives available with meaningfully different risk and return profiles.
For closely held companies whose stock isn’t publicly traded, the statutory diversification requirement doesn’t apply the same way, though individual plans may build in voluntary diversification features.
Stock Bonus Plan vs. ESOP
The two get confused often, and it’s worth separating them. An ESOP is technically a stock bonus plan (or a combination stock bonus and money purchase plan) that’s designed to invest primarily in employer securities and meets additional statutory requirements.14Office of the Law Revision Counsel. 26 U.S. Code 4975 – Tax on Prohibited Transactions Every ESOP is a stock bonus plan; not every stock bonus plan is an ESOP.
The main differences come down to three things. An ESOP can borrow money to buy a large block of employer stock at once and then have the company repay the loan through plan contributions, with shares released to participant accounts as the debt gets paid down. A plain stock bonus plan can’t borrow to acquire shares; it can only receive stock through direct contributions or buy it with contributed cash.
An ESOP also opens the door to the Section 1042 tax-deferred rollover, which lets a selling shareholder of a privately held C corporation defer capital gains tax by reinvesting proceeds into qualified replacement property, provided certain conditions are met.15Office of the Law Revision Counsel. 26 U.S. Code 1042 – Sales of Stock to Employee Stock Ownership Plans or Cooperatives A non-ESOP stock bonus plan doesn’t qualify.
Finally, ESOPs carry specific participant protections, including the put option on non-publicly traded shares and pass-through voting rights on shares of a publicly registered employer.8Office of the Law Revision Counsel. 26 USC 409 – Qualifications for Tax Credit Employee Stock Ownership Plans A basic stock bonus plan that doesn’t meet the ESOP definition isn’t bound by those specific rules, though in practice most stock bonus plans holding significant employer stock do qualify as ESOPs. Both plan types offer the NUA treatment at distribution; the ESOP’s ability to borrow and to facilitate ownership transfers is what gives it a much larger role in corporate finance.