Resource · Retirement Consequence
Net Unrealized Appreciation (NUA): Tax Consequences of Distributing Employer Stock
When a qualified retirement plan holds appreciated employer stock, the decision between a lump-sum distribution of that stock and a rollover to an IRA changes which tax rules apply to the appreciation — and the difference can materially affect the after-tax position.
What NUA is
Net Unrealized Appreciation is the difference between the cost basis of employer stock inside a qualified plan (typically a 401(k) or ESOP) and the fair market value of that stock at the time of a qualifying lump-sum distribution. Under Internal Revenue Code §402(e)(4), a participant who takes a qualifying lump-sum distribution of employer securities may elect to have only the cost basis taxed as ordinary income at distribution, with the appreciation (the NUA) taxed at long-term capital gain rates when the stock is later sold — regardless of holding period after distribution.
The two paths, compared
Path A — Rollover to IRA. The entire value of the employer stock, including the appreciation, is preserved inside the IRA. Future distributions are taxed as ordinary income at the participant's marginal rate at the time of withdrawal. Required Minimum Distributions apply.
Path B — NUA election on lump-sum distribution.The cost basis is taxed as ordinary income in the year of distribution. The appreciation is taxed at long-term capital gain rates only when the stock is sold. Additional appreciation after distribution follows normal holding-period rules.
Conditions that must hold for the NUA election
- The distribution must be a lump-sum distribution — the entire balance of the participant's qualified plan account distributed within one tax year.
- The distribution must occur following a triggering event: separation from service, reaching age 59½, disability, or death.
- The employer securities must be distributed in-kind, not liquidated inside the plan.
- No portion of the employer stock may be rolled to an IRA if NUA treatment is to apply to that stock.
Drivers of the consequence
The direction of the tradeoff depends on several interacting facts. The size of the NUA relative to cost basis, the participant's current and projected ordinary marginal rates, the projected long-term capital gain rate, the timing of the eventual sale, the Net Investment Income Tax exposure on the gain, state tax treatment of both ordinary and capital gain income, and any 10% early-distribution penalty on the cost-basis portion all shape the outcome.
Common failure modes
- Rolling any portion of the employer stock to an IRA before making the NUA election forfeits NUA treatment on the stock that was rolled.
- Failing to complete the distribution as a single lump-sum within one tax year disqualifies the election.
- Overlooking the 10% early-distribution penalty on the cost-basis portion when the participant is under 59½ and no other exception applies.
- Overlooking that the NUA itself is not subject to the 3.8% Net Investment Income Tax at distribution, but any post-distribution appreciation on the stock generally is when the stock is sold.
How PRISM models this
PRISM treats the NUA decision as a consequence chain — the distribution facts drive the current-year ordinary income addition, the projected capital gain on eventual sale, the interaction with NIIT and state tax, and the multi-year after-tax position under each path. The modeled outcome is observational: it shows the tax consequences that follow from the supported facts, not a recommendation to elect or forgo NUA.