Advanced
Net Unrealized Appreciation (NUA): Employer Stock Inside a 401(k)
NUA strategies involve taking a lump-sum distribution of employer securities from a qualified plan and paying ordinary income tax on the stock’s cost basis while potentially treating appreciation differently under specific rules—errors are expensive. Searches for NUA 401k require a CPA: this page only defines terms and links rollover context.
Definitions & prerequisites
Employer securities in-plan
NUA conversations assume you hold appreciated company stock inside a qualified plan—not every employer offers publicly traded shares in the menu.
Lump-sum distribution requirement (conceptual)
Tax rules around NUA are tightly scoped—partial withdrawals or wrong sequencing can destroy treatment. This section is not a checklist for execution.
Rule highlights & IRA interaction
Why IRAs complicate NUA
Rolling employer stock to an IRA may eliminate NUA treatment—compare with rollover rules before any transfer.
Contrast with diversified rollovers
Most participants roll pre-tax balances to traditional IRAs without stock-specific planning—NUA is a fork in the road for concentrated positions.
How this connects to our calculators
No NUA engine here
Our 401(k) calculator and early withdrawal tools do not split basis vs. appreciation for employer stock—use CPA-modeled spreadsheets.
Limits still matter pre-distribution
While employed, deferral limits still govern contributions—NUA is about exit mechanics, not annual savings caps.
Common misconceptions
“I’ll move stock to an IRA and decide later”
Order of operations matters—many NUA elections are ruined by improper rollovers.
“NUA eliminates taxes”
You typically still pay ordinary income on basis; the benefit story is about how appreciation may be taxed later if rules are met—confirm with a professional.
Brokerage accounts, cost basis & holding periods after NUA
Moving shares to a taxable brokerage
If NUA treatment applies, appreciated stock may eventually be sold in a taxable account—long-term capital gains holding periods may begin on the date shares move, not your original hire date. Confirm holding-period rules with your CPA.
Diversification risk
NUA planning often leaves concentrated employer stock—balance tax optimization against single- stock risk and your overall allocation.
Estate considerations
Inherited stock outside retirement accounts gets different basis rules than inherited IRAs—estate attorneys should coordinate NUA decisions with broader plans.
FAQ
Does NUA apply to stock options or RSUs?
Different tax regimes—this article only orients 401(k)-held employer securities scenarios.
What about in-service distributions?
See in-service rules—eligibility may be limited while still employed.
Can I do NUA with only part of my shares?
Partial distribution strategies interact with lump-sum rules—do not execute piecemeal transfers without professional sequencing advice.
Checklist: before moving employer stock
- Confirm share basis records with the plan’s stock unit.
- Model ordinary income on basis vs. long-term capital gains scenarios with a CPA.
- Avoid partial rollovers until you understand NUA sequencing rules.