★ Investment Strategy

NUA on Employer Stock

"Thirty years at IBM. Your 401(k) holds $500K of IBM shares. The IRS gives you exactly one chance to pay ordinary income tax on $50K of basis instead of $500K of total — and most people roll it into an IRA and lose the chance forever."

Typical Savings: $40K–$300K (one-time) Difficulty: ★★★★☆ Audit Risk: Low (statutory election) Best For: Retiring employees with appreciated company stock in 401(k)

The 60-second pitch

If your 401(k) holds appreciated stock of the employer you're separating from, §402(e)(4) lets you pull the stock out in-kind to a taxable brokerage account, pay ordinary income tax only on the cost basis, and the rest of the appreciation ("Net Unrealized Appreciation") is taxed as long-term capital gain when you eventually sell. Maximum federal LTCG rate: 20% (+ 3.8% NIIT if applicable). Versus ordinary income tax of 37% at the top.

The math is brutal in favor of NUA when (1) the stock has very low basis relative to current value, and (2) you'll be in a high tax bracket if you simply roll everything to an IRA and take taxable withdrawals later. Long-tenured employees of companies whose stock has 5x'd or more (a 1990s Apple or Microsoft hire, a 1985 Walmart hire, a 1980 Cisco hire) often have ratios where 80%+ of the 401(k) value is appreciation. The savings is a one-time election worth $50K-$500K.

The election is fragile. It requires a "lump sum distribution" — the entire balance of all the employer's qualified plans must be distributed to you in a single tax year, triggered by separation from service, disability, age 59½, or death. The employer stock goes to a taxable brokerage; the rest can roll to an IRA. Mess up the lump-sum timing and the NUA election is gone.

One more nuance: while you wait to sell the stock after NUA distribution, dividends are taxed as qualified dividends (15-20%), and the holding period for the NUA portion is automatically long-term — but additional post-distribution appreciation has to be held a year for LTCG treatment on that delta. The original NUA gets LTCG immediately upon sale.

Real-world example

Frank · 64 · Retiring from IBM after 32 years

The setup. Frank's 401(k) statement: $680,000 total. Of that, $500,000 is IBM stock (12,500 shares × $40/share). His employer-tracked cost basis on those shares: $50,000. The remaining $180K is in target-date funds.

Option A: Roll everything to an IRA. Standard move. $680K rolls tax-free to a Rollover IRA. Frank pulls $50K/year in retirement. At his 22% MFJ bracket, that's $11K of tax per year for 20+ years on the IBM money. Total tax paid on the IBM stock as it's withdrawn over a lifetime: roughly $500K × 22% = $110K. Plus growth gets taxed at ordinary rates too.

Option B: NUA election. Frank takes the IBM shares in-kind to a taxable brokerage account at Schwab. The target-date fund balance ($180K) rolls to an IRA. Both happen as part of the same lump-sum distribution in 2025.

Year 1 ordinary income tax on $50K basis at 22% MFJ + 6% state = $14,000.
Stock now sits in taxable brokerage with cost basis = $50K, FMV = $500K. The $450K of NUA is "locked in" as LTCG character.

Frank sells half the IBM stock in 2026 for $250K. Allocated basis = $25K. Gain = $225K. Of that, $225K is NUA (already-locked LTCG character) → taxed at 15% federal (he's in 22% MFJ bracket so LTCG rate is 15%) = $33,750. Plus 3.8% NIIT if applicable. Versus Option A: $250K out of IRA at 22% ordinary = $55K. NUA saved ~$21K on this slice alone.

Lifetime comparison. Over the full liquidation of the $500K of IBM stock at NUA's 15% rate vs. Option A's 22% (+ ordinary tax on any growth): Frank saves approximately $60,000-$80,000 in federal + state tax, depending on how he stages sales. If his bracket bumps to 24% on RMD pressure later, the gap widens further.

Bonus: estate planning. At Frank's death, the original NUA does NOT get a basis step-up (it retains "income in respect of decedent" character on the NUA portion only). But any post-distribution appreciation DOES step up. So holding NUA stock until death gives a partial step-up — better than IRA money, which gets no step-up at all.

One-time NUA tax savings

$60K–$80K

LTCG rate captured on $450K of appreciation

15% vs 22-24%

The step-by-step checklist

Verify you have employer stock in a qualified plan. 401(k), ESOP, profit-sharing, or stock-bonus plan. NUA does NOT apply to IRAs, 403(b)s, or 457(b)s. If the stock is already in an IRA, you've lost the election.
Confirm your cost basis on the stock. Your plan administrator tracks this. Request a basis report from HR or the recordkeeper (Fidelity, Empower, Vanguard).
Compute the basis/value ratio. NUA is most powerful when basis is < 30% of current value. Above 50%, the math is weaker and may not justify the complexity.
Identify a "triggering event." Separation from service (most common), reaching age 59½, total disability, or death. The lump-sum distribution must follow the triggering event.
Plan the lump-sum distribution. Single tax year. ENTIRE balance of all the employer's plans of the same type must be distributed by Dec 31. (You can roll some to an IRA and take some as NUA stock — but every account at the employer must be drained that year.)
Execute the in-kind transfer. Stock shares move in-kind to a taxable brokerage in your name. Cash, mutual funds, target-date funds, etc. roll to a Rollover IRA. The split happens in one transaction.
Pay ordinary income tax on the basis in the year of distribution. Reported on Form 1099-R, box 6 = NUA amount, box 2a = basis (taxable portion). Plan administrator typically does NOT withhold tax on the basis — set aside cash to pay it via estimated tax.
If under 59½ at distribution, watch the 10% early withdrawal penalty on the basis (the NUA itself is not subject to penalty). Separation at age 55+ exception applies.
Hold the NUA stock to manage capital gains timing. You can sell same-day for LTCG character on the NUA, or hold and benefit from continued appreciation (deferring gain and possibly getting future step-up at death).
Track post-distribution holding period separately from NUA. NUA portion = automatic LTCG. Post-distribution appreciation = LTCG only after 1-year hold.
Diversify carefully. Holding $500K of one company stock is concentration risk. NUA's tax benefit can be offset by stock-price collapse. Consider selling 30-50% within the first year to lock in gains at LTCG rates and diversify.
Coordinate with surviving spouse / heirs. NUA's tax treatment passes to heirs. Educate your beneficiaries. The original NUA does NOT step up at death (it's IRD), but post-distribution appreciation does.

IRS code & authority

IRC §402(e)(4) The NUA statute. Allows employer securities distributed in a lump-sum from a qualified plan to exclude the NUA from ordinary income, with LTCG treatment on sale.
IRC §402(e)(4)(D) Definition of "lump-sum distribution" — within a single tax year, on account of one of the triggering events (separation, age 59½, death, disability).
IRC §402(e)(4)(B) Net Unrealized Appreciation defined as the excess of FMV at distribution over the cost basis the plan tracked.
Notice 98-24 IRS guidance on NUA — covers the §72 vs §402(e)(4) interaction and basis tracking.
Rev. Rul. 75-125 Confirms that the holding period for NUA character is deemed long-term immediately at distribution, regardless of how long you held the stock inside the plan.
§691 Income in Respect of Decedent — the original NUA does NOT get §1014 step-up. Heirs inherit the NUA tax burden but get step-up on post-distribution appreciation.
§72(t)(2)(A)(v) Separation at age 55+ exception to the 10% early withdrawal penalty — useful if you NUA-out at 56 or 57.
Reg §1.402(a)-1(b)(1)(i) Detailed application of basis to the distribution.

Audit risk flags

Botched lump-sum requirement. Took a partial distribution last year, then tried NUA this year? The "lump sum" rule says ALL plan accounts at the same employer must be drained in the SAME tax year. Defense: Confirm with HR that no partial distributions have happened in the year of NUA election; clean reset year if needed.
Stock basis tracking error. Some recordkeepers have wonky basis numbers, especially for stock acquired via dividends or company match. Defense: Request the basis history from the recordkeeper in writing. Reconcile with year-end statements going back 5+ years.
Concentration risk in the underlying stock. $500K of one ticker is genuinely risky. Enron retirees still cry about this. Defense: Plan a staged sell-down post-distribution while still capturing the LTCG character on NUA. You can sell 20% in year 1, 20% in year 2, etc.
Failing the "qualifying triggering event" test. You can't elect NUA without one of the four events. Just being unhappy at your job ≠ separation from service. Defense: Time the election around an actual retirement or HR-recorded separation date.
Rolling employer stock to an IRA by mistake. Once in an IRA, NUA is gone forever — all sales are ordinary income on withdrawal. This is the single most common mistake. Defense: Tell your plan administrator EXPLICITLY: "Distribute the employer securities in-kind to my taxable brokerage; roll the rest to a Rollover IRA." Get it in writing before they execute.
State tax doesn't conform. A handful of states tax NUA differently from federal (some treat as ordinary income at full FMV). California is mostly conforming. Defense: State-specific check.
NIIT on the NUA gain when sold. The LTCG character of NUA is still in the NII bucket. Defense: Plan sales in years your MAGI is below the $200K/$250K threshold to avoid the 3.8% surcharge.

When NOT to do this

Basis is high relative to value. If basis is 70%+ of FMV, paying ordinary income on the basis upfront erases most of the NUA benefit. Just roll to IRA.
You'll always be in a low bracket. If your retirement bracket will be 12%, the NUA LTCG rate (0-15%) only saves a little. Complexity not worth it.
You're under 55 and not separating. Without a triggering event, you can't elect NUA. Don't quit just for the tax move.
You can't tolerate the concentration risk. $500K in one stock means a 50% drawdown costs $250K — more than NUA ever saves you. Diversification matters first.
The company is in distress. NUA on a falling-knife stock is dangerous. You'd be paying ordinary tax on basis to lock in capital-gain treatment on a position that may be worth $0 next year.
You need the cash now. NUA only pays off on the sale tax rate over time. If you'll liquidate everything within a year regardless, the rollover-then-IRA-then-sell path has roughly comparable economics minus complexity.
You have basis that includes after-tax contributions. Adds complexity. Doable, but consult a tax professional familiar with NUA and §72 layering.

Don't roll over the tax break of a lifetime

PilePilot pulls your 401(k) statement, computes your basis-to-value ratio, models lifetime NUA savings vs. straight rollover, and walks you through the lump-sum distribution mechanics before your retirement date. Built for real small businesses who runs NUA elections for retiring executives.

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Disclaimer. Educational, not tax advice. NUA is a one-time, irreversible election with specific timing rules — fumbling the lump-sum requirement loses the benefit permanently. Confirm with a tax professional and your plan administrator before initiating the distribution. Concentration risk in the underlying employer stock is a real, separate concern.