The Net Unrealized Appreciation election under IRC §402(e)(4) is one of the most underused and highest-leverage planning moves in the advisor's toolkit. For a client retiring from or separating from a company with appreciated employer stock inside a qualified retirement plan (typically a 401(k) or ESOP), the election allows the stock to be transferred to a taxable brokerage account with cost basis taxed as ordinary income at distribution and the appreciation taxed at long-term capital gains rates whenever the stock is eventually sold. For a client with $400,000 of basis and $2,400,000 of current value, the tax-cost differential between NUA and a standard IRA rollover can run six to seven figures. The election is also irreversible, deadline-bound, and exquisitely sensitive to the lump-sum-distribution mechanics under §402(e)(4)(D). AI-assisted modeling and Reg BI documentation make the difference between a defensible recommendation and the next FINRA AWC. This lesson installs the end-to-end NUA workflow.

What NUA Actually Does Under IRC §402(e)(4)

The NUA election is a narrow provision of the Code that applies when (a) the employer's plan distributes the employee's account in a "lump-sum distribution" under §402(e)(4)(D), and (b) the distribution includes employer securities. The lump-sum-distribution requirements under §402(e)(4)(D): (1) the distribution is of the entire balance of the employee's account in all qualified plans of the employer of the same kind (all the company's qualified DC plans treated together for this test, all DB plans separately), (2) the distribution occurs in a single taxable year, (3) the distribution occurs on account of one of four triggering events — separation from service (for non-self-employed), death, attainment of age 59½, or disability (for self-employed).

If the election applies, the employee pays ordinary income tax at distribution on the cost basis of the employer stock (the average basis of all shares contributed to the plan on the employee's behalf, as tracked by the plan administrator on Form 1099-R Box 6). The appreciation above basis — the NUA — is not taxed at distribution. The stock transfers to a taxable brokerage account; the NUA is taxed at long-term capital gains rates whenever the stock is sold (regardless of holding period in the brokerage account); any post-distribution appreciation after transfer is taxed at long-term or short-term cap gains depending on the holding period from the date of distribution forward.

The leverage math: a client whose 401(k) holds $2.4M of employer stock with $400K of cost basis faces, at distribution: ordinary income tax on $400K (at the client's marginal rate, often 32-37% for separating senior executives) plus eventual LTCG on $2M of NUA (at 15% or 20% + 3.8% NIIT). Compare to a standard IRA rollover: no current tax, but all future distributions including the $2M of appreciation are ordinary income (at whatever marginal rate applies at distribution). For a client expecting to remain in a high bracket through and past RMD age, NUA can save high six to low seven figures over the life of the distribution.

The Four Triggering Events and Why They Matter

NUA eligibility depends on a "lump-sum distribution" — and a lump-sum distribution is only available on account of one of four triggering events. Missing the triggering event windows is the most common NUA planning failure.

Separation from service. For W-2 employees, separation from service is the triggering event. The lump-sum distribution must occur in the year of separation or in any single subsequent year — but the key constraint is that the entire account must be distributed in a single taxable year. A client who takes a partial distribution before completing the full lump sum loses NUA eligibility on the partial distribution (cannot retroactively elect NUA) and may compromise eligibility on the balance depending on timing.

Death. For a deceased participant, the beneficiary may elect NUA on a lump-sum distribution from the deceased's account.

Attainment of age 59½. An employee who continues working past 59½ may take a lump-sum distribution at any subsequent point and elect NUA. The triggering event is the attainment, not a specific distribution year.

Disability (for self-employed). A narrow case applicable mostly to sole proprietors and partners.

The most common practical scenario: the executive separating from service at retirement. The election deadline is the end of the year after separation in many practical interpretations, but the discipline is to complete the distribution in the calendar year that the lump-sum distribution rule cleanest aligns to the client's tax situation — often the year of separation if separating mid-year, the year after if separating late in the year. The L3 Ch6.2 concentrated-stock decision memo lesson develops the timing analysis at scale; this lesson handles the single-client NUA workflow.

The Numbers — Worked Example for a Separating Executive

Consider Robert Chen, 62, separating from a 25-year career at a Fortune 500 company effective December 31. His 401(k) holds $3,200,000, of which $2,400,000 is employer stock with a cost basis of $400,000 (per Form 1099-R Box 6) and $800,000 is diversified mutual funds. His combined federal+state marginal rate is 37%+5% = 42% on ordinary income; LTCG at 20%+3.8% NIIT+5% state = 28.8%.

Path A: Standard IRA rollover. Full $3,200,000 rolls to IRA. No current tax. Future distributions taxed as ordinary income. At RMD age 73, the projected tax cost on the $2.4M-of-stock-equivalent portion (assuming the position is sold in the IRA and diversified) — depending on future bracket and inflation — runs to roughly $1.0M of cumulative ordinary tax over the distribution horizon.

Path B: Full NUA election. $2,400,000 of employer stock distributes to taxable brokerage. Ordinary income tax this year on the $400,000 basis at 42% = $168,000. The $800,000 of mutual funds rolls to IRA (no current tax). When the $2.4M of stock is eventually sold (often staggered over years, or held by heirs for step-up at death), LTCG on $2,000,000 of NUA at 28.8% = $576,000. Total cumulative tax: $168K + $576K = $744,000.

Path C: Partial NUA election. Distribute only the highest-NUA-percentage lots (the oldest shares with the lowest basis) — say, $1,000,000 of stock with $150,000 basis. Ordinary tax on $150K basis at 42% = $63,000. LTCG on $850K of NUA at 28.8% = $244,800. Total on partial: $307,800. The remaining $1.4M of stock + $800K of funds rolls to IRA. Partial elections preserve some flexibility and reduce current-year ordinary-tax shock.

Path D: NUA + step-up at death. For a 62-year-old executive with a healthy estate and intent to hold the NUA stock until death, the NUA portion does not receive a step-up in basis at death under current law (NUA is income in respect of a decedent under IRC §691). However, the appreciation accruing AFTER distribution does receive a step-up. Long-hold strategies tilt the analysis depending on assumed life expectancy and family situation.

The total-tax comparison across paths drives the recommendation. AI-assisted modeling produces all four scenarios in seconds; the advisor judges fit against the client's situation, time horizon, charitable intent, and family structure.

The Irrevocability and the Reg BI Implication

The NUA election is irrevocable for the year of distribution. Once the lump-sum distribution occurs with the employer-stock distribution to a taxable account, the election is set. The advisor's Reg BI Care Obligation §240.15l-1(a)(2)(ii) recommendation must therefore document — at the moment of recommendation — the alternatives considered, the projected tax-cost paths, the client's stated situation factors, and the client's understanding of the irrevocability.

The four Reg BI alternatives to document explicitly: (1) Full NUA election with stock to taxable, balance to IRA. (2) Partial NUA election with selected lots. (3) Standard full rollover to IRA, no NUA. (4) Combination strategies (e.g., NUA + immediate diversification with concentrated-stock strategy from L3 Ch6.2). Each path documented with projected tax-cost magnitude, sensitivity to future bracket assumption, sensitivity to client lifespan assumption, sensitivity to charitable-intent assumption.

The Locked NUA Workflow Prompt

Role. You are a senior CFP-certificant advisor running the NUA election workflow for a separating executive client. You never invent facts and cite IRC sections only when I have provided them.

Context. Client [Name], age [Age], separation date [Date], plan administrator [Company plan name], 401(k) total balance [$X], employer stock value [$Y] with cost basis [$Z] per Form 1099-R Box 6, non-stock balance [$W], current-year combined federal+state marginal rate [%], LTCG combined rate (federal + NIIT + state) [%], expected post-RMD bracket [%], client life expectancy assumption [years], charitable intent [yes/no/level], step-up-at-death intent [yes/no/timeline].

Task. Produce: (1) Four-path tax-cost comparison (Standard rollover, Full NUA, Partial NUA, NUA + step-up) with cumulative projected tax in nominal dollars. (2) Sensitivity analysis on future bracket, life expectancy, charitable intent — flag which assumption changes the recommendation. (3) Recommendation with the leading path and the dollar-magnitude case. (4) Reg BI rationale memo enumerating the four alternatives with client-specific rationale and irrevocability acknowledgment language. (5) Plan-administrator action checklist for completing the lump-sum distribution under §402(e)(4)(D) — timing, single-year distribution requirement, stock-to-taxable-account mechanics, non-stock-to-IRA rollover mechanics, Form 1099-R Box 6 verification.

Format. Comparison as Markdown table with columns: Path, Current-Year Tax, Cumulative Projected Tax, Net to Client/Heirs, Key Sensitivity. Recommendation as one paragraph. Reg BI memo as four-paragraph structure (recommendation, alternatives considered, client-specific rationale, irrevocability acknowledgment).

Constraints. (1) Do not invent the cost basis, the balance, or any rate — use only the figures I have provided. (2) Cite IRC §402(e)(4) for NUA mechanics and §402(e)(4)(D) for lump-sum-distribution definition. (3) Note that NUA is income in respect of a decedent under IRC §691 — no step-up on the NUA portion at death. (4) Do not invent the 1099-R Box 6 basis figure — must come from the plan administrator. (5) Do not provide legal or tax advice. (6) Marketing language forbidden. (7) For any data not provided, write [need: from plan administrator / client / Holistiplan].

Plan Administrator Coordination — The Operational Bottleneck

The NUA workflow's operational bottleneck is the plan administrator. The advisor needs from the administrator: confirmation of the plan's lump-sum-distribution mechanics, the current cost basis on the employer stock (per share + total, with lot-level detail where available), the procedure for splitting the distribution (stock to taxable account at a named broker, non-stock to IRA at a named custodian), and the date by which the full distribution must be completed to qualify as a single-taxable-year lump sum.

Common plan-administrator failures: (a) refusing to provide lot-level basis detail (forces use of average basis), (b) requiring the full distribution to be cash and then re-purchased (defeats NUA entirely — the stock must move in-kind), (c) treating the distribution as a series of partial distributions across the calendar year (defeats the single-year requirement), (d) sending the 1099-R with wrong Box 6 basis (requires correction request, can delay the election).

The advisor's operational discipline: contact the plan administrator at least 90 days before the planned distribution date, confirm the lump-sum mechanics in writing, verify the basis figure, coordinate the receiving brokerage and IRA custodian to accept the in-kind transfer, and run a dress rehearsal on the form package via L2 Ch7.1 NIGO pre-check. The L3 Ch1.3 verification pattern applies at each step; the L4 Ch3 WSPs codify the supervisory checkpoint.

The Cross-Reference to L3 Ch6 Concentrated Stock and L3 Ch5 Estate

An NUA election creates a concentrated stock position in a taxable brokerage account — typically a single ticker representing a large fraction of the client's investable assets. The L3 Ch6.2 concentrated-stock decision memo lesson develops the post-NUA management options: immediate diversification (with current LTCG tax recognition), staggered sale via a 10b5-1 plan (if client is still subject to insider-trading restrictions), exchange fund participation, charitable trust funding (CRT, CLAT), direct-indexing tax-loss harvesting offset. Each option carries Reg BI documentation requirements.

If the client's estate plan involves step-up-at-death intent, the L3 Ch5 estate planning lessons interact: NUA portion is IRD under §691 (no step-up); post-distribution appreciation gets step-up; the relative balance depends on holding period and life expectancy. SLAT / CRT / CLAT funding pre-distribution can reshape the analysis. The L4 Ch7 substantiation file logs the integrated planning rationale.

Monday Morning Deployment

Implementation: identify the next two or three separating-executive clients on the advisor's book. For each, gather the plan-administrator basis data, the client's bracket and life-expectancy assumptions, the charitable intent, and the post-NUA management preference. Run the locked NUA prompt to produce the four-path comparison. Walk through the recommendation with the client in a dedicated meeting (not a standard quarterly). Document the Reg BI memo with the irrevocability acknowledgment. Coordinate the plan-administrator package per the operational checklist. Route the L2 Ch3.3 five-output post-meeting workflow with the NUA-specific Reg BI memo as the trade-authorization cover.

Cross-References and the L2 Capstone Integration

The NUA workflow integrates into the L2 capstone as one of the 25 prompts because of its dollar-magnitude, its irrevocability, and its cross-lesson reach. It draws on L2 Ch1.1 (anatomy-locked prompt), L2 Ch1.2 (recognition reflex — particularly invented-cost-basis and deprecated-IRC-section failures), L2 Ch2.1 (pre-meeting dossier surfaces separating-executive prospects), L2 Ch3.1 (prep pack flags NUA candidates from Holistiplan + employer-stock concentration), L2 Ch3.2 (decision-log entry captures irrevocability acknowledgment), L2 Ch3.3 (five-output routing fires the trade authorization + plan revision + Reg BI memo + custodian package), L2 Ch7.1 (NIGO pre-check on the custodian package), L3 Ch5 (estate vehicle interaction — SLAT, CRT/CLAT pre-NUA), L3 Ch6.2 (post-NUA concentrated stock management), L4 Ch3 (WSP coverage of high-magnitude irrevocable recommendation), L4 Ch6 (risk register — irreversibility as top class), L4 Ch7 (substantiation file for any AI-derived NUA capability marketing claim), L4 Ch8 (M&A diligence proof point on advisor's NUA discipline).

The workflow is also one of the most easily quantified for L4 Ch5 ROI dashboard: 10 NUA-eligible clients per year × $200K-$500K average lifetime tax savings = $2M-$5M aggregate client benefit per year, demonstrably attributable to the firm's planning discipline. The L4 Ch8 buyer diligence pack uses this number directly as a planning-capability proof point that supports top-quartile valuation per Mercer Capital / ECHELON Q3-Q4 2025 RIA M&A data.

Key Takeaways

• NUA election under IRC §402(e)(4) applies when (a) the employer's plan distributes the employee's account in a lump-sum distribution under §402(e)(4)(D), and (b) the distribution includes employer securities.
• Four triggering events: separation from service, death, attainment of age 59½, disability (for self-employed). The lump-sum-distribution rule requires the entire account distributed in a single taxable year.
• NUA tax mechanics: ordinary income tax on the basis at distribution (Form 1099-R Box 6); long-term capital gains on the appreciation when sold (regardless of holding period); post-distribution appreciation taxed per holding period from distribution forward.
• Four-path tax-cost comparison: Standard rollover, Full NUA, Partial NUA (high-NUA lots only), NUA + step-up-at-death — each modeled with cumulative projected tax, sensitivity to bracket, lifespan, charitable intent.
• Irrevocability: once the lump-sum distribution occurs with stock to taxable, the election is set. Reg BI Care Obligation §240.15l-1(a)(2)(ii) requires documented alternatives + client-specific rationale + irrevocability acknowledgment.
• Plan administrator coordination is the operational bottleneck — basis verification, in-kind transfer mechanics, single-year-distribution timing. Contact 90+ days before planned date; L2 Ch7.1 NIGO pre-check covers the package.
• Cross-reference: L3 Ch6.2 concentrated stock post-NUA management (diversification, 10b5-1, exchange fund, CRT/CLAT); L3 Ch5 estate planning (NUA IRD under §691 — no step-up on NUA portion; post-distribution appreciation gets step-up).