NUA at Distribution: When $300K Company Stock Beats a Rollover

What NUA actually is

Net Unrealized Appreciation under IRC sec. 402(e)(4) is one of the most under-deployed tax breaks in retirement planning. It applies to a narrow set of employees: those who hold employer stock inside a qualified retirement plan (401(k), profit-sharing plan, ESOP). When the right conditions are met, NUA converts what would otherwise be ordinary-income tax on the entire stock value at distribution into ordinary-income tax on the cost basis only — with all the appreciation taxed later as long-term capital gain at the much lower 20% plus 3.8% NIIT rate.

The classic candidate: a long-tenured employee at a Fortune 500 company (Boeing, Lockheed Martin, ExxonMobil, Coca-Cola, AT&T, Procter & Gamble) whose 401(k) match was historically paid in company stock and who held those shares for decades. Original cost basis: a fraction of current FMV. NUA appreciation: often 5x-20x basis. Federal tax savings under NUA versus IRA rollover: routinely $50,000 to $500,000 for retiring senior managers.

The four conditions for NUA treatment

IRC sec. 402(e)(4) imposes four strict conditions. Miss any one and the entire NUA benefit is lost:

1. Triggering event. The lump-sum distribution must occur on account of one of: (a) separation from service with the employer sponsoring the plan, (b) the employee reaching age 59½, (c) the employee’s death (beneficiary may elect), or (d) disability within IRC sec. 72(m)(7).
2. Lump-sum distribution. The entire balance of all qualified plans of the same type with the same employer must be distributed in a single tax year. A partial distribution disqualifies the entire transaction from NUA treatment.
3. In-kind transfer of employer securities. At least some portion of the distribution must be employer securities transferred in-kind to a taxable brokerage account. Cash distributions of employer stock value do not qualify.
4. Employer securities held inside the plan. The shares must have been held inside the qualified plan, not an outside IRA. Shares previously rolled out of the plan into an IRA cannot be brought back into NUA.

How NUA tax treatment actually works

At the lump-sum distribution, the participant receives employer securities transferred in-kind to a taxable brokerage account. The plan administrator reports the transaction on Form 1099-R with specific NUA codes.

• At distribution: ordinary income on the cost basis only — what the plan originally paid for the shares. The participant’s tax-deferred basis becomes the cost basis at distribution.
• On later sale: the NUA appreciation (FMV at distribution minus cost basis) is taxed as long-term capital gain regardless of holding period — even if sold the same day. The post-distribution appreciation (additional gain between distribution and sale) is taxed as short-term or long-term capital gain based on the post-distribution holding period.
• If shares are not sold (held until death): the NUA portion does NOT receive a step-up in basis under IRC sec. 1014. Only the post-distribution appreciation gets the step-up. This is a critical estate-planning consideration that often surprises beneficiaries.

The cost-basis question

The plan administrator tracks each employer-stock share lot’s cost basis — the actual price the plan paid when acquiring the shares. For shares acquired through 401(k) match, the basis is the FMV on the contribution date. For shares acquired via ESPP-style purchases inside the plan, the basis is the purchase price.

The participant’s ratio of cost basis to current FMV determines whether NUA is worth it. A high basis (50-60% of FMV) makes NUA unattractive because too much ordinary tax is paid at distribution. A low basis (10-20% of FMV) makes NUA highly attractive because most of the value moves at LTCG rates.

Worked example: $1.2M 401(k) with $300K employer stock at $50K basis

Charles, age 62, is retiring after 32 years at a publicly traded industrial conglomerate. His 401(k) balance:

• Diversified mutual funds: $900,000 (no employer-stock exposure)
• Employer stock: $300,000 current FMV, $50,000 cost basis ($250,000 of NUA appreciation)
• Total plan balance: $1,200,000

Charles is married filing jointly. Other 2026 income: $80,000 pension from prior employer, $30,000 of Social Security ($25,500 taxable at 85% inclusion), spouse’s W-2 income $40,000 (she still works). Combined household taxable income without the 401(k) distribution: roughly $135,000. Marginal federal bracket: 22% (MFJ bracket runs $96,951-$206,700).

Scenario A: Full rollover to traditional IRA

Charles rolls the entire $1.2 million to a traditional IRA. No tax at rollover (direct trustee-to-trustee transfer under IRC sec. 402(c)). Future distributions are taxed as ordinary income at marginal rates. Assuming Charles eventually liquidates the entire IRA over 10-15 years of retirement at marginal rates averaging 24% (mix of 22% and some 24% bracket distributions):

• Total federal tax on $1.2M of eventual IRA distributions @ 24%: roughly $288,000
• Of which, tax on the $300K employer stock portion @ 24%: roughly $72,000

Scenario B: NUA election on employer stock plus rollover of remainder

Charles takes a lump-sum distribution of the entire $1.2M plan balance in one tax year:

• $900,000 of mutual funds direct-rolled to traditional IRA (no current tax)
• $300,000 of employer stock transferred in-kind to a taxable brokerage account
• Ordinary income recognized at distribution: $50,000 (the cost basis only)

Charles’s 2026 taxable income: $135,000 baseline plus $50,000 NUA basis = $185,000. He is still in the 22% MFJ bracket (top of 22% bracket is $206,700 MFJ). Federal tax on the $50,000 basis at 22% = $11,000.

Later, Charles sells the employer stock. Assume he sells over 3-5 years to manage LTCG bracket. His other retirement-year taxable income is roughly $100,000-$120,000 (below MFJ $96,701-$600,050 15% LTCG threshold for partial years, partially at 15%, partially above). For modeling, assume blended LTCG rate of 15% on the NUA appreciation:

• NUA appreciation: $250,000 @ 15% LTCG = $37,500
• NIIT: 3.8% on the NUA appreciation if MAGI exceeds $250K MFJ = up to $9,500
• Maximum federal NUA tax: $37,500 + $9,500 = $47,000 (in practice lower if AGI stays below NIIT threshold)

Plus the $900,000 of remaining IRA funds, which will eventually be distributed at the same average 24% as in Scenario A — adding $216,000 in eventual federal tax over the IRA distribution years.

Side-by-side comparison

The $14,000-$23,500 range understates the true savings because Charles can spread the NUA stock sales across multiple years to keep LTCG rates at 0% or 15% (rather than 20%), and to manage AGI below NIIT thresholds. In a high-bracket retiree scenario where Scenario A’s ordinary tax would have been at 32-35%, NUA savings often exceed $40,000-$60,000 federal on a similar $250K of NUA appreciation.

Where the math flips — when NUA is the wrong choice

1. High cost basis

If the employer-stock cost basis is high relative to FMV, the ordinary income at distribution can exceed the eventual LTCG savings. The rule of thumb: if basis is more than 50-60% of FMV, run the math carefully — NUA may net negative after factoring in the time value of the ordinary tax paid upfront.

Example: $300K of employer stock with $200K basis. Ordinary income at distribution: $200K @ 35% = $70K federal upfront. NUA appreciation: $100K @ 23.8% (LTCG + NIIT) = $23,800. Total NUA-route tax: $93,800. Full-rollover route at average 24% on the full $300K when distributed: $72K. Rollover saves $22K. NUA loses by $22K.

2. Estate planning with stepped-up basis intent

Under IRC sec. 1014, inherited assets receive a basis step-up to FMV at death. Traditional IRA assets do not get the step-up (they are income in respect of a decedent under IRC sec. 691). NUA shares in a taxable account DO get partial step-up — but only on the post-distribution appreciation portion, not the NUA portion itself.

If the original NUA was $250K and the shares appreciated another $100K after distribution before the owner dies, heirs receive a stepped-up basis equal to (cost basis at distribution + NUA + post-distribution appreciation) — the full FMV at death. Selling immediately produces no capital gain. However, the $250K NUA was already locked in as future LTCG at distribution; the step-up only eliminates tax on the additional $100K. The heir is in the same position as if the original owner had sold and re-bought shares the day after distribution — for the NUA portion.

Practical implication: if the primary plan is to leave the stock to heirs and never sell, the traditional IRA rollover preserves tax deferral fully until death (when the SECURE Act 10-year rule kicks in for non-spouse beneficiaries). NUA produces some current ordinary tax upfront with limited estate-planning benefit on the NUA portion.

3. High current-year other income

The ordinary income on cost basis at NUA distribution stacks on top of all other current-year income. If the retiree has high other income (large severance, late-career bonus, pension lump-sum, big LTCG from a separate event), the cost-basis tax could push into a 35% or 37% federal bracket — making the NUA basis tax expensive enough to erode the eventual LTCG savings.

Mitigation: time the NUA election for a year with low other income — most commonly the first year of retirement, before pension and Social Security start.

4. Short-term liquidity needs

NUA requires the lump-sum distribution to happen in a single tax year. The ordinary tax on the basis is owed in that year. If the retiree needs immediate liquidity but does not want to sell the employer stock yet, the cost-basis tax must come from other resources — savings, taxable brokerage, or selling the just-distributed stock at LTCG rates. The cash-flow timing can be tight.

5. Concentrated stock risk

NUA preserves the tax benefit only if the stock continues to be held until sale. The concentration risk of holding $300K of single-company stock in retirement is real — particularly for retirees whose pension and Social Security benefits are also tied to the same employer’s long-term viability.

Many NUA recipients sell the shares relatively quickly after distribution (within 1-3 years) to capture the LTCG tax savings while reducing concentration. This is the most common approach. The NUA benefit is fully captured at the first sale, regardless of post-distribution holding period.

The lump-sum distribution mechanics

IRC sec. 402(e)(4)(D) defines a lump-sum distribution as the entire balance of all the plans of the same type maintained by the employer, distributed within a single tax year, on account of one of the triggering events. Key implementation points:

• All-or-nothing distribution year. The full plan balance must be distributed in the same tax year. Partial distributions in prior years disqualify the lump-sum status retroactively.
• Same-type plans. All qualified plans of the same type must be included. A 401(k) and a separate profit-sharing plan are different types — but multiple 401(k) accounts at the same employer must all be distributed together.
• Direct in-kind transfer. The employer securities must be transferred in-kind to a taxable brokerage account. Selling inside the plan and distributing cash does not qualify for NUA.
• Non-employer portion can roll to IRA. The non-stock portion (mutual funds, fixed-income, other employer-balanced funds) can be direct-rolled to a traditional IRA in the same lump-sum distribution. This is the standard pattern — only the employer stock leaves the qualified plan ecosystem.

State tax considerations

NUA is a federal tax election under IRC sec. 402(e)(4). State conformity varies:

• Most states with income tax conform to NUA treatment. The basis is ordinary income at distribution; the NUA appreciation is capital gain at sale.
• States that tax capital gains at ordinary rates (most states with income tax) still benefit from NUA because the deferral preserves time value, even if the rate differential disappears.
• States with no income tax (FL, TX, NV, WA, WY, TN, NH, SD, AK) have no state-tax impact regardless of NUA election.
• California taxes capital gains at full ordinary rates (up to 13.3%) but still conforms to the NUA federal mechanic — the rate differential at the federal level is preserved.

Coordination with Roth conversions

Many retirees combine NUA with Roth conversions in the same year. The strategy:

1. Lump-sum distribute the 401(k) — employer stock to taxable brokerage (NUA election), remainder to traditional IRA.
2. In subsequent years, before SS and pension income ramp up, do partial Roth conversions of the traditional IRA balance at low marginal rates.
3. Sell NUA stock strategically across years to manage LTCG bracket (target 0% LTCG below MFJ $96,700 taxable income, 15% LTCG below $600,050).

The combined strategy maximizes tax efficiency across the retirement-distribution years. The NUA election uses the company-stock portion of the qualified plan for capital-gain treatment; the Roth conversion ladder uses low-bracket years to systematically move pre-tax dollars to Roth status.

The Form 1099-R reporting

At the lump-sum distribution, the plan administrator issues Form 1099-R with specific NUA codes:

• Box 1 (Gross distribution): the FMV of all distributed amounts, including the employer stock at current FMV.
• Box 2a (Taxable amount): the ordinary income recognized at distribution — typically the cost basis of employer stock (NUA appreciation excluded) plus any cash portion.
• Box 6 (NUA in employer securities): the NUA amount — the appreciation in the employer stock that will later be LTCG at sale.
• Distribution code 7 (Normal distribution) or code 1 (Early distribution, no known exception) in Box 7.

The participant’s tax return then reflects the ordinary income on Form 1040 line 5b and tracks the NUA basis for future Schedule D reporting at sale. Get this wrong and the IRS may either double-tax the NUA appreciation or miss the basis allocation entirely — most accountants without NUA experience get the reporting wrong on the first try.

The five-step decision checklist

1. Confirm cost basis. Request the plan administrator’s detailed share-lot accounting. NUA is worth it only when basis is materially below FMV (rule of thumb: less than 40-50%).
2. Verify triggering event eligibility. Separation from service, age 59½, death, or disability. The distribution must occur after the triggering event in the same tax year.
3. Estimate marginal tax on basis at distribution. Project the distribution-year AGI including the basis. Confirm the basis tax falls in a 12%-24% bracket rather than 32%-37%.
4. Compare lifetime tax outcomes. Run both scenarios — full rollover (ordinary income on future IRA distributions) vs NUA (ordinary on basis now, LTCG on appreciation later). Include NIIT, IRMAA, and state-tax effects.
5. Plan post-distribution stock management. Decide on sale timing (immediately, over 3-5 years, hold longer for additional appreciation) to optimize LTCG brackets and reduce concentration risk.

Key takeaways

• Net Unrealized Appreciation under IRC sec. 402(e)(4) lets retirees take a lump-sum distribution of employer stock from a qualified plan, paying ordinary income tax at distribution only on the cost basis — with the appreciation taxed later as long-term capital gain at 20% plus 3.8% NIIT instead of ordinary rates up to 37%.
• Four conditions must be satisfied: a triggering event (separation, age 59½, death, or disability), a lump-sum distribution of the entire qualified plan balance in one tax year, at least some employer securities transferred in-kind to a taxable brokerage account, and the shares being held inside the plan (not an outside IRA).
• On $300K of employer stock with $50K basis, NUA versus full rollover saves approximately $33K-$40K in federal tax depending on marginal rates and post-distribution sale timing. Higher-basis scenarios produce smaller savings; lower-basis scenarios can produce six-figure federal savings.
• The NUA portion does NOT receive a step-up in basis under IRC sec. 1014 at death. Only the post-distribution appreciation gets the step-up. This is critical for estate planning — heirs of NUA shares inherit the NUA portion as immediate LTCG-eligible gain, not as basis-stepped-up tax-free.
• Combine NUA with Roth conversion ladders in low-income retirement years for compounded tax efficiency. The NUA election handles the company-stock portion; Roth conversions handle the rest.
• NUA is the wrong choice when the cost basis is too high relative to FMV (above 50-60%), when high current-year other income pushes the basis tax into the 32%-37% bracket, or when the primary intent is to leave the stock to heirs at stepped-up basis.
• Form 1099-R reporting at the lump-sum distribution must use the correct NUA codes (Box 6 captures the NUA amount). Get the reporting wrong and the IRS may double-tax the appreciation or miss the basis allocation — work with a CPA familiar with NUA mechanics.