NUA Questions Answered: 22 FAQs on Net Unrealized Appreciation

Does Roth 401(k) employer stock qualify for NUA?

No. NUA treatment under IRC § 402(e)(4) applies only to the pre-tax portion of employer securities in a qualified plan. Roth 401(k) accounts are already after-tax; qualified distributions (5-year rule + age 59½ or disability) come out entirely tax-free. You do not need NUA for Roth 401(k) stock because there is no ordinary income tax to avoid. If you have a mix of Roth and pre-tax employer stock, only the pre-tax portion qualifies for NUA treatment.

Does employer matching stock qualify for NUA?

Yes. The NUA rules do not distinguish between employee-purchased and employer-matched shares — both qualify as long as they are actual employer stock held inside the plan. Employer match shares typically have very low or zero cost basis (the plan received them as contributions at nominal value), which creates an exceptionally high NUA ratio. A position funded entirely by employer match may be 50:1 or higher appreciation — the most favorable scenario for NUA.

Does NUA apply to 403(b) plans?

Generally no. Most 403(b) plans hold mutual funds or annuity contracts, not actual employer stock, so NUA is unavailable. A narrow exception exists for certain church-sponsored 403(b) plans that hold actual employer securities, but this is rare. If you have a 403(b) and believe it holds actual shares of your employer's publicly traded stock, confirm with your plan administrator — but for the overwhelming majority of 403(b) participants, NUA is not an option.

Does NUA work for company stock mutual funds, or only actual shares?

Only actual employer stock. A mutual fund — even one that holds a large position in your employer's shares — does not qualify. The stock must be distributed in-kind as actual shares of the employer (or its parent company, in some cases) to your taxable brokerage account. Cash liquidation and transfer never qualifies for NUA, regardless of what was liquidated.

Does my plan have to allow in-kind distribution of employer stock?

Yes, and this is often the first thing to verify. The plan document must explicitly permit in-kind distribution of employer securities. Large public company 401(k) plans that hold employer stock typically allow this. Closely held company plans — especially ESOPs with privately held shares — often restrict in-kind transfers due to valuation and liquidity constraints. Before modeling NUA, call your plan administrator and ask: "Can I take an in-kind distribution of employer stock to a brokerage account?" If the answer is no, NUA is unavailable.

Does NUA apply to stock options (ISOs or NSOs)?

No. NUA is a provision specific to employer securities held inside a qualified retirement plan (IRC § 402(e)(4)). ISOs and NSOs are granted and taxed under IRC §§ 422 and 83 respectively — entirely outside the plan context. If you have both stock options and employer stock inside your 401(k), only the in-plan stock qualifies for NUA.

What is the lump-sum distribution requirement?

To qualify for NUA treatment, the distribution must be a lump-sum distribution — all of the balance in all qualified plans of the same employer must be distributed in a single taxable year.¹ "Single taxable year" means the calendar year (January–December), not a rolling 12-month window. You cannot take a partial distribution in December and the remainder in January and have both qualify.

If your employer sponsors both a 401(k) and a separate defined-benefit pension, you must generally distribute both in the same year for the distribution to qualify as a lump-sum. Verify with your plan administrator which plans are covered under the same plan number or employer EIN.

What are the four qualifying events for NUA?

Under IRC § 402(e)(4)(D), a lump-sum distribution qualifies for NUA only after one of four triggering events:¹

1. Separation from service — retirement, resignation, termination, or layoff. Does not include in-service termination with immediate rehire (e.g., a sham separation).
2. Death of the participant — triggers for beneficiaries receiving the distribution.
3. Total and permanent disability — required only for self-employed individuals; W-2 employees need only separation from service.
4. Reaching age 59½ — an in-service triggering event; allows NUA while still employed if the plan permits in-service distributions.

The distribution must be made in the taxable year the triggering event occurs or in a subsequent year. There is no expiration deadline, but once you roll assets to an IRA, NUA is lost permanently on those assets.

What if I already rolled the employer stock to an IRA?

NUA is permanently lost on any assets already rolled to an IRA. IRA distributions are 100% ordinary income regardless of the underlying asset's cost basis or appreciation history. This is the most common and most costly NUA mistake — rolling employer stock to an IRA on autopilot before anyone models the NUA alternative. If you are still inside the plan and have not rolled, the option remains available.

Can I do NUA with a former employer's 401(k)?

Yes. The triggering event (separation from service) already occurred when you left. If you have not yet distributed the account — and have not rolled it to an IRA — you can still elect NUA. There is no statute of limitations on how long after separation you can take the distribution. The only constraint is that the account must still be in the original qualified plan, not in a rollover IRA.

How do I find my cost basis in employer stock?

Your plan administrator is the authoritative source. Options for locating basis:

• Annual plan statements — many plans show cost basis by lot or in aggregate on your year-end statement.
• Cost basis detail report — request this specifically from your HR benefits department or plan administrator. Ask for basis by contribution lot or by date.
• Form 1099-R Box 5 — shows employee contributions (after-tax) already in the plan; this will be part of your cost basis for the employer stock purchased with those dollars.

Never estimate basis from current statements — even a small error changes the NUA amount reported in Box 6 of your 1099-R and your eventual capital gain calculation.

Is NUA appreciation automatically long-term capital gains — even if I sell immediately?

Yes. IRC § 402(e)(4) provides that the NUA in employer securities distributed from a qualified plan is treated as long-term capital gain when sold — automatically, with no holding period required.¹ If you receive shares in January and sell them in February, the NUA portion is still long-term capital gain. The 2026 long-term capital gains rates are 0% / 15% / 20% depending on taxable income.

Note: Any additional appreciation that accrues after the distribution date (stock price increases from distribution to sale) is subject to standard holding period rules — short-term if held less than one year, long-term if held more than one year.

Does the 10% early withdrawal penalty apply to the NUA appreciation?

No. The 10% penalty under IRC § 72(t) applies only to amounts "includible in gross income." Under NUA rules, only the cost basis is includible in gross income at distribution — the appreciation is explicitly excluded under § 402(e)(4).¹

Practical example: $1M of employer stock with a $50K cost basis, age 52. The penalty applies to $50K → $5,000 penalty. The $950K NUA appreciation is completely penalty-free. For high-appreciation positions, the penalty's impact on the total economics is modest.

What is reported on Form 1099-R for an NUA distribution?

• Box 2a — Taxable amount (cost basis of employer stock + any cash distributions)
• Box 5 — Employee contributions / cost basis of employer stock
• Box 6 — Net unrealized appreciation (the non-taxable appreciation at distribution)

When you sell the stock, the Box 6 amount flows to Schedule D as long-term capital gain. Your cost basis on Schedule D is the Box 5 amount. Keep your 1099-R — you will need it to correctly report the sale in a future year.

What if I have after-tax (non-Roth) contributions in my 401(k)?

After-tax (non-Roth) contributions are included in the cost basis of any employer stock purchased with those dollars. Higher cost basis reduces the NUA appreciation ratio but also reduces the ordinary income tax owed at distribution. In complex plans with a mix of pre-tax, Roth, and after-tax dollars, the NUA calculation requires careful lot-level analysis from your plan administrator.

A separate planning opportunity: after-tax (non-Roth) contributions can often be rolled directly to a Roth IRA tax-free in the same distribution event — sometimes called a "mega backdoor Roth" exit. This can be combined with an NUA election on the employer stock and a traditional IRA rollover of the pre-tax balance, resulting in a three-way split. This is a sophisticated maneuver that requires specialist planning.

Can I do partial NUA — elect NUA for some shares and roll the rest?

Yes. The lump-sum distribution requirement applies to all plan assets, but not all assets need to be employer stock. In a standard partial NUA, you distribute employer stock in-kind (NUA treatment on the stock) while simultaneously rolling all other plan assets — cash, bond funds, target-date funds — to a traditional IRA. You receive a single 1099-R with the stock distribution and a separate direct rollover of the non-stock assets.

Where the plan tracks shares by lot and allows specific-share identification, you can selectively NUA only the high-appreciation lots and roll the lower-appreciation lots. See Partial NUA Strategy: Optimizing the Split for the full framework.

Does NUA reduce required minimum distributions?

Yes. RMDs are calculated on the prior year-end balance of your pre-tax qualified plans and traditional IRAs. By distributing employer stock via NUA, you permanently remove that balance from the RMD calculation. The NUA appreciation, now held in a taxable account, can be sold on your own timeline — no mandatory distribution age, no forced ordinary income. See NUA and Required Minimum Distributions for a worked example showing RMD reduction at ages 73–80.

Can I do NUA more than once?

Not from the same employer's plan. A lump-sum distribution by definition distributes all remaining assets — there is nothing left for a second NUA. If you have employer stock in qualified plans from multiple different employers (for example, a prior employer's frozen 401(k) and your current employer's plan), each is evaluated separately under its own triggering event and could qualify for NUA independently.

Do I need a financial advisor to execute NUA?

The mechanics — requesting an in-kind distribution from your plan administrator and designating a brokerage account to receive the shares — can be handled directly. You do not need a financial advisor to push the button.

But the decision of whether to elect NUA, how much to elect (partial vs. full), how to time it relative to IRMAA look-back windows, Roth conversions, Social Security claiming, and estate planning is where specialist advisors provide substantial value. A generalist who defaults to a rollover without modeling NUA can cost the client $100K–$300K in lifetime taxes on a typical large position. The one-shot nature of the election means there is no do-over.

What happens if I die before selling the NUA stock?

If you hold the NUA stock in your taxable account at death, your heirs inherit it at its fair market value on your date of death — a stepped-up basis under IRC § 1014.² The NUA appreciation is permanently eliminated. Your heirs owe no capital gains tax on it. This is one of the most compelling arguments for NUA over a rollover in estate planning scenarios: the appreciation can pass to heirs completely free of income and capital gains tax, while IRA assets inherited by non-spouse beneficiaries are 100% ordinary income over a 10-year distribution period.

What if the participant dies with employer stock still inside the 401(k)?

Death is one of the four qualifying triggering events. A beneficiary who receives an inherited 401(k) with employer stock can elect NUA treatment — but must take a lump-sum distribution of all of that employer's plan assets in a single tax year. A beneficiary who rolls the inherited 401(k) to an inherited IRA instead permanently loses NUA treatment on those assets.

Unlike other inherited IRA assets, inherited 401(k) NUA stock does not get a stepped-up basis on the NUA appreciation — it passes through as capital gain when sold. The cost basis paid by the estate as ordinary income (IRD) does, however, qualify for an IRD deduction under IRC § 691(c) to offset the duplicative income. This is complex territory; beneficiaries facing this situation should consult a specialist before making any distribution election.

What is "net unrealized appreciation" — exactly how is it calculated?

NUA = Fair market value of employer stock at distribution date − Cost basis.

Cost basis is generally the total amount the plan paid for the shares: employee deferrals that purchased the stock, employer matching contributions at the time they were contributed, and reinvested dividends that were included in gross income when received. If the plan holds shares acquired at different prices over 30 years of contributions, the plan administrator calculates an aggregate cost basis across all lots.

Example: 401(k) holds $1.4M of employer stock. Plan records show aggregate cost basis of $70K. NUA = $1,330,000. Cost basis ($70K) taxed as ordinary income at distribution; NUA ($1,330,000) taxed as long-term capital gain when sold.