Should You Roll Over Company Stock from Your 401(k) to an IRA? Read This First.

The standard advice — "roll everything to an IRA when you retire" — is right for most 401(k) assets. For highly appreciated employer stock, it may be the costliest financial mistake you make in retirement. The Net Unrealized Appreciation (NUA) election can convert up to $300,000+ of ordinary income into long-term capital gains. But the window closes permanently the moment the stock enters an IRA.

Why company stock is different from other 401(k) assets

When most financial professionals say "roll your 401(k) to an IRA," they're thinking about mutual funds, bond funds, and target-date funds. The rollover advice is correct for those assets: tax-deferred growth, no immediate tax hit, consolidated account management.

Employer stock inside a 401(k) is different. It has a special tax election available under IRC § 402(e)(4) — the Net Unrealized Appreciation election — that simply doesn't exist for any other retirement account asset.¹ The election has been part of the tax code for decades, but many financial advisors either don't know it exists or don't know how to model it correctly.

The NUA election is relevant when two conditions are true:

• You have employer stock in a qualifying plan (401(k), profit-sharing plan, or ESOP)
• That stock has appreciated significantly above what you (or the plan) originally paid for it

If your employer stock has grown 5x, 10x, or 20x from its original cost, the question of whether to roll it over or elect NUA is worth serious analysis — and the answer often favors NUA by a wide margin.

What the NUA election actually does

When you elect NUA at retirement or separation from service, instead of rolling the employer stock into an IRA, you distribute it in-kind to a taxable brokerage account. Here's how it's taxed:

• Cost basis: The original purchase price of the stock (what the plan paid for it) is treated as ordinary income in the year of distribution. You pay income tax on this amount immediately.
• NUA amount: The appreciation above cost basis — called the Net Unrealized Appreciation — is automatically treated as long-term capital gain when you eventually sell the stock, regardless of how long you hold it after distribution.¹
• Post-distribution gains: Any additional gains after the distribution date are taxed at short-term or long-term capital gains rates depending on your holding period, just like any other taxable investment.

The tax benefit comes from the rate differential. In 2026, ordinary income tax rates run 10–37%.² Long-term capital gains rates are 0%, 15%, or 20% depending on your income.² For a retiree in the 24% ordinary income bracket, the NUA election converts that bracket rate to 15% on the appreciation — a 9-percentage-point reduction. For someone at the 37% rate, the spread is up to 17 percentage points, plus the 3.8% NIIT can apply to both scenarios at high income levels.

The rollover tax cost: a worked example

Michael is 63 and retiring this year. His 401(k) holds $750K in his former employer's stock — 28 years of employer contributions and some of his own deferrals. The plan's cost basis (what the plan originally paid) is $75K. The stock has increased 10x.

His plan administrator hands him a rollover form. His generalist financial advisor says "just roll it to an IRA, keep things simple." Michael is about to make a $70,000+ mistake.

That's a simplified comparison — it doesn't account for the time value of tax deferral in the IRA, state taxes, IRMAA, or NIIT. But it illustrates the core: the NUA election converts $675K of what would eventually be ordinary income into long-term capital gains, saving roughly 9 cents on every dollar of appreciation.

For higher-ratio positions, the savings are proportionally larger. A $1.2M position with $60K basis (20:1 ratio) could save $150K–$220K depending on brackets and state taxes. For positions held until death, the estate step-up can eliminate the capital gains tax on the appreciation entirely — meaning the NUA election effectively produced tax-free appreciation on the entire built-up gain.

When NUA beats the rollover — and when it doesn't

NUA is not the right call in every situation. Before concluding that NUA beats rollover, these factors need to be modeled:

NUA typically wins when:

• Appreciation is high (5x+ ratio) — The larger the spread between basis and current value, the bigger the rate-arbitrage benefit. At 10x, NUA almost always wins for federal purposes.
• Your tax bracket is high — If you're in the 32–37% ordinary income bracket, converting that rate to 15–20% LTCG on the appreciation is extremely valuable.
• You live in a state with no income tax or a LTCG differential — States like Florida, Texas, and Nevada have no income tax, meaning NUA captures both federal and state savings. In California and New York, there's no state capital gains differential, which reduces (but doesn't eliminate) the NUA benefit.
• You have estate planning goals — If you intend to hold the stock until death, appreciated employer stock in a taxable account gets a step-up in basis under IRC § 1014 (OBBBA, July 2025, made the $15M estate exemption permanent, but the step-up applies to much smaller estates). The NUA appreciation becomes income-tax-free at death. Pre-tax IRA assets have no step-up and remain ordinary income for heirs.
• You have RMD concerns — Moving stock out of the 401(k) via NUA permanently reduces the pre-tax balance subject to RMDs. Forced RMDs from a large IRA can push you into higher brackets and trigger IRMAA — NUA avoids that.

Rollover may be better when:

• Appreciation is modest (under 2–3x) — At low appreciation ratios, the rate arbitrage is small and may not offset the upfront ordinary income tax hit on the basis plus the loss of tax-deferred compounding.
• You need immediate diversification — NUA works best when you can sell the stock gradually. If you need to sell immediately and are at the 20% LTCG rate plus 3.8% NIIT, the total rate (23.8%) is closer to ordinary income rates. Use the NUA vs Rollover Calculator to model your specific rate.
• You live in California, New York, or New Jersey — These states tax long-term capital gains as ordinary income, eliminating the state-level arbitrage. The federal NUA benefit still exists, but the total savings are smaller. See the state taxes guide for the breakeven ratio in your state.
• You're under 55 and have low appreciation — Under the Rule of 55, employees who separate at 55 or older can withdraw from the 401(k) without the 10% early withdrawal penalty. Below that age, the 10% penalty applies to the cost basis (not the appreciation). At low appreciation ratios, the penalty can tip the math toward IRA rollover. See the under-55 guide for the crossover analysis.

5 things to verify before you roll over

If you have appreciated employer stock in your 401(k) and are approaching retirement or separation, run these five checks before initiating any rollover. Each takes less than 30 minutes but protects against an irreversible mistake.

1. Get the cost basis from your plan administrator. Call or log into your 401(k) recordkeeper and request the "plan cost basis" or "investment in contract" for your employer stock. This is the total amount the plan paid for the shares currently in your account. It's often surprisingly low — especially for long-tenure employees whose shares were contributed over decades at much lower prices. If your plan can't provide it easily, see the cost basis guide for how to reconstruct it.
2. Calculate your appreciation ratio. Divide the current market value by the cost basis. A 10x ratio ($750K / $75K) means 90% of the stock's value is appreciation — all potentially eligible for LTCG treatment under NUA. A 2x ratio ($150K / $75K) means 50% is appreciation — a smaller but still potentially meaningful opportunity.
3. Verify your plan allows in-kind stock distribution. NUA requires that the employer stock be distributed in-kind (as shares of stock, not as cash) to a taxable brokerage account. Most 401(k) plans allow this, but some — particularly closely held company ESOPs — restrict in-kind distributions. Call your plan administrator and ask specifically: "Can I receive my employer stock as an in-kind distribution in shares to a brokerage account?"
4. Confirm you have a qualifying triggering event. NUA is only available in the year of a qualifying event: separation from service, reaching age 59½, total disability, or death.¹ Most retirees and job-changers have separation from service — but you must distribute the entire plan balance in the same calendar year as the triggering event. If you've had any prior distributions from the same plan (hardship withdrawals, loan defaults), consult a specialist before proceeding.
5. Run the numbers before signing anything. Use the NUA vs Rollover Tax Calculator with your actual cost basis, appreciation, tax bracket, and state. Get a directional answer. If NUA appears to save $30,000 or more, it's worth a detailed analysis by a specialist before any distribution. If NUA appears to be a wash or negative, rollover may well be the right call — but at least you'll know you made an informed choice.

The point of no return

The most important fact about the NUA election: it is available only if you act before the stock enters an IRA.

Once you complete an IRA rollover — even temporarily, even accidentally — the NUA election is permanently gone. IRC § 402(c)(1) treats a rollover as a distribution followed by an IRA contribution.³ From that point forward, the account is IRA money. All eventual distributions will come out as ordinary income. There is no reversal, no exception, no amended return that corrects it.

This is the key asymmetry: if you stop to evaluate NUA first and decide rollover is better, you've lost nothing — the rollover is still available. If you roll over first and then discover NUA would have saved you $80,000, there is no recovery. The direction of regret is one-sided.

The professional default at many large financial institutions is to recommend IRA rollovers for retirement assets. Rollover is often the right advice for 401(k) mutual fund holdings. But rollover forms don't distinguish between mutual funds and highly appreciated employer stock — they treat everything the same. It's on you (or your advisor) to flag that the employer stock deserves a separate analysis before any distribution is initiated.

Sources

1. IRC § 402(e)(4) — Net Unrealized Appreciation election: in-kind distribution mechanics, lump-sum distribution requirement, four qualifying triggering events, and automatic long-term capital gain treatment for the NUA amount. § 402(c)(1) governs the IRA rollover treatment that eliminates NUA eligibility.
2. IRS — 2026 Tax Inflation Adjustments (Rev. Proc. 2025-32): ordinary income bracket thresholds (37% top rate above $384,351 single / $768,701 MFJ); LTCG 0% threshold $49,450 single / $98,900 MFJ; 20% threshold above $533,400 single / $613,700 MFJ.
3. IRS Topic No. 412 — Lump-Sum Distributions: lump-sum distribution definition, qualifying triggering events, NUA election mechanics, and the irreversibility of the IRA rollover for NUA purposes.
4. IRS Publication 575 — Pension and Annuity Income: NUA tax treatment, in-kind distribution requirement, 1099-R Box 6, and interaction with estate step-up rules.
5. IRS Topic No. 559 — Net Investment Income Tax (NIIT): 3.8% surtax on capital gains above $200K single / $250K MFJ MAGI; applies to NUA appreciation when sold at high-income levels.

Tax rates and brackets verified against 2026 values per IRS Rev. Proc. 2025-32 (October 2025). NUA election rules under IRC § 402(e)(4). IRA rollover mechanics under IRC § 402(c). Estate step-up under IRC § 1014. OBBBA (July 2025) made the $15M estate/gift exemption permanent — no 2026 sunset applies. This page is for informational purposes only and does not constitute tax, legal, or financial advice. Values verified as of May 2026.