NUA Strategy When Disability Is the Qualifying Event

Most employees who elect NUA do so at normal retirement or after a layoff. But disability is one of four qualifying events under IRC §402(e)(4) — and the circumstances around disability can actually make the NUA election more favorable than at a planned retirement. Here's what the rules say, when it helps, and what to watch for.

Disability as a qualifying event: what the law says

IRC §402(e)(4) defines a "lump-sum distribution" as the distribution of an employee's entire account balance within a single tax year, triggered by one of four events:

1. The employee's death
2. The employee reaching age 59½
3. The employee's separation from service
4. The employee becoming disabled (within the meaning of IRC §72(m)(7))

NUA treatment — the ability to take appreciated employer stock in-kind and have only the cost basis taxed as ordinary income, with the appreciation deferred and taxed as long-term capital gains — is available only on lump-sum distributions.¹ Disability is a full first-class qualifying event, equal in status to separation from service.

This matters because an employee who becomes disabled may not have formally separated from service. Some employers place disabled employees on long-term leave rather than terminating employment. In that situation, disability can be the triggering event even if employment has not technically ended. Verify with your plan administrator which triggering event the plan will recognize — most plans accept disability independently.

The IRS disability definition — stricter than you think

Not every medical condition that prevents work qualifies. The definition in IRC §72(m)(7) is precise:

"An individual shall be considered to be disabled if he is unable to engage in any substantial gainful activity by reason of any medically determinable physical or mental impairment which can be expected to result in death or to be of long-continued and indefinite duration."

The key phrase is "long-continued and indefinite duration." A temporary injury — even a serious one — that is expected to resolve within a year or two likely does not meet this standard. The IRS requires the impairment to be permanent or indefinite, not merely current.²

In practice, this means:

• A Social Security Disability Insurance (SSDI) award is strong evidence of qualifying disability — the SSA uses a similar "substantial gainful activity" standard
• A short-term disability policy (STD) that covers 3-6 months of recovery does not establish IRC §72(m)(7) disability
• Long-term disability (LTD) policies with definitions aligned to "own occupation" rather than "any occupation" may provide benefits before IRC §72(m)(7) is met
• Plan administrators may require physician certification, SSDI determination, or both before processing a disability-triggered lump-sum distribution

No 10% penalty for disabled employees

Under IRC §72(t)(2)(A)(iii), the 10% early withdrawal penalty does not apply to distributions "attributable to the employee's being disabled within the meaning of subsection (m)(7)."³ This waiver applies to the entire distribution — including the cost basis portion of an NUA distribution (which is ordinary income at distribution).

For context: an employee under age 55 who is NOT disabled and takes an NUA distribution would owe the 10% penalty on the cost basis amount. For someone with a $60,000 cost basis, that's $6,000 in additional tax. The disability waiver eliminates this entirely.

This is particularly meaningful for employees who become disabled in their 40s or early 50s — ages at which the Rule of 55 exception (separation from service in or after the year you turn 55) is not available. Disability is their clean penalty-free path to NUA.

Why the disability year often favors NUA

The cost basis portion of an NUA distribution is taxed as ordinary income in the distribution year. Minimizing that ordinary income rate is one of the key levers in NUA planning — which is why timing the distribution to a lower-income year is important.

Disability often produces exactly that lower-income year:

• No wages. The employee's W-2 income is eliminated or dramatically reduced. If wages were the primary income source, the distribution year is structurally low-income.
• LTD insurance may be partially or fully tax-free (see below — depends on who paid the premiums).
• SSDI waiting period. Social Security disability benefits don't begin until the sixth full month of disability. In the first disability year, many individuals receive no SSDI income at all.
• No RMDs yet. Unlike employees who retire in their 70s with significant RMD income, a disabled employee in their 50s has no required minimum distributions adding to income.

A lower distribution-year ordinary income means the cost basis is taxed at a lower marginal rate — potentially 22% instead of 32% or 35%. For a $60,000 cost basis, the difference between 22% and 35% is $7,800 in tax savings just on the basis portion, before counting the NUA appreciation benefit.

LTD insurance: how premium payers affect taxability

Long-term disability insurance benefits are taxable or tax-free depending on who paid the premiums:

If your LTD benefits are entirely or mostly tax-free — because you personally paid the premiums — your disability-year income may be very low. That's an unusually favorable environment for the NUA cost basis distribution. If your employer paid the premiums (the more common arrangement), the LTD income is fully taxable and increases your distribution-year ordinary income.

Request your group LTD policy documents to determine the premium-payer split before modeling the NUA decision.

SSDI timing and the disability year income picture

Social Security disability benefits have a five-month waiting period: you must be disabled for five full calendar months before the first SSDI payment. This means:

• An employee who becomes disabled in January receives no SSDI income until July of the same year, and the first payment typically arrives in August or later.
• An employee disabled in August receives no SSDI income in the disability year at all — the first eligible payment would arrive in February of the following year.

From an NUA timing perspective, executing the distribution in the first calendar year of disability can capture the zero-SSDI period, when income is lowest. In subsequent years, SSDI adds to income and can affect Social Security provisional income calculations — which is relevant to how much of the SSDI benefit itself becomes taxable. See the NUA + Social Security guide for the provisional income mechanics.

One additional note: once you receive SSDI, selling NUA stock (generating LTCG) can increase provisional income and cause up to 85% of SSDI benefits to become taxable. Tranche selling rather than selling all NUA stock at once may help manage this in subsequent years.

Worked example: Karen, 52, manufacturing plant manager

Karen worked for a large industrial company for 28 years. Her 401(k) holds $720,000 of employer stock with a cost basis of $48,000 (15:1 ratio). She suffered a serious neurological condition and qualifies as disabled under IRC §72(m)(7).

Disability year income:

NUA distribution:

With taxable income of $95,900 (single), Karen's marginal rate on the cost basis is approximately 22% — the entire $48,000 addition falls within the 22% bracket (which runs from $50,401 to $105,700 in 2026). Federal tax on the basis: approximately $10,560. No penalty.

Later, selling NUA stock: Karen holds the $720,000 in her taxable account. She sells $100,000 per year. With LTD income of $64,000 and standard deduction of $16,100, her taxable income from ordinary sources is ~$47,900. Adding $100,000 of LTCG brings her into the 15% LTCG bracket throughout. Federal LTCG tax on the full $672,000 NUA: approximately $100,800 (at 15%).

Total NUA path federal tax: $10,560 + $100,800 = $111,360

IRA rollover comparison: All $720,000 eventually comes out as ordinary income (via RMDs starting at age 73 or earlier withdrawals as needed). At a blended 22-24% rate: $720,000 × 22% = $158,400. At 24%: $172,800.

NUA saves Karen approximately $47,000–$62,000 in lifetime federal tax — while also giving her full control over the timing of stock sales, which the IRA rollover does not.

When NUA doesn't win despite disability

Disability improves the NUA math in most cases, but several factors can still make the rollover better:

• High LTD income with employer-paid premiums. If LTD replaces 70-80% of a high salary and premiums were employer-paid, the disability year may still be a high-income year. The basis portion of NUA is taxed at the higher rate, reducing the advantage.
• Residents of high-tax states. California, New York, New Jersey, and Oregon treat NUA appreciation as ordinary income for state purposes — the federal LTCG benefit disappears at the state level. A California resident who saves $50K federally may owe 9.3-13.3% state tax on the NUA appreciation regardless. See the NUA + state taxes guide.
• Low appreciation ratio. If the stock has only 2-3x appreciation, the breakeven may favor rollover — especially if the plan also has post-tax contributions, a low basis in cash equivalents, or if future tax rates are expected to be lower. Run the full model.
• Plan doesn't allow in-kind distribution. The NUA election requires the employer stock to be distributed in-kind — as actual shares, not cash. Some plans (particularly closely held ESOPs) prohibit in-kind distributions. This must be verified before any other planning step.

Terminal illness: disability + estate step-up

When disability is due to a terminal diagnosis, a different set of planning considerations emerges. If an employee elects NUA and holds the stock rather than selling it, the NUA appreciation — which would normally be taxed as LTCG when sold — receives a step-up in cost basis at death under IRC §1014. The appreciated stock passes to heirs with a new basis equal to the date-of-death fair market value, and the NUA appreciation permanently escapes both ordinary income tax and capital gains tax.

This is one of the most powerful NUA applications: a terminally ill employee with appreciated employer stock who executes NUA and then holds the stock until death can eliminate a lifetime of capital gains tax entirely. The estate still owes estate tax on the value above the $15M exemption (per OBBBA, 2025, applicable in 2026), but for most families the combined NUA + step-up result is significantly better than the IRA rollover alternative — where the stock never gets a step-up and all gains come out as ordinary income via inherited IRA distributions under the SECURE Act 10-year rule.

See the NUA + estate planning guide for the full IRD vs. step-up analysis.

Steps to take: disability NUA checklist

1. Confirm you meet the IRC §72(m)(7) definition. This typically means an SSDI determination, physician certification of indefinite or permanent impairment, or both — depending on your plan's documentation requirements. Temporary disabilities do not qualify.
2. Verify your plan allows in-kind stock distribution. Contact the plan administrator or your 401(k) recordkeeper and ask directly: "Can I take my employer stock as an in-kind distribution rather than a cash distribution?" If the answer is no, NUA is off the table.
3. Request your cost basis. The cost basis of employer stock in a 401(k) is the plan's purchase price — not what the stock is worth today. Your recordkeeper maintains this. See the NUA cost basis guide for how to request it and what to do if it's missing.
4. Model your distribution-year income. Project your disability-year taxable income from all sources: LTD insurance, any wages earned before disability, SSDI (if past the waiting period), other sources. Add the NUA cost basis. Determine which bracket the basis will land in and what the combined IRMAA exposure looks like two years forward.
5. Determine the lump-sum distribution window. All accounts of the same type with the same employer must be fully distributed within the same calendar year. If you also have a profit-sharing plan or a 403(b) from the same employer, coordinate the distributions to meet the lump-sum requirement.
6. Request the in-kind transfer. Submit a written distribution election specifying that employer stock be distributed in-kind to a taxable brokerage account. The non-stock portion (cash, bonds, mutual funds) should be directed to a rollover IRA. See the NUA execution guide for the exact mechanics.
7. Verify the 1099-R when it arrives. Box 6 should reflect the NUA amount (the appreciation above cost basis). This amount is excluded from Box 2a (taxable amount at distribution). Box 7 distribution code should reflect the distribution type. Any discrepancy should be corrected with the plan administrator before filing.

Sources

1. IRC § 402(e)(4) — Lump-sum distribution definition: disability (§72(m)(7)), death, age 59½, and separation from service as the four qualifying triggering events for NUA treatment on employer stock.
2. IRC § 72(m)(7) — Disability definition: unable to engage in any substantial gainful activity by reason of any medically determinable physical or mental impairment expected to result in death or to be of long-continued and indefinite duration.
3. IRS — Retirement topics: exceptions to the 10% additional tax on early distributions. IRC § 72(t)(2)(A)(iii) waives the penalty for distributions attributable to total and permanent disability under § 72(m)(7).
4. IRS Topic No. 412 — Lump-Sum Distributions: qualifying events, NUA election, and single-tax-year distribution requirement.
5. Social Security Administration — Disability evaluation criteria, substantial gainful activity, and the five-month waiting period for SSDI benefits.

NUA is a one-shot, irreversible election under IRC § 402(e)(4). Disability definition from IRC § 72(m)(7). Penalty waiver from IRC § 72(t)(2)(A)(iii). Tax brackets and standard deduction for 2026 per IRS Rev. Proc. 2025-32. LTCG rates for 2026 per IRS Rev. Proc. 2025-32. This page does not constitute tax, medical, legal, or financial advice — consult qualified specialists before making any distribution decision.