Net unrealized appreciation, or NUA, is the gain on employer stock that has not been sold yet, and therefore no income tax has been paid on. The term is a term of art for employer stock held inside a qualified plan, such as a 401(k). This article focuses on the federal tax treatment of NUA transactions; state treatment could vary.

An NUA strategy delivers significant benefits when requirements centered on eligibility, a triggering event and the timing rules that follow it are met and are all set out in the plan documents. To capture the benefits below, you must distribute the entire plan balance within one year. You can roll the non-stock investments into an IRA, deferring tax on that portion, and move the stock into a taxable (non-IRA) account. That transfer creates a taxable event.

The main benefit is that you pay ordinary income tax only on the stock’s original cost basis, not its current market value. When the stock has appreciated substantially, that gap is where the savings live. You can then hold the NUA stock for any length of time, and the appreciation is still taxed at preferential long-term capital gains rates when (or if) you sell. Consult the plan administrator on the specific nuances of your plan.

Advantages

• The NUA treatment converts what would be ordinary income into long-term capital gain that’s taxed at preferential federal rates.

• The NUA amount (the unrealized appreciation) is not taxed at distribution.

• You control the timing—the NUA gain isn’t taxed until you sell the stock.

• The net investment income tax (currently 3.8 percent) doesn’t apply to the NUA gain, unlike gains on other stock you sell.

• May reduce future required minimum distributions (RMDs), since the stock leaves the plan balance. Weigh this against the basis you report at distribution, which could exceed the RMDs you would otherwise have taken.

• You can choose to apply NUA to a portion of the stock rather than all of it by distributing the “NUA treatment shares” and rolling over the portion that the NUA treatment is not intended to apply to. Those non-NUA shares could be rolled over to an IRA (where they would lose the ability to be treated as NUA) at the time that the employer plan is distributed, or the shares could be sold inside the plans.

• Bracket management—you might be able to time the distribution for a year when your other income is lower than usual.

• Certainty under current law. Rates and rules change, and NUA locks in the tax treatment for the year you distribute.

• If estate tax applies, the NUA stock qualifies for an income-in-respect-of-a-decedent (IRD) deduction. This is an advanced area, so bring in estate planning counsel if it’s relevant.

Disadvantages

• No basis step-up on inherited NUA stock. It keeps its original cost basis, which is an exception to the normal rules for inherited stock.

• Employer stock is often a concentrated position, which can leave the portfolio undiversified.

• The tax comes due without any cash distributed to cover it, since an NUA distribution is taxable but without cash being distributed to pay the tax, so plan to pay it from other assets.

• You give up continued tax deferral on the distributed amount, which would otherwise stay untaxed inside the plan.

• Consider state income tax—not every state offers preferential capital gains rates.

• The rules are intricate, and a single misstep can void the intended result.

For those who qualify, NUA can be tremendously valuable. But the strategy is highly fact-specific and carries real trade-offs. Anyone considering a qualifying distribution should get advice tailored to their situation.

The information provided is not intended as personalized investment, tax, or legal advice. There is no guarantee that any opinions, projections, or views expressed will materialize. You should consult a qualified professional before making financial decisions. Information is subject to change without notice and is believed to be reliable, but is not guaranteed.