If your employer's 401(k) or other qualified retirement plan has ever offered company stock as an investment option, you may be sitting on a planning opportunity that a lot of people never hear about: Net Unrealized Appreciation, or NUA.
At The Capital Group, we work with employees and recent retirees across a range of industries who are trying to figure out the smartest way to handle appreciated company stock inside their retirement plan. This guide walks through the basics and the tradeoffs so you know what questions to ask before you roll over or distribute your account.
A note before we dive in: NUA intersects directly with tax planning, and the details matter enormously. This article is educational in nature and is not tax advice. We strongly encourage you to work with both a financial advisor and a qualified CPA before making any distribution decisions involving company stock.
The Basics: What Is Net Unrealized Appreciation?
Net Unrealized Appreciation refers to the growth in value of employer stock held inside a qualified retirement plan, typically a 401(k), profit-sharing plan, or ESOP, measured from the price at which the shares were originally acquired (your cost basis) to their current market value.
Normally, when you take money out of a 401(k), the entire distribution is taxed as ordinary income, whether it's cash, mutual funds, or stock. NUA is a special exception written into the tax code specifically for employer stock. Under an NUA strategy, instead of rolling your company stock into an IRA like the rest of your account, you distribute the shares directly into a taxable brokerage account. At that point: You pay ordinary income tax immediately, but only on your original cost basis (what the shares were actually worth when purchased or allocated to your account) not on the full current value. The appreciation on the NUA is not taxed until you sell the shares. When you do sell, that gain is taxed at long-term capital gains rates, regardless of how long you've personally held the shares after the distribution.
For employees who have accumulated significant, low-basis company stock over a career, this can mean a meaningful portion of the account's value shifts from being taxed at ordinary income rates (up to 37% federally) to long-term capital gains rates (generally 0%, 15%, or 20% federally).
How the Strategy Works.
NUA isn't something you can do at any time; it requires a specific set of conditions to be met: A qualifying triggering event. You generally must have separated from service (retirement, layoff, career change), reached age 59½, become disabled, or passed away (for a beneficiary). Simply wanting to move money around isn't enough.
One thing to note is the transaction has to be a true lump-sum distribution. The entire vested balance of the plan, not just the stock portion, must be distributed within a single calendar year. This typically means moving the non-stock portion to an IRA and the company stock to a taxable brokerage account, all within the same tax year.
In addition, it is important to not have previous partial distributions from the plan. If you've already taken distributions from the plan in the year(s) leading up to the lump-sum distribution, it may disqualify you from using NUA. This is one of the more common ways people accidentally lose access to the strategy.
Because the rules are unforgiving, there's very little room to fix a mistake after the fact. This is not a do-it-yourself decision. It needs to be coordinated with your plan administrator, your CPA, and your financial advisor before any paperwork is filed.
Who Might This Apply To?
NUA is worth exploring if several things are true at once:
- Your employer's 401(k), profit-sharing plan, or ESOP has offered company stock as an investment option (not all plans do; this is plan-specific, so it's worth checking your plan's fund lineup or your account statements).
- You've accumulated a meaningful amount of that stock over your career, and it has appreciated substantially from your original cost basis.
- You are approaching, or have recently had, a qualifying event, most commonly retirement or separation from a long-tenured employer.
- You haven't yet rolled the account into an IRA. Once employer stock is rolled into an IRA, the NUA opportunity is permanently lost; there's no way to unwind it.
This last point is important, and it's the reason timing matters. Many retirees roll their entire 401(k) into an IRA out of habit or convenience, without realizing that doing so forecloses a strategy that could have saved them meaningfully on taxes.
Tax Considerations You Can't Ignore
The major benefit of this strategy is being able to take some of your qualified plan and pay the lesser capital gains tax on the amount vs. Ordinary income tax. The bigger the spread between your cost basis and current value, the more valuable the strategy tends to be.
Because you owe ordinary income tax on your cost basis in the year of distribution, NUA can create a real, sometimes sizable, tax bill upfront, even before you've sold a single share. This needs to be modeled against your other income in that year, not considered in isolation.
For estate planning purposes, you receive no step-up in basis for NUA at death. Assets in a taxable brokerage account typically receive a step-up in cost basis when the owner passes away, erasing embedded capital gains for heirs. The NUA portion of company stock is a notable exception: it does not receive this step-up, which is an important consideration for estate planning.
Not all states treat capital gains preferentially the way the federal system does. Some states tax capital gains at the same rate as ordinary income, which changes the math on how much benefit NUA actually provides. This is worth checking specifically for your state of residence.
NUA is only attractive because you've built up a large position in employer stock but a large, low-basis position is also a concentration risk. Part of the conversation should always include a plan for diversifying over time, and understanding the capital gains cost of doing so.
Depending on your income level, the additional 3.8% NIIT may apply to the capital gains portion when shares are eventually sold.
When NUA May Not Make Sense
NUA isn't automatically the right move just because it's available. It tends to be less compelling when:
- The unrealized appreciation is relatively small relative to the cost basis, so there isn't much benefit to unlock.
- You expect to be in a low tax bracket in retirement anyway, narrowing the gap between ordinary income and capital gains rates.
- You need to preserve maximum flexibility and don't want a large, immediate tax bill in the year you separate from your employer.
- Estate planning goals favor keeping the stock inside a tax-deferred account, where beneficiaries may have more favorable options depending on the circumstances.
This is exactly why NUA is a "run the numbers" decision rather than a rule of thumb; the right answer depends on your specific cost basis, current value, tax bracket, state of residence, and broader financial picture.
How The Capital Group Can Help
At The Capital Group, we help employees and recent retirees evaluate whether an NUA strategy makes sense as part of their broader retirement and tax picture, modeling the upfront tax cost against the long-term benefit, coordinating the lump-sum distribution requirements with your plan administrator, and making sure the decision fits your overall estate and income plan.
If you have company stock inside a 401(k), profit-sharing plan, or ESOP and you're approaching retirement or a separation from your employer, it's worth having this conversation before you roll anything over.
Schedule a consultation with The Capital Group at 608-268-5100 or tcg@tcgwi.com.
This article is for informational and educational purposes only and does not constitute tax or legal advice. Please consult with a qualified tax advisor or CPA regarding your specific situation. Securities offered through Osaic Wealth, Inc., Member FINRA/SIPC.