For many retirees, the transition from a workplace retirement plan to an IRA feels almost automatic.
You retire, leave your employer, and roll the old 401(k) into an IRA. The money stays tax-deferred, the investments become easier to manage, and everything is consolidated in one place.
But if your 401(k) contains a large amount of highly appreciated employer stock, that seemingly routine rollover could permanently change how that stock is taxed.
That is where a strategy called Net Unrealized Appreciation, or NUA, may come into play.
Suppose you are retiring with $1.3 million of company stock inside your 401(k).
Over the years, the plan paid just $130,000 for those shares. The remaining $1.17 million represents appreciation.
If you roll the entire position into a traditional IRA, there is generally no immediate tax bill. But eventually, distributions from the IRA are taxed under the ordinary income-tax rules that apply to traditional retirement accounts.
NUA creates a different possibility.
Instead of rolling the employer stock into the IRA, you may be able to distribute the shares directly into a taxable brokerage account.
In that case, the original $130,000 cost basis is generally recognized as ordinary income when the stock is distributed. But the $1.17 million of appreciation that occurred while the shares were inside the retirement plan—the net unrealized appreciation—may ultimately be taxed at long-term capital-gain rates when the shares are sold.
That distinction can be significant.
In this example, a retiree with $1.3 million of employer stock and just $130,000 of cost basis could potentially realize a substantial tax benefit by using NUA treatment rather than automatically rolling the shares into an IRA. Under the assumptions used here, the after-tax difference exceeds $366,000.
So Why Not Use NUA Every Time?
Because the tax treatment is only one part of the decision.
Using NUA may mean paying tax today on the stock’s cost basis rather than continuing to defer all taxation inside an IRA. It also means moving a potentially very large single-stock position into a taxable account.
That creates an entirely different planning question:
Do you still want to own that much of one company?
A $1.3 million employer-stock position may qualify for favorable tax treatment, but it is still a $1.3 million concentrated investment.
NUA may be worth evaluating when the employer stock has appreciated substantially, the cost basis is relatively low, the investor is in a high marginal tax bracket, there are sufficient assets available to cover the immediate tax cost, and the overall portfolio can handle the concentration risk.
That last point matters.
A strategy should not create unnecessary investment risk simply to save taxes.
There May Be an RMD Benefit Too
There is another potential planning advantage.
Once employer shares are distributed to a taxable brokerage account, those assets are no longer sitting inside an IRA subject to future required minimum distributions.
For someone with substantial retirement assets, that can influence future taxable income, Medicare premiums, charitable planning, and Roth-conversion opportunities.
Again, none of this means NUA is automatically the right answer.
It means the rollover decision deserves analysis.
The Timing Matters
NUA also comes with specific procedural requirements. The strategy generally involves a qualifying lump-sum distribution, with employer stock distributed in-kind and coordination among the plan administrator, financial advisor, and tax professional.
That makes this one of those planning opportunities that is much easier to evaluate before money starts moving.
Once highly appreciated employer stock is rolled into an IRA, the special NUA opportunity may no longer be available.
A 401(k) rollover can look like an administrative task.
But when company stock is involved, it can actually be a tax-planning decision, an investment decision, and a retirement-income decision all at once.
The question is not simply, “Can we roll this into an IRA?”
It's: What should happen to each part of the account, and why?
At Hanover Advisors, we believe those decisions should be evaluated in the context of the entire financial plan before the paperwork is submitted.