If you spent a career at one company and your 401(k) is stuffed with its stock, net unrealized appreciation is worth understanding before you touch that account. Around Rochester I run into this constantly. The default move costs some people real money, and it happens quietly. A little financial planning ahead of the paperwork can change the outcome.

What Net Unrealized Appreciation Actually Is

Start with two numbers. What you paid for the company stock inside your 401(k), and what it’s worth now.

The difference between them is net unrealized appreciation. Simple as that.

Say you bought company shares over twenty years for a total of $80,000 and today they’re worth $400,000. The $320,000 of growth is the NUA. Nothing has been taxed yet, because it all sits inside the plan.

Why the Automatic Rollover Can Cost You

When people leave an employer, the standard advice is to roll the whole 401(k) into an IRA. Clean, simple, one account.

For most balances that’s fine. For highly appreciated company stock it can be expensive.

Once those shares land in an IRA, every dollar that eventually comes out is taxed as ordinary income. The tax code offers a different path for employer securities specifically, and rolling everything over closes that door permanently. There’s no undo button on that one.

How the Tax Treatment Splits

Here’s the interesting part.

If you move the company shares in kind to a taxable brokerage account instead of rolling them to an IRA, you generally owe ordinary income tax that year on the cost basis only. In the example above, that’s the $80,000, not the $400,000.

The $320,000 of appreciation isn’t taxed until you sell, and when you do, it’s generally taxed at long-term capital gains rates. Usually lower.

If you’re holding a large block of employer stock and haven’t looked at this, a short discovery call is a reasonable place to start.

The Rules That Have to Line Up

The requirements are unforgiving.

You need a triggering event: separation from service, reaching 59½, disability, or death. The entire plan balance has to be distributed within a single tax year. The employer shares have to move in kind, as actual shares, not sold and repurchased.

Miss one and the treatment is gone for good. The IRS retirement plans pages spell out the current requirements, and this is one topic where a tax professional earns their fee.

When It Doesn’t Make Sense

Plenty of times, honestly.

If your cost basis is high relative to current value, there isn’t much appreciation to shelter and the upfront tax bill may not be worth it. If decades of tax deferral inside an IRA outweigh the rate difference, the math flips.

Actually, let me put that more plainly. The bigger the gap between basis and market value, and the closer you are to needing the money, the more attractive this usually looks.

There’s also the question of how much of your net worth sits in one company. Personal question, not a formula.

Why This Comes Up So Often Here

Rochester built careers around a handful of large employers. Kodak, Xerox, Paychex, the hospital systems.

A lot of people here spent thirty years buying company stock inside a retirement plan without thinking twice about it. Now they’re near retirement holding a position with a very low basis. It adds up quietly.

That’s the situation where investment management and tax treatment have to be looked at together. FINRA’s resources for investors are a fair primer on single-stock concentration.

Frequently Asked Questions

Q: What is net unrealized appreciation? A: It’s the growth on employer stock held inside a company retirement plan, measured as the difference between what the shares cost when they went in and what they’re worth when distributed. The tax code treats that growth differently from the rest of the account.

Q: How does net unrealized appreciation work? A: You take the employer shares out of the plan in kind rather than rolling them into an IRA. You generally pay ordinary income tax on the original cost basis in the year of the distribution, then long-term capital gains rates on the appreciation whenever you sell.

Q: When can you use the net unrealized appreciation rule? A: Only after a qualifying triggering event, and only if the full plan balance is distributed within one tax year. Separation from service, turning 59½, disability, and death all qualify. The rules are strict, so confirm the details with your tax advisor before acting.

Net Unrealized Appreciation Deserves a Second Look

Net unrealized appreciation isn’t right for everyone, and the only way to know is to run your actual numbers: your basis, your holding, your tax picture, your timeline. If you’re sitting on company stock and wondering what to do with it, O’Keefe Stevens Advisory offers a free discovery call to talk it through.

Disclaimer

This material is provided for informational and educational purposes only and should not be construed as personalized investment, tax, legal, insurance, or financial planning advice. The information presented is general in nature and may not be applicable to your individual circumstances. Health insurance options, ACA subsidy eligibility, tax consequences, and retirement planning strategies vary based on individual factors and are subject to change. Readers should consult with their tax advisor, insurance professional, attorney, or financial advisor before making any financial or healthcare-related decisions.

Advisory services offered through O’Keefe Stevens Advisory, an investment adviser registered with the U.S. Securities & Exchange Commission. Registration with the SEC does not imply a certain level of skill or training.