Many individuals preparing for retirement spend decades contributing to their 401(k), possibly accumulating shares of their employer’s company stock. But did you know that there’s a little-known tax strategy that could significantly reduce your tax bill when taking distributions? It’s called Net Unrealized Appreciation (NUA), and if your 401(k) includes employer stock, it’s an important concept.

In this blog, we break down NUA to the basics, walk through real-world examples, and explain how this strategy can fit into your broader retirement tax strategy. This is one of those topics that’s helpful to understand whether you’re already enjoying retirement or still preparing for retirement.

What is Net Unrealized Appreciation (NUA)?

Net Unrealized Appreciation (NUA) refers to the increase in value of employer stock held within a 401(k). Under certain conditions, you can transfer that stock out of your 401(k) and take advantage of lower long-term capital gains tax rates on the growth (the appreciation) rather than paying higher ordinary income tax rates.

This strategy only applies to individuals who hold company stock in their 401(k); for example, someone who worked for IBM and holds IBM stock inside their retirement plan. NUA provides a tax advantage by allowing you to pay ordinary income tax on the cost basis (the value of the stock when you acquired it) and capital gains tax on the growth.

Who Qualifies for NUA?

To qualify for Net Unrealized Appreciation 401K treatment, you must meet all the following:

1. You have employer stock in your 401(k) plan.
2. You are eligible for a 401k distribution—this typically means you’ve either:
   1. Separated from service,
   1. Reached age 59½ (and doing an in-service rollover 401k), or
   1. Triggered another qualifying event like death.
3. You must roll over the entire 401(k) account in a single calendar year. The employer stock portion goes into a taxable brokerage account, while the remainder goes into a traditional IRA.

Traditional 401(k) Rollover vs. NUA Strategy

Most people roll over their 401(k) into an IRA at retirement to gain access to a broader set of investment options and professional management. This is a smart move for many, but if you have company stock, a Retirement account rollover using NUA might save you thousands in taxes.

Here’s how it works:

Traditional IRA Rollover:

• All assets, including company stock, are rolled into a traditional IRA.
• All distributions from the IRA are taxed as ordinary income.

NUA Strategy:

• Company stock is moved to a brokerage account.
• The cost basis of the stock is taxed as ordinary income at the time of the transfer.
• The gain (appreciation) is taxed as long-term capital gains when you sell the stock.

This strategy can result in significant tax savings of 401k withdrawals, especially when the cost basis of the stock is low relative to its market value.

Real-World Example: IBM Stock

Let’s say you’re 65, retired from IBM, and your 401(k) has a balance of $800,000. Of that, $100,000 is in IBM stock, and the remaining $700,000 is in mutual funds.

You call your plan custodian and discover that the cost basis of your IBM shares is $40,000. That means there’s $60,000 of net unrealized appreciation in the stock.

Option 1 – Traditional Rollover to IRA:

If you roll the entire $800,000 to an IRA and later take a $100,000 distribution, the entire amount is taxed as ordinary income. Assuming a 22% federal tax bracket, you would pay $22,000 in taxes.

Option 2 – NUA Strategy:

You roll $100,000 of IBM stock to a brokerage account and the rest to a traditional IRA. Here’s how the taxes break down:

• Pay ordinary income tax on the $40,000 cost basis = $8,800
• Pay capital gains tax on $60,000 appreciation (assuming 15%) = $9,000 (when sold)
• Total tax bill = $17,800

Tax savings: $22,000 (IRA) – $17,800 (NUA) = $4,200 saved

This is why understanding NUA explained strategies can be so valuable.

Key Considerations Before Using NUA

NUA is not a one-size-fits-all solution. You need to evaluate:

1. Is your cost basis low enough?
   1. If the basis is too high (e.g., $85,000 out of $100,000), the benefit of paying capital gains tax on the gain diminishes.
2. Can you afford the tax on the cost basis?
   1. You must pay income tax on the cost basis in the year of transfer.
3. What is your current tax bracket?
   1. NUA is more attractive if you’re in a low tax bracket in the year of distribution.
4. Will this strategy push you into a higher tax bracket or impact Medicare IRMAA surcharges?
5. Long-term investment plans
   1. Once in a brokerage account, the stock is subject to market risk. You need a plan for how and when you’ll sell it.

Bonus Benefit: RMD Relief

One added perk of the NUA strategy is that employer stock moved to a brokerage account is not subject to Required Minimum Distributions (RMDs). This helps reduce the total size of your IRA and, in turn, may lower your future RMD obligations.

IRA vs Brokerage Account: What’s the Difference?

It’s important to understand the tax treatment of the two accounts used in this strategy:

• IRA: Pre-tax contributions. Withdrawals are taxed at ordinary income rates.
• Brokerage Account: After-tax money. You pay capital gains taxes only when investments are sold.

This makes a brokerage account, when used strategically, a powerful part of a retirement tax strategy.

When Should You Consider NUA?

Consider pursuing NUA if:

• You own company stock in your 401(k)
• The cost basis is significantly lower than the current value
• You are eligible for a qualifying event (age 59½ or separation from service)
• You want to lower your overall tax burden on retirement withdrawals
• You understand the mechanics of 401k distribution strategy

Avoid NUA if:

• Your cost basis is high (minimal appreciation)
• You’re in a high tax bracket and the extra income would push you into higher tax tiers
• You can’t afford the tax on the cost basis in the current year

Plan First, Act Second

The NUA strategy can be very valuable, but only if used at the right time, in the right way. This is why it’s important to work with a tax-aware financial advisor or planner who understands the details of NUA tax implications.

With thoughtful financial planning in retirement, NUA can be a helpful tool in your broader income and tax strategy.

We’ve covered the basics of NUAs and mentioned some retirement planning terms we’ve discussed before. Schedule a complimentary 15 minute call to ask your questions about NUAs and strategies that may be beneficial to your retirement plan.