Tax planning for Microsoft employees: a look at NUA.

If you've been at Microsoft for a long time, there's a reasonable chance some of your 401(k) is invested in Microsoft stock itself, and that a meaningful portion of what's there today is growth rather than what you originally contributed. That gap has a name in the tax code, and it opens up a planning option many people never quite hear about: Net Unrealized Appreciation, or NUA.

NUA does not apply in every situation, and it is not automatically the right move even when it does apply. If you are approaching retirement or thinking about leaving Microsoft, though, it is the kind of provision worth understanding before you decide what to do with the account.

We're a financial planning firm right down the road in Issaquah, minutes from the Redmond campus. Much of our work is walking through decisions exactly like this one with people who are approaching or already in retirement.

The gap between what you paid and what it's worth

NUA is the difference between the cost basis of your Microsoft stock inside the 401(k) and the market value of that stock today. When you take a qualifying distribution, usually at retirement, you may have the option to move the shares out of the 401(k) and into a taxable brokerage account. The cost basis is taxed as ordinary income at the time of distribution. The appreciation, which is the NUA, is taxed at long-term capital gains rates when you eventually sell the shares. Long-term capital gains rates are often lower than ordinary income rates.

Whether that shift produces a better outcome for you depends on your bracket now and later, how much appreciation you are sitting on, whether you would hold or sell the shares afterward, your state tax picture, and your overall financial situation. Which is really the point of running the numbers before you decide.

How the math might play out

Imagine an employee with a $40,000 cost basis in MSFT held inside the 401(k) and a current market value of $700,000. The appreciation, the NUA piece, is $660,000. Assume a 32% federal ordinary income bracket and a 15% federal long-term capital gains rate.

Under the assumptions used in this hypothetical illustration, the estimated federal tax difference between the two approaches is approximately $112,200. This figure reflects federal tax only. It does not account for state taxes, the Net Investment Income Tax, timing of sales, or other factors that may apply in an actual situation. The relative benefit of an NUA election may depend on several factors, including your tax bracket, the cost basis and appreciation of the shares, current and projected federal and state tax rates, and how long you intend to hold the shares after distribution.

There isn't a single right answer

NUA may be worth a closer look if you have been at Microsoft long enough to accumulate meaningfully appreciated MSFT inside the 401(k), you are able to hold the shares long enough for long-term capital gains treatment, and you expect to be in a relatively high bracket in retirement because of RSU vesting, deferred compensation, Social Security, RMDs, or other income.

It may not be the right move if your MSFT position inside the 401(k) is small or has not appreciated much, if you already hold a large concentrated MSFT position through RSUs and ESPP that adding to would push your concentration risk too high, if your retirement bracket is expected to be much lower than your working bracket, or if your liquidity, estate, or charitable goals point in a different direction. The right answer is genuinely situational.

Small requirements, real consequences

To qualify for NUA treatment, several specific things generally have to happen:

• The Microsoft stock must be distributed in-kind, meaning the actual shares transfer to a taxable brokerage account rather than being sold inside the plan for cash
• A lump-sum distribution of the entire 401(k) balance must occur after a triggering event such as separation from service, disability, reaching age 59½, or death
• The full 401(k) balance must be distributed within a single calendar year. The Microsoft stock generally goes to a taxable brokerage account, and other assets can be rolled to an IRA
• Any partial distributions taken after the triggering event but before the lump-sum can disqualify the NUA election entirely

The requirements are technical, and the mistakes are the kind that are hard to undo. If NUA is on the table for you, it is worth coordinating with a tax professional and financial advisor before initiating any distribution.

The question worth sitting with first

Microsoft employees often accumulate MSFT stock in more than one place: the 401(k), plus RSUs and ESPP outside of it. Before deciding to move additional shares into a taxable account through NUA, it is worth looking at what your total single-stock exposure would be afterward. NUA may provide different tax treatment on the appreciation, but it does not change the underlying risk of having a large share of your net worth tied to one company.

We work with Microsoft employees at exactly this moment

We're in Issaquah, minutes from the Redmond campus and the neighborhoods around it. A lot of the people we work with are current or former Microsoft employees, and a lot of the questions we get are the ones this article touches on: how to think about MSFT concentration, whether NUA fits their situation, when to sell what, and how the tax picture works across a full year. We tend to lead with teaching rather than pitching, because decisions like this one deserve to be understood.