NUA vs. IRA rollover: what each path taxes, and when

Path one: roll everything into an IRA

A direct rollover of the whole account — stock included — triggers no tax today. The full value keeps compounding tax-deferred, and you can sell the stock inside the IRA and diversify without a tax bill. The cost shows up on the way out: every dollar you eventually withdraw is taxed as ordinary income at your future rates, including all of the stock's appreciation, and required minimum distributions will eventually force withdrawals whether you need the money or not. Rolling the shares in also permanently forfeits the NUA option — capital-gains treatment on that appreciation is off the table from that moment.

Path two: elect NUA on the employer stock

In a qualifying lump-sum distribution, the employer shares move in-kind to a taxable brokerage account while the rest of the account rolls to an IRA. Two tax events follow. Now: the stock's cost basis is taxed as ordinary income (plus a possible 10% additional tax on that basis if you are under 59½ and no exception applies — separating from service in or after the year you turn 55 is the big one). Later, whenever you sell: the NUA — the appreciation that built up inside the plan — is taxed as long-term capital gain, and per IRS Publication 575 that long-term treatment applies to the NUA portion regardless of how long you hold the shares after distribution. Growth after the distribution is taxed like any other stock you own, long- or short-term by your holding period.

The trade, in one sentence: you prepay ordinary tax on the small piece (the basis) to move the big piece (the appreciation) from future ordinary rates to capital-gains rates — and you give up tax-deferred compounding on the stock to do it.

The three levers that decide it

• The basis ratio. Basis ÷ market value is the price of admission. At 15%, you prepay tax on a sliver to convert the bulk; at 60%, you prepay tax on most of the position for a modest conversion. Lower ratios push toward NUA; higher ratios push toward the rollover.
• Your bracket now vs. in retirement. The basis is taxed at today's ordinary rate; a rollover is taxed at your future ordinary rate. A big expected drop in retirement bracket erodes NUA's edge, because the rollover's future ordinary tax gets cheaper. Staying in a high bracket for life — common for executives with pensions, deferred comp, and large balances — preserves it.
• The holding horizon. Deferral is the rollover's compounding engine: the longer the money stays invested untaxed, the more that engine closes the rate gap. A sale within a few years gives deferral no time to work and favors NUA; a hold-for-decades plan gives the rollover its best case.

Beyond the three levers sit the factors no generic page can score for you: your state's treatment of capital gains, whether the 3.8% net investment income tax will apply when you sell, concentration risk in a single stock, a partial election on only the lowest-basis lots, and what happens to the NUA portion if you die still holding the shares. Every one of those is a bring-to-your-CPA question, and they can each move the answer.

Common questions