NUA Rule: Save Six-Figure Taxes on Appreciated Company Stock at Retirement

Learn about the Net Unrealized Appreciation (NUA) rule that can cut taxes on appreciated company stock for retiring employees. Plan early to save big now.

Buried deep in the tax code is a powerful, little-discussed rule that can drastically reduce taxes for a retiring employee holding highly appreciated company stock. Known as Net Unrealized Appreciation (NUA), this provision can turn a potential six-figure tax bill into substantial tax savings — if you use it before it’s too late.

What is NUA? Net unrealized appreciation applies when employer securities are distributed from a qualified retirement plan (like a 401(k)) as part of a lump-sum distribution after separation from service, death, or disability. Instead of rolling the stock into an IRA (where future gains are taxed as ordinary income on withdrawal), NUA lets you pay ordinary income tax only on the cost basis at distribution and long-term capital gains tax on the appreciation when you sell the shares.

Why this matters: appreciated company stock in a retirement account can accumulate massive unrealized gains. If you roll those shares into an IRA and later withdraw, the full amount is taxed as ordinary income — often at a much higher rate than capital gains. With the NUA rule, the appreciation is eligible for long-term capital gains treatment, which can save retiring employees thousands or even six figures in taxes.

Key requirements and limitations: to qualify for NUA you usually need a lump-sum distribution in a single tax year that includes employer securities, and the distribution must occur after separation from service (or due to death/disability). The plan’s rules matter, and not every distribution option triggers NUA. Importantly, once employer stock is rolled into an IRA, NUA treatment is lost.

Why many advisors miss it: NUA requires timing and plan coordination. Too often financial advisors discuss distribution strategies after an employee has already rolled assets into an IRA — when the opportunity is gone. Retirement tax planning that includes employer stock should happen well before separation.

Action steps: review your retirement plan’s distribution options, get cost-basis documentation, and consult a tax advisor or financial planner experienced with NUA and retirement tax strategies. Early awareness and a coordinated plan with HR and your advisor can protect you from an unnecessary six-figure tax bill and maximize your retirement proceeds.

Back