NUA (Net Unrealized Appreciation) Calculator

Frequently Asked Questions

What is Net Unrealized Appreciation (NUA)?

NUA is a tax strategy for highly appreciated employer stock inside a 401(k). You transfer the shares in-kind to a taxable account at retirement and pay ordinary income tax only on the cost basis now; the appreciation (NUA) is taxed at long-term capital-gains rates when sold. Educational only.

When is NUA worth using vs an IRA rollover?

NUA tends to win when the cost basis is a small fraction of current value and your ordinary income tax rate is much higher than long-term capital-gains rates. If the stock has barely appreciated or you are in a low bracket, a straight IRA rollover (all ordinary income at withdrawal) is often simpler and cheaper.

What triggers NUA eligibility?

A qualifying lump-sum distribution within one tax year following a triggering event (separation from service, death, disability, or reaching age 59½). Partial distributions or rolling shares to an IRA first disqualifies the NUA treatment.

Are there risks to consider?

You concentrate wealth in a single stock outside a retirement wrapper, lose future tax-deferral on that money, and owe ordinary income tax on the basis immediately. Diversification, tax bracket and state taxes all matter - consult a tax professional before electing NUA.

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Estimates for informational purposes only.

Important Disclaimer: Estimates for informational purposes only.

This calculator provides estimates for informational purposes only. Results are based on assumptions and may not reflect actual outcomes. Consult qualified professionals in relevant fields before making important decisions based on these results.

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How This Calculator Works

Net Unrealized Appreciation (NUA) is a special tax election for employer stock held inside a 401(k). Instead of rolling the shares into an IRA where every future dollar comes out as ordinary income, you can take the shares in kind in a lump-sum distribution: you pay ordinary income tax now only on the stock's original cost basis, and the appreciation - the NUA - is taxed at the lower long-term capital gains rate whenever you sell. This calculator contrasts the two paths. It computes the total tax under the NUA election (ordinary tax on basis plus capital-gains tax on appreciation) against the tax under a full IRA rollover (the entire market value eventually taxed as ordinary income). It then shows which path costs less, the dollar difference, and the breakeven capital-gains rate at which the two strategies tie. NUA tends to win when the stock has appreciated substantially and the gap between your ordinary and capital-gains rates is wide.

Formula / Method

Let MV be market value, B the cost basis, and appreciation = MV − B. NUA tax = B × ordinary rate + (MV − B) × LTCG rate.Rollover tax = MV × ordinary rate, the worst-case where all of it is later withdrawn at the ordinary rate. The estimated savings is rollover tax − NUA tax; a positive number means the NUA election is cheaper. The breakeven is the long-term capital-gains rate at which the two totals are equal, found by setting NUA tax equal to rollover tax and solving for the appreciation rate - below that rate NUA wins, above it the rollover is competitive. This model ignores deferral timing (an IRA delays the tax for years, which has present-value value) and any 10% early-distribution penalty on the basis portion, so treat it as a rate-comparison snapshot. Inputs are validated so a basis larger than market value, or any blank/negative field, is rejected before the math runs.

Worked Example

Suppose employer stock is worth $300,000 with a $60,000 cost basis, your ordinary rate is 32%, and your long-term capital-gains rate is 15%. Appreciation is 300,000 − 60,000 = $240,000. Under NUA you pay 60,000 × 32% = $19,200 on the basis now plus 240,000 × 15% = $36,000 on the gain when sold, totaling $55,200. A full rollover instead exposes the whole $300,000 to the 32% ordinary rate, or $96,000 of tax. NUA saves about $40,800 here - a large edge driven by the low 20% basis ratio and the 17-point spread between the ordinary and capital-gains rates.

Common Mistakes

Ignoring the value of tax deferral - an IRA postpones tax for years, which partly offsets the higher eventual rate.

Forgetting the 10% early-withdrawal penalty can apply to the basis amount if you are under 59½.

Botching the lump-sum-distribution requirement: NUA needs a qualifying triggering event and the whole account distributed within one tax year.

Applying NUA to non-employer assets - only the employer's own stock in the plan qualifies.

Assuming the appreciation is always long-term; gains after the distribution date may be short-term until the new holding period is met.

Tips & FAQ

When is NUA most powerful? When the cost basis is a small fraction of market value and your ordinary rate sits well above your capital-gains rate. Can I do a partial NUA? The favorable treatment requires a qualifying lump-sum distribution of the entire plan in one year, though you may roll the non-stock portion to an IRA. What about the deferral I give up? Compare the immediate basis tax against years of tax-deferred IRA growth; for low-basis, highly appreciated stock NUA usually still wins. Does the heir get a step-up? The NUA portion does not receive a step-up at death, an important estate consideration. This calculator is educational and not tax advice; NUA elections are irreversible, so consult a qualified tax professional first.

NUA (Net Unrealized Appreciation) Calculator

Frequently Asked Questions

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