Concentrated Stock & NUA Planning for Bay Area Investors
One stock built much of your wealth. Unwinding it deserves a plan, not a guess.
For Bay Area households holding a large position in a single company, often an employer, the order, timing, and method of selling can change how much tax you owe and how much risk you carry along the way. We help you weigh those choices, including the Net Unrealized Appreciation (NUA) election for employer stock held in a 401(k).
Why concentration is so common here, and so hard to undo.
In the Bay Area, concentrated positions usually arrive honestly: years of RSU vesting, option exercises, ESPP purchases, employer stock in a 401(k), or an early investment that grew far beyond what anyone expected. The result is often the same. A single company ends up representing a large share of a household's net worth, and frequently it is the same company that pays the salary.
Most people in this situation already know the position is large. What holds them back is the tax bill that comes with selling, the fear of selling right before the stock rises further, and not knowing which of the available approaches fits their circumstances. Doing nothing feels safe, but it is also a decision, and it keeps both your career and your portfolio tied to one company's fortunes.
There is rarely a single right answer. There is usually a sensible sequence, built around your tax picture, your cash needs, your time horizon, and how much single-company risk you are willing to keep. That sequence is what we help you build.
Before you roll over a 401(k) that holds employer stock. If the employer shares are rolled into an IRA, the NUA opportunity for those shares is permanently lost. The NUA decision must be made before the rollover, not after.
Within the distribution year. NUA treatment generally requires the entire balance of the employer's plans of the same type to be distributed within a single calendar year following a qualifying event. Starting late in the year leaves little room for plan processing delays.
Before year-end for staged sales. Spreading sales across tax years only works if the first sale lands in the right year. Planning in the fall is very different from planning on December 28.
Approaches we evaluate for unwinding a concentrated position.
Every approach below trades something for something else: tax cost, time, flexibility, cost of implementation, or how much of the stock's upside and downside you keep. We compare them against your specific facts before recommending any of them, and often combine several.
Multi-year selling plans
Selling in planned tranches across several tax years, sized to manage your bracket, the 3.8% Net Investment Income Tax, and Medicare premium thresholds, rather than realizing the entire gain at once.
Offsetting gains with harvested losses
Realizing losses elsewhere in a taxable portfolio, sometimes through a separately managed or direct-indexing approach, to offset gains from selling the concentrated shares.
Giving appreciated shares
For charitably inclined households, donating low-basis shares directly to a charity, donor-advised fund, or charitable remainder trust can reduce concentration without selling the shares yourself.
Protective collars and similar strategies
Option-based strategies can limit downside on shares you are not ready to sell. For insiders, these typically require employer pre-clearance and may be prohibited by company policy.
Pooled diversification vehicles
Private funds that let qualifying investors contribute concentrated shares in exchange for an interest in a diversified pool, generally without an immediate taxable sale.
Net Unrealized Appreciation election
For employer stock held inside a 401(k) or similar qualified plan, NUA can allow the growth on those shares to be taxed at long-term capital gains rates rather than as ordinary income. It is explained in detail below.
For executives subject to trading windows, any of these may need to operate through a 10b5-1 trading plan. We coordinate with your employer's counsel and stock plan administrator on that structure, as described on our equity compensation planning page.
NUA in plain language.
When you own your employer's stock inside a 401(k), the value of those shares has two parts: what the plan paid for them (the cost basis) and the growth since then (the net unrealized appreciation). A normal IRA rollover treats all of it the same way. Every dollar eventually comes out as ordinary income.
The NUA election separates those parts. You take the employer shares out of the plan in kind, into a regular taxable brokerage account, instead of rolling them into an IRA. The rest of the plan can still roll over to an IRA. Here is how the three pieces of value on those shares are generally taxed.
1. Cost basis
Taxed as ordinary income in the year the shares leave the plan. If you are under 59½ and no exception applies, a 10% additional tax may apply to this amount.
2. The NUA itself
Not taxed at distribution. Taxed at long-term capital gains rates when you sell, regardless of how long you hold the shares afterward.
3. Growth after distribution
Taxed as short- or long-term capital gain depending on how long you hold the shares after they leave the plan.
Proportions shown are hypothetical and for illustration only. They do not represent any client, security, or expected result. Your plan's actual cost basis figures determine the split.
The general idea: the lower your cost basis relative to today's value, the more of the position may qualify for capital gains treatment instead of ordinary income. The higher your basis, the less NUA tends to help.
NUA compared with a standard IRA rollover.
Neither path is better in every case. The table summarizes how each is generally treated under current federal rules, with California noted separately because it changes the math for Bay Area residents.
| Consideration | NUA distribution of employer shares | Standard rollover to an IRA |
|---|---|---|
| Tax when shares leave the plan | Cost now Ordinary income tax on the cost basis in the distribution year. |
No tax at the time of a direct rollover. |
| Tax on the appreciation (NUA) | Potential advantage Long-term capital gains rates when sold, regardless of holding period after distribution. |
Taxed as ordinary income when eventually withdrawn. |
| Growth after distribution | Capital gains when sold; dividends taxed each year. | Potential advantage Grows tax-deferred; taxed as ordinary income when withdrawn. |
| Diversifying the position | Each sale is a taxable event. | Potential advantage Shares can be sold inside the IRA and reinvested without current tax. |
| 10% early withdrawal tax (under 59½) | May apply to the cost basis only, unless an exception applies. | May apply to any withdrawal before 59½ unless an exception applies. |
| 3.8% Net Investment Income Tax | Under current Treasury regulations, the NUA portion is not treated as net investment income. Later growth and dividends may be. | IRA distributions are not net investment income, though they raise income that can trigger the tax on other investments. |
| Required minimum distributions | Potential advantage Shares held in a taxable account are not subject to RMDs. |
Subject to RMDs beginning at the applicable age under current law. |
| At death | The NUA portion does not receive a basis step-up; heirs owe capital gains tax on it when sold. Growth after distribution may receive a step-up under current law. | No step-up. Most non-spouse beneficiaries must withdraw the account within 10 years and pay ordinary income tax. |
| California state tax | No state rate advantage California taxes capital gains as ordinary income, so the rate benefit of NUA is primarily federal. |
Withdrawals taxed as ordinary income by California. |
| Flexibility and complexity | One-time, irreversible election with strict distribution rules. Requires careful basis tracking and tax reporting. | Potential advantage Simpler to execute. Keeps future options open, including a later decision to withdraw. |
Important: This table is a general, educational summary of federal and California tax treatment as understood at the time of writing. It is not a recommendation and does not predict any outcome. Whether NUA produces a lower total tax cost than a rollover depends on your cost basis, current and future tax brackets, age, holding period, the stock's future price, state of residence, estate plans, and other factors. In some situations a rollover, or a combination of both approaches applied to different share lots, may be more favorable. Tax laws and regulations change and may be applied differently to your facts.
Index Gurus, Inc. does not provide tax or legal advice. Any NUA decision should be reviewed with your CPA or tax attorney before a distribution is requested. Labels such as "potential advantage" describe the general direction of a rule, not a result you should expect.
How we work through an NUA decision, step by step.
This is the checklist we follow with clients evaluating NUA. Each phase has to be complete before the next starts, because mistakes in the early steps are often impossible to fix later.
Confirm eligibility and gather records
Before any modeling, we establish whether NUA is available and what it would apply to.
- Identify the qualifying event and its date. For employees this is generally separation from service, reaching age 59½, or death.
- Obtain the plan's cost basis for the employer shares, lot by lot if the plan tracks it that way.
- List every plan of the same type sponsored by the employer, since all may need to be distributed in the same year.
- Review any distributions already taken since the qualifying event, which can affect eligibility.
- Confirm the plan allows in-kind distribution of shares and note its processing timeline, forms, and any spousal consent requirement.
Model the alternatives side by side
We compare NUA, a full rollover, and partial approaches using your actual numbers.
- Calculate the ratio of cost basis to current value for each share lot.
- Estimate the ordinary income from the basis and its effect on your federal bracket, California tax, and Medicare premium surcharges (IRMAA) two years later.
- Test whether the 10% additional tax could apply and whether an exception, such as separation in or after the year you turn 55, is available.
- Decide which lots to distribute in kind and which to roll over. NUA does not have to be all or nothing; higher-basis lots are often better rolled over.
- Model different sale timelines, including holding versus diversifying soon after distribution, and the estate impact of holding shares for heirs.
- Plan how the tax on the basis will be paid, including estimated payments or withholding.
- Review the analysis with your CPA before anything is submitted.
Execute the distribution correctly
The mechanics matter as much as the decision. Errors here can eliminate NUA treatment.
- Open a taxable brokerage account to receive the employer shares and a rollover IRA for the remaining balance, titled consistently.
- Request the in-kind distribution of the selected employer shares to the taxable account. Do not sell them inside the plan first.
- Request a direct rollover of the remaining plan assets to the IRA.
- Confirm the plan's withholding on the taxable portion and adjust estimated payments if needed.
- Verify that every qualifying plan balance reaches zero within the same calendar year.
- Confirm the shares arrive with the correct cost basis recorded and keep copies of every confirmation.
Report accurately and begin diversifying
After the distribution, the work shifts to tax reporting and reducing the concentration on a deliberate schedule.
- Review Form 1099-R from the plan, including the NUA amount it reports, and share it with your CPA.
- Correct any basis errors on the brokerage account so future sales are reported properly.
- Carry out the agreed selling schedule, sized to your tax brackets across years.
- Pair sales with loss harvesting, charitable gifts of shares, or hedging where they fit your plan.
- Reinvest proceeds into a diversified portfolio consistent with your goals and risk tolerance.
Review annually and plan for heirs
Remaining shares and the new IRA both need ongoing attention.
- Revisit the remaining position each year as prices, tax law, and your income change.
- Update beneficiary designations on the new rollover IRA.
- Coordinate with your estate attorney on which shares to hold, gift, or leave to heirs, given that NUA does not receive a step-up in basis.
- Integrate the IRA into your retirement withdrawal and Roth conversion planning.
When NUA may not be the right choice.
A fair evaluation includes the situations where NUA tends to work against you. These are among the most common.
High cost basis relative to current value
If most of the shares' value is basis, NUA accelerates ordinary income tax now in exchange for little capital gains benefit later.
No comfortable way to pay the tax on the basis
The tax is due for the distribution year. Selling shares or drawing down other savings to pay it can undercut the purpose of the strategy.
A long time horizon that favors tax deferral
Decades of tax-deferred growth and free rebalancing inside an IRA can outweigh the rate difference, particularly for younger investors.
Plans to hold the shares for heirs
Because the NUA portion does not receive a basis step-up at death, holding NUA shares for the next generation is often less efficient than other assets.
Keeping the shares to save tax
NUA is a tax election, not a reason to stay concentrated. If the stock declines after distribution, the tax advantage may be smaller than the loss.
A concentrated position touches every part of your plan.
How and when you unwind a large holding affects your tax return this year, your retirement income later, your charitable plans, and what your heirs receive. We work on it as part of the full picture, alongside your CPA and estate attorney.
This work connects directly to our equity compensation planning for stock acquired through RSUs, options, and ESPP; our retirement income planning as you decide how the IRA and taxable accounts will fund retirement; our comprehensive financial planning for high-net-worth households; and our active investment management for the diversified portfolio built from the proceeds.
How an engagement works.
Discovery call
A 30-minute conversation at no cost and with no obligation, to understand your position, where it is held, and the decisions ahead. We will tell you honestly whether an engagement makes sense.
Analysis and recommendations
A focused planning engagement that models your alternatives, including NUA where it applies, and produces written recommendations reviewed with your CPA.
Implementation and ongoing advice
For clients who choose ongoing management, we help carry out the diversification plan over multiple years and adjust it as markets, tax law, and your life change.
Frequently asked questions.
What counts as a concentrated stock position?
There is no official threshold, but many planners begin to look closely when a single stock represents roughly 10% or more of a household's investable assets. The relevant question is less about a percentage and more about impact: how would a sharp decline in that one company change your goals, especially if the same company also provides your income?
Who is eligible for NUA treatment?
NUA applies to employer securities held in a qualified employer plan such as a 401(k), profit-sharing plan, or ESOP. Generally, the shares must be distributed in kind as part of a lump-sum distribution, meaning the entire balance of the employer's plans of the same type is paid out within one calendar year after a qualifying event such as separation from service, reaching age 59½, or death. Plan rules and your distribution history affect eligibility, so we confirm the details with the plan administrator and your CPA.
Can I use NUA if I already rolled my 401(k) into an IRA?
Generally no. Once the employer shares are rolled into an IRA, the NUA treatment for those shares is lost. This is why the decision needs to happen before you request a rollover.
Do I have to use NUA on all of my employer shares?
No. You can generally select which shares to distribute in kind and roll the rest into an IRA. Lower-basis lots are usually the stronger candidates for NUA, while higher-basis lots are often better rolled over. The whole plan balance still needs to leave the plan within the same year, but it can go to different destinations.
Do I have to hold the shares for a year after distribution?
Not for the NUA portion. That amount is treated as long-term capital gain whenever you sell, even the next day. Any growth after the distribution date follows normal holding-period rules, so it is short-term if sold within a year and long-term after that.
How does California treat NUA?
California does not have a lower tax rate for capital gains, so gains on NUA shares are taxed at the same state rates as ordinary income. The rate advantage of NUA is therefore mainly at the federal level for California residents. Where you live when you sell can also matter, which is one reason we model the decision carefully for clients who may relocate.
Is selling the whole position at once ever the right answer?
Sometimes. When the concentration risk is severe, the tax cost is modest, or other income is unusually low in a given year, a larger sale may be the most sensible choice. Tax savings from spreading sales out can be erased by a decline in the stock while you wait, so we weigh both sides rather than assuming slower is better.
How do you work with my CPA?
Closely. We share the modeling, basis records, and distribution plan with your CPA before anything is submitted, and we coordinate again when Form 1099-R arrives. If you do not have a CPA familiar with NUA and equity compensation, we can suggest professionals for you to consider. We do not receive compensation for referrals.
Is there an asset minimum?
Standalone planning engagements covering concentrated stock and NUA analysis are available without an asset minimum. The $1 million minimum applies only to ongoing investment management. Fees are described in our Form ADV Part 2A.
Are you a fiduciary?
Yes. Index Gurus, Inc. is a fee-only registered investment adviser and acts as a fiduciary when providing advice to clients. We do not accept commissions, referral fees, or compensation from product sponsors, including exchange fund providers or brokerage firms.
Talk it through before you sell or roll over.
If you are leaving an employer, approaching retirement, or holding a position that has grown larger than you intended, schedule a complimentary 30-minute discovery call. We will review your situation and tell you honestly whether an engagement is a fit.
Index Gurus, Inc. is an investment adviser registered with the California Department of Financial Protection and Innovation. Registration does not imply a certain level of skill or training, nor does it imply endorsement by the State of California. Information on this page is general and educational and does not constitute personalized investment, tax, or legal advice, or an offer to buy or sell any security. Personalized advice is provided only after entering into a written advisory agreement.
Tax treatment of employer securities, Net Unrealized Appreciation, retirement plan distributions, and concentrated stock strategies is complex and fact-specific, and depends on individual circumstances, plan terms, and federal and state law in effect at the time, which may change. Index Gurus, Inc. does not provide tax or legal advice; consult your CPA or attorney before acting. No strategy described here can assure a particular tax result, prevent losses, or guarantee that diversification will improve returns. Strategies such as hedging, exchange funds, and charitable trusts involve costs, restrictions, and risks and are not appropriate for every investor. Illustrations are hypothetical, do not represent actual clients or investments, and are not indicative of future results. References to types of situations the firm works on are not testimonials.
All investments involve risk, including possible loss of principal. Concentrated positions in a single security carry substantial risk of loss. Past performance is not indicative of future results. Please review our Form ADV Part 2A for information on services, fees, and conflicts of interest; it is available on request and through the SEC's Investment Adviser Public Disclosure website. See our Disclosures page for full risk disclosures and privacy policy. CFP Board owns the certification marks CFP® and CERTIFIED FINANCIAL PLANNER® in the U.S.