Tangent Retirement · portfolio planning tool

How fast should you unwind a concentrated stock position?

When one stock is a large share of your net worth, the question is rarely whether to diversify but how quickly, because every sale realizes gains and every year you wait leaves you exposed. This planner spreads the sales over a schedule you choose and shows the tax bill and the concentration year by year.

Your position

$
$
$
%
%
%
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to sell each year
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Concentration today
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Total tax over the plan
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Tax per dollar sold

Year by year

Start
This stock Everything else
Sell it all now
tax due this year
Spread over 3 years

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We’ll email you exactly what is on this page, including the inputs you used, so you can share it with your spouse or CPA. No sales follow-up unless you ask.

Ways to lower the bill while you diversify

Lever 1

Sell the high-basis lots first

Specific-lot identification lets you sell the shares with the smallest gain first, cutting the tax on early sales while you wait for lower-income years.

Lever 2

Give appreciated shares

Donating low-basis shares to a donor-advised fund removes the gain entirely and gives a deduction at full market value, up to 30% of income.

Lever 3

Harvest losses elsewhere

Realized losses in the rest of the portfolio offset gains dollar for dollar. Direct-indexed accounts are built to generate them.

Lever 4

Time low-income years

A sabbatical, a job change or early retirement can drop you into the 15% bracket and below the NIIT line. Larger sales belong in those years.

Want a lot-by-lot plan?

We build diversification schedules for Apple, Intuit and other tech employees that account for upcoming vests, ESPP purchases and your actual tax picture.

Talk to Tangent Retirement
For illustration only. Sells an equal fraction of the remaining gap each year, taxes the gain in proportion to the shares sold at the rates you enter, and grows both the stock and the rest of the portfolio at the assumed return, with sale proceeds reinvested in the diversified side. Ignores dividends, transaction costs, the alternative minimum tax, and changes in your bracket from year to year. Tangent Retirement Inc. is a registered investment adviser. This is not tax or investment advice.