Concentrated Stock Tax Exposure Calculator

Five inputs. A live estimate of what a sale would cost in federal tax, the 3.8% surtax, and state tax, and what that capital could become if the tax never had to be paid.

Featuring the Wealthstone Protocol
Your Position

Estimated tax on this sale

Embedded gain (full position)–
Gain recognized on this sale–
Federal long-term capital gains tax–
Net investment income tax (3.8%)–
State tax–
Total estimated tax–
Effective tax rate on recognized gain–
Net proceeds after tax–

The Wealthstone Protocol

Tax exposure potentially eliminated

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Followed fully and under the right facts, the Wealthstone Protocol could potentially eliminate this exposure entirely, and keep the capital compounding for the next generation.

See the 20-year impact ↓

Assumptions: 2026 federal long-term capital gains brackets (0% to $49,450 single / $98,900 joint; 15% to $545,500 single / $613,700 joint; 20% above), with the gain stacked on top of the taxable income you enter. NIIT of 3.8% applies to gain above a MAGI of $200,000 single / $250,000 joint, using income plus recognized gain as a MAGI proxy. All shares assumed held more than one year with pro-rata basis. Ignores AMT, basis adjustments, wash sales, itemized deduction effects, and state bracket structures (state applied as the flat rate you set). Educational estimate only, not tax advice.

The Wealthstone Protocol · Our Signature Framework

What if the tax never had to be paid?

The estimate above assumes a conventional sale. Followed fully and under the right facts, the Wealthstone Protocol could potentially eliminate this capital gains tax exposure entirely.

The Protocol sequences established planning strategies, each of which defers, offsets, or removes gain recognition. Which apply, and in what order, depends on your position, your intent, and your time horizon.

  • Charitable gifts of appreciated shares and charitable remainder trusts
  • Exchange funds that diversify without a sale
  • Qualified opportunity zone reinvestment
  • Long-short tax-aware strategies that harvest losses to offset realized gains
  • Holding-period, lot-selection, and basis step-up planning

The dollar figure at right is not only this year's savings. Capital that is not surrendered to tax stays invested, and compounding does the rest. That is the generational case for planning before selling.

See if the Protocol fits your position → Review the 4-Stage Methodology

If that tax were eliminated and invested instead

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Hypothetical value of – after 20 years at 8%, compounded annually

MilestoneYear 5Year 10Year 15Year 20
Hypothetical value––––

Important disclosures: Elimination of capital gains tax is not typical and is never guaranteed. Each strategy above carries eligibility requirements, holding periods, costs, and material trade-offs, and several involve giving up liquidity, control, or investment discretion. Charitable strategies transfer assets irrevocably. The 8% rate is a hypothetical illustration, not a forecast or an indication of any Wealthstone portfolio's performance; actual returns will vary and may be negative, and taxes deferred may still be due later at unknown rates. Figures update from the calculator above and exclude fees and inflation. This is educational only and is not tax, legal, or investment advice.

How to Read These Numbers

The estimate is the starting point, not the plan

01

The total is negotiable over time

The single-year figure assumes every lever is left unused. Realization schedules, loss harvesting, charitable gifts of appreciated shares, and residency timing each move the effective rate. The Wealthstone Protocol below shows how far those levers can reach.

02

Brackets are edges worth respecting

Gain stacked above the 15% threshold is taxed at 20%, and gain above the MAGI thresholds picks up the 3.8% surtax. A schedule that keeps more of each year's realization below those edges is one of the simplest levers in a written plan.

03

Your facts will differ

Lot-level basis, AMT history, equity compensation, state changes, and charitable intent all alter the answer. This tool holds those constant by design. A written plan does not.

Bring these numbers to a real plan.

A private consultation turns this estimate into a lot-level, multi-year strategy you keep.