Capital Gains Tax Calculator
Apply user-entered federal tax-rate scenarios to a nonnegative stock or crypto gain.
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Primary result | Risk note | Next action
Model compounding, fees, portfolio choices, college savings, and long-term wealth-building tradeoffs.
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Cards show what the calculator decides, the inputs it needs, and where the result should lead next.
Calculator library
Apply user-entered federal tax-rate scenarios to a nonnegative stock or crypto gain.
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Primary result | Risk note | Next action
Project portfolio growth from starting balance, contributions, return assumptions, fees, inflation, and taxes.
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Future value | Growth earned | Contribution total
Stress-test how long a retirement portfolio may last under withdrawals, inflation, expected returns, a first-year market shock, and a cash-bucket buffer.
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Starting withdrawal rate | stress withdrawal rate | cash bucket gap
Estimate monthly retirement income, after-tax spendable cash, portfolio reliance, fixed-income coverage, and the gap versus target spending.
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After-tax income | monthly gap | fixed-income coverage
Turn Social Security, pension, portfolio withdrawals, healthcare costs, tax withholding, and cash reserves into a monthly retirement paycheck plan.
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Spendable paycheck | withdrawal rate | cash bucket gap
Project a fixed monthly-compounding return scenario with end-of-month contributions and clear exclusions.
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Future value | Growth earned | Contribution total
Compare simplified federal tax components for qualifying and disqualifying Section 423 ESPP sales.
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Winning option | Dollar difference | Break-even point
Screen how entered investment losses may offset gains, ordinary income, and future years.
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Winning option | Dollar difference | Break-even point
Compare two entered annual-fee scenarios while holding gross return and contributions constant.
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Future value | Growth earned | Contribution total
Calculate current net worth and separate five-year and target-age projections using consistent effective monthly growth assumptions.
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Required monthly amount | Projected gap | Target date
Convert nominal return into real return after inflation, fees, and taxes.
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Primary result | Risk note | Next action
Find the trades needed to bring a portfolio back to target allocation.
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Primary result | Risk note | Next action
Translate time horizon, drawdown comfort, and liquidity needs into a sample risk allocation.
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Primary result | Risk note | Next action
Compare simplified education-funding scenarios using entered returns, tax assumptions, flexibility, and capped student-loan principal.
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Winning option | Dollar difference | Break-even point
Model private-fund capital calls and size a cash reserve using a user-selected share of estimated uncalled capital.
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Winning option | Dollar difference | Break-even point
Compare locked-up and liquid investment scenarios at user-entered returns without treating the modeled difference as an earned premium.
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Required monthly amount | Projected gap | Target date
Calculate the level monthly payout a fixed period-certain annuity would pay from a lump-sum principal, interest rate, and payout period.
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Required monthly amount | Projected gap | Target date
Estimate simple cumulative tax drag for interest-bearing assets in a taxable-account scenario; the model does not value future withdrawal taxes or account constraints.
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Required monthly amount | Projected gap | Target date
Estimate tax-effect scenarios for a direct appreciated-stock gift without determining deductibility.
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Required monthly amount | Projected gap | Target date
Model a fixed-term charitable remainder trust payout and simplified present-value remainder using a Section 7520 rate entered.
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Required monthly amount | Projected gap | Target date
Estimate an enrollment-date four-year cost and monthly savings scenario.
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Future value | Growth earned | Contribution total
Estimate a pro-rata gain and tax scenario for selling an entered share of a concentrated position.
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Required monthly amount | Projected gap | Target date
Estimate dividend income at an entered yield and tax-rate scenario without assuming every distribution is qualified.
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Required monthly amount | Projected gap | Target date
Compare investing a lump sum all at once against spreading the same total amount evenly across several months — the real math behind why lump sum tends to win.
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Winning option | Dollar difference | Break-even point
Compare federal deduction scenarios for annual giving versus donor-advised-fund bunching using current assumptions you enter.
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Required monthly amount | Projected gap | Target date
Weigh the total cost of a degree, including foregone income while in school, against its lifetime salary premium to see how many years it takes to break even.
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Required monthly amount | Projected gap | Target date
Estimate a flat-rate federal estate-tax and liquidity scenario from user-entered assumptions.
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Required monthly amount | Projected gap | Target date
Compare two entered annual taxable-distribution scenarios while holding gross return constant.
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Winning option | Dollar difference | Break-even point
Compare simplified after-tax growth scenarios for deferring compensation versus taking and investing it now.
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Required monthly amount | Projected gap | Target date
Calculate the future value of a lump sum and recurring contributions.
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Future value | Growth earned | Contribution total
Model a simplified zeroed-out GRAT annuity and remainder scenario using entered growth and Section 7520 rates.
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Required monthly amount | Projected gap | Target date
Project a user-supplied annual healthcare budget across retirement as a nominal cost scenario using an assumed growth rate.
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Required monthly amount | Projected gap | Target date
Calculate two simple household balance-sheet ratios from entered assets and liabilities.
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Primary result | Risk note | Next action
Compare an ILIT premium with an entered annual-exclusion capacity scenario.
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Required monthly amount | Projected gap | Target date
Explore a transparent age-and-risk allocation rule as an educational starting point.
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Required monthly amount | Projected gap | Target date
Estimate ISO exercise cash and a simplified AMT reserve from positive spread and a user-entered tax-rate assumption.
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Required monthly amount | Projected gap | Target date
Combine entered federal, NIIT, and state rate scenarios for a liquidity-event gain.
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Primary result | Risk note | Next action
Estimate a single-position margin-call price using entered initial equity and broker maintenance-margin assumptions.
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Primary result | Risk note | Next action
Estimate tax-equivalent yield using entered tax assumptions for the taxable comparator.
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Primary result | Risk note | Next action
Estimate a nonnegative NSO spread, entered-rate tax reserve, and cash requirement.
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Required monthly amount | Projected gap | Target date
Compare a pension guaranteed monthly annuity against taking the lump sum and generating your own income from it at an assumed investment return.
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Winning option | Dollar difference | Break-even point
Apply two entered rates to favorable and ordinary portfolio-income buckets.
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Primary result | Risk note | Next action
Compare highly simplified entered-rate tax scenarios for exercising equity now versus waiting.
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Required monthly amount | Projected gap | Target date
Discount a future amount back to today using a required return or inflation rate.
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Future value | Growth earned | Contribution total
Model a user-selected private-credit allocation cap and compare entered gross yields with a public-credit scenario.
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Required monthly amount | Projected gap | Target date
Screen gain using acquisition-date, holding-period, basis, and rate assumptions under current Section 1202 tiers.
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Required monthly amount | Projected gap | Target date
Solve for the annual rate of return a lump sum needs to earn to grow from today's value to a target value by a future date.
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Required monthly amount | Projected gap | Target date
Apply a deterministic planning score to withdrawal rate, stock allocation, and retirement horizon without claiming a simulation or success probability.
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Primary result | Risk note | Next action
Apply a safe withdrawal rate like the classic 4% rule to a portfolio to see the annual income it can sustainably support, and the portfolio size needed for a target income.
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Required monthly amount | Projected gap | Target date
Compare two simplified retirement return-order scenarios with identical period averages and fixed withdrawals.
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Primary result | Risk note | Next action
Compare simplified after-tax taxable and tax-deferred annual-contribution scenarios, including final taxable-gain tax.
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Winning option | Dollar difference | Break-even point
Illustrate the future value of the signed premium difference between entered term and whole-life scenarios.
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Winning option | Dollar difference | Break-even point