Before you fund an account, understand which losses you can use, what you will pay, and how you will get your money back.
All account examples below are hypothetical.
A family preparing to reduce a concentrated stock position may also need capital for spending, future transfers or philanthropy. A tax-aware long/short proposal may lead with the losses the manager estimates it could realize. Before you consider that estimate, decide what the money must still be available to do.
Write down the family’s retained-capital requirement, then the role assigned to this particular account. If a payment is due in two years, the proposal should address that amount and date—or identify the other asset expected to fund it.
If the family requirement has not been established, say so plainly. This review does not calculate estate-tax exposure, lifetime spending, safe gift capacity or a recommended allocation.
A long/short account holds assets and owes liabilities. Short-sale proceeds may be restricted as collateral, while short positions and margin debits remain obligations. Reconcile those amounts before evaluating the tax estimate.
In this simplified example, $7.5 million of long stock and $2.5 million of restricted cash sit alongside a $2.5 million short liability and $2.5 million of cash debt. That leaves $5 million of net asset value.
Fixed illustration
Read assets and obligations together. Restricted cash is not an extra withdrawal allowance.
LS-X01 · independent hypothetical example
| Long stock | $7,500,000.00 |
|---|---|
| Free cash | $0.00 |
| Restricted cash | $2,500,000.00 |
| Short liability | $2,500,000.00 |
| Cash debt | $2,500,000.00 |
| Other liabilities | $0.00 |
These examples are independent illustrations. They are not successive years or stages of one investment.
The 200% gross and 100% net dollar exposure ratios use the same account as the NAV denominator. An outside concentrated holding cannot be added to the exposure calculation without its matching assets and liabilities. Neither ratio is portfolio beta, expected return, withdrawal capacity or household risk.
The account’s realized loss and the family’s tax benefit are different amounts. Follow the loss through recognition, current allowance, use this year and any ending carryforward reported after the return is completed.
IRS guidance combines short-term and long-term capital items within their categories and then brings them together on Schedule D. For an individual, net capital losses used against other income are generally limited to $3,000 a year, or $1,500 for married filing separately. That limit does not cap losses used against capital gains.
The examples below hold the eligible loss constant and change the amount used against a specified gain. Existing carryforwards, gain character and timing can change the current result.
Fixed illustration
Choose a specified-gain case. The 28% rate and $35,000 incremental period cost are fixed educational assumptions, not a tax-rate recommendation or investment forecast.
LS-X02 · independent hypothetical example
| Stipulated eligible loss | $500,000.00 |
|---|---|
| Increment used against the specified gain | $500,000.00 |
| Assumed rate | 28% |
| Incremental cost for this period | $35,000.00 |
LS-X03 · independent hypothetical example
| Stipulated eligible loss | $500,000.00 |
|---|---|
| Increment used against the specified gain | $100,000.00 |
| Assumed rate | 28% |
| Incremental cost for this period | $35,000.00 |
LS-X04 · independent hypothetical example
| Stipulated eligible loss | $500,000.00 |
|---|---|
| Increment used against the specified gain | $0.00 |
| Assumed rate | 28% |
| Incremental cost for this period | $35,000.00 |
LS-X05 · independent hypothetical example
| Baseline tax on the specified gain | $0.00 |
|---|---|
| Proposal tax on the specified gain | $0.00 |
These examples are independent illustrations. They are not successive years or stages of one investment.
The investment still has to justify its risk and cost. Beyond a management fee, a short book can involve financing spreads or interest, security-specific borrow charges, trading costs, payments in lieu of dividends, and costs to change or close positions. Tax, legal and advisory work may be billed outside the account.
For each line, record the amount or quoted rate, its base, period and payer, and whether it is already included in performance, net asset value, a financing quote or expected proceeds. Costs charged on NAV, gross exposure or a separate sleeve are not automatically comparable. Unknown cost is not zero cost.
Fixed illustration
Read the ending values before subtracting a disclosed cost again.
LS-X06 · independent hypothetical example
| Opening NAV | $5,000,000.00 |
|---|---|
| Ending NAV, net of stated costs | $5,050,000.00 |
| Supplied comparison ending NAV | $5,300,000.00 |
| Disclosed cost already included | $120,000.00 |
| Additional cost not included | $0.00 |
These examples are independent illustrations. They are not successive years or stages of one investment.
Request the actual financing and borrow quote. Confirm whether short credits or rebates are included, which borrow charges can change and who bears a buy-in. A disclosed cost already included in the result should not be subtracted again.
Account value does not establish how much cash reaches the family, or when. A partial withdrawal, lower leverage, a manager change and a full cash close are different requests. Obtain a dated case from the proposed manager and custodian using the actual agreement, holdings, borrowing terms and settlement conditions.
The case should show the account distribution, account-paid costs and tax, outside payments, family spendable cash and what remains invested. If close costs or exit tax are missing, a $5 million NAV cannot stand in for $5 million of spendable cash.
Fixed illustration
Move among fixed examples. Every debit is assigned to the account or paid outside it and counted once.
LS-X07 · independent hypothetical example
| NAV before close | $5,000,000.00 |
|---|---|
| Additional account-paid close cost | $20,000.00 |
| Additional account-paid tax | $0.00 |
| Tax paid outside the account | $280,000.00 |
| Additional fee paid outside the account | $0.00 |
LS-X08 · independent hypothetical example
| NAV before withdrawal | $5,000,000.00 |
|---|---|
| Account distribution | $1,000,000.00 |
| Account-paid cost | $10,000.00 |
| Supplied NAV after withdrawal | $3,990,000.00 |
| Tax paid outside the account | $100,000.00 |
LS-X09 · independent hypothetical example
| NAV before withdrawal | $5,000,000.00 |
|---|---|
| Account distribution | $1,000,000.00 |
| Account-paid cost | $10,000.00 |
| Supplied NAV after withdrawal | $3,890,000.00 |
| Tax paid by the account | $100,000.00 |
LS-X10 · independent hypothetical example
| NAV before close | $5,000,000.00 |
|---|---|
| Additional close cost | Not supplied |
| Exit tax cash | Not supplied |
These examples are independent illustrations. They are not successive years or stages of one investment.
Test an inconvenient date or condition as well as the expected case. This means asking what changes if gains are later, borrowing is more expensive, a position is hard to borrow, collateral requirements change or a proposed transfer cannot occur. It does not assume every account ends in a forced sale.
These checks show which assumptions drive the result and what evidence is still missing. They do not calculate a suitability score, predict losses or select a winner.
Use these questions to prepare for a conversation about the proposal. Mark the information you have and the points you still need to raise.
Tax benefit
Ask for projections with and without the proposal for the same tax period. A manager’s loss estimate does not answer that question.
Total cost
Ask for management, financing and stock-borrow costs in dollars, with any exclusions identified. Keep costs already deducted separate.
Access to cash
Ask for a dated withdrawal case showing what leaves the account, what remains invested and the release conditions.
Mark a status above to list the documents and answers you want to discuss.
Research checked 2026-10-18. Official tax sources establish general rules. Provider research describes modeled scenarios; none of these sources establishes a result, manager access or account terms for a particular family.
General realized-gain or loss and recognition framework.Basis, nonrecognition, disallowance, deferral, character and deductibility require separate provisions.
Limits an individual's net capital loss used against other income.The $3,000 or $1,500 rule does not cap capital losses used against capital gains.
Governs individual capital-loss carryover treatment.Corporate and section 1256 rules differ. A carryforward must be determined from the return.
Explains capital-loss netting, deduction limits, carryforward character, wash sales, short sales and investment-interest context.Explanatory guidance prepared for 2025 returns. Recheck for a 2026 edition and later developments before release or client use.
Supports the distinction between realized loss and currently allowable loss.Substantially identical property and taxpayer facts require review.
Addresses a taxable-account loss followed by acquisition of substantially identical property in the individual's IRA or Roth IRA.Does not resolve every household, entity or plan-account fact pattern.
Supports the warning that offsetting positions can defer loss or affect character and holding period.Straddle identification, mixed-straddle elections, section 1256 treatment, qualified covered calls, holding periods and carrying costs are fact-specific.
Explains short-sale borrowing, margin, dividend-replacement obligations and risk.Does not determine federal tax treatment or provide an account-specific cost quote.
Provides a fact-specific holding for the planned ETF transaction it describes.Does not hold that every Section 351 ETF seed is taxable or approve transactions outside its facts.
Describes specified ETF, partnership, mixed-character, foreign-currency and notional-principal-contract strategies and identifies transaction facts that require scrutiny.The notice says a tax-aware label alone is not cause for concern, but it does not create a safe harbor for ordinary-stock SMAs or resolve every transaction.
Explains house requirements, margin calls, forced-liquidation rights, short-position fees and written margin agreements.Does not provide a selected custodian's account terms or one universal maintenance percentage.
Shows publicly modeled liquidation and transition scenarios and their stated assumptions.Commercially interested hypothetical analysis. Outcomes depend on assumed alpha, external gains, reinvestment, rates, fees, market paths and exit method; it does not establish expected results.
Shows that partial withdrawals have been modeled as an alternative to immediate full liquidation.Does not establish a contractual withdrawal right, fixed-date capacity or result for a particular account.
No. A realized loss may be affected by recognition, wash-sale, straddle and other rules before it becomes currently allowable. Current use then depends on the family's gains, their character, other return items and existing losses. A remaining carryforward is a tax attribute, not cash. [LS-TAX-S01][LS-TAX-S05][LS-TAX-S06]
No. It depends on what funds the account and what the mandate owns or offsets. A separate cash-funded account may create losses without selling the concentrated stock. Measure direct and indirect issuer exposure after the proposed transactions.
No. It describes long and short exposures relative to net asset value. Short-sale proceeds can be restricted as collateral, and the short position remains an obligation. Gross exposure is not net asset value, beta, expected return or family wealth. [LS-TAX-S09][LS-ROOT-S04]
Possibly. Provider research models partial withdrawals and gradual transitions in some scenarios. Actual rights depend on the account agreement, holdings, leverage, collateral, liquidity, tax lots, manager cooperation and custodian terms. Ask for a dated account-specific case. [LS-TAX-S17][LS-TAX-S18][LS-ROOT-S04]
No. The notice describes identified patterns involving mixed-character straddles, foreign-currency elections and selective notional-principal-contract terminations, among other fund strategies. It also says a tax-aware label alone is not cause for concern. That is not a safe harbor; the actual instruments, elections and transaction sequence still require review. [LS-TAX-S24]
For an individual, an unused net capital loss may carry forward and retains short- or long-term character under the federal rules described in Publication 550. The amount must be determined from the completed return; it is not generally equal to gross realized losses minus the amount used in one selected comparison. [LS-TAX-S03][LS-TAX-S05]
Altar Rock · Advice for your family
Andrew Barnes and the Altar Rock team can review the proposal’s loss estimates, investment exposure, full costs and access to cash with you. That review needs to account for your family’s investment plan, spending needs and what you intend to pass on.
Tell us what you are considering and what you need help assessing. You choose what to share.
Altar Rock advisory team
These guides and tools are educational examples. Advice for your family requires a review of your circumstances with the appropriate investment, tax and legal advisers.
