Long-Term Incentive Plans (LTIPs): Tax and Financial Planning for Executives

Long-term incentive plans — LTIPs — are the equity and equity-equivalent compensation that sits above base salary and annual cash bonuses. For most C-suite executives, LTIP grants represent the majority of total compensation. They also produce most of the tax complexity: multiple instruments with different treatments, a systematic withholding shortfall, multi-year income bunching from overlapping vesting schedules, and a concentrated position in employer stock that grows with every annual grant cycle.

This guide covers the four main LTIP instrument types, how each is taxed, and the planning decisions that arise when you hold multiple types simultaneously.

What counts as an LTIP?

"LTIP" is a broad term for performance- or time-based compensation paid in equity (or equity equivalents) over a period longer than one year. Annual LTIP grants at S&P 500 companies are typically sized as a multiple of base salary — 1–2× at VP level, up to 5–10× for C-suite officers — and delivered in one or more of these forms.

Most large-company annual grants combine two instruments — for example, 50% RSUs (retentive, predictable) and 50% PSUs (performance-contingent). Options appear as a third element at growth companies or in C-suite new-hire packages designed to align with long-term shareholder returns. NQDC deferral of LTIP proceeds is a separate planning layer covered in the NQDC strategy guide.

How each LTIP instrument is taxed

RSUs and PSUs: ordinary income at settlement

Under IRC §83(a), property transferred in connection with services is included in gross income at the time the property is no longer subject to a substantial risk of forfeiture.¹ For RSUs and PSUs, that moment is settlement — the date shares are actually delivered to the executive. The ordinary income recognized equals the fair market value of the shares on settlement date.

The withholding gap. Employers withhold at the IRS supplemental wage rate of 22% on equity settling in a year — or 37% mandatory once supplemental wages to an employee exceed $1,000,000 in the calendar year.² For most executives below that threshold, 22% is far below the actual marginal rate of 37% federal plus state. An executive with $800,000 vesting in a single tranche and a combined marginal rate of 50% (37% federal + 13.3% California) owes roughly $400,000 in tax but receives only $176,000 in withholding — leaving a $224,000 hole that must be covered by quarterly estimated payments.

FICA on RSUs. RSU and PSU settlements are subject to FICA at the time shares are delivered. Social Security applies up to the $184,500 wage base (2026);³ Medicare (1.45%) has no cap, and the 0.9% Additional Medicare Tax applies above $200,000 in wages (single filer). For most C-suite executives who have already hit the SS wage base through salary, large RSU tranches incur only Medicare exposure — but 1.45% on a $500,000 vest is still $7,250 in additional FICA not always anticipated.

PSU performance uncertainty. PSUs produce the same ordinary income mechanics as RSUs, but the settlement amount isn't known until the performance period closes. Ordinary income is recognized on actual settlement (target shares × multiplier × stock price on settlement date). A 150% payout on a target PSU grant of $1,000,000 at a higher stock price could easily settle at $2,000,000+ — which bunches income in the settlement year in a way that is difficult to estimate. Most advisors recommend building a quarterly estimated tax reserve based on target payout (100% × current stock price), then adjusting in the final quarter once the multiplier is set.

Incentive stock options (ISOs)

ISOs have favorable treatment under IRC §422: no ordinary income recognized at grant or exercise. Instead, the spread at exercise (FMV minus exercise price) is an alternative minimum tax (AMT) preference item — it increases alternative minimum taxable income (AMTI) but does not generate regular taxable income in the exercise year.⁴

If you satisfy the qualifying disposition holding rules — hold the shares more than 2 years from grant date and more than 1 year from exercise date, and are still employed within 3 months of the sale — the entire gain from exercise price to sale is taxed as long-term capital gain (20% at C-suite income levels, plus 3.8% NIIT = 23.8% combined versus 37%+ as ordinary income). That rate differential is the ISO's core economic value.

The AMT trap. Exercising ISOs triggers AMT on the spread even if no shares are sold. If the stock declines between exercise and sale, you may owe AMT on phantom income that has since disappeared. Before exercising a large ISO block, model how much spread can be recognized in the year before AMT exceeds your regular tax liability. See the ISO and AMT planning guide for the annual safe-exercise calculation.

The $100,000 annual ISO limitation. Under IRC §422(d), the aggregate fair market value of stock (measured at grant date) underlying ISOs that first become exercisable in any calendar year cannot exceed $100,000 per employee.⁴ Options beyond that limit convert automatically to NQOs. At C-suite grant sizes, most option awards exceed this cap — meaning a single large grant is typically partly ISO (up to $100K of grant-date value first exercisable in year 1, year 2, etc.) and partly NQO. The NQO portion produces ordinary income at exercise.

The 90-day post-termination window. ISOs must be exercised within 90 days of separation from service (IRC §422(a)(2)) or they convert to NQOs and — if the plan document doesn't extend the exercise period — eventually expire worthless. This deadline is a hard constraint for executives departing a company with in-the-money ISOs. See the executive departure planning guide.

Non-qualified stock options (NQOs / NSOs)

NQOs produce ordinary income at exercise: the spread (FMV at exercise minus exercise price) is included in W-2 compensation, subject to income tax withholding at the 22% supplemental rate (same withholding gap as RSUs) and FICA up to the SS wage base. There is no AMT preference item and no qualifying disposition holding period. Any further appreciation from exercise date to sale date is capital gain — long-term if the executive holds the shares more than one year after exercise.

The primary planning variable for NQOs is when to exercise. An executive with a large spread across multiple option tranches can time exercises to avoid stacking $3M+ of ordinary income in a single year. Multi-year exercise scheduling, coordinated with low-RSU-vesting years or a pre-retirement income gap, can keep income in lower brackets and reduce AMT exposure if ISOs are also in the mix. See the NSO tax planning guide.

Phantom stock and SARs

Cash-settled LTI instruments pay out as ordinary income (W-2 wages) at payout. No equity changes hands, so there is no basis, no capital gain, no Section 16 reporting obligation, and no concentrated-stock problem on the executive's balance sheet. The FICA mechanics, however, follow a special rule: under IRC §3121(v)(2), FICA is assessed at vesting, not at cash payout — meaning employment taxes are owed years before the money arrives. This can create unexpected payroll tax bills on phantom income. See the phantom stock and SARs guide.

Multi-year income bunching from overlapping grants

A structural reality of annual LTIP programs: each year's grant creates a new vesting schedule that overlaps with all prior years' grants. An executive who receives a new RSU grant annually with 4-year graded vesting has tranches from four different grants vesting simultaneously in year four. Add a PSU settlement in the same year and a large NQO exercise, and the executive can face $3–5M in ordinary income in a single year — far above what any quarterly withholding or estimated tax process naturally handles.

The years to model carefully are:

• Any year a PSU performance period closes (known at the start of year N but paid in Q1 of year N+3)
• Years with a large hire-grant cliff vest (common for C-suite appointments)
• The year of a change-of-control, which accelerates all unvested equity simultaneously
• The final year before planned retirement, when an executive may want to front-load exercises to avoid post-departure expiration clocks

Planning around income bunching typically involves:

• NQDC deferral elections — if the plan allows deferral of PSU or bonus income, a December 15 election made the prior year can shift lump income out of high-vesting years
• Charitable giving in high-income years — donor-advised fund contributions in the year of a large PSU settlement, taking the deduction when the marginal rate is highest; see the charitable giving guide
• Roth conversion in low-income gaps — using the year between a departure and large NQDC distributions to convert pre-tax IRA/401(k) balances; see the Roth conversion guide
• ISO exercise timing — exercising ISOs in moderate-income years to maximize AMT spread without triggering cash flow problems

Concentration risk from annual LTIP grants

Annual equity grants in the same employer compound concentration quietly. An executive receiving $1M in annual RSU grants for five years, plus a $2M one-time C-suite appointment grant, can accumulate $7M+ of employer stock — representing 60–80% of investable net worth in a single name — before the insider-trading constraints, blackout periods, and 10b5-1 cooling-off rules allow meaningful diversification.

At $5M+ concentration, the right diversification structure depends on position size, tax basis, trading constraints, and timeline. The five main tools — 10b5-1 sell-down plan, exchange fund, completion-portfolio direct indexing, charitable remainder trust (CRUT), or outright zero-cost collar — have meaningfully different tax and risk profiles at different scale. See the concentrated stock diversification guide for the full framework.

LTIP interaction with NQDC plans

Some NQDC plans allow executives to defer income from PSU settlements or cash-based LTI payouts — shifting ordinary income that would be recognized in a high-vesting year into a deferred account that distributes in retirement under a 409A-compliant schedule. This can be powerful when LTIP bunching pushes income deep into the 37% bracket, and the executive expects a lower marginal rate in retirement years.

The tradeoff: NQDC balances are unsecured employer obligations and are not ERISA-protected. Employer financial distress puts those balances at risk. The NQDC vs. 401(k) decision guide covers the allocation framework; the NQDC creditor risk guide covers how to assess and manage the credit exposure.

Where specialist advice creates the most value

Most financial advisors can advise on a 401(k) and a taxable brokerage account. Specialist value in LTIP planning shows up when:

• You have RSUs, PSUs, and options in simultaneous vesting schedules from multiple annual grants — and want a forward model of income, taxes, and net-worth by year
• ISOs require AMT scenario analysis before each exercise decision to determine the safe quantity
• A 10b5-1 plan for concentrated-stock diversification must be coordinated with blackout windows, Section 16 pre-clearance, and the insider trading cooling-off period rules revised by the SEC in 2022
• NQDC deferral elections must be made each December for the following year — and optimizing the deferral amount requires knowing projected LTIP income 1–5 years out
• A change-of-control event is possible, which would accelerate all equity simultaneously, trigger 280G analysis, and pay out NQDC — all in the same tax year

The interaction of these moving parts is where mistakes are most common — and where the most planning leverage exists. A specialist who has structured dozens of these situations knows the common failure modes: ISO AMT traps, NQDC election timing errors, estimated tax underpayment penalties from PSU uncertainty, and withholding gaps that compound across grants.

1. IRC §83(a) — property transferred in connection with services included in gross income when no longer subject to a substantial risk of forfeiture. law.cornell.edu/uscode/text/26/83
2. IRS Publication 15-A (2026) — supplemental wages optional flat rate 22%; mandatory 37% when supplemental wages exceed $1,000,000 in calendar year. irs.gov/publications/p15a
3. Social Security wage base $184,500 for 2026 per IRS Rev. Proc. 2025-32. irs.gov/pub/irs-drop/rp-25-32.pdf
4. IRC §422 — Incentive stock options; §422(a)(1) no income at grant or exercise; §422(d) $100,000 annual FMV limitation on options first exercisable per year; §422(a)(2) 3-month post-termination ISO window. law.cornell.edu/uscode/text/26/422
5. IRC §56(b)(3) — ISO spread is an AMT preference item; IRC §55 — alternative minimum tax computation. law.cornell.edu/uscode/text/26/56
6. 2026 long-term capital gains rates: 0% / 15% / 20% per IRS Rev. Proc. 2025-32; 3.8% NIIT under IRC §1411 above $200,000 single / $250,000 MFJ. irs.gov/pub/irs-drop/rp-25-32.pdf

Values verified for tax year 2026. TCJA rate structure made permanent by OBBBA (P.L. 119-21, July 2025). Consult a qualified advisor for your specific situation.