Golden Parachute and Severance Tax Planning for Departing Executives

A generous number on paper can shrink fast

Change-in-control severance arrangements — often called golden parachutes — are designed to provide executives with financial security if a merger, acquisition, or other change in control results in their termination. What many executives do not fully appreciate until it matters is that a severance package structured without attention to Internal Revenue Code Sections 280G and 4999 can trigger a substantial excise tax that meaningfully reduces the package's real value, on top of ordinary income tax.

How the excess parachute payment rules work, in plain terms

Section 280G defines a "disqualified individual" (generally officers, highly compensated individuals, and significant shareholders of the company) and establishes a "base amount" — roughly, the individual's average annual taxable compensation over the five years before the change in control. If the total present value of change-in-control-contingent payments to that individual equals or exceeds three times the base amount, the payments are considered "parachute payments," and everything above one times the base amount becomes an "excess parachute payment."

The consequences compound: under Section 4999, the executive owes a 20% excise tax on the excess parachute payment, on top of ordinary income tax. Separately, under Section 280G, the company loses its ability to deduct the excess parachute payment as a business expense — meaning both the executive and the company bear a cost from crossing the three-times threshold, which is exactly why companies frequently negotiate around this trigger deliberately rather than treating it as an afterthought.

Common structural responses

• Best-net cutback provisions. Many executive agreements include a clause that automatically reduces payments to just below the three-times threshold if doing so leaves the executive better off after tax than receiving the full amount and paying the excise tax — an explicit, formula-driven comparison built into the agreement rather than a discretionary choice made after the fact.
• Gross-up provisions. Older agreements sometimes included a gross-up clause requiring the company to pay the executive an additional amount to fully offset the excise tax. These have become considerably less common in newer agreements amid shareholder and proxy-advisor pressure, but executives with legacy agreements should confirm whether one still applies to them.
• Shareholder approval exemption. Private companies (not publicly traded) can, under specific conditions, obtain shareholder approval of parachute payments in a way that exempts them from the excess parachute payment rules entirely — a mechanism generally not available to public-company executives.
• Spreading or restructuring payment timing. Because the base-amount and three-times calculations are specific and mechanical, restructuring the mix and timing of severance, equity acceleration, and benefits continuation before a change-in-control event is finalized can sometimes keep total payments under the trigger threshold without reducing the executive's overall economic benefit meaningfully — though this requires careful calculation well in advance, not after the fact.

Equity acceleration is often the hidden driver

Executives frequently focus on cash severance when thinking about parachute exposure, but accelerated vesting of equity awards upon a change in control — a common and often automatic provision in equity plans — counts toward the parachute payment calculation at its present value, and is frequently the single largest component pushing total payments over the three-times threshold. An executive with substantial unvested equity approaching a potential change-in-control event should model the accelerated-vesting value explicitly as part of any parachute calculation, not just cash severance and continued benefits.

A simplified illustration of the mechanics

Consider an executive with an average annual taxable compensation of $600,000 over the five years preceding a change in control — establishing a base amount of $600,000 for this purpose. The three-times threshold is $1.8 million; any change-in-control-contingent payments totaling $1.8 million or more trigger the parachute rules, and the "excess" subject to the 20% excise tax is everything above one times the base amount, or $600,000. If cash severance, accelerated equity vesting, and continued benefits together total $2.3 million in present value, the excess parachute payment is $1.7 million ($2.3 million minus the $600,000 base amount), generating a 20% excise tax of $340,000 — on top of ordinary income tax on the full amount, and on top of the company's lost deduction for that same excess portion. This is precisely the kind of number a best-net cutback provision is designed to compare against a reduced, sub-threshold payment before the severance event actually occurs, so the executive receives whichever outcome nets out higher after tax rather than defaulting to the larger gross figure.

Timing of the calculation matters as much as the calculation itself

The base-amount calculation looks backward at five years of historical compensation, which means an executive's own recent compensation trajectory — a large one-time bonus, a major equity grant, or conversely a lower-earning year — can meaningfully shift the base amount and therefore the three-times threshold, in ways that are largely outside the executive's control by the time a change in control is actually being negotiated. This is precisely why running the 280G calculation early, using current compensation history rather than waiting until a transaction is imminent, gives both the executive and the company's counsel meaningful lead time to structure the severance package intentionally rather than discovering the exposure only after terms have already been negotiated.

The takeaway

A severance package's headline value and its after-tax value can differ substantially once the Section 280G/4999 excess parachute payment rules are applied, and accelerated equity vesting — not just cash severance — is often the largest contributor to crossing the three-times-base-amount threshold. Review your specific agreement's cutback, gross-up, or absence of either provision well before a change-in-control scenario becomes real, since the most effective planning happens in the agreement's drafting and structuring, not after a deal is announced.