A liquidity event is the transaction that converts privately held equity into cash or publicly tradable shares. For founders, employees holding stock options, and early investors, it is the moment years of paper wealth finally becomes spendable money. The most common forms are a merger or acquisition and an initial public offering, with tender offers, secondary sales, and direct listings filling in the gaps. What you actually receive from any of them depends on three things: the structure of the deal, where your shares sit in the company’s payment order, and how the tax code treats your particular form of equity.
The Forms a Liquidity Event Can Take
Nearly every exit falls into one of a handful of structures, and the structure dictates how fast you see cash and what strings come attached.
Mergers and Acquisitions
An acquisition is the most common exit for venture-backed companies. A larger buyer purchases the company, and shareholders receive cash, stock in the acquirer, or a mix. Cash deals pay at closing. Stock-for-stock deals hand you shares in the buyer, so your real cash outcome depends on when you sell those shares and at what price.
The acquirer typically assumes outstanding equity and options, cashing them out or converting them into equivalent awards. Unvested shares and options are usually canceled or rolled into a new vesting schedule with the buyer, and leaving before that schedule completes means forfeiting whatever has not vested.
Initial Public Offerings
An IPO lists a company’s shares on a public exchange for the first time, creating an ongoing market where shares trade freely. The company files a Form S-1 registration statement with the SEC and sells newly issued shares to public investors, primarily to raise capital for the business itself.1U.S. Securities and Exchange Commission. Form S-1 Registration Statement
The IPO itself does not hand insiders a check. Founders, executives, and employees are bound by a lock-up agreement that bars them from selling shares for a set window after the offering, typically 180 days.2Investor.gov. Initial Public Offerings: Lockup Agreements The lock-up keeps a flood of insider selling from crushing the price on day one. Your real liquidity arrives when it expires, at whatever the stock is trading for then.
Direct Listings
A direct listing takes a company public without issuing new shares or using underwriters. Existing shareholders sell their own shares directly on the exchange starting on the first day of trading. No new capital is raised through the listing itself, so this route tends to appeal to companies that already have cash and simply want to open a market for their shareholders.
The main practical difference from an IPO is that direct listings generally carry no lock-up. Insiders can sell on day one. The flip side is that early trading can be more volatile without an underwriter stabilizing the price.
Tender Offers and Secondary Sales
You do not always have to wait for an IPO or acquisition. A tender offer is a company-organized transaction, often coinciding with a new funding round, where employees can sell a portion of their vested shares back to the company or to incoming investors. Participation is voluntary, and companies commonly cap sales at 10% to 25% of a given employee’s vested holdings so they stay exposed to future upside.
A secondary sale involves finding your own private buyer, often through a platform specializing in pre-IPO stock. Most shareholder agreements include a right of first refusal that lets the company buy any shares you want to sell at the same price your outside buyer offered, typically with a 30-day decision window. Board approval is usually required and can be withheld. Secondary sales are possible but carry far more friction than selling on a public exchange.
Who Gets Paid First: The Liquidation Waterfall
In an acquisition, the sale price is not divided evenly across the cap table. A contractual payment order called the liquidation waterfall determines who gets paid first, and it heavily favors preferred shareholders.
Venture investors negotiate liquidation preferences when they put money in. A 1x non-participating preference gives the investor a choice: take back the original investment amount, or convert to common stock and take a proportional share of the total proceeds. They pick whichever is larger. A 1x participating preference is more aggressive. The investor first receives the full investment back, then also shares proportionally in what remains alongside common shareholders. That double-dip can compress what reaches founders and employees sharply, especially when the exit price is not far above what investors put in.
After preferred shareholders are satisfied, common stockholders split what is left based on ownership percentage. Your piece depends on how much of your grant has actually vested, and if you hold options rather than shares, your exercise price is subtracted from your per-share payout. In a modest exit, common shareholders can end up with little or nothing by the time the waterfall runs its course. The fine print of a company’s prior fundraising rounds is where that outcome is decided.
Executives in line for very large payouts should also be aware of the golden parachute rules. When severance, accelerated vesting, and related payments to an executive exceed three times their average annual compensation, the excess is classified as an excess parachute payment, the executive owes a 20% excise tax on it, and the company loses its deduction.3Internal Revenue Service. Golden Parachute Payments Guide This mostly bites C-suite officers, but it can take a real cut out of what looks like a generous package.
Escrow, Holdbacks, and Earn-Outs
Even after an acquisition closes, you probably will not receive your full share immediately. Buyers routinely hold back a portion of the price as insurance against post-closing problems.
An escrow places a slice of the purchase price with a neutral third party. The standard range is 10% to 15% of total deal value, held for 12 to 24 months. If the buyer later finds the seller misrepresented something, or if undisclosed liabilities surface, the buyer claims against the escrow instead of suing. Whatever is left when the period expires goes out to sellers, sometimes in stages starting around six months after closing.
An earn-out ties part of the purchase price to the company hitting post-closing performance targets, usually across one to three years and keyed to metrics like revenue, EBITDA, or customer retention. If the business falls short, those payments shrink or disappear. If a meaningful chunk of your deal value is structured as an earn-out, treat it as uncertain income until the targets are actually met.
How the Tax Code Treats Your Equity
Taxes are the most complex and most frequently underestimated part of a liquidity event. The type of equity you hold, how long you have held it, and when you exercise your options can produce wildly different outcomes on the same underlying payout. A few wrong moves can cost six or seven figures.
Incentive Stock Options (ISOs)
ISOs offer the best potential tax treatment of any equity compensation, but only if you follow the rules precisely. No ordinary income tax is owed when you exercise. To qualify for long-term capital gains treatment on the sale, you must hold the shares at least one year after exercise and at least two years after the original grant date.4Office of the Law Revision Counsel. 26 USC 422 – Incentive Stock Options Selling before either deadline is a disqualifying disposition, and the spread between exercise price and sale price becomes ordinary income instead.
The hidden danger with ISOs is the Alternative Minimum Tax. The spread between your exercise price and the stock’s fair market value at exercise counts as income for AMT purposes, even though it is not taxed as regular income. If the spread is large enough, you can owe a substantial AMT bill in the year you exercise, before you have sold anything. For 2026, the AMT exemption is $90,100 for single filers and $140,200 for married couples filing jointly.5Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026 This is where startup employees routinely get blindsided: they exercise, owe five or six figures in AMT, and cannot sell the stock to pay it because the company is still private.
Non-Qualified Stock Options (NSOs)
NSOs are more flexible since they can be granted to anyone, including consultants and board members, but the tax treatment is worse. The spread between fair market value and exercise price is taxed as ordinary income the moment you exercise, whether you sell or not.6Internal Revenue Service. Topic No. 409, Capital Gains and Losses For employees, the company withholds income and payroll taxes on the spread, often by automatically selling enough shares to cover it. Any further appreciation after exercise is a capital gain, long-term if you hold the shares more than a year, short-term otherwise.
Restricted Stock Units (RSUs)
RSUs are a promise to deliver shares once they vest. No purchase is involved. When RSUs vest and shares are delivered, the full fair market value on the delivery date is taxed as ordinary income, and the company typically withholds taxes by holding back shares. If there is a gap between vest and delivery, the taxable amount is based on the price at delivery, not vesting. Your cost basis in the delivered shares is that same fair market value, and any later gain is a capital gain once you sell.
Restricted Stock and the 83(b) Election
If you receive actual restricted stock rather than RSUs, you can file a Section 83(b) election with the IRS. The election lets you pay ordinary income tax on the stock’s value at grant rather than at each vesting date.7Office of the Law Revision Counsel. 26 USC 83 – Property Transferred in Connection With Performance of Services If the stock is barely worth anything at grant, as is common at early-stage startups, the tax bill is minimal, and all future appreciation becomes capital gain instead of ordinary income.
The deadline is strict: 30 days from receiving the stock.8Internal Revenue Service. Section 83(b) Election Form Miss it by a day and the election is permanently gone for that grant. The risk is also real. If you file, pay the tax, and then leave before vesting, you forfeit the unvested shares and get no refund of the tax already paid. For early employees at startups with very low share prices the math usually favors filing; for later-stage grants already worth real money, the calculus gets harder.
What the Gain Actually Costs
2026 Long-Term Capital Gains Rates
The single biggest factor in your tax bill is whether the gain is long-term or short-term. Long-term rates apply to assets held more than one year and are significantly lower than ordinary income rates.6Internal Revenue Service. Topic No. 409, Capital Gains and Losses For 2026, the federal long-term capital gains brackets are:9Internal Revenue Service. Revenue Procedure 2025-32
- 0% on taxable income up to $49,450 (single), $98,900 (married filing jointly), or $66,200 (head of household).
- 15% from $49,451 to $545,500 (single), $98,901 to $613,700 (married filing jointly), or $66,201 to $579,600 (head of household).
- 20% above $545,500 (single), $613,700 (married filing jointly), or $579,600 (head of household).
Most people going through a significant liquidity event will land in the 20% bracket on at least part of the gain. State income taxes stack on top, from 0% in no-tax states to over 13% in the highest.
The 3.8% Net Investment Income Tax
Capital gains from a liquidity event are also subject to a 3.8% surtax, the Net Investment Income Tax, once modified adjusted gross income clears certain thresholds. For 2026 those thresholds are $200,000 for single filers, $250,000 for married couples filing jointly, and $125,000 for married filing separately.10Office of the Law Revision Counsel. 26 USC 1411 – Imposition of Tax They have never been adjusted for inflation and have not changed since the tax was created in 2013. The NIIT applies to the lesser of net investment income or the amount by which modified AGI exceeds the threshold.11Internal Revenue Service. Topic No. 559, Net Investment Income Tax Anyone realizing a meaningful gain will clear these thresholds, and once you add the 20% long-term rate and state tax, the effective rate on a large gain can easily reach 30% or more.
Qualified Small Business Stock (Section 1202)
Section 1202 offers one of the largest benefits in the code: up to 100% exclusion of federal capital gains tax on qualifying stock held more than five years.12Office of the Law Revision Counsel. 26 USC 1202 – Partial Exclusion for Gain From Certain Small Business Stock The 2025 One Big Beautiful Bill Act expanded the benefit for stock issued after July 4, 2025.
To qualify, the stock must be in a domestic C corporation that had no more than $75 million in gross assets when the stock was issued, up from $50 million for stock issued before July 5, 2025. The corporation must use at least 80% of its assets in an active trade or business, with certain industries like finance, law, and hospitality excluded. You must have acquired the stock at original issuance, not through a secondary purchase.
For stock issued after July 4, 2025, the exclusion is tiered by holding period:
- Three to four years: 50% of the gain excluded, with the remainder taxed at 28% rather than the usual long-term rate.
- Four to five years: 75% excluded, with the remainder also taxed at 28%.
- More than five years: 100% excluded.
The maximum excludable gain per issuer is $15 million for stock issued after July 4, 2025, up from $10 million under prior law, with these caps indexed for inflation beginning in 2027. For founders and early investors at qualifying companies, QSBS is one of the single most valuable provisions in the tax code, and the interaction between QSBS eligibility and the structure of the eventual exit is worth planning around years in advance.