By |Published On: Aug 30, 2026|Categories: Alternative Minimum Tax, Financial Planning|

If you hold OpenAI equity, you already know the particular frustration of watching a number get very large on a statement you can’t spend. You can’t pay your student loans with a valuation. You certainly can’t retire a mortgage with a paper gain. So when OpenAI closed a $7 billion OpenAI employee secondary sale on August 10, 2026, a lot of people finally got to convert some of that extraordinary paper wealth into something that actually exists in a bank account. However, this round came with a detail that matters more than the headline: it priced at $852 billion, exactly matching the company’s March 2026 funding round. Every prior OpenAI secondary sale had priced higher than the last. This one didn’t.

That flat valuation changes the math on waiting. If you’ve been telling yourself you’ll sell in the next tender when it’s worth more, August just handed you something concrete to reckon with. This article breaks down what actually happened in August, how it fits alongside the two tenders that came before it, how the proceeds are taxed (it depends on what you hold, and the 2026 rules are less forgiving than 2025’s), and what’s worth thinking through before the next window opens.

What an OpenAI Employee Secondary Sale Actually Is

Most people understand the concept broadly. Nevertheless, the mechanics are worth understanding clearly, especially if you haven’t been through one.

A secondary sale, also called a tender offer, is a company-organized window in which current and former employees can sell some of their vested shares at a price the company sets. You don’t negotiate. You don’t source your own buyer. Instead, you receive a window of time to decide whether to participate and how many shares to tender, and the company (or investors it lines up) purchases those shares at the set price, typically up to a per-employee cap.

For a company like OpenAI, these windows address a real and practical problem. Equity that’s worth $852 billion on paper is worth exactly zero to an employee who needs to pay rent this month. Employees who joined early and watched their equity multiply on paper have had very limited mechanisms to realize any of it before a public listing. A tender offer changes that in a meaningful way.

Why OpenAI Keeps Running These Liquidity Rounds

There’s also a competitive reality driving these rounds. Anthropic, Google DeepMind, xAI, and Meta are all actively recruiting from the same talent pool, and a secondary window is a significant retention tool. When OpenAI runs a liquidity event, it’s simultaneously letting employees convert real work into real money and making it considerably harder for a competitor to lure them away with an offer that includes immediate liquidity.

The August 2026 round added a notable structural dimension. Rather than bringing in outside investors to fund the $7 billion buyback, OpenAI used its own cash. That decision signals a balance sheet strong enough to absorb the largest employee liquidity event in company history without diluting existing shareholders at all. This is a meaningful departure from prior rounds, where external investors participated in the capital.

A Timeline of All Three Liquidity Events

OpenAI has now run three employee liquidity events. Understanding the full sequence matters because the August round doesn’t tell the complete story in isolation.

The 2024 tender raised $1.5 billion and established the model. It was comparatively modest in scale, but it proved the process and set expectations that additional rounds would follow.

The October 2025 tender raised $6.6 billion at roughly a $500 billion implied valuation, with more than 600 current and former employees participating. Individual payouts were capped at $30 million, and approximately 75 people hit that ceiling. Notably, only about two-thirds of the authorized $10.3 billion was ultimately sold, meaning a significant share of eligible employees chose to hold rather than tender.

The August 2026 OpenAI employee secondary sale raised $7 billion, funded entirely by the company itself, and priced flat at $852 billion against the March 2026 funding round. The pattern of step-ups from round to round broke here for the first time. As we track in our OpenAI IPO Timeline and Valuation Tracker, the original September 2026 IPO target has reportedly slipped toward 2027, and the flat tender pricing lines up with that trajectory.

How OpenAI Employee Secondary Sale Proceeds Are Taxed

This is the part most people underestimate, and where the surprises tend to land. The tax bill from an OpenAI secondary sale depends heavily on what you actually hold, and the 2026 rules are meaningfully different from 2025’s.

Tax Treatment Depends on What You Hold

OpenAI employees typically hold more than one type of equity instrument, and each carries different tax consequences when sold in an OpenAI tender offer.

Vested shares and profit participation units (PPUs) held for more than one year generally qualify for long-term capital gains treatment. Federal rates on long-term gains top out around 20%, plus the 3.8% Net Investment Income Tax. That’s considerably more favorable than ordinary income rates, which can reach 37% federally.

Unexercised options sold in a tender offer work differently. In that case, the spread between your strike price and the tender price is taxable as ordinary income at rates up to 37%. As a result, two employees who tender the exact same dollar amount can end up with very different after-tax proceeds, purely because of what they held going into the window.

Before the next window opens, it’s worth knowing exactly which bucket your shares fall into. A few hours reviewing your equity grant agreements with a financial advisor is an investment that pays for itself.

Withholding Is a Starting Point, Not Your Final Tax Bill

OpenAI withholds at a flat 22% federal rate on supplemental income up to $1 million in a calendar year, then at 37% above that threshold. However, that’s your withholding, not your actual tax liability. If your effective marginal rate exceeds the withholding rate, you’ll owe the difference when you file. Don’t treat the net proceeds you receive as the amount you ultimately keep.

For California residents, the state adds 10.23% supplemental withholding on top of the federal rate. Combined federal and state marginal rates can reach 52% to 54% in California, which we cover in detail in our OpenAI IPO California Taxes guide. The math stings, but planning in advance makes it manageable.

How the 2026 AMT Changes Make This OpenAI Secondary Sale More Expensive

The 2026 alternative minimum tax exemption phaseout changed in ways that directly affect anyone who also exercised ISOs during the same calendar year as the August tender.

The phaseout now starts at $500,000 of alternative minimum taxable income for single filers ($1 million for joint filers). In 2025, those thresholds were approximately $626,000 and $1.25 million, respectively. The phaseout rate doubled, from 25 cents to 50 cents per dollar. Consequently, the exemption disappears twice as fast once you’re above the new threshold.

This matters concretely if you exercised ISOs and participated in the August window during the same tax year. Your AMT exposure is significantly higher than it would have been for October 2025 participants. The IRS Instructions for Form 6251 cover the calculation mechanics, but this is exactly the kind of scenario where guessing is genuinely expensive.

Should You Participate in the Next OpenAI Employee Secondary Sale?

There’s no universal answer. Anyone who offers one without knowing your complete financial picture is working from guesswork, probably a very confident-sounding newsletter. However, the August tender gives you something concrete to work with that the October 2025 round didn’t: a real data point on how OpenAI prices these windows when the IPO isn’t imminent.

The Flat Pricing Removes One Key Assumption

Before August, it was reasonable to assume that patience would be rewarded with a higher tender price. After August, that assumption is gone. The $852 billion print matched the March 2026 funding round exactly, with no premium for waiting.

That doesn’t mean future rounds will price lower. It does mean that “wait for a better price” is now a bet on something OpenAI’s most recent window didn’t deliver. Factor that into your timeline accordingly before the next one opens.

Consider How Concentrated Your OpenAI Equity Position Actually Is

For many employees with meaningful tenure, OpenAI equity represents the overwhelming majority of their net worth. A secondary window is one of the only mechanisms available to reduce that concentration before an eventual IPO and lockup period extend the exposure further.

Concentration risk is asymmetric in a way that’s easy to underestimate. The upside of a concentrated position caps at whatever the IPO and post-lockup market delivers. The downside has no floor. Our Concentrated Stock Position Strategies guide covers how to think through this more systematically, including frameworks for deciding how much to hold and how much to trim.

Even a partial reduction of 20% to 30% of your position can meaningfully change your financial risk profile without requiring you to abandon the remaining upside.

Know What You’d Actually Be Selling in an OpenAI Tender Offer

As covered above, PPUs held over a year and unexercised options carry very different tax consequences when sold in a tender. Modeling both before you decide how much to tender is basic planning, not optional. A CERTIFIED FINANCIAL PLANNER® and CPA working together can run that analysis and help you arrive at a number that makes sense across your whole financial picture, not just your OpenAI equity in isolation.

The CFP Board’s Find a CFP® Professional tool can help you locate someone with the right background for this kind of decision.

Partial Participation Is a Legitimate Strategy

The October 2025 round capped payouts at $30 million per employee, and roughly a third of the authorized capital went unsold. Not every eligible employee sells the maximum. There’s no obligation to maximize your allocation. A partial sale that meaningfully reduces concentration while preserving upside on the remainder is often the most sensible path, particularly when IPO timing remains uncertain.

For a closer look at what to look for in an advisor who has navigated actual tender decisions, our How to Choose an OpenAI Equity Advisor guide covers the relevant questions to ask.

What an IPO Delay to 2027 Means for Your OpenAI Equity

Each of OpenAI’s three liquidity events exists, in part, because the IPO keeps moving. The August round is the clearest evidence yet that OpenAI has built a systematic alternative to waiting: self-funded buybacks, run on its own schedule, large enough to make a real difference for participants.

If the IPO lands in 2027 rather than 2026, the practical picture for employees probably doesn’t shift dramatically. Additional OpenAI secondary sales remain the most realistic path to partial liquidity in the interim. The August round’s self-funded structure suggests the company has both the means and the willingness to keep running them.

What’s worth watching is what the next tender’s pricing tells you. A step-up above $852 billion signals that the board and existing investors believe the company is worth more than the March 2026 funding round implied. A flat print again suggests the IPO pricing floor is settling around that level. A step-down would carry a different message worth paying close attention to.

None of those outcomes change the tax mechanics above. However, each tells you something meaningful about how to weigh the next window when it opens.

For the most current picture of where the IPO timeline stands, our OpenAI IPO Timeline and Valuation Tracker is updated as events develop.

Frequently Asked Questions

What is an OpenAI employee secondary sale?

An OpenAI employee secondary sale, also called a tender offer, is a company-organized window in which current and former employees can sell some of their vested shares at a company-set price, without waiting for a public market to exist. OpenAI has run three of these: $1.5 billion in 2024, $6.6 billion in October 2025 at roughly a $500 billion valuation, and $7 billion in August 2026 at $852 billion. The most recent round was funded entirely with OpenAI’s own cash and priced flat against the company’s most recent funding round.

What tax rate applies to tender proceeds?

Tax treatment depends on what you hold. Vested shares and PPUs held longer than one year generally qualify for long-term capital gains rates, with federal rates topping out around 20% plus the 3.8% Net Investment Income Tax. Unexercised options sold in a tender are taxed as ordinary income at rates up to 37%. The 2026 AMT exemption phaseout is more aggressive than 2025’s, which makes the calculation significantly more expensive for anyone who exercised ISOs during the same calendar year as the August tender.

Will OpenAI run another secondary sale before the IPO?

No schedule has been confirmed. However, the pattern of three increasingly large tenders across three years, with the most recent one entirely self-funded, suggests OpenAI intends to continue offering periodic liquidity windows while the IPO timeline develops. Whether a future OpenAI tender offer prices above, at, or below the August 2026 mark of $852 billion is the open question to watch closely.

Should I participate in the next OpenAI employee secondary sale?

The right answer depends on your full financial picture: how concentrated your position is, what you hold (shares versus options), your marginal tax rate, and your view of the IPO timeline. The flat pricing in August removed the assumption that waiting automatically produces a better price. Working with an advisor who has navigated actual tender decisions, not just RSU vesting in the abstract, is worth the time before the next window opens.

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This article is for informational purposes only and does not constitute tax or investment advice. Every employee’s equity situation is unique. Please consult a qualified CPA and a CERTIFIED FINANCIAL PLANNER® professional before making any decisions regarding your equity compensation.

Fortrove Partners is a fee-only financial advisory firm that works with tech employees navigating equity and liquidity events. If you’re an OpenAI employee with questions about your specific situation, let’s talk.