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What to know about exercising options before an IPO

Exercising before IPO can trigger tax before you have liquidity — plan cash, AMT, and 83(b) carefully.

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In plain terms

Exercising before an IPO can create a tax bill before you can sell anything. exercises generate ; exercises can create . With no public market yet, you may owe tax on paper gains while holding illiquid shares, so cash planning and timing matter.

How the tax works

Exercising converts options into shares, which is a taxable event for and a potential event for .

Before an IPO there is usually no easy way to sell shares to raise cash for the tax.

Valuations come from 409A appraisals, which can change and affect the spread.

For some early-stage grants, early exercise plus an can change when income is recognized, but that is deadline-driven.

What to check on your end

  • Whether your options are or .
  • The current 409A valuation vs. your strike price.
  • Whether early exercise and an are available to you.
  • Your cash on hand for tax with no liquidity.
  • Lockups or transfer restrictions that delay selling after IPO.

Common mistake

Exercising a large block right before an IPO without a cash plan. You can owe tax ( or ) on paper gains while the shares are still illiquid, and the price can fall before you can sell.

Example scenario (hypothetical)

Illustration only, not your tax situation.

Example: Avery exercises options at a low strike when the 409A value is much higher, expecting an IPO. The spread creates a tax bill that year, but a lockup delays selling. Avery needs cash to cover the tax before any shares can be sold.

When a CPA is worth it

  • You are considering a large pre-IPO exercise.
  • or a large ordinary-income spread is in play.
  • You may qualify for early exercise with 83(b).
  • The IPO timing or lockup is uncertain.

Sources and notes

Primary tax claims on this page are supported by the official and secondary sources below. Broker and software links describe reporting mechanics — confirm rules against IRS or state guidance.

ISO and NSO exercise timing, AMT on ISO spread, and disposition reporting.

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VestingTax.com is not a CPA firm or tax preparer. Grants, employers, and states all differ. Use the cited IRS and state sources above, your own documents, and a qualified tax professional before you make decisions from this guide.

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