With markets showing strong momentum this fall, many tech professionals and startup employees in Silicon Valley are feeling renewed optimism. For some, that means long-awaited IPOs are finally on the horizon. For others, stock options and restricted stock units (RSUs) that once felt out of reach are suddenly worth a lot more.
But as opportunity grows, so does complexity. A rising market can lead to sudden wealth — and equally sudden tax consequences. That’s where financial planning becomes essential.
Why Equity Compensation Creates Unique Planning Challenges
Equity compensation is one of the best ways to participate in your company’s success. It can also create complicated tax situations that catch people off guard. When an IPO happens or when company shares increase in value, the tax bill that follows isn’t always easy to anticipate.
Here’s a common scenario:
An employee exercises incentive stock options (ISOs) before an IPO, planning to hold them long-term for favorable tax treatment. The company goes public, the shares appreciate significantly, and the employee’s taxable income — at least on paper — skyrockets. Yet the stock may still be restricted or illiquid. The result? A big tax liability, but no available cash to pay it.
That’s where understanding the Alternative Minimum Tax, or AMT, becomes so important.
What Is the Alternative Minimum Tax?
The AMT is a parallel tax system designed to ensure that high-income earners pay at least a minimum amount of tax, even if they qualify for many deductions or credits. For employees with incentive stock options, the AMT can become relevant the year they exercise those options.
Here’s the simplified version:
When you exercise ISOs, the difference between the exercise price and the fair market value of the stock (the “spread”) is considered income for AMT purposes — even if you haven’t sold the shares yet. That means you could owe taxes on paper gains that you haven’t actually received in cash.
A financial plan that models AMT exposure ahead of time can help you decide when and how to exercise stock options, whether to sell some shares to cover the tax bill, and how to time those moves across tax years.
Common Questions About Taxes and Equity Compensation
Q: Why do people owe more tax than they expected after an IPO?
A: When your company goes public, the value of your equity increases, which can trigger taxable income from stock options or RSUs. Standard withholdings on RSUs — typically 22% or 37% for higher earners — often fall short of what’s actually owed. Without proactive planning, that shortfall can result in a large balance due at tax time.
Q: What happens if my equity isn’t liquid, but I owe taxes?
A: This is one of the biggest challenges for employees during and after an IPO. If shares are restricted or you choose to hold them for long-term gains, you may face a tax bill before you have the cash to pay it. A coordinated plan can help you anticipate those costs, set aside funds, or evaluate partial sales when possible.
Q: How can working with an advisor help?
A: A financial advisor can help you understand how your equity fits into your bigger picture — your income, cash flow, investments and goals. Working with both an advisor and a CPA allows you to model different scenarios, understand potential AMT exposure, and plan for liquidity before taxes come due.
Why This Matters Now
When markets are strong, optimism runs high — and that’s when planning often gets overlooked. But bull markets eventually level off, and the decisions made during periods of growth can have lasting effects on your financial life.
Building a plan before an IPO, before exercising options, or before your next vesting event can help you:
- Estimate potential tax liabilities
- Evaluate how much cash to set aside for taxes
- Align your investment and diversification strategy with your long-term goals
These are not one-time conversations. As your company evolves and markets change, your plan should, too.
The Bottom Line
Equity compensation can be life-changing — but it also adds layers of complexity that deserve thoughtful attention. A tax-optimized financial plan helps you navigate those transitions with foresight instead of surprise.
If your company’s future looks bright, now is the time to prepare. At Johanson & Yau, we can help you understand how your equity fits into your broader financial plan — and working with professionals who understand both taxes and investments — can make the difference between reacting to opportunity and being ready for it. Contact us to learn more.