RSU Taxes in California: A Practical Guide for Employees

Restricted Stock Units (RSUs) are one of the most common forms of compensation for employees at tech companies and growing firms. While they can be a powerful wealth-building tool, they also introduce tax complexity that often surprises employees when vesting occurs.

Fischer Investment Strategies works with clients nationwide to help them understand how equity compensation fits into their broader financial picture, including retirement and long-term tax planning strategies.

What Are RSUs and How Do They Work?

Restricted Stock Units (RSUs) are a form of equity compensation where your employer promises to deliver company shares after certain conditions are met, typically continued employment over a vesting schedule.

• You are granted RSUs
• They vest over time (commonly 3–4 years)
• Once vested, they become actual shares you own

The key point to remember is that RSUs are not taxed when granted—they are taxed when they vest.

How RSUs Are Taxed at Vesting

When RSUs vest, the fair market value of the shares is treated as ordinary income and reported on your W-2.

Typically, employers will withhold:

• Federal income tax
• State income tax (where applicable)
• Payroll taxes such as Social Security and Medicare

However, withholding does not always perfectly match your actual tax liability, especially when large vesting events occur.

Because RSUs increase your taxable income, they can affect your overall financial plan and tax exposure for the year.

If you want to better understand how compensation fits into long-term planning, you may find our retirement planning services helpful.

Why RSUs Can Increase Your Tax Burden

RSU vesting can significantly increase your income in a given year, even if your base salary stays the same.

This can lead to:

• Temporary increases in your marginal tax bracket
• Unexpected tax balances due at filing
• Reduced eligibility for certain tax benefits

Because RSUs are tied to market value at vesting, timing also plays a role in your tax exposure and financial planning decisions.

What Happens When You Sell RSU Shares

After vesting, you own the shares outright. From there, taxation depends on when you sell them.

1. At vesting: taxed as ordinary income based on fair market value
2. At sale: taxed as capital gains or losses depending on price movement

For example:

• Vested at $100 → taxed as income at $100
• Sold at $120 → $20 capital gain
• Sold at $90 → $10 capital loss

Holding too much company stock can also create concentration risk, which should be evaluated as part of your overall portfolio strategy.

You can learn more about how we help clients structure portfolios through our risk management approach.

Common RSU Planning Mistakes

• Assuming employer withholding covers all taxes
• Not preparing for large vesting years
• Holding excessive company stock after vesting
• Failing to integrate RSUs into long-term planning

These issues often arise when RSUs are treated in isolation rather than as part of a full financial strategy.

How RSUs Fit Into a Broader Financial Plan

RSUs should always be evaluated alongside your broader financial picture, including taxes, retirement goals, and cash flow needs.

Key questions include:

• Should you sell or hold vested RSUs?
• How do RSUs impact your retirement timeline?
• Are you overexposed to employer stock?
• How should RSUs be integrated into your tax strategy?

At Fischer Investment Strategies, we take a holistic approach that considers all aspects of your financial life, including tax planning strategies and long-term investment decisions.

In some cases, RSUs also intersect with broader compensation and retirement structures such as retirement plans and employer benefits.

Key Takeaways on RSU Taxes

• RSUs are taxed at vesting, not at grant
• They are treated as ordinary income
• Tax withholding may not fully cover liability
• Planning ahead helps avoid surprises and concentration risk

With proper financial planning, RSUs can be an effective component of your long-term wealth strategy rather than a source of uncertainty.

Speak With a Fiduciary Advisor

If you’d like help understanding how RSUs fit into your financial plan, Fischer Investment Strategies offers a complimentary consultation with a fee-only fiduciary advisor.

Schedule a consultation to review your equity compensation, tax impact, and long-term planning strategy.