RSU Vest Value Calculator

About the RSU Vest Value Calculator

Restricted Stock Units (RSUs) are a popular form of equity compensation that grant employees shares of stock upon vesting. Unlike stock options, RSUs have inherent value as long as the stock price is above zero, making them a more predictable form of compensation.

When RSUs vest, the full value is treated as ordinary income and subject to tax withholding. Most companies withhold taxes by selling a portion of the vesting shares (sell-to-cover), leaving the employee with fewer shares than the original grant.

This calculator determines the gross value of your RSUs at vesting, estimates the tax withholding, and computes the net value you actually receive. This is invaluable for financial planning, tax preparation, and understanding the true value of RSU-heavy compensation packages common in the technology industry.

When This Page Helps

RSU grants look impressive on paper, but taxes take a significant bite at vesting. This calculator shows you exactly how many shares or dollars you'll keep after withholding, so you can plan your finances and tax strategy accordingly.

How to Use the Inputs

1. Enter the number of RSU shares vesting.
2. Enter the stock price at the vesting date (or current price for projections).
3. Enter your combined federal, state, and FICA tax rate for supplemental income.
4. Review the gross value, estimated tax, and net value after withholding.
5. Use the results to plan tax payments or estimate remaining share count after sell-to-cover.

Example Calculation

Tips & Best Practices

• Supplemental income tax withholding is often 22% federal + state + FICA, totaling 35–45%.
• If your actual tax bracket is higher than the flat supplemental rate, you may owe additional tax at filing.
• Consider selling additional shares at vest to cover any shortfall in withholding.
• RSU value is taxed as ordinary income regardless of whether you sell or hold the shares.
• Plan for quarterly estimated payments if your withholding is insufficient.
• Track your cost basis — it's the stock price at vest, not zero.

RSU Compensation: What You Actually Receive

RSUs are straightforward in concept — you receive shares at vesting — but the tax implications significantly reduce the net benefit. Understanding the math behind RSU taxation helps you plan effectively and avoid surprises at tax time.

Sell-to-Cover vs. Cash Payment

Most companies use sell-to-cover withholding, but some allow you to pay taxes out of pocket and keep all shares. Consider whether the additional concentration in your employer's stock is worth the cash outlay. Diversification is generally recommended.

Long-Term RSU Planning

For employees with recurring RSU grants, create a vesting schedule that shows expected gross and net values for each upcoming vest date. This helps with cash flow planning, estimated tax payments, and overall financial planning.

Frequently Asked Questions

• How are RSUs taxed?

  RSUs are taxed as ordinary income at vesting. The gross value (shares × price at vest) is added to your W-2 income. Federal, state, and FICA taxes are withheld, typically through sell-to-cover where a portion of shares are sold to pay taxes.

• What is sell-to-cover?

  Sell-to-cover is a common withholding method where the company sells enough of your vesting shares to cover the estimated tax obligation. You receive the remaining shares. This avoids out-of-pocket cash for tax payments.

• What is the cost basis for RSU shares?

  Your cost basis is the stock price on the vest date. If you sell the shares later at a higher price, the gain above the vest price is taxed as capital gains (short-term or long-term depending on holding period).

• Do RSUs have value if the stock price drops?

  Yes. Unlike stock options that can be underwater, RSUs always have value as long as the stock trades above $0. However, the value at vesting may be less than originally projected if the stock price declines.

• Should I sell RSUs immediately at vest?

  Many financial advisors recommend selling at vest to avoid concentration risk. Holding is essentially a decision to invest in your company's stock. If you wouldn't buy the stock at its current price, you probably shouldn't hold it.

• How do I estimate my combined tax rate?

  Add your federal marginal rate (22–37%), state income tax rate, and FICA (7.65% up to the Social Security wage base, 1.45% above). For high earners, the total often falls between 35–50%.