RSU Value Calculator

How it is calculated

Gross value is the number of vesting shares times the share price: gross = shares × price. Tax is a flat percentage of that gross value: tax = gross × rate ÷ 100, where the rate is entered as a percent (37 means 37%). The after-tax value is net = gross − tax. The tool applies one rate to the whole grant, so it does not model brackets, separate social-insurance rates or state taxes; use a blended rate that reflects your own withholding or marginal rate, which differs by country and income. Shares and price cannot be negative, the tax rate must be between 0 and 100 (a rate above 100 gives no result), and all three fields must be filled in. The price is the market price you expect on the vesting date, and amounts are in dollars.

Common mistakes

• Typing the tax rate as a fraction (0.37) instead of a percent (37). The result then shows almost no tax.
• Using the grant-date price rather than the price on the vesting date. Taxable value is based on the price when the shares vest.
• Using only the income-tax bracket and forgetting other withholding on the same income. A single rate is applied, so pick one that covers everything withheld.
• Entering the total grant size instead of only the shares vesting in this batch.
• Reading the after-tax figure as cash in hand. It is the value of the shares you keep, and it moves with the stock price until you sell.