RSU Tax on a $250k Vest in Florida

A $250k RSU vest taxed in Florida comes to an estimated $91,825 in combined federal, state, and payroll tax under 2026 assumptions, against $60,974 typically withheld at vest, leaving reserve gap of about $30,851 to set aside. Figures are computed with RSUPlanningDesk's calculator using Florida's 0% published top marginal state income-tax rate (source: state and IRS references below), not a live tax return.

This estimate isolates the $250k vest from the rest of the year: it adds the vest's ordinary income on top of $200,000 in other taxable income, applies the 2026 federal brackets incrementally, and adds Florida's top marginal rate as the state and local component. Employers commonly withhold RSU vests using the IRS supplemental-wage rate (22% federally up to the $1,000,000 year-to-date supplemental threshold, 37% above it) rather than the employee's actual marginal rate, which is why the withheld amount and the estimated tax owed rarely match exactly. In Florida, at this income level, withholding on a $250k vest tends to run behind the estimated liability, leaving a gap that is usually paid at filing or through estimated payments.

Assumptions used in this estimate

• Single filer, $200,000 in other taxable income before this vest (2026 federal brackets).
• Federal supplemental withholding at the standard 22% rate up to $1,000,000 in supplemental wages this year, 37% above that.
• State and local marginal and withholding rates both modeled at the state's published top marginal individual income-tax rate.
• Payroll (Social Security and Medicare, including Additional Medicare where it applies) withheld and taxed under 2026 thresholds.

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