RSU Tax Calculator
For Regeneron, GlobalFoundries, IBM, and other equity-comp employees in NY. Estimate vest tax — and the under-withholding trap most companies create.
Gross Vest Value
$80,000
Federal
$17,600
NY State
$5,480
FICA
$6,120
Net Cash After Withholding
$50,800
⚠ Under-Withholding Gap
$8,000
Most employers withhold federal at the supplemental rate (22%). If your marginal bracket is 32%+, you may owe this amount at tax time. Consider an estimated payment.
Educational tool only — not tax advice. Actual tax depends on total income, deductions, AMT, state of residence at vest, and other factors. NY State supplemental withholding rate shown is an approximation. Consult a CPA or fiduciary advisor.
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