RSU Tax Calculator Mississippi 2026
Estimate tax on RSU vesting in Mississippi. See gross income, tax withheld, sell-to-cover shares, net shares received, and after-tax value.
Used for Social Security wage base, Medicare threshold, and tax bracket impact.
Flat 22% supplemental wage withholding
6.2% on vest value
1.45% on all wages
MS supplemental withholding
RSU vesting tax in Mississippi
RSUs (restricted stock units) are taxed as ordinary income when they vest. The fair market value (FMV) on the vest date is added to your W-2 wages. Employers typically withhold at the supplemental rate: 22% federal (37% above $1M), plus Mississippi state supplemental withholding and FICA (6.2% Social Security up to the wage base, 1.45% Medicare). This calculator uses your state (Mississippi) to estimate total withholding and how many shares are sold to cover tax.
Mississippi state tax on RSUs
Mississippi has state income tax, so RSU vesting in Mississippi is subject to state withholding in addition to federal and FICA. High-tax states like Mississippi, California, and New York withhold 10%+ on supplemental wages. Your take-home from RSU vesting in Mississippi is lower than in no-tax states (Texas, Florida, Washington, etc.). The calculator above includes Mississippi state supplemental rate.
Sell-to-cover and net shares in Mississippi
With sell-to-cover, your employer sells some vesting shares to pay the tax and delivers the rest to your brokerage. Shares sold = Tax withheld ÷ FMV per share. The calculator shows how many shares you keep after federal, Mississippi state, and FICA withholding. For full vesting schedules, use our Equity Vesting Calculator; when a tranche vests, use this tool for that vest event.