Advanced Micro Devices vesting in California
Advanced Micro Devices runs a quarterly RSU vesting schedule. For California residents, each vest is a taxable event: federal supplemental withholding at 22% up to $1M YTD and 37% above, plus 13.3% state withholding at the top California bracket, plus Medicare, plus Social Security up to the annual wage base.
The withholding gap
A senior Advanced Micro Devices engineer earning $300k base plus $400k RSU in California sits at a combined marginal rate near 48.3%. Federal supplemental withholds only 22% on the RSU portion. The gap shows up at April filing unless you cover it with quarterly estimates or W-4 additional withholding.
California-specific planning moves
California runs its own state AMT, which matters if Advanced Micro Devices also grants you ISOs. Cross-check federal and state AMT liability before any large exercise.
Moving in or out
If you plan to move during an active $Advanced Micro Devices vesting schedule, trailing-nexus rules apply. California will generally source the portion of each tranche earned while you were a resident, via workday allocation between grant and vest. Document your move date, work location per pay period, and any remote-work arrangements.