Typical comp shape
Director of products usually earn large rsu + psu grants. Common employers include Airbnb, Salesforce, Atlassian. Director-level PSU vests often include relative TSR metrics that produce zero or 2x payouts, complicating forecasting.
What California changes
In California, every RSU vest, NSO exercise, and ESPP purchase carries 13.3% state tax on top of federal. For a senior director of product with $300k+ of equity income, the state layer routinely adds $25-45k to the annual bill.
State AMT for ISO holders
If your director of product role grants ISOs (common at pre-IPO startups, uncommon at post-IPO mega-caps), be aware that California runs its own AMT calculation. An ISO exercise-and-hold here generates AMT at two layers, not one.
Planning cadence
For a director of product in California, the three planning windows are: after each RSU vest (withholding check and sell-vs-hold), before any ISO exercise (AMT model at both federal and state), and in Q4 (estimated tax top-up to clear the safe harbor).