Typical comp shape
CTOs usually earn founder equity with 83(b), or executive rsu + psu. Common employers include Early and growth-stage startups, Public tech companies. Early-stage CTOs often hold large founder ISOs where 83(b) elections and QSBS eligibility dominate tax planning.
What Missouri changes
In Missouri, every RSU vest, NSO exercise, and ESPP purchase carries 4.8% state tax on top of federal. For a senior cto with $300k+ of equity income, the state layer routinely adds $25-45k to the annual bill.
Planning cadence
For a cto in Missouri, the three planning windows are: after each RSU vest (withholding check and sell-vs-hold), before any ISO exercise (AMT model at federal only), and in Q4 (estimated tax top-up to clear the safe harbor).