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 South Dakota changes
South Dakota has no wage income tax, which is structurally favorable for ctos with meaningful RSU comp. The savings vs a CA-resident colleague can be $30-60k per year at senior IC levels. That math is why Austin and Seattle are the two top relocation destinations for Bay Area tech workers.
Planning cadence
For a cto in South Dakota, 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). A move-out question — if you're considering leaving South Dakota for a high-tax state, time it around vesting.