Typical comp shape
Frontend engineers usually earn rsu, isos at pre-ipo. Common employers include Vercel, Shopify, Airbnb, Figma. Frontend hires at design-forward pre-IPO companies often receive ISOs where AMT exposure drives the exercise timing question.
What South Dakota changes
South Dakota has no wage income tax, which is structurally favorable for frontend engineers 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 frontend engineer 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.