Typical comp shape
Fullstack engineers usually earn isos or rsu. Common employers include Notion, Linear, Ramp. Fullstack hires at Series B-D startups typically hold ISOs where early exercise plus 83(b) unlocks QSBS eligibility.
What District of Columbia changes
In District of Columbia, every RSU vest, NSO exercise, and ESPP purchase carries 10.75% state tax on top of federal. For a senior fullstack engineer with $300k+ of equity income, the state layer routinely adds $25-45k to the annual bill.
Planning cadence
For a fullstack engineer in District of Columbia, 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).