What District of Columbia residents actually pay
District of Columbia taxes ordinary income at a top marginal rate of 10.75%. RSU settlement value, NSO exercise spread, and ESPP discount income all count as ordinary wages for this purpose and flow through the state's normal brackets.
Top bracket kicks in at $1M.
The trailing nexus problem
You move out of a high-tax state. Your RSUs keep vesting. Who gets to tax them? In most states with nonresident-income rules, the answer is: both, on a workday-allocation basis. A tranche vesting today, covering a grant made before you moved, is split between your old state and your new one in proportion to workdays.
What to tell payroll
Employer payroll systems will usually withhold for your current work state only. That's technically wrong if any portion was earned in the prior state. The correction happens at filing, via nonresident returns and a resident credit for taxes paid elsewhere.
Frequently asked
- Does District of Columbia tax RSU income the same as wages?
- Yes. District of Columbia treats RSU ordinary income as wages, taxable at the state's top marginal rate of 10.75%. Supplemental-wage federal withholding (22%, or 37% above $1M YTD) does not adjust for state withholding, so you often owe extra at filing.
- What happens if I exercise ISOs while living in District of Columbia?
- District of Columbia does not run a separate state AMT, so only federal AMT applies. You still need to model the bargain element carefully if you plan a cashless exercise-and-sell.
- I moved to District of Columbia from another state. Who taxes my vesting RSUs?
- Most high-tax states (CA, NY, MA) source RSU ordinary income to workdays between grant and vest. If your grant pre-dates your District of Columbia move, expect the old state to tax the portion of each tranche attributable to workdays earned there. District of Columbia taxes the remainder.
- Can I reduce District of Columbia taxes by timing my RSU sales?
- District of Columbia taxes long-term capital gains at the same rate as ordinary income, so timing alone does not produce a state savings — only federal. Holding for 12 months still halves the federal rate on gains above basis.
Related
- RSU taxes — District of Columbia
- ISO exercises and AMT — District of Columbia
- Capital gains tax — District of Columbia
- QSBS — District of Columbia
- RSU vesting schedules — District of Columbia
- ESPP taxation — District of Columbia
- NSO exercises and state tax — District of Columbia
- 401(k) and retirement accounts — District of Columbia
- Leaving District of Columbia: how to cleanly break residency before a liquidity event — District of Columbia
- District of Columbia equity-comp overview