If you’ve recently retired and moved to a new state, it’s completely understandable to feel uneasy about “where the tax bill will land” when stock options are exercised or RSUs vest. Equity compensation can be one of the most valuable parts of your financial picture—and one of the most confusing at tax time.
Below is a practical framework to help you understand how state taxation often works after a move. (Because rules vary widely, it’s also a great topic to review with a CPA who regularly handles multi-state equity compensation.)
1) Two states may have a claim—old state and new state
Many people assume the state where you live on the vest/exercise date is the only state that can tax the income. In reality, a former state of employment may also tax some (or sometimes all) of the income if it is considered “sourced” to work performed in that state.
In plain English: if the equity was earned while you were working in State A, State A may seek to tax the portion tied to those workdays—even if you’re now retired and living in State B.
2) RSUs: often taxed based on where you worked during the “earning” period
With RSUs, states commonly look at the period from grant to vest (or the employer’s defined earning period) and allocate income based on where you performed services during that time.
Example: You received RSUs while working in California, then retired to Arizona before they vested. California may tax a portion (or sometimes a significant portion) based on the work performed there during the vesting period. Arizona may also tax the income because you’re a resident when the RSUs vest—but you may be eligible for a credit for taxes paid to another state, depending on the states involved.
3) Stock options: state sourcing often depends on the type and timing
Nonqualified stock options (NSOs) and incentive stock options (ISOs) can have different tax treatments, and states may also differ in how they source the income.
A common approach is to allocate option income based on where you worked during the period the option was earned (often from grant to exercise, or grant to vest/exercise depending on plan details and state rules).
Key point: Even though the taxable event might occur later—after you’ve moved—some states may still view part of the income as connected to the earlier employment.
4) Watch for withholding surprises
Employers sometimes withhold based on your current residence, but that doesn’t automatically settle what another state may claim. It’s worth reviewing:
- Your final paystub/withholding information
- Equity plan statements (grant dates, vesting dates, exercise dates)
- Your work location history during the earning period
5) What you can do now to reduce stress later
A few steps can make tax time smoother:
- Gather documentation: grants, vesting schedules, exercises, and your move date.
- Map your timeline: where you lived/worked during the earning period.
- Coordinate early: have your CPA review expected vesting/exercise events before year-end.
- Align your cash plan: state tax bills can be larger than expected when two states are involved.
If you’d like, we can walk through your equity timeline together and outline the questions to bring to your tax professional—so you feel clearer and more in control before the next vesting or exercise date arrives.