2026 tax year · California
RSU tax in California
A $60,000 vest costs $5,580 in California tax on top of the federal bill. And the federal share withheld is $2,970 short.
What a $60,000 vest actually costs in California
A single filer already earning $180,000 in salary. The vest stacks on top of that, so it fills the highest brackets rather than starting at the bottom:
| Withheld by your employer at 22.0% | $13,200 |
| Federal tax the vest actually costs | $16,170 |
| Federal shortfall, owed in April | $2,970 |
| California income tax on the vest | $5,580 |
| Total still to find | $8,550 |
The withholding rate is flat, 22.0% below $1 million of supplemental pay. And takes no account of your salary. That is why the gap grows the more you earn.
The gap widens with salary
| Salary | Withheld | Actually owed | Shortfall | California tax |
|---|---|---|---|---|
| $90,000 | $13,200 | $13,764 | $564 | $5,580 |
| $160,000 | $13,200 | $14,570 | $1,370 | $5,580 |
| $260,000 | $13,200 | $20,630 | $7,430 | $5,580 |
How California treats a vest
California taxes a vest as ordinary income like any other wages, adding $5,580 on top of the federal bill for $60,000 of vesting stock.
California is one of the states that sources equity income aggressively. If any part of the vesting period was worked here, California will claim its share of the vest even if you had moved away by the time the shares actually landed. Days worked in each state / total days in vesting period x RSU income = each state's allocation
California specifics that change the number
On the 2026 rate itself: CA SDI applies to SE income. 9 income tax brackets. Highest top rate in US.
California runs a state disability insurance program: 0.9%. CA SDI applies to self-employed who voluntarily elect coverage. Mandatory for W-2 employees.
California is a community property state. In community property states, income earned during marriage is generally owned equally by both spouses. This affects QJV eligibility, MFS filing strategies, and retirement account contribution rules.
What the same vest costs around California
Total income of $240,000 in the states California borders:
| State | Its tax | vs California |
|---|---|---|
| Nevada | No income tax | −$18,575 |
| Arizona | $6,000 | −$12,575 |
| Oregon | $19,708 | +$1,133 |
- Nevada has no income tax at all, so the same work done there costs $18,575 less in state tax than it does in California.
- Arizona would take $12,575 less, $6,000 against California's $18,575.
- Oregon would take $1,133 more, $19,708 against California's $18,575.
RSU questions in California
Should I sell at vest?
Selling immediately raises the cash for the $8,550 you still owe and leaves no capital gain, because the sale price equals the price you were already taxed on. Holding turns it into an investment decision, any further gain is a capital gain, and any fall is a loss you take on shares you were already taxed on at the higher value.
I moved to California mid-vest, who taxes it?
Both states, split by workdays. The income is allocated across the vesting period, not assigned to wherever you happened to live on the vesting date. The state you left can still claim its share, and California, New York and Massachusetts pursue it hardest.