California
$5,115
10.23% state
- Total withheld
- $18,979
- Net RSU
- $31,021
- Federal + FICA
- $13,864
- Rank
- #4
Compare different states
2026
2026California vs Hawaii RSU Tax
Hawaii withholds $385 more state tax than California on $50,000 RSU vest (100 shares × $500 FMV) with $150,000 other annual income (flat supplemental method).
By Sammy S. · Founder · AuthorUpdated for 2026
Key finding
Hawaii withholds more state tax
$385 more state tax — net gap ~$385 ($31,021 vs $30,636).
Side-by-side RSU withholding scoreboard
Hawaii
$5,500
~11% est. state
- Total withheld
- $19,364
- Net RSU
- $30,636
- Federal + FICA
- $13,864
- Rank
- #2
Total withholding gap: $385 (state drives most of the difference).
Key takeaways — California vs Hawaii RSU tax
- Hawaii withholds about $385 more state tax ($5,115 vs $5,500).
- California: 10.23% (CA DE 44 RSU/stock (10.23%)). Hawaii: ~11% est. (Aggregate / table (estimate)).
- Federal withholding is $11,000 in both states on this vignette (22% flat per IRS Pub. 15); FICA is $2,864 each.
- California ranks #4; Hawaii ranks #2 (#1 = highest state withholding).
- Model custom RSU vests at /rsu-tax-calculator.
Rule contrast — California vs Hawaii
| Topic | California | Hawaii |
|---|---|---|
| Withholding method | CA DE 44 RSU/stock (10.23%) | Aggregate / table (estimate) |
| Supplemental rate | 10.23% | ~11% est. |
| Vignette state tax | $5,115 | $5,500 |
| Vignette federal + FICA | $11,000 + $2,864 | $11,000 + $2,864 |
| Vignette total withheld | $18,979 | $19,364 |
| Vignette net | $31,021 | $30,636 |
| Rank (curated) | #4 | #2 |
State withholding and net at different RSU sizes
$150,000 other annual income; engine flat supplemental method. State gap is state tax only; net is after-tax share value after sell-to-cover.
| RSU | California state | Hawaii state | State gap | CA net | HI net |
|---|---|---|---|---|---|
| $15,000 | $1,534.50 | $1,650 | $115.50 | $9,018 | $8,902.50 |
| $50,000 | $5,115 | $5,500 | $385 | $31,021 | $30,636 |
| $100,000 | $10,230 | $11,000 | $770 | $63,731 | $62,961 |
| $250,000 | $25,575 | $27,500 | $1,925 | $161,861 | $159,936 |
How to read this page
California vs Hawaii RSU tax in 2026
This page compares state supplemental withholding for California (CA) and Hawaii (HI) on $50,000 RSU vest (100 shares × $500 FMV) with $150,000 other annual income (flat supplemental method), calculated from our engine (same engine as the RSU vest calculator).
Hawaii is higher by about $385 in state tax alone; net take-home favors California by about $385.
California DE 44: 10.23% flat on bonuses and stock options / RSUs (other supplemental wages use 6.6%).
No published flat supplemental rate (aggregate / table method). Educational estimate ≈11% — confirm with payroll tables.
How each state’s rate works
California (CA DE 44 RSU/stock (10.23%)): about 10.23% → $5,115 on the vignette.
Hawaii (Aggregate / table (estimate)): about 11% → $5,500 on the vignette.
Official state agencies for this pair only are linked in the sources section — not every state in the hub.
Federal and FICA are the same on this vignette
Both states withhold $11,000 federal income tax under the Pub. 15 flat method (22% on $50,000).
FICA is $2,864 in each (Social Security + Medicare on this YTD/RSU pair). The take-home gap is almost entirely state supplemental withholding.
Above $1M supplemental wages with one employer, federal withholding uses 37% on the excess — still the same rule in both states.
Same RSU vests, different state tax
The ladder recomputes engine results at $15k–$250k RSU vests with $150,000 other annual income.
If either state uses Vermont’s 30%-of-federal rule, Wisconsin bands, or an aggregate proxy, the gap may not scale as a simple constant percentage — check each ladder row.
Signing-RSU negotiations should still include regular wage tax and cost of living — not supplemental withholding alone.
What this comparison excludes
Local city taxes (NYC, Philly wage tax, Ohio municipalities) are not included.
Aggregate-method stubs can differ from the flat-percentage estimates shown here.
Final Form 1040 liability depends on annual brackets, deductions, and credits — withholding is a prepayment.
Who this California vs Hawaii comparison helps
Useful if…
- •Candidates weighing California vs Hawaii offers with cash RSU vests
- •Payroll comparing multi-state supplemental setup
- •Editors quantifying high-tax vs no-tax state gaps
Use official tools if…
- •Local city taxes (NYC, Philly, Ohio municipalities)
- •Aggregate-method stubs that differ from flat rates
- •Year-end true-up if federal 22% under-withholds
California vs Hawaii checklist
Before treating the withholding gap as a job or relocation decision.
- 1Confirm California and Hawaii supplemental rules with each revenue department.
- 2Ask which withholding method payroll uses (flat vs aggregate).
- 3Check the RSU vest ladder for your award size.
- 4Open /rsu-tax-by-state/california and /rsu-tax-by-state/hawaii for full profiles.
- 5Run both scenarios in /rsu-tax-calculator.
Vignette net: $31,021 (CA) vs $30,636 (HI).
What the state gap means
Flat supplemental rates differ by state; federal 22% and FICA rules are the same. Withholding is not your final tax bill when you file.
Limits of this comparison
NYC/local taxes, aggregate-method withholding, and equity vest timing are not modeled. Use the RSU calculator for custom vest amounts and other income.
California vs Hawaii RSU tax FAQs
Hawaii withholds about $385 more in state tax ($5,115 vs $5,500).
No on this vignette — both use the flat 22% federal supplemental method plus the same FICA rules. The gap is almost entirely state supplemental withholding.
California: 10.23%. Hawaii: ~11% est..
California, by about $385.
No. This comparison is state supplemental withholding plus federal and FICA only.
Not on this vignette. Both use 22% flat federal supplemental withholding ($11,000) plus the same FICA rules.
Compare another pair
Compare any two states
Supplemental RSU withholding on a $50,000 vest (100×$500) with $150,000 other income.
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