Connecticut
$699
~6.99% est. state
- Total withheld
- $3,664
- Net bonus
- $6,336
- Federal + FICA
- $2,965
- Rank
- #7
California withholds $324 more state tax than Connecticut on $10,000 bonus with $80,000 year-to-date wages (flat supplemental method).
By Sammy S. · Founder · AuthorUpdated for 2026
Key finding
$324 more state tax — net gap ~$324 ($6,336 vs $6,012).
$699
~6.99% est. state
$1,023
10.23% state
Total withholding gap: $324 (state drives most of the difference).
| Topic | Connecticut | California |
|---|---|---|
| Withholding method | Aggregate / table (estimate) | CA DE 44 bonus/stock (10.23%) |
| Supplemental rate | ~6.99% est. | 10.23% |
| Vignette state tax | $699 | $1,023 |
| Vignette federal + FICA | $2,200 + $765 | $2,200 + $765 |
| Vignette total withheld | $3,664 | $3,988 |
| Vignette net | $6,336 | $6,012 |
| Rank (curated) | #7 | #4 |
$80,000 YTD wages; engine flat supplemental method. State gap is state tax only; net columns include federal and FICA.
| Bonus | Connecticut state | California state | State gap | CT net | CA net |
|---|---|---|---|---|---|
| $5,000 | $349.50 | $511.50 | $162 | $3,168 | $3,006 |
| $10,000 | $699 | $1,023 | $324 | $6,336 | $6,012 |
| $25,000 | $1,747.50 | $2,557.50 | $810 | $15,840 | $15,030 |
| $50,000 | $3,495 | $5,115 | $1,620 | $31,680 | $30,060 |
This page compares state supplemental withholding for Connecticut (CT) and California (CA) on $10,000 bonus with $80,000 year-to-date wages (flat supplemental method), calculated from our engine (same engine as the bonus calculator).
California is higher by about $324 in state tax alone; net take-home favors Connecticut by about $324.
No published flat supplemental rate (aggregate / table method). Educational estimate ≈6.99% — confirm with payroll tables.
California DE 44: 10.23% flat on bonuses and stock options (other supplemental wages use 6.6%).
Connecticut (Aggregate / table (estimate)): about 6.99% → $699 on the vignette.
California (CA DE 44 bonus/stock (10.23%)): about 10.23% → $1,023 on the vignette.
Official state agencies for this pair only are linked in the sources section — not every state in the hub.
Both states withhold $2,200 federal income tax under the Pub. 15 flat method (22% on $10,000).
FICA is $765 in each (Social Security + Medicare on this YTD/bonus 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.
The ladder recomputes engine results at $5k–$50k bonuses with $80,000 YTD wages.
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-bonus negotiations should still include regular wage tax and cost of living — not supplemental withholding alone.
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.
Before treating the withholding gap as a job or relocation decision.
Vignette net: $6,336 (CT) vs $6,012 (CA).
Flat supplemental rates differ by state; federal 22% and FICA rules are the same. Withholding is not your final tax bill when you file.
NYC/local taxes, aggregate-method withholding, and equity vest timing are not modeled. Use the bonus calculator for custom amounts and YTD wages.
Compare any two states
Supplemental bonus withholding on a $10,000 bonus with $80,000 YTD wages.