Colorado
$440
~4.4% PIT state
- Total withheld
- $3,405
- Net bonus
- $6,595
- Federal + FICA
- $2,965
- Rank
- #29
Utah withholds $5 more state tax than Colorado on $10,000 bonus with $80,000 year-to-date wages (flat supplemental method).
By Sammy S. · Founder · AuthorUpdated for 2026
Key finding
$5 more state tax — net gap ~$5 ($6,595 vs $6,590).
$440
~4.4% PIT state
$445
~4.45% PIT state
Total withholding gap: $5 (state drives most of the difference).
| Topic | Colorado | Utah |
|---|---|---|
| Withholding method | Flat PIT proxy (no separate table) | Flat PIT proxy (no separate table) |
| Supplemental rate | ~4.4% PIT | ~4.45% PIT |
| Vignette state tax | $440 | $445 |
| Vignette federal + FICA | $2,200 + $765 | $2,200 + $765 |
| Vignette total withheld | $3,405 | $3,410 |
| Vignette net | $6,595 | $6,590 |
| Rank (curated) | #29 | #28 |
$80,000 YTD wages; engine flat supplemental method. State gap is state tax only; net columns include federal and FICA.
| Bonus | Colorado state | Utah state | State gap | CO net | UT net |
|---|---|---|---|---|---|
| $5,000 | $220 | $222.50 | $2.50 | $3,297.50 | $3,295 |
| $10,000 | $440 | $445 | $5 | $6,595 | $6,590 |
| $25,000 | $1,100 | $1,112.50 | $12.50 | $16,487.50 | $16,475 |
| $50,000 | $2,200 | $2,225 | $25 | $32,975 | $32,950 |
This page compares state supplemental withholding for Colorado (CO) and Utah (UT) on $10,000 bonus with $80,000 year-to-date wages (flat supplemental method), calculated from our engine (same engine as the bonus calculator).
Utah is higher by about $5 in state tax alone; net take-home favors Colorado by about $5.
No separate supplemental table; educational estimate uses the state’s flat PIT ≈4.4%.
No separate supplemental table; educational estimate uses the state’s flat PIT ≈4.45%.
Colorado (Flat PIT proxy (no separate table)): about 4.4% → $440 on the vignette.
Utah (Flat PIT proxy (no separate table)): about 4.45% → $445 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.
When both sides use flat (or flat-PIT proxy) rates, the dollar gap scales roughly with bonus size.
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: $6,595 (CO) vs $6,590 (UT).
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.