Colorado
$2,200
~4.4% PIT state
- Total withheld
- $16,064
- Net RSU
- $33,936
- Federal + FICA
- $13,864
- Rank
- #29
Compare different states
2026
2026Colorado vs Utah RSU Tax
Utah withholds $25 more state tax than Colorado 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
Utah withholds more state tax
$25 more state tax — net gap ~$25 ($33,936 vs $33,911).
Side-by-side RSU withholding scoreboard
Utah
$2,225
~4.45% PIT state
- Total withheld
- $16,089
- Net RSU
- $33,911
- Federal + FICA
- $13,864
- Rank
- #28
Total withholding gap: $25 (state drives most of the difference).
Key takeaways — Colorado vs Utah RSU tax
- Utah withholds about $25 more state tax ($2,200 vs $2,225).
- Colorado: ~4.4% PIT (Flat PIT proxy (no separate table)). Utah: ~4.45% PIT (Flat PIT proxy (no separate table)).
- Federal withholding is $11,000 in both states on this vignette (22% flat per IRS Pub. 15); FICA is $2,864 each.
- Colorado ranks #29; Utah ranks #28 (#1 = highest state withholding).
- Model custom RSU vests at /rsu-tax-calculator.
Rule contrast — Colorado vs Utah
| 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 | $2,200 | $2,225 |
| Vignette federal + FICA | $11,000 + $2,864 | $11,000 + $2,864 |
| Vignette total withheld | $16,064 | $16,089 |
| Vignette net | $33,936 | $33,911 |
| Rank (curated) | #29 | #28 |
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 | Colorado state | Utah state | State gap | CO net | UT net |
|---|---|---|---|---|---|
| $15,000 | $660 | $667.50 | $7.50 | $9,892.50 | $9,885 |
| $50,000 | $2,200 | $2,225 | $25 | $33,936 | $33,911 |
| $100,000 | $4,400 | $4,450 | $50 | $69,561 | $69,511 |
| $250,000 | $11,000 | $11,125 | $125 | $176,436 | $176,311 |
How to read this page
Colorado vs Utah RSU tax in 2026
This page compares state supplemental withholding for Colorado (CO) and Utah (UT) 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).
Utah is higher by about $25 in state tax alone; net take-home favors Colorado by about $25.
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%.
How each state’s rate works
Colorado (Flat PIT proxy (no separate table)): about 4.4% → $2,200 on the vignette.
Utah (Flat PIT proxy (no separate table)): about 4.45% → $2,225 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.
When both sides use flat (or flat-PIT proxy) rates, the dollar gap scales roughly with RSU size.
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 Colorado vs Utah comparison helps
Useful if…
- •Candidates weighing Colorado vs Utah 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
Colorado vs Utah checklist
Before treating the withholding gap as a job or relocation decision.
- 1Confirm Colorado and Utah 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/colorado and /rsu-tax-by-state/utah for full profiles.
- 5Run both scenarios in /rsu-tax-calculator.
Vignette net: $33,936 (CO) vs $33,911 (UT).
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.
Colorado vs Utah RSU tax FAQs
Utah withholds about $25 more in state tax ($2,200 vs $2,225).
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.
Colorado: ~4.4% PIT. Utah: ~4.45% PIT.
Colorado, by about $25.
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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