Wisconsin
$2,650
5.3% state
- Total withheld
- $16,514
- Net RSU
- $33,486
- Federal + FICA
- $13,864
- Rank
- #17
Compare different states
2026
2026Wisconsin vs Idaho RSU Tax
Wisconsin and Idaho withhold $2,650 state tax on the vignette RSU.
By Sammy S. · Founder · AuthorUpdated for 2026
Key finding
Wisconsin and Idaho tie on state withholding
Both withhold $2,650 state tax on $50,000 RSU vest (100 shares × $500 FMV) with $150,000 other annual income (flat supplemental method).
Side-by-side RSU withholding scoreboard
Idaho
$2,650
5.3% state
- Total withheld
- $16,514
- Net RSU
- $33,486
- Federal + FICA
- $13,864
- Rank
- #16
Key takeaways — Wisconsin vs Idaho RSU tax
- Wisconsin and Idaho both withhold about $2,650 state tax on $50,000 RSU vest (100 shares × $500 FMV) with $150,000 other annual income (flat supplemental method).
- Wisconsin: 5.3% (WI graduated supplemental bands). Idaho: 5.3% (Published flat supplemental).
- Federal withholding is $11,000 in both states on this vignette (22% flat per IRS Pub. 15); FICA is $2,864 each.
- Wisconsin ranks #17; Idaho ranks #16 (#1 = highest state withholding).
- Model custom RSU vests at /rsu-tax-calculator.
Rule contrast — Wisconsin vs Idaho
| Topic | Wisconsin | Idaho |
|---|---|---|
| Withholding method | WI graduated supplemental bands | Published flat supplemental |
| Supplemental rate | 5.3% | 5.3% |
| Vignette state tax | $2,650 | $2,650 |
| Vignette federal + FICA | $11,000 + $2,864 | $11,000 + $2,864 |
| Vignette total withheld | $16,514 | $16,514 |
| Vignette net | $33,486 | $33,486 |
| Rank (curated) | #17 | #16 |
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 | Wisconsin state | Idaho state | State gap | WI net | ID net |
|---|---|---|---|---|---|
| $15,000 | $795 | $795 | $0 | $9,757.50 | $9,757.50 |
| $50,000 | $2,650 | $2,650 | $0 | $33,486 | $33,486 |
| $100,000 | $5,300 | $5,300 | $0 | $68,661 | $68,661 |
| $250,000 | $19,125 | $13,250 | $5,875 | $168,311 | $174,186 |
How to read this page
Wisconsin vs Idaho RSU tax in 2026
This page compares state supplemental withholding for Wisconsin (WI) and Idaho (ID) 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).
State withholding ties at about $2,650. Net RSU still depends on federal and FICA.
Wisconsin uses graduated supplemental bands by annual wages; this vignette falls in the 5.3% band.
Published state supplemental withholding at 5.3% on RSUs and other supplemental wages.
How each state’s rate works
Wisconsin (WI graduated supplemental bands): about 5.3% → $2,650 on the vignette.
Idaho (Published flat supplemental): about 5.3% → $2,650 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 Wisconsin vs Idaho comparison helps
Useful if…
- •Candidates weighing Wisconsin vs Idaho 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
Wisconsin vs Idaho checklist
Before treating the withholding gap as a job or relocation decision.
- 1Confirm Wisconsin and Idaho 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/wisconsin and /rsu-tax-by-state/idaho for full profiles.
- 5Run both scenarios in /rsu-tax-calculator.
Vignette net: $33,486 (WI) vs $33,486 (ID).
What the state gap means
Identical supplemental rates on this vignette — compare regular wage tax and cost of living separately.
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.
Wisconsin vs Idaho RSU tax FAQs
Wisconsin and Idaho withhold the same state tax on this vignette ($2,650).
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.
Wisconsin: 5.3%. Idaho: 5.3%.
They tie at about $33,486 net.
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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