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Wisconsin vs Idaho Bonus Tax

Wisconsin and Idaho withhold $530 state tax on the vignette bonus.

By Sammy S. · Founder · AuthorUpdated for 2026

Key finding

Wisconsin and Idaho tie on state withholding

Both withhold $530 state tax on $10,000 bonus with $80,000 year-to-date wages (flat supplemental method).

Side-by-side bonus withholding scoreboard

Wisconsin

$530

5.3% state

Total withheld
$3,495
Net bonus
$6,505
Federal + FICA
$2,965
Rank
#17
Wisconsin profile →

Idaho

$530

5.3% state

Total withheld
$3,495
Net bonus
$6,505
Federal + FICA
$2,965
Rank
#16
Idaho profile →

Key takeaways — Wisconsin vs Idaho bonus tax

  • Wisconsin and Idaho both withhold about $530 state tax on $10,000 bonus with $80,000 year-to-date wages (flat supplemental method).
  • Wisconsin: 5.3% (WI graduated supplemental bands). Idaho: 5.3% (Published flat supplemental).
  • Federal withholding is $2,200 in both states on this vignette (22% flat per IRS Pub. 15); FICA is $765 each.
  • Wisconsin ranks #17; Idaho ranks #16 (#1 = highest state withholding).
  • Model custom bonuses at /bonus-tax-calculator.

Rule contrast — Wisconsin vs Idaho

TopicWisconsinIdaho
Withholding methodWI graduated supplemental bandsPublished flat supplemental
Supplemental rate5.3%5.3%
Vignette state tax$530$530
Vignette federal + FICA$2,200 + $765$2,200 + $765
Vignette total withheld$3,495$3,495
Vignette net$6,505$6,505
Rank (curated)#17#16

State withholding and net at different bonus sizes

$80,000 YTD wages; engine flat supplemental method. State gap is state tax only; net columns include federal and FICA.

BonusWisconsin stateIdaho stateState gapWI netID net
$5,000$265$265$0$3,252.50$3,252.50
$10,000$530$530$0$6,505$6,505
$25,000$1,325$1,325$0$16,262.50$16,262.50
$50,000$2,650$2,650$0$32,525$32,525

How to read this page

Wisconsin vs Idaho bonus tax in 2026

This page compares state supplemental withholding for Wisconsin (WI) and Idaho (ID) on $10,000 bonus with $80,000 year-to-date wages (flat supplemental method), calculated from our engine (same engine as the bonus calculator).

State withholding ties at about $530. Net bonus 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 bonus and other supplemental wages.

How each state’s rate works

Wisconsin (WI graduated supplemental bands): about 5.3% → $530 on the vignette.

Idaho (Published flat supplemental): about 5.3% → $530 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 $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.

Same bonuses, different state tax

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.

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 bonuses
  • •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.

  1. 1Confirm Wisconsin and Idaho supplemental rules with each revenue department.
  2. 2Ask which withholding method payroll uses (flat vs aggregate).
  3. 3Check the bonus ladder for your award size.
  4. 4Open /bonus-tax-by-state/wisconsin and /bonus-tax-by-state/idaho for full profiles.
  5. 5Run both scenarios in /bonus-tax-calculator.

Vignette net: $6,505 (WI) vs $6,505 (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 bonus calculator for custom amounts and YTD wages.

Wisconsin vs Idaho bonus tax FAQs

Wisconsin and Idaho withhold the same state tax on this vignette ($530).

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 $6,505 net.

No. This comparison is state supplemental withholding plus federal and FICA only.

Not on this vignette. Both use 22% flat federal supplemental withholding ($2,200) plus the same FICA rules.

Compare another pair

Compare any two states

Supplemental bonus withholding on a $10,000 bonus with $80,000 YTD wages.