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Indiana vs Illinois Severance Tax

Indiana keeps about $385 more after tax than Illinois on $100,000 salary · 5 years · 2 weeks/year · single · lump sum.

By Sammy S. · Founder · AuthorUpdated for 2026

Higher take-home on the vignette

Indiana keeps more

About $385 more take-home — $16,879 vs $16,495 net on $100,000 salary · 5 years · 2 weeks/year · single · lump sum.

Side-by-side severance tax scoreboard

Indiana

$16,879

Net take-home · rank #28

State tax
$567
Federal + payroll
$1,784
Total withheld
$2,352
UI category
Verify with agency
Indiana profile →

Illinois

$16,495

Net take-home · rank #43

State tax
$952
Federal + payroll
$1,784
Total withheld
$2,736
UI category
Full UI offset
Illinois profile →

State tax gap: $385. Total withholding gap: $385.

Package ladder: Indiana vs Illinois

Same package formula at four salary / service / weeks-per-year combinations. The net gap column shows how much more take-home the higher-net state provides at each package size.

$80k · 3 yrs · 1 wk/yr

Indiana$4,126
Illinois$4,034

Gap $92 net · higher in Indiana

$100,000 salary · 5 years · 2 weeks/year

Indiana$16,879
Illinois$16,495

Gap $385 net · higher in Indiana

$120k · 8 yrs · 2 wk/yr

Indiana$30,758
Illinois$30,020

Gap $738 net · higher in Indiana

$150k · 10 yrs · 3 wk/yr

Indiana$67,157
Illinois$65,426

Gap $1,731 net · higher in Indiana

Key takeaways — Indiana vs Illinois

  • Indiana keeps more after tax — $16,879 vs $16,495, about $385 more take-home.
  • Indiana models $567 of state tax; Illinois models $952 ($385 apart).
  • Same gross package (~$19,231 / 10 weeks) in both states — federal income tax and employee payroll still apply even when state wage tax is $0.
  • Indiana unemployment interaction: Verify with agency. Illinois: Full UI offset. That is separate from the paycheck tax gap.
  • Across package sizes, the net gap moves from about $92 ($80k · 3 yrs · 1 wk/yr) to $1,731 ($150k · 10 yrs · 3 wk/yr).

Indiana vs Illinois severance tax in 2026

When comparing a layoff package in Indiana and Illinois, the gross weeks offer is only half the story. This page holds the package formula fixed ($100,000 salary · 5 years · 2 weeks/year · single · lump sum) and runs both states through the same single-filer lump-sum engine so the only moving piece is state tax law.

Indiana keeps about $385 more after modeled federal, state, and employee payroll tax. Most of that gap is state income tax ($952 in Illinois vs $567 in Indiana).

Use the package ladder for smaller or larger offers, then open each state calculator page to change filing status, installments, or PTO add-ons.

What “tax on severance” means here

US severance is generally treated as wages for federal income tax and FICA. States with a wage income tax usually tax the package too; no-wage-tax states still show federal and payroll withholding.

For Indiana the vignette shows $2,352 total withheld ($1,784 federal/payroll stack + $567 state) and $16,879 net. For Illinois: $2,736 total / $16,495 net.

This is an annualized single-filer model on the lump sum as if it were the year’s only wage income for bracket purposes — payroll systems may withhold differently mid-year. Reconcile on the return.

Paycheck tax vs unemployment offsets

Indiana is listed as “Verify with agency” and Illinois as “Full UI offset” for how severance interacts with unemployment insurance on our state pages.

A no-offset state can still withhold more income tax than a full-offset state. Tax and UI are separate decisions — lump sum vs installments often matter more for UI timing than for total income tax owed.

File for unemployment promptly and confirm current rules with each state agency; categories here are summaries, not claims advice.

What this comparison leaves out

Employer taxes, city wage taxes, negotiated extras (outplacement, COBRA subsidies), and equity acceleration are outside the vignette.

Installments that cross calendar years can change Social Security wage-base timing even when state tax looks similar.

Canada uses different rules (ESA / common law / retiring allowance) — use the Canada severance calculator for provinces.

Concepts to know for this comparison

Short definitions so package tax and UI rules do not get mixed up.

Gross package vs net

Gross is weeks × weekly pay (plus any modeled add-ons). Net here is gross minus modeled federal income tax, employee payroll, and state tax — about $16,879 in Indiana vs $16,495 in Illinois on the vignette.

Why federal still appears

Even in no-wage-tax states, federal income tax and FICA apply to severance. That is why both sides show substantial total withholding.

UI offset category

Describes whether severance delays or reduces unemployment benefits week-for-week. It does not change the income-tax engine on this page.

Lump sum vs installments

Total tax owed depends on the tax year(s) the income lands in. Installments can stretch a UI blackout in full-offset states even when the tax total is similar.

Myths vs facts — Indiana vs Illinois

“No state income tax means almost no tax on severance.”

Federal income tax and FICA still apply. Indiana still models about $2,352 total withheld ($16,879 net) on this vignette.

“The state with better UI rules always wins on take-home.”

Indiana (Verify with agency) vs Illinois (Full UI offset) can diverge on UI timing while the paycheck tax ranking goes the other way. Read both columns.

“Withholding on the check equals final tax.”

Employers may use supplemental methods. Your return uses annual income, filing status, and credits — this page is a standardized single-filer model.

“The $100k / 5-year gap is the same for every package.”

The modeled net gap moves from about $92 on the small package to $1,731 on the large one — match the ladder to your offer.

Who this Indiana vs Illinois page helps

Useful if…

  • •Employees comparing Indiana and Illinois layoff offers with similar gross weeks.
  • •People choosing where to base a remote role before a known RIF.
  • •Anyone weighing lump-sum vs installment tax and UI timing together.
  • •Readers who need a dollar gap, not just “high tax / low tax” labels.

Use a fuller model if…

  • •You need married filing jointly, dependents, or itemized deductions modeled.
  • •City wage tax or multi-state sourcing dominates the check.
  • •You need official unemployment eligibility advice for a specific claim.
  • •Equity, pensions, or non-cash consideration make up most of the package.

Common mistakes reading this pair

  • Comparing only gross weeks and ignoring state income tax.
  • Assuming no-wage-tax states mean near-zero total withholding.
  • Using the $100k vignette for a $250k / 15-year package without checking the ladder.
  • Treating UI offset category as a substitute for tax math.
  • Forgetting Social Security wage-base resets if installments cross January 1.

Indiana vs Illinois checklist

Before treating the tax gap as a negotiation or move decision.

  1. 1Confirm the package size — start with the vignette, then check the ladder row closest to your offer.
  2. 2Note state tax ($567 vs $952) and UI category (Verify with agency vs Full UI offset).
  3. 3Decide whether lump sum or installments matter more for cash flow and UI.
  4. 4Re-run with your filing status in the severance calculator.
  5. 5If either state is “Verify with agency,” call the unemployment office before relying on the offset label.
  6. 6Document assumptions (single, lump sum, weeks/year policy) when sharing the comparison.

Indiana vs Illinois severance tax FAQs

Indiana keeps about $385 more after modeled federal, state, and employee payroll tax ($16,879 vs $16,495).

Indiana: $567. Illinois: $952 — a $385 gap. Federal and FICA still apply in both.

Indiana is coded as “Verify with agency” and Illinois as “Full UI offset” on our state pages (DOL / state UI agency summaries). Offset rules are separate from paycheck tax — verify with each state’s unemployment agency before choosing lump sum vs installments.

$100,000 salary · 5 years · 2 weeks/year · single · lump sum. Gross package is about $19,231 (10 weeks). Re-run your exact salary, years, and schedule in the severance calculator.

Usually no. The vignette net gap is about $385 before housing, job market, and benefits. Use this page for package math, not a relocation decision by itself.

Match the ladder. Net gaps run from about $92 on $80k · 3 yrs · 1 wk/yr to $1,731 on $150k · 10 yrs · 3 wk/yr. If your offer sits between rows, interpolate or run the calculator at the exact salary and years.

Yes on this model: federal income tax and employee Social Security / Medicare (plus Additional Medicare when applicable). State income tax and any modeled state disability premium appear only where the engine has them.

Compare another pair

Compare any two states

Severance package net take-home at multiple package sizes on the ladder.

Single filer, lump sum, 2026 rules. Modeled federal income tax, employee payroll, and state wage tax. Unemployment-insurance offset categories are summaries — verify current rules with each state agency. Estimates, not tax advice.