California vs Illinois: take-home pay and taxes
On a $75,000 salary you take home $57,564 a year in California and $58,025 in Illinois — $460 more in Illinois. But prices are about 11% higher in California, so moving from California to Illinois on the same take-home after prices takes $65,841.
| Per year | Offer A · California | Offer B · Illinois |
|---|---|---|
| Pay (salary and bonus) | $75,000 | $75,000 |
| Federal income tax | −$7,670 | −$7,670 |
| Social Security and Medicare | −$5,737 | −$5,737 |
| State and local taxes | −$4,028 | −$3,568 |
| Take-home | $57,564 | $58,025 |
| Offer value (take-home + match + benefits − commute) | $57,564 | $58,025 |
| Price level (U.S. = 100) | 110.7 | 100.0 |
| Value in U.S.-average prices | $51,991 | $58,049 |
Price level is BEA's Regional Price Parity for the state — what the same things cost there compared with the U.S. average, housing included. It's an average for the whole state, not a budget. The matching salary keeps Offer A's take-home after prices, with the same W-4 and no 401(k) or benefits.
Take-home pay in California and Illinois
| Salary | California take-home | Illinois take-home | California state taxes | Illinois state taxes | Illinois vs California |
|---|---|---|---|---|---|
| $50,000 | $40,560 | $40,025 | $1,795 | $2,330 | −$535 |
| $75,000 | $57,564 | $58,025 | $4,028 | $3,568 | +$460 |
| $100,000 | $72,319 | $74,375 | $6,861 | $4,805 | +$2,056 |
| $150,000 | $101,165 | $106,511 | $12,626 | $7,280 | +$5,346 |
| $200,000 | $130,536 | $139,172 | $18,391 | $9,755 | +$8,636 |
A year. Single filer, paid every two weeks, standard W-4, each state's default form choices, no 401(k) or benefits. Federal tax, Social Security and Medicare are the same in both; the whole difference is state and local tax and state payroll premiums.
What makes up the difference
- California: a graduated income tax, plus CA SDI (disability and paid family leave) — $4,028 a year on $75,000.
- Illinois: a flat income tax — $3,568 a year on $75,000.
The salary you'd need to move
| Salary now | California → Illinois: same take-home | … after prices | Illinois → California: same take-home | … after prices |
|---|---|---|---|---|
| $60,000 | $60,319 | $54,156 | $59,668 | $66,903 |
| $75,000 | $74,296 | $65,841 | $75,764 | $86,320 |
| $100,000 | $96,856 | $86,108 | $103,496 | $117,109 |
"After prices" uses the Bureau of Economic Analysis's Regional Price Parities for 2024: California 110.7, Illinois 100.0 (U.S. = 100). Housing is most of the gap — rents are 154.3 in California and 93.9 in Illinois on the same scale. These are state averages: a big city can cost well above its state's figure. See what rent fits in California and Illinois. On $75,000, the reverse move — Illinois to California — needs $86,320 for the same take-home after prices; Illinois is the cheaper state.
Who moves between them
About 15,128 people moved from California to Illinois and 19,953 from Illinois to California in 2024, according to the Census Bureau's American Community Survey — one of the 40 busiest pairs of states we cover. Survey estimates have margins of error.
If you move: your W-4 and state forms
Your federal W-4 doesn't change with the state. Give your employer Illinois's withholding form so it withholds Illinois tax, and make sure California withholding stops once you no longer live or work there. Moving mid-year usually means a part-year resident return in both states. Working remotely for an employer in the other state has its own rules — see the moving between states tax guide.
How it's worked out
- Take-home in each state from the same engine as our paycheck calculators: IRS Publication 15-T (2026), Social Security and Medicare, and each state's own withholding formula, payroll premiums and default form choices.
- Prices from the Bureau of Economic Analysis's Regional Price Parities for 2024 (released 2026-02-19): each state's price level for everyday spending, with the U.S. at 100. Dividing take-home by it puts both offers in the same dollars.
- The matching salary is found by searching salaries in the second state until its take-home, after prices, equals the first — to the cent.
More comparisons
California paycheck calculator · Illinois paycheck calculator · Job offer comparison · Salary needed to move · California vs Texas · Arizona vs California · California vs Nevada · California vs Washington · California vs New York · California vs Florida · California vs Oregon · California vs Virginia · California vs Colorado · Illinois vs Texas · Illinois vs Indiana · Illinois vs Wisconsin · Florida vs Illinois
Sources
- BEA — Real Personal Consumption Expenditures by State and Real Personal Income by State, 2024 (Feb 19, 2026) — Regional Price Parities: California 110.7, Hawaii 110.0, D.C. 109.9, New Jersey 108.8 highest; Arkansas 86.9 lowest; full table SARPP in BEA's interactive data (checked 2026-09-27)
- FRED (St. Louis Fed) — 2024 Regional Price Parities by State (BEA data) — all items, goods, rents and other services for every state and D.C. (checked 2026-09-27)
- IRS Publication 15-T (2026), Federal Income Tax Withholding Methods — Worksheet 1A and the annual percentage-method tables
- IRS Publication 15 (2026), Employer's Tax Guide — Social Security and Medicare rates
- Social Security Administration — 2026 wage base of $184,500
- U.S. Census Bureau — State-to-State Migration Flows, 2024 (ACS 1-year, Table 1) — movers age 1 and over by current state and state of residence one year earlier; estimates with margins of error (checked 2026-09-27)
- California EDD — 2026 Withholding Schedules, Method B – Exact Calculation Method — Tables 1–28; worked examples A–F
- Illinois Department of Revenue — Form IL-W-4, Employee's and other payee's Illinois withholding allowance certificate (R-07/23) — Step 1: yourself if no one else can claim you, your spouse, plus dependents → Line 1; Step 2: 65+ and blind boxes plus deductions ÷ 1,000 rounded → Line 2; claim all allowances at the highest-paying job and zero at the others (checked 2026-09-27)
Questions
Do you take home more in California or Illinois?
In Illinois: $460 more a year on $75,000 (single filer). California state taxes are $4,028 and Illinois's $3,568 on that salary.
What salary in Illinois equals $75,000 in California?
$74,296 for the same take-home pay, or $65,841 for the same take-home after prices (BEA Regional Price Parities: California 110.7, Illinois 100.0).
Is California or Illinois cheaper to live in?
Illinois: BEA puts prices about 11% lower there than in California on average, mostly because of housing. Costs vary a lot between cities within each state.