A $75,000 salary in Chicago needs to be about $74,800 in Phoenix to keep pace with local prices. The tax math then pays you a second time: the same $75,000 takes home $2,046 more in Arizona than in Illinois. Here is the full money math, plus the paperwork checklist that actually changes when you cross a state line.
The money math
What your salary needs to be
| From (anchor metro) | To (anchor metro) | $75,000 becomes | Price gap |
|---|---|---|---|
| Chicago (RPP 103.6) | Phoenix (RPP 103.3) | $74,800 | -0.3% |
| Chicago (RPP 103.6) | Tucson (RPP 96.9) | $70,200 | -6.5% |
Equivalent salary = $75,000 x destination RPP / origin RPP, using BEA Regional Price Parities (US average = 100) for the anchor metros of each state on this route. Rounded to the nearest $100.
Take-home pay at $75,000 in both states
| State | Federal tax | FICA | State income tax | Take-home | Effective rate |
|---|---|---|---|---|---|
| Illinois | $7,670 | $5,738 | $3,712 | $57,880 | 22.8% |
| Arizona | $7,670 | $5,738 | $1,666 | $59,926 | 20.1% |
Single filer, standard deduction, no 401(k) contributions, from the same 2026 engine that powers our paycheck calculators.
The state tax switch
Illinois taxes wages at a flat 4.95 percent, about $3,712 a year at a $75,000 salary. Arizona taxes wages at a flat 2.5 percent, about $1,666 a year at a $75,000 salary. At $75,000 state income tax drops by $2,046, which lands directly on your take-home: $2,046 more at the same salary.
What changes when you move
Three pieces of paperwork follow every Illinois to Arizona move. The deadlines are set by state law and they differ, so treat each agency’s own page as the source of truth:
- State tax residency. The year you move you will generally file a part-year return in each state, splitting income by when you earned it. Give both agencies your move date: Illinois Department of Revenue and Arizona Department of Revenue.
- Payroll withholding. Update your address with payroll and refile your federal W-4 plus the state withholding form so Arizona tax comes out of the first post-move paycheck instead of arriving as a bill in April. The Arizona paycheck calculator shows what the new withholding should produce.
- Driver’s license and vehicle registration. Every state gives new residents a window, typically 30 to 60 days, to swap a license and plates. Check the current deadline at the Illinois Secretary of State and the Arizona MVD.
The move itself is the one cost we quote no dollars for: it swings too far between a self-drive and a full-service interstate move to generalize. Whatever the quote, verify the mover before paying a deposit: Protect Your Move (FMCSA).
Where to go next
- Chicago vs Phoenix cost of living comparison
- Chicago vs Tucson cost of living comparison
- The cost of living in Phoenix
- The cost of living in Tucson
- Run your exact salary through the cost of living raise calculator
- Take-home pay at any salary: the Arizona paycheck calculator
- All city-to-city cost of living comparisons