If you're an Illinois retiree, you've heard it at every dinner party: "Get out before the taxes eat you alive." The 4.95% flat income tax gets cited as the villain. Here's the problem with that advice — for most retirees, it's simply wrong. Illinois is one of the most income-tax-friendly states in the country for retirement income. The real reason to consider leaving is something else entirely.
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Talk to a Specialist →Illinois has a 4.95% flat income tax. But here's what most people miss: Illinois does not tax retirement income. That includes:
For a retiree living on Social Security, a pension, and IRA withdrawals, Illinois state income tax is effectively zero. That 4.95% rate applies primarily to wages (if you still work) and some investment income — not to the retirement income most 55+ households actually live on.
One word: property taxes. Illinois has among the highest effective property tax rates in the United States. Chicago-area collar counties routinely run 2.0%–3.0% effective. That's where the financial pain actually lives — and it's where a move to a low-property-tax state like Ohio produces real, permanent savings.
| Location | Effective Property Tax Rate | Annual Tax: $400K Home |
|---|---|---|
| DuPage County, IL | ~2.5% | ~$10,000 |
| Lake County, IL | ~2.8% | ~$11,200 |
| Will County, IL | ~2.7% | ~$10,800 |
| Butler County, OH (Cincinnati) | ~1.0% | ~$4,000 |
| Greene County, OH (Dayton) | ~1.35% | ~$5,400 |
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Getting the reason right changes which destination you should choose. If you believe you're fleeing income taxes, you might pick any low-income-tax state. But if you understand the real driver is property taxes, your filter becomes sharper: target the lowest property tax jurisdictions, and don't over-value income tax differences that barely affect you.
In the Cincinnati/Dayton corridor, that means prioritizing Butler County (~1.0%) and Clermont County (~1.05%) over the Dayton-side counties. A community like Bel Haven in West Chester or Villas at Waterford Glen in Amelia delivers the property tax relief that's the actual point of leaving Illinois — while the small Ohio income tax on your pension is a rounding error against $5,000–$6,000/yr in property tax savings.
Leave Illinois if the property taxes are crushing you — that's a legitimate, math-backed reason. Don't leave because someone told you the income tax is the problem; for retirees, it usually isn't. And when you run your own numbers, compare the right things: property tax rate against property tax rate, and factor in the modest Ohio income tax you'll newly owe. Done honestly, the move still wins for most Chicago-metro retirees — just for the right reason.
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