Moving from Illinois to Houston
for Retirement — The Real Financial Picture

Illinois' Retirement Income Tax Structure — What's Actually Taxed

Illinois has a flat income tax rate of 4.95% — but the exemptions for retirees are significant. Social Security is fully exempt. Pension income from defined-benefit plans (both public and private) is fully exempt. IRA and 401(k) distributions are fully exempt. The 4.95% rate applies primarily to wages, self-employment income, and investment income (dividends, capital gains, interest) for most retirees. Many Illinois retirees drawing Social Security, pension, and IRA income owe little or no Illinois state income tax. This makes the income tax argument for moving to Texas weaker for Illinois retirees than for California, New York, or Minnesota movers.

Where the Real Money Is: Illinois Property Taxes

The income tax savings for most Illinois retirees moving to Texas are modest — potentially zero if their income is all Social Security, pension, and IRA. But Illinois property taxes are a different story. DuPage County effective rates run 2.0–2.5%. Lake County runs 2.2–2.8%. Cook County varies wildly by municipality but suburban Cook commonly runs 2.5–3.5% on assessed values that compound annually without a Prop 13-style cap. A Naperville or Lake Forest homeowner paying $14,000–$22,000 per year in Illinois property taxes who moves to Heritage Grand at Cinco Ranch and pays $8,000 per year saves $6,000–$14,000 annually in property taxes alone.

The Illinois Escalation Problem — Why Retirees Are Leaving

Illinois property taxes do not have a formal cap on annual increases. Cook County assessments are triennial — the jump every three years can be substantial. DuPage and Lake County annual increases of $500–$1,500 per year are common on homes in the $500,000–$800,000 range. A retiree on fixed income watching their property tax bill climb $1,000–$1,500 per year faces a compounding burden that the Texas 65-and-older school tax freeze directly solves. Once filed in Houston, the school district portion — the largest single component — is permanently capped regardless of future rate increases or appraisal growth. No Illinois equivalent exists.

Illinois to Houston: Who the Move Makes Sense For

The move makes strong financial sense for: Illinois retirees with significant investment income (the 4.95% rate on dividends and capital gains does add up), retirees in high-tax suburban Cook, Lake, or DuPage who are paying $15,000+ per year in property taxes, and retirees whose children or grandchildren have relocated to the Texas market. It makes less compelling financial sense for retirees with income entirely from Social Security, pension, and IRA (Illinois exempts all three) who have modest property tax bills in less expensive Illinois suburbs.