When homeowners argue about property taxes, they usually talk about the assessor.
That makes sense. The assessment is visible. The value is personal. It feels like the starting point.
But the final bill is also shaped by local levies, and schools are often the largest piece.
Quick Answer
Cook County Treasurer Maria Pappas's March 2026 report says K-12 school districts accounted for 55% of county property taxes in 2024 and increased property taxes to $10.5 billion from $3.64 billion over 30 years.
Why This Matters
If your tax bill rises, the assessment may be part of the story. But levy decisions can be part of the story too.
That means two homeowners can both be right:
- One says, "My assessment looks too high."
- Another says, "My local taxing bodies keep asking for more."
Those are different problems.
What An Appeal Does
An assessment appeal is about your property's assessed value or record. It can help if your home is overassessed, similar homes are assessed lower, or the property record is wrong.
It does not vote on school budgets, referendum questions, or tax levies.
What Homeowners Should Watch
Pay attention to:
- Assessment notices.
- Exemption status.
- School district levy decisions.
- Referendum questions.
- Tax bill breakdowns by taxing body.
That is how you stop treating the whole bill like one mystery number.
FAQ
Should I appeal because school taxes are high?
No. Appeal because the assessment or record looks wrong. High school levies may explain part of the bill, but they are not appeal evidence by themselves.
Can a lower assessment still help?
Yes, if your property is overassessed. It may reduce your share of the tax burden, even if levies are rising.
Next Step
Check the assessment and exemptions first. Then read the bill breakdown so you know what part of the system is actually driving the increase.