Kane County's effective property tax rate of 2.2–2.6% is the middle band of the Chicago collar county market — meaningfully above DuPage (1.8–2.2%) but below Lake County (2.2–2.8%). At a $350K home, the annual tax bill runs roughly $7,700–$9,100 depending on your specific municipality and township. The wide range reflects genuine variation across the county: Naperville-adjacent Aurora communities run lower than Elgin's inner-ring areas.
Have questions about what you're reading? A specialist can walk you through real costs, honest comparisons, and what's actually available right now — free, no obligation.
Talk to a Specialist →Kane County Effective Tax Rate by Home Value
| Purchase Price | Annual Tax (low end) | Annual Tax (high end) | Monthly (avg) |
|---|---|---|---|
| $220,000 | $4,840 | $5,280 | $422 |
| $300,000 | $6,600 | $7,200 | $575 |
| $380,000 | $8,360 | $9,120 | $728 |
| $460,000 | $10,120 | $11,040 | $882 |
Kane County assesses at 33.33% of market value. Effective rate range reflects variation by municipality and school district. Use the effective rate approach (purchase price × rate) for budgeting rather than trying to calculate from the assessed value figure.
55+ Communities in Kane County
Ready to move from research to real conversations about this community?
We connect buyers with agents who know this market from the inside — real cost math, honest comparisons, and what's actually happening right now. Every agent is personally vetted by the Nova55Living founder. No scripts, no pressure.
Senior Assessment Freeze in Kane County
Kane County SCAFP deadline is typically July 1st, applied through your local township assessor. Kane County has multiple township assessors — verify which township your property falls in. Check kanecountyassessor.com for forms and current deadlines.
The standard SCAFP qualification requires age 65+ as of January 1st of the application year and household income under $65,000 including all sources. The freeze locks your assessed value — not your tax rate. If levies increase, your bill can still rise even with a frozen assessment.
Questions About Kane County 55+ Communities?
Connect with a Kane County buyer agent for current listings and specific tax history on homes you are evaluating.
Talk to an AgentRelated: Senior Assessment Freeze Guide · Illinois Retirement Income Tax Exemption · All Chicago Metro 55+ Communities