Kane County Property Tax Guide for 55+ Buyers

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.

The Kane County supplemental tax bill risk: When you purchase a home in Kane County at a price significantly above the previous owner's assessed value, the township assessor will reassess at the new market value. Kane County reassesses on a 4-year township cycle. If you buy a $420K home that was assessed based on a prior $310K sale, you may be paying tax on the old assessment for 1–3 years before correction. Budget for the full new-market-value assessment from day one, and ask your agent to pull the current assessed value (not just the listing price) before closing.

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

Carillon at Stonegate — Aurora~$225/mo

Stonegate West — Aurora~$200/mo

Lincoln Valley — North Aurora~$175/mo

Regency at Bowes Creek — Elgin (Toll Brothers)~$250/mo

Edgewater — Elgin~$175/mo

Chatham Grove — Aurora~$175/mo

Meadowridge Villas — Sugar Grove~$200/mo

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 Agent