Step 1
Find the property
Enter a Winnebago County parcel number like 12-04-405-001 or a street address.
Before your results
Agree to the Terms of Use
HomeTaxChallenge provides information only. Please read the Terms of Use and Privacy Policy before we show any estimate.
- Not legal, tax or appraisal advice, and not an appraisal or opinion of value.
- No attorney-client relationship. HomeTaxChallenge does not file or represent you.
- No guarantee of any reduction or savings. Public records can contain errors.
- You decide whether and what to file, verify the county deadline, and file yourself.
Step 2
Review the historical county record
Here is the current public Winnebago County parcel and assessment record. We prefill a working house-value estimate from county data, and you can edit it if your notice shows a different value.
Step 3
Compare with nearby sales
An automated comparable-sales range (house value) from nearby public sales. Information only; not an appraisal or opinion of value.
Comparable sales selected (public records)
| Address | City | Sale price | Sale date | Living sq ft | Beds | Baths | $/living sq ft |
|---|
Step 4
Download your copy
Enter your email to download a pdf copy of your results.
Next step
If you decide to appeal, an optional flat-fee self-help packet is available.
We can organize the public county data, comparable sales, forms, and filing instructions you choose into a self-help packet. You review, sign, and file it yourself.
A one-time flat fee of $100 keeps the preparation cost fixed.
No representation agreement is required, HomeTaxChallenge does not represent you, and the information-only summary stays free.