Where to find Will County property tax information
Will County property tax records are held by the Will County Assessor's office and the Will County Treasurer's office. The Assessor maintains the assessed value and classification of each property. The Treasurer handles tax bills, payments, and delinquency records. Both offices offer online search tools that let you look up a property by address, parcel number, or owner name without visiting in person.
The Assessor's online search is called the Property Information Portal. You can reach it through the Will County Assessor's website. The Treasurer also maintains a separate tax bill search where you can see what taxes are owed on a specific parcel and payment history. These are two different databases, so you may need to check both depending on what information you need.
Both searches are free and do not require you to create an account. Results appear when ready after you enter your search terms. If you cannot find what you need online, you can visit either office in person or call to speak with staff who can help you locate a specific record.
Key Takeaways
- The Will County Assessor's Property Information Portal shows assessed value, property classification, and ownership details for any parcel in the county.
- The Will County Treasurer's tax search shows current and past tax bills, payment status, and whether taxes are owed on a property.
- Both searches are free, require no account, and return results when ready when you search by address or parcel number.
- If online searches do not return results, you can contact either office by phone or visit in person with the property address or parcel number.
How to search the Assessor's Property Information Portal
Open the Will County Assessor's website and look for the link to the Property Information Portal or online search tool. The portal typically appears on the homepage or under a "Search" or "Property Records" section. Click the link to open the search page.
You can search by property address, parcel number, or owner name. If you know the street address, enter it exactly as it appears on the property deed or tax bill — for example, "123 Main Street, Joliet, IL 60432". The search is not always flexible with spelling or abbreviations, so if your first search returns no results, try shortening the street name or removing the city and ZIP code.
If you have the parcel number (also called the PIN or property identification number), that is the fastest search method. The parcel number appears on property tax bills and deed documents. Enter it without spaces or dashes unless the search form instructs you otherwise. Owner name searches work if you know the last name of the person or entity that owns the property, though results may include multiple properties if the name is common.
Once results appear, click on the property to view details. The portal shows the assessed value, property class (residential, commercial, agricultural, etc.), square footage, number of bedrooms and bathrooms if applicable, and the owner's name and mailing address. Some portals also display a property map and recent assessment history.
How to search the Treasurer's tax bill records
The Will County Treasurer's office maintains a separate search for tax bills and payment information. Find this search on the Treasurer's website, usually under "Tax Search" or "Bill Search". Like the Assessor's portal, it is free and requires no login.
Enter the parcel number or property address. The Treasurer's search returns the current tax bill amount, the due date, and whether the bill has been paid. You can also see payment history going back several years on most properties. If taxes are delinquent (unpaid past the due date), the search will show the amount owed and any penalties or interest that have been added.
If you are looking at a property you plan to buy, the Treasurer's search tells you whether there are unpaid taxes that would become your responsibility. If you own a property and want to verify your payment was received, this search confirms the payment date and amount applied to your account.
What to do if your search returns no results
If you search by address and get no results, the address may be formatted differently in the county database. Try removing the apartment or unit number if the property is in a multi-unit building. Try entering just the street number and name without the city or ZIP code. If the property is rural, try searching by parcel number instead, which is more reliable for properties without a standard street address.
If you do not know the parcel number, you can find it on a recent property tax bill, a deed, or a mortgage document. You can also call the Assessor's office and provide the address — staff can give you the parcel number over the phone so you can search again.
If the property is very new or was recently transferred, it may not yet appear in the online database. County records are updated periodically but not in real time. If you believe the property should be in the system, contact the Assessor's office directly to confirm the record exists and ask when it will appear online.
Understanding assessed value versus market value
The assessed value shown in the Assessor's portal is not the same as what the property is worth on the open market. Assessed value is used to calculate property taxes and is typically lower than market value. The Assessor estimates assessed value based on recent sales of similar properties, the property's condition, and local market trends, but the estimate may lag behind actual market prices.
If you are buying or selling a property, do not rely on the assessed value to determine what the property should cost. That number is only for tax calculation purposes. A real estate agent, appraisal, or comparable sales analysis will give you a more accurate picture of current market value.
If you believe the assessed value is incorrect — for example, if it is much higher than similar properties in your area — you can file an appeal with the Assessor's office. The important date to appeal is usually in the spring, and the process varies by county. Contact the Assessor's office for details on how to file an appeal in Will County.
Contacting Will County offices if you need help
The Will County Assessor's office is located in Joliet and can be reached by phone during business hours. Staff can answer questions about assessed value, property classification, and how to read your assessment notice. They can also help you locate a parcel number if you only have the address.
The Will County Treasurer's office handles tax bills and payments. Call or visit if you have questions about what you owe, when payment is due, or whether a payment you made has been processed. The Treasurer can also explain what happens if taxes become delinquent and what options exist to bring an account current.
Both offices maintain websites with contact information, hours, and mailing addresses. Many questions can be answered by email or phone without visiting in person. If you need to see original documents or discuss a complex situation, an in-person visit may be necessary, so call ahead to confirm hours and ask whether an appointment is recommended.
Frequently Asked Questions
Can I see how much someone paid for a property?
The Assessor's and Treasurer's records do not show the sale price. Those records are maintained by the Will County Recorder's office, which keeps deed documents. You can search the Recorder's website or visit in person to find the deed, which may include the sale price or transfer tax information that indicates the price range.
What if I disagree with the assessed value on my property?
You can file an appeal with the Assessor's office. The appeal window is usually in the spring, and you must file by the important date to be heard that year. Contact the Assessor's office for the current appeal important date and instructions on how to submit your challenge. You will need to provide evidence that the assessed value is too high, such as recent appraisals or sales prices of comparable properties.
How often is the Assessor's database updated?
The Assessor updates records periodically, but not in real time. New properties or recent transfers may take weeks or months to appear online. If a property should be in the system but is not, contact the Assessor's office to confirm the record exists and ask when it will be available online.
Can I pay my taxes through the online search?
The search tools show what you owe, but payment is usually handled separately. The Treasurer's website typically has a payment portal where you can pay online by credit card, debit card, or bank transfer. Some properties can also be paid through the tax bill search itself. Check the Treasurer's website for current payment options and any fees that may explore.
What is a parcel number and where do I find it?
A parcel number (also called a PIN) is a unique identifier assigned to each property in the county. It appears on property tax bills, deeds, and mortgage documents. If you do not have a recent bill or deed, call the Assessor's office with the property address and they can provide the parcel number.