What You Pay and Who Collects It

Property taxes in Will County are collected by the county treasurer's office and split among multiple taxing bodies: the county itself, your municipality, school districts, park districts, and sometimes library or fire protection districts. You receive one bill from the Will County Treasurer, but the money is divided according to the tax rate set by each body. The amount you owe depends on your property's assessed value and the combined tax rates of all the districts that serve your address.

Will County uses a property assessment system where the county assessor's office determines the fair market value of your property every three years during the reassessment cycle. That assessed value is then multiplied by the tax rate (expressed as a percentage or per $100 of assessed value) to calculate your bill. The most recent countywide reassessment was completed in 2023, with the next one due in 2026.

Key Takeaways

  • Your Will County property tax bill comes from the county treasurer and includes taxes owed to the county, your city or village, school district, park district, and possibly other local bodies.
  • The county assessor determines your property's assessed value every three years; the next reassessment cycle runs through 2026.
  • You can view your property's assessed value and tax breakdown on the Will County Assessor's website or request a copy from the assessor's office.
  • Property tax bills are due in two installments: the first half is typically due in March, and the second half is due in September.
  • If you believe your assessed value is too high, you can file a formal objection with the Will County Board of Review within a set timeframe after reassessment.

How the Assessment Process Works

The Will County Assessor's office is responsible for determining the fair market value of every property in the county. During a reassessment year, assessors may visit properties or use comparable sales data, property records, and market analysis to set the assessed value. Residential properties are assessed at 33.33% of fair market value under Illinois law, meaning if your home is worth $300,000, the assessed value would be $100,000.

After the assessor sets the value, it goes to the Will County Board of Review for a public hearing period. Property owners receive a notice of assessment and have the right to object if they believe the value is incorrect. The Board of Review holds hearings where you can present evidence—such as recent appraisals, comparable sales, or property condition issues—to support a lower value. If you do not object during the review period, the assessed value becomes final for that three-year cycle.

When Bills Are Due and How to Pay

Will County property tax bills are issued twice per year. The first installment is typically due in March, and the second installment is due in September. The exact due dates vary slightly by year and are printed on your bill. Payments can be made online through the Will County Treasurer's website, by mail, or in person at the treasurer's office in Joliet.

If you pay late, a penalty and interest are added to your bill. The penalty structure is set by state law and increases the longer the payment is overdue. If taxes remain unpaid for a long period, the county may place a lien on the property or sell the tax certificate to a third party, which can eventually lead to a tax sale if the debt is not resolved.

Understanding Your Tax Bill Breakdown

Your Will County property tax bill shows the total amount owed and breaks down how much goes to each taxing body. For example, a bill might show $2,000 total, with $400 to Will County, $600 to your municipality, $800 to the school district, $150 to the park district, and $50 to a library district. Each body sets its own tax rate based on its budget needs and the total assessed value of properties in its district.

The tax rate for each body is expressed as a percentage of assessed value or as a dollar amount per $100 of assessed value. If your school district's rate is 2.5% and your assessed value is $100,000, you owe $2,500 to the school district. Understanding this breakdown helps you see which services your taxes fund and can be useful if you want to attend a taxing body's budget meeting or object to a specific rate increase.

Objecting to Your Assessed Value

If you believe the Will County Assessor overvalued your property, you can file a formal objection with the Will County Board of Review. The objection must be filed during the public review period, which typically runs for several weeks after assessment notices are mailed. The exact dates are announced by the assessor's office and printed on your assessment notice.

To file an objection, you complete a form available from the Board of Review and submit it by the deadline. You can then request a hearing where you present evidence of why the value should be lower. Common evidence includes recent home appraisals, comparable sales of similar properties in your area, photographs of property defects, or documentation of needed repairs. The Board of Review will consider your evidence and either uphold, lower, or raise the assessed value. If you disagree with the Board's decision, you can appeal to the Illinois Property Tax Appeal Board, though this process has additional filing fees and deadlines.

Tax Relief Programs and Exemptions

Illinois offers several property tax relief programs that may reduce the amount you owe. The Homeowner's Property Tax Relief Act provides a credit on your state income tax return if your property taxes exceed a certain percentage of your household income. The Senior Citizen Property Tax Deferral Program allows homeowners age 65 and older to defer paying property taxes, though interest accrues and the debt must eventually be paid.

Some property owners may also be may have access to to exemptions that reduce assessed value. These include exemptions for disabled veterans, surviving spouses of military members, and certain agricultural properties. To claim an exemption, you must file a form with the Will County Assessor's office, usually before a set deadline. The assessor's office website lists all available exemptions and the documentation required for each one.

Finding Your Property Information and Tax Records

You can look up your property's assessed value, tax breakdown, and payment history through the Will County Assessor's website or the Will County Treasurer's website. Both offices maintain searchable databases where you enter your address or parcel number. The assessor's site shows your current assessed value, the date of the last assessment, and comparable properties in your area. The treasurer's site shows your tax bill, payment status, and any penalties or interest owed.

If you need a copy of your full assessment record, a tax bill from a previous year, or documentation of payment, you can request it from either office by phone, mail, or in person. The assessor's office is located in Joliet, as is the treasurer's office. Both charge small fees for copies of certain documents, though basic information requests are often free.

Frequently Asked Questions

What happens if I miss a property tax payment?

A penalty and interest are added to your bill immediately. If the debt remains unpaid for several months, the county may file a lien against your property. If taxes stay unpaid for years, the county can sell a tax certificate to an investor, and if that certificate is not redeemed, the investor can eventually foreclose on the property and take ownership.

Can I appeal the Board of Review's decision on my assessed value?

Yes. You can file an appeal with the Illinois Property Tax Appeal Board within 30 days of the Board of Review's decision. There is a filing fee, and you must submit new evidence or show that the Board made an error. The appeal process is more formal than the Board of Review hearing and may require legal representation.

How often does the Will County Assessor reassess properties?

Every three years. The most recent reassessment was completed in 2023, so the next one will occur in 2026. Between reassessment years, your assessed value typically stays the same unless you file an appeal or the assessor discovers a significant change to the property.

Do I have to pay property taxes if I own my home outright?

Yes. Property taxes are owed by anyone who owns real property in Will County, whether or not there is a mortgage. If you have a mortgage, your lender may collect taxes as part of your monthly escrow payment, but you are still legally responsible for the debt.

Where do my property tax dollars go?

Your tax bill is split among multiple bodies: Will County government, your city or village, your school district, park district, and possibly a library or fire protection district. Each body uses its portion to fund services like schools, roads, police, fire protection, parks, and libraries. Your bill shows exactly how much goes to each body.