What Will County property taxes pay for and who collects them
Will County property taxes fund schools, roads, police and fire departments, courts, and county administration. The county assessor's office determines the assessed value of your property, but you do not pay the county directly. Instead, you pay a tax bill that combines levies from multiple bodies: your school district, township, municipality, library district, and Will County itself. Each body sets its own tax rate and sends its portion to the county treasurer, who collects one combined bill from you.
The county assessor reassesses all properties every three years. That reassessment is the main driver of changes in your tax bill from year to year. A reassessment can raise or lower your assessed value depending on market conditions and property condition. You receive notice of the reassessment in the mail, and you have the right to object to it.
Key Takeaways
- Will County property taxes pay for schools, roads, police, fire, courts, and county services through a single bill that combines levies from multiple taxing bodies.
- The county assessor reassesses properties every three years, and reassessment notices arrive by mail with instructions for filing an objection.
- Your tax bill arrives in two installments: the first due in March and the second due in September, with penalties for late payment.
- Homeowners over 65, disabled homeowners, and low-income households may be may have access to to tax deferrals, exemptions, or senior freeze programs.
- If you disagree with your assessed value, you can file a formal objection with the county assessor's office within 30 days of receiving the reassessment notice.
When and how to pay your Will County property tax bill
The Will County treasurer sends property tax bills twice per year. The first installment is due March 1, and the second installment is due September 1. You can pay by mail, in person at the treasurer's office in Joliet, or online through the county website. Late payments incur a penalty: typically 1.5 percent per month after the due date, plus interest.
If you own property in Will County but live elsewhere, you can still pay online or by mail. The treasurer's office does not require you to appear in person. If your bill does not arrive by mid-February (for the March payment) or mid-August (for the September payment), contact the treasurer's office to confirm your mailing address.
How the county assessor determines your property's assessed value
The county assessor uses market value — what your property would sell for on the open market — as the starting point. Illinois law then requires the assessor to apply an assessment level, which is a percentage of market value. For residential property in Will County, that level is typically 33.3 percent. So if your home's market value is estimated at $300,000, the assessed value would be roughly $100,000.
The assessor gathers data from recent sales of similar properties in your area, property records, and physical inspections. You do not have to let the assessor inside your home, but refusing an inspection can result in a higher estimated value based on older data. The assessor's office maintains records you can view online or in person.
Objecting to your property assessment
If you receive a reassessment notice and believe the assessed value is too high, you have 30 days to file a formal objection. You do this by submitting a Petition for Property Tax Reduction to the Will County assessor's office. The form is available on the assessor's website and at the office in Joliet.
Your petition should explain why you believe the value is wrong. Common reasons include recent major repairs needed, property condition problems, or comparable sales that show a lower market value. Bring documentation: recent appraisals, repair estimates, photos of damage, or printouts of similar homes that sold for less. The assessor's office will review your petition and may schedule a hearing. If you disagree with the result, you can appeal to the Property Tax Appeal Board, a state body that hears disputes.
The deadline to file is strict. If you miss the 30-day window, you lose the right to object until the next reassessment cycle, which is three years later.
Tax relief programs for seniors, disabled homeowners, and low-income households
Will County and the state of Illinois offer several programs that reduce or defer property taxes for certain households. The Senior Citizen Assessment Freeze Homestead Exemption freezes your assessed value at the level it was when you turned 65, as long as you own and live in the home. You must apply through the assessor's office, and you remain on the program as long as you meet the income limit, which changes yearly.
The Homestead Property Tax Exemption reduces the assessed value of your primary residence by a set amount (currently $6,000 in most of Illinois, though this varies). You apply once, and the exemption continues automatically each year unless your circumstances change. The Disabled Persons Exemption works similarly for homeowners with a disability documented by the Department of Veterans Affairs or Social Security.
The Property Tax Deferral Program allows homeowners 65 and older, or disabled homeowners of any age, to defer paying property taxes. The state places a lien on your property, and taxes are paid when you sell the home or pass it to your heirs. You must have a household income below a set threshold (which varies yearly) and own your home free and clear or have very little mortgage debt remaining.
Applications for these programs are filed with the Will County assessor's office. Deadlines and income limits change annually, so contact the office directly for current requirements.
Understanding your tax bill and what each part funds
Your property tax bill is broken down by taxing body. A typical bill shows separate line items for your school district, Will County, your municipality, your township, and any special districts like a library or park district. Each line shows the tax rate (expressed as a percentage or per $100 of assessed value) and the dollar amount you owe to that body.
School districts typically account for 40 to 60 percent of your total bill, depending on your location. Will County itself usually represents 5 to 15 percent. The remainder goes to your city or village, township, and special districts. If you want to know exactly where your money goes, the assessor's office and your municipality's finance department can provide a detailed breakdown.
Frequently Asked Questions
What happens if I do not pay my property tax bill on time?
A penalty of 1.5 percent per month accrues after the due date, plus interest. If taxes remain unpaid for a long period, the county can place a lien on your property or, in extreme cases, foreclose. Contact the treasurer's office immediately if you cannot pay by the due date to discuss payment plans or hardship options.
Can I appeal my assessment more than once?
You can file a new petition each time the assessor reassesses your property, which happens every three years. If you object and disagree with the result, you can appeal to the Property Tax Appeal Board. After that, your only remaining option is to wait for the next reassessment cycle.
Do I have to let the assessor inspect my home?
No, you can refuse entry. However, the assessor will estimate your property's condition based on available records, which may result in a higher assessed value. If you refuse an inspection, you should provide documentation of your home's actual condition to support a lower value.
How do I know if I may have access to for the Senior Citizen Assessment Freeze?
You must be 65 or older, own your home, live in it as your primary residence, and meet an annual income limit set by the state. The limit changes each year. Contact the Will County assessor's office with your age and approximate household income, and they can tell you whether you likely may have access to.
What is the difference between the Homestead Exemption and the Senior Freeze?
The Homestead Exemption reduces your assessed value by a fixed amount each year and is available to most homeowners. The Senior Freeze locks your assessed value at the level when you turned 65 and is only for seniors. You can use both programs at the same time if you meet the requirements for each.