What appears on a Will County property tax bill

Your Will County property tax bill lists the assessed value of your property, the tax rate applied to it, and the total amount you owe. The bill shows which taxing bodies — the county, school district, municipality, and special districts — are collecting from your payment. Each body's portion appears as a separate line item.

The bill also displays your property's parcel number, the assessment date, and payment due dates. If you have a mortgage, your lender's name and address appear so the servicer can be notified of unpaid taxes. The document includes instructions for payment methods and where to send checks or make online payments.

Will County assessor's office sends bills in late spring or early summer for taxes due that calendar year. The exact mailing date varies year to year, so the bill itself states when payment is due — typically in two installments, one in June and one in September.

Key Takeaways

  • Your Will County bill shows the assessed value of your property and breaks down which local taxing bodies — county, school, municipality, and special districts — are collecting taxes from your payment.
  • The bill lists two payment due dates in the same calendar year, usually in June and September, with penalties for late payment on each date.
  • The parcel number on your bill is the unique identifier for your property in Will County's records and is needed if you file an assessment appeal.
  • If you believe the assessed value is incorrect, you can file a complaint with the Will County Board of Review within a set window after the bill is mailed.

How the assessed value is determined

Will County's assessor's office assigns an assessed value to your property, which is typically a percentage of its estimated market value. Illinois law sets this percentage — called the assessment level — differently for different property types. Residential property is assessed at 33.3 percent of market value, while commercial and industrial property may be assessed at different rates.

The assessor estimates market value by comparing your property to similar properties that sold recently in your area. If your property has not sold recently, the assessor uses sales data from comparable homes. The assessed value is not the same as what you could sell your house for; it is a calculation used only to determine your tax bill.

The assessor reassesses properties on a schedule set by Will County. Some areas are reassessed every year, while others are reassessed every three years. You can find out when your property was last assessed by contacting the Will County assessor's office or checking the assessment notice that arrives before your tax bill.

Understanding the tax rate and calculation

Your tax bill is calculated by multiplying your assessed value by a tax rate. The tax rate is not a single number — it is the combined rate of every taxing body that collects from your property. Your school district, municipality, county, and any special districts (like a park district or library district) each set their own rate, and they are added together.

The combined rate appears on your bill, but it is also useful to see the individual rates. You can request a tax rate breakdown from the Will County assessor's office or the county clerk's office. This breakdown shows you which taxing body is taking the largest share of your payment and can help you understand where your tax dollars go.

Tax rates change year to year because taxing bodies adjust their budgets and the total assessed value in the county shifts. A higher assessed value across the county can lower individual tax rates if the taxing body's budget stays the same. Conversely, a lower total assessed value can raise individual rates.

What to do if you think your assessed value is wrong

If you believe your property's assessed value is too high, you can file a complaint with the Will County Board of Review. The complaint must be filed within a specific window — usually 30 days after the assessment notice is mailed, though the exact important date is printed on the notice itself. Filing after the important date closes your right to challenge that year's assessment.

To file a complaint, you submit a form to the Board of Review office. The form asks for your parcel number, the assessed value you believe is correct, and the reason you think the assessor's value is wrong. You can support your complaint with recent appraisals, comparable sales data, or photographs of property damage or defects.

The Board of Review holds a hearing where you can present your case. You do not need a lawyer, though some people bring one. If the Board agrees your value is too high, they will lower it, and your tax bill for that year will be recalculated. If they deny your complaint, you have the right to appeal to the Illinois Property Tax Appeal Board, though that process has its own important date and filing fees.

Payment options and due dates

Will County property tax bills are due in two installments within the same calendar year. The first installment is typically due in June, and the second in September. Your bill shows both due dates clearly. If you pay late, a penalty is added to the unpaid amount — the penalty rate and the date it takes effect are stated on the bill.

You can pay by mail, in person at the Will County treasurer's office, or online through the county's payment system. The bill includes the mailing address and instructions for each method. Online payment usually processes within one to two business days, while mailed checks should arrive at least five business days before the due date to avoid a late penalty.

If you cannot pay the full amount by the due date, contact the Will County treasurer's office to ask about payment plans or hardship options. Some counties offer installment agreements, though availability and terms vary. Paying part of the bill by the due date is better than paying nothing, because the penalty applies only to the unpaid portion.

Homeowner exemptions and assessment freezes

Illinois offers a homeowner exemption that can lower your assessed value if you own and live in your home as your primary residence. The exemption reduces your assessed value by a set amount — the exact amount varies by county and year. To receive the exemption, you must file a form with the Will County assessor's office, usually by a important date in early summer.

Illinois also has a property tax freeze program for seniors and people with disabilities. If you are 65 or older or permanently disabled, you may be able to freeze your property tax bill at the amount you paid in a base year. Once frozen, your bill does not increase even if your assessed value or tax rates rise. You must meet income limits to may have access to, and you must file an process with the county assessor.

Both programs require you to take action — the exemption and freeze are not automatic. If you think you may may have access to, contact the Will County assessor's office for the forms and important date. Missing the filing important date means you lose the benefit for that year and must wait until the next filing period to explore.

Reading the itemized breakdown on your bill

The itemized section of your bill shows how much each taxing body is collecting. You will see separate lines for the school district, municipality, county, and any special districts. Each line shows that body's tax rate and the dollar amount you owe to that body.

The school district line is usually the largest, because schools are typically the biggest expense in a property tax bill. The municipality line covers city or village services. The county line funds county services. Special district lines might include a park district, library district, fire protection district, or other local service.

Adding all the individual amounts together gives you the total bill. If you want to know more about what any one taxing body does with the money, you can contact them directly — their contact information is often listed on the bill or available through the Will County assessor's office.

Frequently Asked Questions

Why did my property tax bill go up when I did not make any changes to my house?

Your bill can increase if your assessed value rose, if tax rates increased, or both. Assessed values change when the assessor updates their estimate of your property's market value, which happens on a schedule set by Will County. Tax rates change when taxing bodies adjust their budgets or when the total assessed value in the county shifts. You can request a breakdown showing which factor caused the increase.

Can I appeal my assessed value more than once?

You can file a complaint with the Board of Review each year if you believe your assessed value is wrong. Each year's assessment is treated separately. If the Board denies your complaint, you can appeal to the Illinois Property Tax Appeal Board, but that appeal applies only to that one year's assessment. You would need to file a new complaint the following year if your assessed value changes again.

What happens if I do not pay my property tax bill?

If you do not pay by the due date, a penalty is added to the unpaid amount. If you continue not to pay, the county can place a lien on your property and eventually foreclose. Contact the Will County treasurer's office as soon as you know you cannot pay — they may be able to work out a payment arrangement before penalties and interest accumulate further.

How do I find out what my property is worth for tax purposes?

Your assessed value is listed on your property tax bill. You can also contact the Will County assessor's office and ask for your property record card, which shows the assessed value, the assessment date, and details about your property that the assessor used in the valuation. Some counties post this information online through a searchable database.

Do I have to pay property taxes if I own my home outright with no mortgage?

Yes. Property taxes are owed by the property owner regardless of whether there is a mortgage. If you have a mortgage, your lender typically requires you to pay taxes as part of your monthly payment, but the obligation exists whether or not a lender is involved. Failure to pay results in penalties, liens, and potential foreclosure.