What Will County property taxes pay for and how they're calculated
Will County property taxes fund schools, roads, police and fire departments, courts, and county services. Your tax bill is calculated by multiplying your home's assessed value by the tax rate set by your local taxing bodies — the school district, municipality, county, and any special districts like park or library districts that serve your address.
The assessed value is not the same as what you paid for the house or what it would sell for today. The Will County Assessor's Office determines assessed value, which is typically a percentage of market value set by state law. In Illinois, that percentage is 33.3% of fair market value, though the actual assessment process involves reviewing comparable sales and property characteristics in your area.
Your final tax bill combines levies from multiple taxing bodies. A single property might be taxed by the county, a township, a school district, a municipality, and a park district all at once. Each body sets its own tax rate, and all of them apply to your assessed value. This is why two houses with similar market values can have very different tax bills depending on their location within Will County.
Key Takeaways
- Will County property taxes are calculated by multiplying your home's assessed value (33.3% of market value) by tax rates set by your school district, municipality, county, and any special districts serving your address.
- The Will County Assessor's Office determines assessed value every three years through a reassessment cycle, and you can challenge the assessment if you believe it is inaccurate.
- Tax bills are mailed twice per year in Will County, with payments typically due in May and September, though exact dates depend on your municipality.
- Homeowners over 65, disabled homeowners, and low-income households may be may be able to access for property tax relief programs through the state or county.
- If you do not pay property taxes, the county can place a lien on your home and eventually foreclose, but you have time to work out a payment plan before that happens.
When and how to pay Will County property taxes
Property tax bills in Will County are mailed twice per year. The first installment is typically due in May, and the second is due in September. However, the exact due dates vary slightly by municipality within Will County, so check your bill or contact your local municipal treasurer's office for your specific dates.
You can pay by mail, in person at your municipality's treasurer's office, or online through your municipality's website if that option is available. Some municipalities accept payment through the Will County Treasurer's Office as well. Late payments usually trigger a penalty — typically 1.5% per month in Illinois — so paying on time matters financially.
If you cannot pay the full amount by the due date, contact your municipal treasurer or the Will County Treasurer's Office before the deadline. Many municipalities will work out a payment plan rather than immediately place a lien on your property. The sooner you contact them, the more options you typically have.
Understanding the Will County assessment cycle and how to challenge your assessment
The Will County Assessor's Office reassesses properties on a three-year cycle. This means your home is formally reassessed once every three years, though the Assessor's Office may update assessments between cycles if there is evidence of significant change — such as a major renovation or addition.
You receive a notice when your property is reassessed. If you believe the assessed value is too high, you can file a formal objection called a Complaint for Review of Assessment with the Will County Board of Review. The deadline to file is usually 30 days after the assessment notice is mailed, though you should verify the exact deadline on the notice itself or by contacting the Board of Review.
To file a complaint, you will need to provide evidence that the assessment is inaccurate — typically comparable sales of similar homes in your area, recent appraisals, or documentation of property condition issues. The Board of Review will review your complaint and may hold a hearing. If you disagree with the Board's decision, you can appeal to the Illinois Property Tax Appeal Board, though that process involves additional steps and deadlines.
Property tax relief programs for homeowners in Will County
Illinois offers several property tax relief programs for homeowners who meet income and age requirements. The Homestead Property Tax Relief Act provides a reduction in property taxes for homeowners over 65, disabled homeowners, and households with very low income. The amount of relief varies based on your household income and the amount of property tax you pay.
To claim homestead relief, you must file a claim with the Will County Assessor's Office. The deadline is typically in early March, though you should confirm the exact date with the Assessor's Office. You will need to provide proof of age or disability, proof of income, and proof of homeownership — usually a deed or property tax bill.
Will County also administers a Senior Citizen Assessment Freeze program that freezes the assessed value of your home if you are over 65 and meet income limits. Once your assessment is frozen, it does not increase even if your home's market value rises, which can provide significant savings over time. You must apply for this program as well, and income limits and application deadlines vary.
What happens if you do not pay property taxes
If property taxes go unpaid, the Will County Treasurer's Office will eventually place a tax lien on your property. A lien gives the county a legal claim against your home. The lien does not immediately remove you from your home, but it does mean the county has a right to be paid before you can sell the property or refinance a mortgage.
After a lien is placed, the county can begin the foreclosure process if taxes remain unpaid for a set period — typically three years in Illinois, though the exact timeline depends on state law and county procedures. Foreclosure means the county can force a sale of your home to recover the unpaid taxes and associated costs.
Before foreclosure happens, you have options. Contact the Will County Treasurer's Office or your municipal treasurer as soon as you know you cannot pay. Many municipalities will set up a payment plan, defer payment temporarily, or connect you with assistance programs. Acting early gives you far more control over the outcome than waiting until a lien is placed.
How to find your property tax information and bill online
You can look up property tax information for any Will County property through the Will County Assessor's Office website or the Will County Treasurer's Office website. Both sites have searchable databases where you can enter your address or parcel number and view your assessed value, tax history, and sometimes your current bill.
Your property tax bill is also mailed to you twice per year. If you do not receive a bill or need a copy, contact your municipal treasurer's office or the Will County Treasurer's Office. Some municipalities allow you to sign up for email notifications when bills are mailed or to view bills online through a portal.
If you own property in multiple municipalities within Will County, you will receive separate bills from each one. Keep all bills together so you do not miss a deadline, since late payments to any municipality trigger penalties on that specific bill.
Frequently Asked Questions
Can I pay my Will County property taxes online?
Many Will County municipalities allow online payment through their websites or through third-party payment processors. Check your tax bill for payment instructions, or contact your municipal treasurer's office to ask whether online payment is available in your area. Some municipalities charge a small processing fee for online payments.
What is the difference between assessed value and market value?
Market value is what your home would sell for on the open market today. Assessed value is 33.3% of that market value under Illinois law and is used to calculate your property taxes. A home worth $300,000 would have an assessed value of roughly $100,000, which is then multiplied by tax rates to determine your bill.
How do I know if my property is being reassessed?
The Will County Assessor's Office mails a notice when your property enters the reassessment cycle. You should receive this notice before the new assessment takes effect. If you do not receive a notice but believe your property should have been reassessed, contact the Assessor's Office directly to confirm your property's reassessment status and date.
What happens if I disagree with my property tax bill amount?
If you believe your tax bill is wrong because the assessed value is too high, you can file a Complaint for Review of Assessment with the Will County Board of Review within 30 days of receiving your assessment notice. If you believe the bill itself contains a calculation error unrelated to assessed value, contact your municipal treasurer's office to request a review.
Are there payment plans for people who cannot pay their full property tax bill?
Yes. Contact your municipal treasurer or the Will County Treasurer's Office before your payment deadline to discuss options. Many municipalities offer payment plans, and some may be able to connect you with assistance programs or defer payment temporarily. Acting before the deadline gives you the most flexibility.