The Schaumburg Township Assessor’s office is a liaison to the Cook County Assessor’s office. The mission of the Assessor’s office is to assist Schaumburg Township residents with accurate and prompt service. Please note that we do not make final decisions on exemption approvals or appeal results. For assistance regarding property tax questions, please call the Assessor’s Office at 847-285-4570.
We Can Assist Residents With:
The Cook County Assessor’s Office deadline to file a 2025 property tax exemption was May 15, 2026.
Our office can still assist you with filing for your 2025 exemption(s) or with filing Certificates of Error for prior exemptions you may have not received. Please contact us for information regarding eligibility and requirements. PLEASE NOTE: If you have a mortgage, let them know that you applied for an exemption so your escrow can be adjusted.
**If you are a new homeowner, or born in 1960, or have recently been found disabled, please contact our office for exemption eligibility and requirements **
Homeowner Exemption
Senior Citizen Exemption
Senior Citizen Freeze Exemption
Persons With Disabilities Exemption
Veterans with Disabilities Exemption
**If you are a new homeowner, please contact us to determine exemption eligibility**
Certificate of Errors
If you apply for exemptions late after the Spring filing window has closed, it will be referred to as a “certificate of error”.
Once approved by the Cook County Assessor’s office, the certificate of error may result in either:
Cook County makes the determination if you will receive a corrected tax bill OR a refund check, not the Township.
The corrected tax bill can be paid at any Chase Bank.
Again, certificate of errors are delayed at the Cook County Treasurer. At this time, they have no time frame when this will be fixed.
Exemption Explanation Handouts
Our office assists residents with filing appeals with the Cook County Assessor and the Cook County Board of Review. This service is free and you do not need an attorney to appeal. Assessment appeals seek to reduce a properties assessed valuation by claiming that the assessment is unfair or inaccurate. The impact of the appeal will be seen on your 2nd installment tax bill of the following year. Triennial Reassessment Years – Every 3 years the Cook County reassesses properties based on recent sales. This is the only time you will receive a notice in the mail stating your new reassessed value. In the between years, you will not receive a notice from either the Cook County Assessor or Board of Review alerting you to an appeal time frame.
Cook County Assessor Appeal
The Cook County Assessor is responsible for assessing the properties in Cook County. The first opportunity to appeal is with the Cook County Assessor. The Assessor sets the initial value. If you feel there are errors regarding the characteristics of your home such as the number of baths, fireplaces, or change in construction type, garage size you can correct them during the Assessor appeal. However, keep in mind that these characteristics will not change your assessed value with the exception of building square footage changes. A plat of survey would be needed to prove a building square footage correction.
In the event of a fire or flood, we can assist with an appeal with the Assessor to reduce your assessed value from the time you are out of your home. An appeal can only be submitted during the Assessor appeals to adjust value as a result of a catastrophic event.
Cook County Board of Review
The Cook County Board of Review is a separate agency independent of the Cook County Assessor. This is the second opportunity to appeal. If you did appeal with the Assessor, you may still submit an appeal with the Board of Review. The Board of Review decision sets the final “county” valuation on the property for that tax year.
Let your mortgage company know if you are lowered after an appeal.
How to File an Appeal with the Assessor
The Township Assessor’s office assists taxpayers with filing an Assessor appeal during the filing window each year. Once that window opens, you may either come into the office or email (appeals@schaumburgtownship.org) with your name, address, phone number and property index number (found at the top right of your property tax bill). If you have a home, then we will try to find comparable properties that are lower in price per square foot and lower in assessed value than your home to include as evidence for an appeal.
If you own a condominium, it is best to appeal with your association. If they do not submit appeals, then we can help you. This does require coming into our office since you will have to sign an Appeal Narrative Affidavit. We will not be able to find comparables but will submit an appeal without them.
Please visit the Assessor’s office for information.
How to File an Appeal with the Board of Review
The Township Assessor’s office assists taxpayers with filing a Board of Review appeal during the filing window each year. Once that window opens, you may either come into the office or email (appeals@schaumburgtownship.org) with your name, address, phone number and property index number (found at the top right of your property tax bill). If you have a home, then we will try to find comparable properties that are lower in price per square foot and lower in assessed value than your home to include as evidence for an appeal.
While the Township Assessor’s Office does not determine the outcome of Assessor and/or Board of Review appeals, we want residents to know we are available as a resource to help explain and clarify the information included in appeal result letters.
A reduction from Assessor and/or Board of Review may help lower the property tax bill, but tax bills are also impacted by exemptions, local tax levies, and tax rates. Because of this, we are unable to estimate what a resident’s second installment tax bill will be based on as a result of appeal reductions.
Where do I see my exemptions?
What if I did not receive an exemption to which I was entitled?
Why is my neighbor’s tax bill less than mine?
How often are Schaumburg Township’s properties reassessed?
What if I think my assessment is too high?
How often can I appeal and is there a fee to appeal?
How many days do I have to file an appeal?
If I am successful with my appeal, where will that show?
I have questions about permits?
I have questions about doing a variance?
Cook County Assessor
Cook County Clerk – records and maintains deeds, property documents and business forms, assists property owners in redeeming delinquent taxes
Cook County Treasurer – print and mail tax bills, collect payments, name changes on Tax bill, refunds
Cook County Property Tax Portal – allow residents to have online access to comprehensive information about their properties
Cook County Board of Review (BOR)
Illinois Property Tax Appeal Board (PTAB) – Need to have filed an Appeal with Board of Review first; Township cannot help with this Appeal. You will need to contact the PTAB for more information.
Unincorporated Residents – Law states that an unincorporated area is a region of land that is not part of a municipality. Services should be directed to Cook County for resident complaints, concerns and questions regarding land and neighbor disputes.
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