Riverside Township residents can now file property tax appeals with the Cook County Assessor’s Office. The deadline to file an appeal with Cook County is April 1, 2024 by 11:59 pm.
The Cook County Assessor now requires all appeals to be filed online through their website, here: https://www.cookcountyassessor.com/online-appeals. Property owners who have a computer and internet access are able to file an online appeal by themselves from home. Residents who do not have a computer, or need assistance with filing their appeal online, can contact the Riverside Township Assessor for assistance at (708) 447-7700, or via email at: assessor@riversidetownship.org. Please include your name, address, and phone number in your email. You can also schedule an in-person appointment with the Township Assessor; office hours during the appeal period are Monday – Friday, from 9:00 am until 3:00 pm. After hours and evening appointments are available upon request.
The Riverside Township Assessor offers free assistance to residents with their appeals process. The Township Assessor is here to:
- Help property owners determine the best reason to file an appeal
- Provide comparable properties to support a case of lack of uniformity
- Make sure supporting evidence and documentation is complete
- Assist new homeowners with first time appeals with in-person appointments
If you think your residential property is over assessed and would like the Township Assessor to send you comparable properties along with online filing directions, please send them an email. If you purchased your home after January 1, 2022, and your current assessed value is greater than 10% of your purchase price, then you should send the Township Assessor an email as well.
Reasons to file an appeal:
- Lack of uniformity – your property is assessed higher than other properties in your neighborhood of similar size, style, and construction.
- Market value – the Assessor’s market value is higher then the property’s actual market value if the property was purchased after January 1, 2022.
- Error in description of property – such as incorrect square feet of living space.
- Uninhabitable – your property was uninhabitable for all or part of the year due to fire or flood damage.

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