How To Lower Property Taxes In Illinois
Property taxes in Illinois are among the highest in the nation, but homeowners have several options to reduce their tax burden. From appealing your property assessment to applying for exemptions and relief programs, understanding how the system works can help you save money and avoid overpaying.
Read on for more information from McHenry, Illinois real estate attorney Adam Diamond.
Challenging Your Property Assessment
Property taxes are based on the market value of your property, which is determined on the basis of similar properties in the area or the land value plus the cost of rebuilding the structure.
Once your county assessor assesses your property, they will send you a notice detailing the newly assessed value of your property. You have 30 days after the assessment is published to file an appeal of the assessment. If you fail to file an appeal by the stated deadline, you will almost certainly lose any legal recourse to challenge the property assessment.
You may base your appeal on one of the two suppositions:
- The assessed value is higher than the actual market value—you may be able to support this if you recently bought a similar property in the area or had a professional appraisal.
- The assessed value is higher than the local market—if the assessment is based on flawed information like property dimensions or materials, or if nearby properties are significantly lower in value, then an appeal may be valid.
You may make an informal appeal by speaking to a county assessment officer or the township assessor but to actually dispute your assessment a formal complaint must be made in writing before the deadline. Only a formal appeal will serve as a basis for an additional appeal to the State Property Tax Appeal Board or the circuit court.
General Property Tax Reduction Strategies
Reducing property taxes begins with understanding how your property is assessed for valuation. Regularly reviewing your assessment for inaccuracies can prevent overpayment. Even minor errors—such as incorrect square footage or misclassified improvements—can influence your tax burden.
Consider carefully the timing of any major home updates. Projects such as room additions or new structures may increase the assessed value, while energy-efficient upgrades may qualify for incentives. Strategic planning around improvements can help in reducing property taxes without sacrificing comfort or value.
It’s also worth exploring local and state-level initiatives that aim to assist homeowners. Programs focused on community development, conservation, or senior homeowners often provide unique opportunities for savings. Consulting with a tax professional or local assessor can help identify which property tax strategies best apply to your situation.
Additional Property Tax Relief Programs
Many states offer targeted property tax relief programs to assist homeowners facing financial challenges. These programs vary widely but often support seniors, individuals with disabilities, and low-income residents who meet the qualifications. Specific relief options may also be available to veterans and surviving spouses, offering them meaningful financial flexibility.
Some property tax relief programs are income-based, while others hinge on age or disability status. Homeowners should contact their local tax assessor’s office to verify their eligibility and confirm the necessary documentation requirements. Staying proactive ensures timely enrollment in programs that provide lasting benefits, particularly when cost-of-living adjustments or new relief legislation is enacted.
Filing for a Homestead Exemption
Another way to lower your property taxes is to apply for a homestead exemption, which would result in a reduction in your property’s assessed value and, in turn, in the amount of property tax. The following are homestead exemptions in Illinois:
- Homeowner exemption—if you live in the property, which may be a single family home, condominium, or co-op, as your primary residence, you may qualify for this exemption for $6,000 off of the assessed value ($18,000 off the fair market value). If approved, the homeowner exemption should remain in effect every year you own the property.
- Senior citizen homestead exemption—if you are aged 65 or older and live on the property as your primary residence, you may qualify for a $5,000 reduction in the assessed value ($15,000 off the fair market value). In most counties, once you receive this exemption, you will not need to re-apply for this exemption every year.
- Senior citizen freeze exemption—This exemption basically “freezes” the assessed value of the property as of the date it is approved. It usually requires that the owner or occupant: be a senior citizen with an annual household income of $65,000 or less, have owned and occupied the home during the applicable tax year (the year before the bill is published), and is responsible for the real estate taxes for the applicable tax year. This exemption freezes the assessed value but not the entire tax bill. If the tax rates change the tax bill can still increase.
- Homestead Exemption for Persons with Disabilities—if you have a disability and live in the owned property as a primary residence, you may qualify for this exemption that would lower the assessed value. Many Counties require you to apply for this exemption every year.
- Homestead Improvement Exemption—this exemption allows you to reduce the assessed value by the amount spent on improving or rebuilding a homestead property multiplied by 33 1/3 percent. You may apply this exemption annually for four years following completion of the work.
NOTE: All assessment values and amounts in this blog are correct as of the date of publication of this blog. These values and amounts can change. If you need to know the exact amount of any exemption or number stated in this blog, it is always best to contact your local County Assessor’s Office.
Exemptions Beyond Homestead
While homestead exemptions are among the most common, several additional property tax exemptions may be available to specific groups. These can include exemptions for surviving spouses, military personnel, or those supporting dependents with disabilities. Each exemption type carries specific qualifications and documentation guidelines.
Local governments periodically expand exemption categories to accommodate the evolving needs of their communities. Reviewing available benefits regularly helps ensure no opportunities for savings are missed.
Property Tax Caps & Freeze Programs
Property tax caps and freeze programs are designed to stabilize tax bills, particularly for long-term or fixed-income homeowners. A tax cap restricts how much assessed values can increase annually, while a freeze locks in your assessment at a specific level once you qualify.
Many jurisdictions offer property tax freeze programs for seniors, veterans, and people with disabilities. These programs prevent sharp increases in taxes despite rising home values, helping maintain financial predictability. Staying informed about eligibility timelines and renewal requirements ensures continued protection under these provisions.
Appealing Property Tax Assessments
If your tax bill seems higher than expected, filing property assessment appeals may help correct overvaluation. This process allows homeowners to challenge their property’s assessed value and present supporting evidence such as recent sales or comparable assessments.
When preparing property assessment appeals, homeowners should gather appraisal reports, photos, and relevant market data. Most counties set strict deadlines and procedural rules, so prompt action is essential. Even minor adjustments following an appeal can lead to long-term savings.
Let Diamond Real Estate Law Help
As one of McHenry’s trusted real estate law firms, Diamond Real Estate Law helps people with the legal part of selling or buying their home. If you are thinking of buying or selling your home let’s get started working together. Contact us today.