This exemption lasts up to four years. Application Due Date: No application is required.A property tax exemption is like a discount applied to your EAV. If you qualify for an exemption, it allows you to lower your EAV. To qualify for the Illinois homestead exemption, you must live in the state for at least 730 days. If you qualify for a homestead exemption, you can protect yourself from bankruptcy, property taxes and creditors. The applicant must have owned and occupied the property as of January 1 and must have been 65 years of age or older during the tax year in question. Link to obtain further information about the various exemptions that are offered, the documents and filing process required for each exemption to be claimed. The exemption is available to owners of single-family homes, condominiums, cooperatives, and apartment buildings with up to six units. Most states' homestead exemption laws apply strictly to the homeowner's primary residence.