Cook County Class 7a Property Tax Incentive
Cook County reduces property tax assessments for small commercial projects to encourage new construction, substantial rehabilitation, or reoccupancy of abandoned commercial buildings.
Check an Address — Free Snapshot
See whether a specific Chicago address sits inside the area that unlocks Cook County Class 7a Property Tax Incentive, alongside every other incentive that touches that parcel.
Commercial property owners or developers with total project costs under $2 million. Covers new construction, substantial rehab, or reoccupancy of abandoned commercial property in Cook County.
Cook County Class 7a Property Tax Incentive is administered at the county level. Depending on the program, eligibility may depend on the specific location, property type, or business activity rather than a single drawn boundary.
Boundaries are precise and change over time, so exact eligibility always depends on the specific address. The fastest way to know is to run a free snapshot for the parcel you have in mind.
Typical range · 10% assessment (vs. 25%) for 10 years
- +Property assessed at 10% (vs. standard 25%) for years 1-10
- +15% in year 11, 20% in year 12
- +12-year incentive period, renewable
- +Significant annual property tax savings
- 1Contact your alderman's office for a municipal support letter
- 2File application with the Cook County Assessor's Office
- 3Submit project plans and cost documentation
- 4Assessor reviews and approves classification
Call Cook County Assessor at (312) 443-7550
- Municipal resolution of support from alderman/city council
- Project plans and cost estimates (under $2M)
- Proof of property ownership
- Building permits or renovation plans
This page is a starting point, not eligibility, legal, or tax advice. Verify current requirements, deadlines, and boundaries with the administering agency before applying or spending money — program rules and funding change over time.
- Municipal resolution of support — Chicago City Council (or host municipality)
Required before Class 7a application can be approved.
- Cook County Assessor Incentive Filing — Cook County Assessor's Office
- Phone
- (312) 443-7550
- Web
- Visit site ↗
Last verified 2026-05-21
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