CSIM
Incentive Program

Cook County Class 7b Commercial Property Tax Incentive

County10% assessment for 10 years, then 15% / 20%
What it is

Same 12-year reduced assessment as 7a but for commercial projects with total costs over $2 million, in areas in need of commercial development.

Start with an address

Check an Address — Free Snapshot

Compare the geocoded point for a Chicago address with the boundary used to screen Cook County Class 7b Commercial Property Tax Incentive. A match is a location signal; review the current program source for the boundary's role and remaining criteria.

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Who it's for

Published criteria — confirm with Cook County Assessor's Office — Incentives

  • Property in a municipally-designated 'area in need of commercial development'
  • Commercial property — new construction, rehab, or reoccupancy
  • Total project costs over $2 million
Where it applies

Cook County Class 7b Commercial 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 whether a specific address falls inside a mapped zone always depends on that exact address. The fastest way to check is to run a free snapshot for the parcel you have in mind — mapped coverage is a location signal, not an eligibility determination.

What it can support

Range on file · 10% assessment for 10 years, then 15% / 20%

Current published terms as of 2026-08-09

  • +10% assessment years 1-10 (vs. 25%)
  • +15% year 11, 20% year 12
  • +Renewable for additional terms
  • +Typically used for large mixed-use, retail center, or commercial redevelopment projects
How to apply
  1. 1Secure a municipal resolution finding the area is in need of commercial development
  2. 2File Class 7b Eligibility Application with the Assessor before commencement
  3. 3Document that the project would not be economically feasible without the incentive ('but-for' finding)
  4. 4File final Incentive Application post-completion
Fastest first move

Call Assessor Incentives at (312) 603-7529 to scope 7b qualification

What you'll need
  • Municipal resolution with 'area in need' and 'but-for' findings
  • Project pro forma demonstrating need for the incentive
  • Construction budgets exceeding $2M
  • Plans, permits, and cost certifications
What to verify

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.

Official source & contacts
Official program source ↗
Cook County Assessor's Office — Incentives (CCAO)

Last verified 2026-08-09

Start with an address

Check an Address — Free Snapshot

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