CSIM
Incentive Program

Cook County Class 8a MICRO (Semiconductor)

County10% assessment for 30 years (stacks with state MICRO + federal §48D)
What it is

Class 8 variant calibrated for semiconductor and microchip manufacturing investments. Connects to the State of Illinois MICRO program and federal CHIPS Act incentives.

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 8a MICRO (Semiconductor). 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

  • Semiconductor / microchip / advanced manufacturing
  • Property in Cook County
Where it applies

Cook County Class 8a MICRO (Semiconductor) 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 30 years (stacks with state MICRO + federal §48D)

Current published terms as of 2026-08-09

  • +10% assessment level for 30 years (vs. 25%), running from the later of construction completion or submission of an executed Class 8 MICRO agreement
  • +Stacks effectively with state MICRO credit and federal §48D ITC
  • +Not renewable
How to apply
  1. 1Coordinate with the Cook County Assessor and DCEO MICRO team early
  2. 2Obtain municipal resolution
  3. 3File Class 8a application with semiconductor industry documentation
Fastest first move

Call Assessor Incentives at (312) 603-7529 to scope 8a MICRO

What you'll need
  • Municipal resolution
  • Semiconductor manufacturing NAICS documentation
  • Investment plan and equipment schedule
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)
Phone
(312) 603-7529
Web
Visit site ↗

Last verified 2026-08-09

Start with an address

Check an Address — Free Snapshot

Try:
Browse ProgramsExplore Map
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