Illinois Historic Preservation Tax Credit.
Illinois provides a competitive state income-tax credit equal to 25% of qualified rehabilitation expenditures for approved certified historic rehabilitations.
Overview
What it does.
The active statewide credit can apply to a qualifying Chester building and is capped at $3 million per project. The project must complete the federal historic-rehabilitation certification process and compete in one of the state's two annual allocation rounds; the next round has not opened yet.
Best for: A substantial income-producing rehabilitation of a certified historic Chester building.
Eligibility
Who and what may qualify.
Eligible applicants
- Owners of certified historic structures undertaking certified rehabilitations and completing the required federal historic tax-credit review
Eligible uses
- Qualified rehabilitation expenditures for an approved certified historic rehabilitation
Uses excluded by the source
- Acquisition cost, site work, furnishings, and other costs excluded from qualified rehabilitation expenditures
Application
How to start.
- Contact IL SHPO before starting demolition or construction.
- Establish historic status and prepare the federal Part 1 and Part 2 materials.
- Follow the current round schedule for the mandatory S-1 workshop and the short S-2 and S-3 submission windows.
Timing: For 2026 Round 2, NPS Part 2 approval and participation in the S-1 workshop are required by August 19. Part S-2 accepts submissions only from 10:00 a.m. to 5:00 p.m. on August 26. Eligible S-2 applicants must submit Part S-3 by 5:00 p.m. on September 9, the final application deadline.
Planning notes
Limits to account for.
- Do not begin work that could jeopardize historic certification before review.
- A National Register listing alone does not guarantee project or credit approval.
May be paired with the federal historic credit when all program and financing rules are satisfied.
Evidence
Official sources.
- Illinois Historic Preservation Tax Credit ProgramIllinois State Historic Preservation Office · accessed 2026-07-10