Bill
SB 1644
Illinois SB 1644 requires TIF dollar allocations and a no-TIF revenue view on property tax bills, boosting transparency about TIF impacts for taxpayers and districts.
Status
- Jurisdiction: Illinois
- Statute amended: 35 ILCS 200/20‑15 (Property Tax Code)
- Action: Passed both chambers and signed by the Governor (6/20/2025)
- Effective date: September 1, 2025
- Companion: HB 3021
Purpose / Intent
SB 1644 increases transparency around tax increment financing (TIF) districts by requiring information related to TIF allocations to be printed on (or enclosed with) property tax bills. The goal is to let taxpayers see how much of their tax bill is allocable to TIF districts and how TIFs affect revenues for overlapping taxing districts.
Key provisions
- New required line items on tax bills (added to Section 20‑15):
- (b‑5) A list of each TIF district in which the property is located and the dollar amount of tax due that is allocable to each such TIF district.
- (b‑6) For each TIF district in which the property is located, a statement setting forth the amount that each taxing district that contains all or part of the TIF district would have received for the taxable year if the TIF district did not exist (i.e., a hypothetical absence‑of‑TIF allocation).
- Delivery format: The information must be printed on the bill or on a separate slip mailed with the bill (consistent with existing requirements for other tax bill disclosures).
- County treasurers must ensure only taxing districts that actually contain the parcel are listed on the bill.
- Existing bill‑content requirements (assessment, exemptions, rates, total tax due, etc.) remain in place. For counties using estimated/accelerated billing methods, certain statements are provided with the final installment as under current law.
Who is affected
- Taxpayers: will receive more detailed information on TIF charges and the hypothetical revenue distribution absent TIFs, increasing transparency about how TIFs affect local taxing bodies.
- County treasurers/collectors: responsible for producing and mailing tax bills that include the new TIF-related disclosures; may need to modify billing systems and calculation procedures.
- Local taxing districts and municipal governments: greater public visibility into the revenue effects of TIF districts in their jurisdictions.
- No changes to tax rates or to the mechanics of TIF financing itself are made by this bill.
Implementation and impact
- Effective Sept 1, 2025; applicable to tax bills issued after implementation. Counties will need to compute and display the dollar amounts allocable to TIF districts and the counterfactual distribution “in the absence of the TIF.”
- Fiscal impact: The law itself does not alter taxing authority or revenue streams. It is primarily administrative — potential one‑time or ongoing costs to counties for software/IT and staff time to generate the new line items and required calculations. Benefits are increased transparency for taxpayers and local officials.
Practical effect
- Tax bills will show both the amount of tax dollars going into a TIF for the parcel and an indication of what each affected taxing body would have received that year if the TIF had not been in place, enabling taxpayers and policymakers to better understand TIF-driven revenue shifts.
Compiled from official sources — confirm details with the bill’s official record.
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