Environment
No direct effect
Neutral — no direct effect identified.
Benefits
- No material direct effect identified
Risks
- No material direct effect identified
StateIllinoisIntroduced
SB 3844: PTELL-AGGREGATE EXTENSION
Darby Hills
SB 3844 status: Introduced — Added as Co-Sponsor Sen. Paul Jacobs (updated Sep 2, 2026).
Source
LegiScan
Confidence
High
Analysis basis
LegiScan full bill text
01
What this bill does
Official summary alongside an AI-generated read on where it stands and why.
Overall Score
51OUT OF 100
Score:51/100 civic fit
Risk:Moderate Risk
Impact:High Impact 85/100
Constitutionality90%
Bipartisan50%
Public opinion70%
Bill summary
What changes
The bill amends the Property Tax Extension Limitation Law (PTELL) to change the annual inflation-based cap for property tax extensions to a 10-year average CPI (capped at 5%). It also introduces a new petition-based referendum process for voters to voluntarily reduce the aggregate extension base.
Who is affected
Taxpayers, local government units, school districts, and election authorities in Illinois counties currently subject to PTELL.
Requirements and enforcement
Taxing districts must adopt the 10-year rolling average for their extension limits. Taxing districts may now face citizen-initiated referendums for budget reductions, requiring updated ballot language and voter notice procedures.
Costs and funding
Administrative costs for local election authorities to manage petition verification and additional ballot questions. Potential lost revenue for local government units if referendums to reduce tax bases pass.
When it takes effect
Effective immediately upon becoming law; new extension limit calculation applies to the 2026 taxable year.
Potential benefits
Taxpayers gain direct control over property tax limits and a method to force fiscal restraint upon local taxing districts. Ballot language is standardized to ensure voters understand potential tax increases.
Risks and tradeoffs
Risk of significant and rapid reduction in local government capacity to fund core services, particularly in school and public safety sectors. Potential for instability in fiscal planning.
What is still unknown
The long-term impact of the 10-year CPI average on revenue growth compared to current annual CPI calculations is sensitive to specific inflation cycles, which are not currently predictable.
02
Impact analysis
✦ AI analysisModeled effects across six domains, estimated from bill text and comparable legislation.
Economy
Mixed / Neutral
55%
Benefits
- Limits rapid property tax growth for households
- Increases fiscal predictability for taxpayers
- Incentivizes local government efficiency
Risks
- Potential for revenue shortfalls in local taxing districts
- Risk of credit rating impacts for local governments
- Limits capacity for capital infrastructure investment
Society
Mixed / Neutral
45%
Benefits
- Provides cost-of-living relief for residents
- Empowers community participation in fiscal policy
- Increases transparency regarding property tax bills
Risks
- Risks funding levels for public school operations
- Potential for reduction in local recreational programming
- May exacerbate fiscal disparities between districts
Technology Industry
No direct effect
Neutral — no direct effect identified.
Benefits
- No material direct effect identified
Risks
- No material direct effect identified
Civic Accountability
Positive outlook
60%
Benefits
- Expands direct democracy via petition-based referendums
- Standardizes ballot information requirements
- Increases public oversight of taxing authorities
Risks
- Increases administrative burden on election officials
- Risk of complex fiscal policy being simplified for ballot
- Potential for low voter turnout impacting major budget decisions
Public Health & Safety
Mixed / Neutral
45%
Benefits
- Forces prioritization of resources in safety departments
- Provides voter check on public safety tax growth
- Encourages leaner public safety administrative practices
Risks
- Potential constraints on staffing for police and fire
- Risk of delayed facility maintenance for safety sites
- Challenges for planning long-term public health initiatives
03
How trustworthy & consequential it is
Sourcing already shown above, this is what the analysis found worth flagging.
Source
LegiScan
Official bill text or data from LegiScan.
Confidence
High
Information is complete and verified.
Analysis basis
LegiScan full bill text
Source used for this bill's analysis.
Source note
The bill introduces significant fiscal risk for local government operations that rely heavily on property tax revenue.
Analysis scope
The 10-year CPI average formula may behave differently than annual CPI depending on prior inflation cycles.
04
Where it stands
Official record- IntroducedCurrent
- CommitteeUpcoming
- Chamber votesUpcoming
- Final agreementUpcoming
- GovernorUpcoming
- EnactedUpcoming
05
How it affects your district
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06
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