# Illinois HB4010: PROP TX-EXTENSIONS

Illinois HB4010, PROP TX-EXTENSIONS, is a 104th General Assembly (2025–2026) House bill sponsored by Tom Weber (Republican); status in committee, last action 2025-03-18 (Added Co-Sponsor Rep. Kevin Schmidt) (as of 2026-11-01).

- Canonical: https://policyrisk.com/state-bill/IL-HB4010-2025-2026
- As of: 2026-11-01
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Bill: Illinois HB4010
- State: Illinois
- Session: 104th General Assembly (2025–2026)
- Title: PROP TX-EXTENSIONS
- Status: in committee
- Chamber: House
- Introduced: 2025-03-03
- Last action: 2025-03-18, Added Co-Sponsor Rep. Kevin Schmidt
- Sponsor: Tom Weber (Republican)
- Cosponsors: 1
- Touches household money: no
- Economic provisions PRIA read: 0

## Summary

Amends the Property Tax Code. Provides that, beginning in taxable year 2026, no taxing district, other than a home rule unit, may levy a tax on any parcel of real property that is more than 105% of the base amount unless (i) the increase is attributable to substantial improvements to the property, (ii) the taxing district did not levy a tax against the property in the previous taxable year, or (iii) the increase is attributable to a special service area. Provides that "base amount" means the tax levied by the taxing district on the subject property in the immediately preceding taxable year, except that, if the property received a homestead exemption in the immediately preceding taxable year and is not eligible for that exemption in the current taxable year, then the base amount shall be the tax that would have been levied by the taxing district on the subject property in the immediately preceding taxable year if the homestead exemption had not been applied. Provides that a taxing district may elect to be exempt from those provisions for one or more taxable years if the exemption is approved by referendum. Effective immediately.

## Bill overview

No economic impacts identified for this bill.

## Sponsors and cosponsors

- Sponsor: Tom Weber (Republican), House
- Cosponsor: Kevin Schmidt (Republican), House

## Actions (4)

- 2025-03-18: Added Co-Sponsor Rep. Kevin Schmidt (House)
- 2025-03-04: Referred to Rules Committee (House)
- 2025-03-04: First Reading (House)
- 2025-03-03: Filed with the Clerk by Rep. Tom Weber (House)

## Bill text

- Introduced: [PDF](https://www.ilga.gov/documents/legislation/104/HB/PDF/10400HB4010.pdf)

## Related bills

- HB5198: AFFORDABLE HOUSING-CILAS (passed house)
- SB1937: PENSION CODE-VARIOUS (passed senate)
- HB2563: CONDO-RESERVE STUDY (in committee)
- HB4701: LIMITATIONS FACILITY FEES ACT (in committee)
- SB3008: DHS-ABLE PROGRAM INFO MATERIAL (passed senate)
- SB3484: VEH CD-PLATES-REGISTRATION (signed)

## Sources
- [Introduced (PDF)](https://www.ilga.gov/documents/legislation/104/HB/PDF/10400HB4010.pdf)

## Related
- [HB5198: AFFORDABLE HOUSING-CILAS](https://policyrisk.com/state-bill/IL-HB5198-2025-2026)
- [SB1937: PENSION CODE-VARIOUS](https://policyrisk.com/state-bill/IL-SB1937-2025-2026)
- [HB2563: CONDO-RESERVE STUDY](https://policyrisk.com/state-bill/IL-HB2563-2025-2026)
- [HB4701: LIMITATIONS FACILITY FEES ACT](https://policyrisk.com/state-bill/IL-HB4701-2025-2026)
- [SB3008: DHS-ABLE PROGRAM INFO MATERIAL](https://policyrisk.com/state-bill/IL-SB3008-2025-2026)
- [SB3484: VEH CD-PLATES-REGISTRATION](https://policyrisk.com/state-bill/IL-SB3484-2025-2026)
- [Illinois bills](https://policyrisk.com/states/illinois/bills)
- [Illinois state hub](https://policyrisk.com/states/illinois)
- [All state legislation](https://policyrisk.com/state-bills)

Source: PRIA, https://policyrisk.com/state-bill/IL-HB4010-2025-2026 (as of 2026-11-01).