Legislation: batch B — IL IN KS KY LA MA MD ME MI MN

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

legislation/us/states/il/101st/sb-1800.md

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+---
+type: "Bill"
+title: "INC TX-ESTIMATED TAX"
+description: "Amends the Illinois Income Tax Act. Provides that taxpayers (other than estates, trusts, partnerships, Subchapter S corporations, and farmers) are required to pay estimated tax if the amount payable can reasonably be expected to be more than $1,000 (currently, $500). Provides that corporations are required to pay estimated tax if the amount payable can reasonably be expected to be more than $400 (which is the same as current law). Effective immediately."
+jurisdiction: "us/states/il"
+legislature: "Illinois General Assembly"
+session: "101st"
+identifier: "SB 1800"
+citation: "Illinois SB 1800 (101st)"
+classification: ["bill"]
+subjects: []
+status: "enacted"
+primary_sponsors: []
+version_count: 3
+action_count: 24
+vote_count: 2
+first_action: "2019-02-15"
+last_action: "2019-08-09"
+source: "openstates"
+source_identifier: "ocd-bill/a760c959-beca-4151-84d6-6b34f86ff06e"
+source_url: "http://ilga.gov/legislation/BillStatus.asp?DocNum=1800&GAID=15&DocTypeID=SB&LegId=119287&SessionID=108&GA=101"
+source_hash: "47d6752ebd1ea4d2381f92ccbe1f6df6bcf166026256075154259bbbc030c686"
+vintage: "2026-07-01"
+source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
+retrieved_at: "2026-07-06"
+confidence: "reported"
+tags: ["legislation", "bill", "us-il"]
+---
+
+# Illinois SB 1800 (101st) — INC TX-ESTIMATED TAX
+
+Amends the Illinois Income Tax Act. Provides that taxpayers (other than estates, trusts, partnerships, Subchapter S corporations, and farmers) are required to pay estimated tax if the amount payable can reasonably be expected to be more than $1,000 (currently, $500). Provides that corporations are required to pay estimated tax if the amount payable can reasonably be expected to be more than $400 (which is the same as current law). Effective immediately.
+
+## Version chain
+
+The bill's text revisions, in order — the diff chain from filing to enrollment.
+
+1. **Introduced** (filed) — [source](http://ilga.gov/legislation/fulltext.asp?DocName=10100SB1800&GA=101&SessionId=108&DocTypeId=SB&LegID=119287&DocNum=1800&GAID=15&SpecSess=&Session=&print=true)
+2. **Engrossed** (committee substitute) — [source](http://ilga.gov/legislation/fulltext.asp?DocName=10100SB1800eng&GA=101&SessionId=108&DocTypeId=SB&LegID=119287&DocNum=1800&GAID=15&SpecSess=&Session=&print=true)
+3. **Enrolled** (enrolled) — [source](http://ilga.gov/legislation/fulltext.asp?DocName=10100SB1800enr&GA=101&SessionId=108&DocTypeId=SB&LegID=119287&DocNum=1800&GAID=15&SpecSess=&Session=&print=true)
+
+## Votes
+
+- Third Reading — **49–0** (pass) · upper
+- Third Reading — **113–0** (pass) · lower
+
+## Sponsors
+
+- Chapin Rose — primary (person)
+- Michael T. Marron — primary (person)
+
+## Timeline
+
+The legislative action history — every referral, reading, and vote.
+
+- **2019-02-15** Filed with Secretary by Sen. Chapin Rose `filing`
+- **2019-02-15** First Reading `reading-1`
+- **2019-02-15** Referred to Assignments `referral-committee`
+- **2019-02-27** Assigned to Revenue `referral-committee`
+- **2019-03-06** Do Pass Revenue; 007-000-000 `committee-passage`
+- **2019-03-06** Placed on Calendar Order of 2nd Reading
+- **2019-03-13** Second Reading `reading-2`
+- **2019-03-13** Placed on Calendar Order of 3rd Reading March 14, 2019
+- **2019-03-28** Third Reading - Passed; 049-000-000 `reading-3, passage`
+- **2019-03-28** Arrived in House `introduction`
+- **2019-03-28** Chief House Sponsor Rep. Michael T. Marron
+- **2019-03-28** First Reading `reading-1`
+- **2019-03-28** Referred to Rules Committee `referral-committee`
+- **2019-04-09** Assigned to Revenue & Finance Committee `referral-committee`
+- **2019-05-09** Do Pass / Short Debate Revenue & Finance Committee; 015-000-000 `committee-passage`
+- **2019-05-09** Placed on Calendar 2nd Reading - Short Debate
+- **2019-05-21** Second Reading - Short Debate `reading-2`
+- **2019-05-21** Placed on Calendar Order of 3rd Reading - Short Debate
+- **2019-05-23** Third Reading - Short Debate - Passed 113-000-000 `reading-3, passage`
+- **2019-05-23** Passed Both Houses
+- **2019-06-21** Sent to the Governor `executive-receipt`
+- **2019-08-09** Governor Approved `executive-signature`
+- **2019-08-09** Effective Date August 9, 2019
+- **2019-08-09** Public Act . . . . . . . . . 101-0355 `became-law`
+
+## Source
+
+OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/a760c959-beca-4151-84d6-6b34f86ff06e`. Confidence: reported (aggregated from official Illinois legislature records).
+