Legislation: batch E — CA TN VA VT WA WI WV WY

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

legislation/us/states/wi/2021/ab-18.md

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+---
+type: "Bill"
+title: "Relating to: adopting federal law changes to extend the time for filing individual income tax returns."
+description: "Relating to: adopting federal law changes to extend the time for filing individual income tax returns."
+jurisdiction: "us/states/wi"
+legislature: "Wisconsin Legislature"
+session: "2021"
+identifier: "AB 18"
+citation: "Wisconsin AB 18 (2021)"
+classification: ["bill"]
+subjects: []
+status: "enacted"
+primary_sponsors: ["Callahan", "Dittrich", "Drake", "Duchow", "Gundrum", "Haywood", "Horlacher", "Katsma", "Kitchens", "Knodl", "Kuglitsch", "Macco", "Moses", "Mursau", "Oldenburg", "Ramthun", "Skowronski", "Snyder", "Steffen", "Subeck", "Wittke", "Zimmerman"]
+version_count: 2
+action_count: 35
+vote_count: 2
+first_action: "2021-01-29T06:00:00+00:00"
+last_action: "2021-05-21T05:00:00+00:00"
+source: "openstates"
+source_identifier: "ocd-bill/7a2be8f7-2c81-44a5-a07e-4afb117c3861"
+source_url: "https://docs.legis.wisconsin.gov/2021/proposals/reg/asm/bill/ab18"
+source_hash: "eeab9b341cdaca5c9de1b038e4478cd2265417dc21de20f712b3ef509f064b4d"
+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-wi"]
+---
+
+# Wisconsin AB 18 (2021) — Relating to: adopting federal law changes to extend the time for filing individual income tax returns.
+
+## Version chain
+
+The bill's text revisions, in order — the diff chain from filing to enrollment.
+
+1. **Assembly Substitute Amendment 2** (committee substitute) — [source](https://docs.legis.wisconsin.gov/document/amends/2021/REG/AB18-ASA2)
+2. **Bill Text** (committee substitute) — [source](https://docs.legis.wisconsin.gov/document/proposaltext/2021/REG/AB18)
+
+## Votes
+
+- Senate Amendment 1 laid on table, Ayes 22, Noes 11 — **22–11** (pass) · upper
+- Report passage recommended by Committee on Ways and Means, Ayes 12, Noes 0 — **12–0** (pass) · lower
+
+## Sponsors
+
+- Callahan — primary (person)
+- Dittrich — primary (person)
+- Drake — primary (person)
+- Duchow — primary (person)
+- Gundrum — primary (person)
+- Haywood — primary (person)
+- Horlacher — primary (person)
+- Katsma — primary (person)
+- Kitchens — primary (person)
+- Knodl — primary (person)
+- Kuglitsch — primary (person)
+- Macco — primary (person)
+- Moses — primary (person)
+- Mursau — primary (person)
+- Oldenburg — primary (person)
+- Ramthun — primary (person)
+- Skowronski — primary (person)
+- Snyder — primary (person)
+- Steffen — primary (person)
+- Subeck — primary (person)
+- Wittke — primary (person)
+- Zimmerman — primary (person)
+
+## Timeline
+
+The legislative action history — every referral, reading, and vote.
+
+- **2021-01-29T06:00:00+00:00** Introduced by Representatives Macco, Callahan, Dittrich, Drake, Duchow, Gundrum, Haywood, Horlacher, Katsma, Kitchens, Knodl, Kuglitsch, Moses, Mursau, Oldenburg, Ramthun, Skowronski, Snyder, Steffen, Wittke, Zimmerman and Subeck; cosponsored by Senators Kooyenga, Ballweg, Carpenter, Cowles, Felzkowski, Feyen, Marklein, Nass, L. Taylor and Wanggaard `introduction`
+- **2021-01-29T06:00:00+00:00** Read first time and referred to Committee on Ways and Means `reading-1, referral-committee`
+- **2021-02-02T06:00:00+00:00** Representative Wichgers added as a coauthor
+- **2021-03-02T06:00:00+00:00** Public hearing held
+- **2021-03-18T05:00:00+00:00** Executive action taken
+- **2021-03-25T05:00:00+00:00** Report passage recommended by Committee on Ways and Means, Ayes 12, Noes 0 `committee-passage-favorable`
+- **2021-03-25T05:00:00+00:00** Referred to committee on Rules `referral-committee`
+- **2021-04-08T05:00:00+00:00** Placed on calendar 4-13-2021 by Committee on Rules
+- **2021-04-12T05:00:00+00:00** Assembly Substitute Amendment 1 offered by Representatives Wittke and Macco
+- **2021-04-12T05:00:00+00:00** Representative Spreitzer added as a coauthor
+- **2021-04-13T05:00:00+00:00** Placed at the foot of the calendar of 4-13-2021
+- **2021-04-13T05:00:00+00:00** Read a second time `reading-2`
+- **2021-04-13T05:00:00+00:00** Assembly Substitute Amendment 2 offered by Representatives Wittke and Macco
+- **2021-04-13T05:00:00+00:00** Assembly Substitute Amendment 2 adopted `amendment-passage`
+- **2021-04-13T05:00:00+00:00** Ordered to a third reading `reading-3`
+- **2021-04-13T05:00:00+00:00** Rules suspended
+- **2021-04-13T05:00:00+00:00** Read a third time and passed `passage, reading-3`
+- **2021-04-13T05:00:00+00:00** Representative Bowen added as a coauthor
+- **2021-04-13T05:00:00+00:00** Ordered immediately messaged
+- **2021-04-14T05:00:00+00:00** Received from Assembly `receipt`
+- **2021-04-14T05:00:00+00:00** Read first time and referred to committee on Senate Organization `referral-committee`
+- **2021-04-14T05:00:00+00:00** Available for scheduling
+- **2021-05-07T05:00:00+00:00** Placed on calendar 5-11-2021 pursuant to Senate Rule 18(1)
+- **2021-05-11T05:00:00+00:00** Senate Amendment 1 offered by Senator Carpenter
+- **2021-05-11T05:00:00+00:00** Read a second time `reading-2`
+- **2021-05-11T05:00:00+00:00** Senate Amendment 1 laid on table, Ayes 22, Noes 11 `deferral`
+- **2021-05-11T05:00:00+00:00** Ordered to a third reading `reading-3`
+- **2021-05-11T05:00:00+00:00** Rules suspended
+- **2021-05-11T05:00:00+00:00** Read a third time and concurred in `passage, reading-3`
+- **2021-05-11T05:00:00+00:00** Ordered immediately messaged
+- **2021-05-11T05:00:00+00:00** Received from Senate concurred in `receipt`
+- **2021-05-14T05:00:00+00:00** Report correctly enrolled on 5-14-2021 `enrolled`
+- **2021-05-20T05:00:00+00:00** Presented to the Governor on 5-20-2021 `executive-receipt`
+- **2021-05-21T05:00:00+00:00** Report approved by the Governor on 5-21-2021. 2021 Wisconsin Act 40 `executive-signature`
+- **2021-05-21T05:00:00+00:00** Published 5-22-2021 `became-law`
+
+## Source
+
+OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/7a2be8f7-2c81-44a5-a07e-4afb117c3861`. Confidence: reported (aggregated from official Wisconsin legislature records).
+