---
type: "Bill"
title: "TAX/FRANCHISE/CORPORATE: Extends the sunset of the research and development tax credit. (Item #19) (1/1/21) (EN -$1,000,000 GF RV See Note)"
description: "TAX/FRANCHISE/CORPORATE: Extends the sunset of the research and development tax credit. (Item #19) (1/1/21) (EN -$1,000,000 GF RV See Note)"
jurisdiction: "us/states/la"
legislature: "Louisiana Legislature"
session: "2020s1"
identifier: "SB 4"
citation: "Louisiana SB 4 (2020s1)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Franklin J. Foil"]
version_count: 4
action_count: 16
vote_count: 2
first_action: "2020-06-01"
last_action: "2020-07-13"
source: "openstates"
source_identifier: "ocd-bill/0e191b3b-3bc8-4aaa-ad00-63a8c2a50cf0"
source_url: "http://www.legis.la.gov/Legis/BillInfo.aspx?i=239111"
source_hash: "ff942b64883ca55caf520899008e65a248b89c64d6e5daeef0c840836e6956d4"
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-la"]
---

# Louisiana SB 4 (2020s1) — TAX/FRANCHISE/CORPORATE: Extends the sunset of the research and development tax credit. (Item #19) (1/1/21) (EN -$1,000,000 GF RV See Note)

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **SB4 Original** (filed) — [source](http://www.legis.la.gov/Legis/ViewDocument.aspx?d=1178748)
2. **SB4 Act** (committee substitute) — [source](http://www.legis.la.gov/Legis/ViewDocument.aspx?d=1185911)
3. **SB4 Engrossed** (committee substitute) — [source](http://www.legis.la.gov/Legis/ViewDocument.aspx?d=1180039)
4. **SB4 Enrolled** (enrolled) — [source](http://www.legis.la.gov/Legis/ViewDocument.aspx?d=1183046)

## Votes

- FINAL PASSAGE (#81) — **92–0** (pass) · lower
- FINAL PASSAGE (#20) — **30–0** (pass) · upper

## Sponsors

- Franklin J. Foil — primary (person)
- Francis C. Thompson — cosponsor (person)
- Matthew Willard — cosponsor (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2020-07-13** Effective date 1/1/2021.
- **2020-07-13** Signed by the Governor. Becomes Act No. 13. `executive-signature`
- **2020-06-29** Sent to the Governor by the Secretary of the Senate. `executive-receipt`
- **2020-06-23** Signed by the Speaker of the House.
- **2020-06-22** Enrolled. Signed by the President of the Senate.
- **2020-06-19** Received from the House without amendments.
- **2020-06-18** Read third time by title, roll called on final passage, yeas 92, nays 0. Finally passed, ordered to the Senate. `passage`
- **2020-06-17** Scheduled for floor debate on 06/18/20.
- **2020-06-17** Read by title, passed to 3rd reading.
- **2020-06-16** Reported without Legislative Bureau amendments.
- **2020-06-15** Reported favorably (12-0). Referred to the Legislative Bureau.
- **2020-06-11** Read by title, under the rules, referred to the Committee on Ways and Means. `referral-committee`
- **2020-06-10** Received in the House from the Senate, read by title, lies over under the rules.
- **2020-06-10** Read by title, passed by a vote of 30 yeas and 0 nays, and sent to the House. Motion to reconsider tabled. `passage`
- **2020-06-09** Reported favorably. Rules suspended. Read by title; ordered engrossed and passed to third reading and final passage.
- **2020-06-01** Introduced in the Senate; read by title. Rules suspended. Read second time and referred to the Committee on Revenue and Fiscal Affairs. `referral-committee`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/0e191b3b-3bc8-4aaa-ad00-63a8c2a50cf0`. Confidence: reported (aggregated from official Louisiana legislature records).