---
type: "Bill"
title: "Revenue and taxation; income tax; income tax credit for qualified economic development expenditures; effective date."
description: "Revenue and taxation; income tax; income tax credit for qualified economic development expenditures; effective date."
jurisdiction: "us/states/ok"
legislature: "Oklahoma Legislature"
session: "2026"
identifier: "HB 4426"
citation: "Oklahoma HB 4426 (2026)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Hall", "Hilbert"]
version_count: 5
action_count: 22
vote_count: 4
first_action: "2026-02-02"
last_action: "2026-05-06"
source: "openstates"
source_identifier: "ocd-bill/71e47935-80b2-4a38-ac78-599e1bf3419d"
source_url: "http://www.oklegislature.gov/BillInfo.aspx?Bill=HB4426&session=2600"
source_hash: "9e8ff3e5f8d6c3929a9ab32ae319fba37b8989627120ec2ffd79731dcbcba09a"
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-ok"]
---

# Oklahoma HB 4426 (2026) — Revenue and taxation; income tax; income tax credit for qualified economic development expenditures; effective date.

## Version chain

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

1. **Introduced** (filed) — [source](https://www.oklegislature.gov/cf_pdf/2025-26 INT/hB/HB4426 INT.PDF)
2. **Engrossed** (committee substitute) — [source](https://www.oklegislature.gov/cf_pdf/2025-26 ENGR/hB/HB4426 ENGR.PDF)
3. **Enrolled (final version)** (committee substitute) — [source](https://www.oklegislature.gov/cf_pdf/2025-26 ENR/hB/HB4426 ENR.PDF)
4. **Floor (House)** (committee substitute) — [source](https://www.oklegislature.gov/cf_pdf/2025-26 FLR/HFLR/HB4426 HFLR.PDF)
5. **Floor (Senate)** (committee substitute) — [source](https://www.oklegislature.gov/cf_pdf/2025-26 FLR/SFLR/HB4426 SFLR.PDF)

## Votes

- Appropriations And Budget Committee: Do Pass — **29–0** (pass) · lower
- Do Pass — **7–2** (pass) · upper
- Third Reading — **76–20** (pass) · lower
- Third Reading — **28–14** (pass) · upper

## Sponsors

- Hall — primary (person)
- Hilbert — primary (person)

## Timeline

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

- **2026-02-02** First Reading `introduction, reading-1`
- **2026-02-02** Authored by Representative Hilbert
- **2026-02-03** Second Reading referred to Appropriations and Budget `reading-2, referral-committee`
- **2026-02-18** CR; Do Pass Appropriations and Budget Committee `committee-passage`
- **2026-02-24** General Order
- **2026-02-24** Coauthored by Representative(s) Hill
- **2026-02-24** Authored by Senator Hall (principal Senate author)
- **2026-02-24** Third Reading, Measure passed: Ayes: 76 Nays: 20 `passage, reading-3`
- **2026-02-24** Referred for engrossment
- **2026-02-25** Engrossed, signed, to Senate `passage`
- **2026-02-25** First Reading `introduction, reading-1`
- **2026-04-01** Second Reading referred to Revenue and Taxation `reading-2, referral-committee`
- **2026-04-06** Reported Do Pass Revenue and Taxation committee; CR filed `committee-passage`
- **2026-04-08** Placed on General Order
- **2026-04-29** General Order, Considered
- **2026-04-29** Measure passed: Ayes: 28 Nays: 14 `passage`
- **2026-04-29** Engrossed measure signed, returned to House `passage`
- **2026-04-30** Referred for enrollment
- **2026-04-30** Enrolled, signed, to Senate
- **2026-04-30** Enrolled measure signed, returned to House
- **2026-04-30** Sent to Governor `executive-receipt`
- **2026-05-06** Approved by Governor 05/05/2026 `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/71e47935-80b2-4a38-ac78-599e1bf3419d`. Confidence: reported (aggregated from official Oklahoma legislature records).