---
type: "Bill"
title: "Disclosure of Tax Information - Tax Compliance Activity and Binding Data Use Agreements"
description: "Disclosure of Tax Information - Tax Compliance Activity and Binding Data Use Agreements"
jurisdiction: "us/states/md"
legislature: "Maryland General Assembly"
session: "2024"
identifier: "HB 454"
citation: "Maryland HB 454 (2024)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Office of the Comptroller", "Speaker"]
version_count: 3
action_count: 13
vote_count: 2
first_action: "2024-01-22"
last_action: "2024-05-16"
source: "openstates"
source_identifier: "ocd-bill/82c9d4c8-d891-4983-b802-0e87c95ffe3d"
source_url: "http://mgaleg.maryland.gov/mgawebsite/Legislation/Details/hb0454?ys=2024RS&search=True"
source_hash: "50a3ecf40fd1f2af9fbd229493f8cb15bd95ed0ff5601f91c1512bff6c7713fb"
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-md"]
---

# Maryland HB 454 (2024) — Disclosure of Tax Information - Tax Compliance Activity and Binding Data Use Agreements

## Version chain

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

1. **Chapter - Disclosure of Tax Information - Tax Compliance Activity and Binding Data Use Agreements** (committee substitute) — [source](http://mgaleg.maryland.gov/2024RS/Chapters_noln/CH_728_hb0454t.pdf)
2. **First - Disclosure of Tax Information - Tax Compliance Activity and Binding Data Use Agreements** (committee substitute) — [source](http://mgaleg.maryland.gov/2024RS/bills/hb/hb0454f.pdf)
3. **Third - Disclosure of Tax Information - Tax Compliance Activity and Binding Data Use Agreements** (committee substitute) — [source](http://mgaleg.maryland.gov/2024RS/bills/hb/hb0454t.pdf)

## Votes

- On Third Reading — **34–12** (pass) · upper
- On Third Reading — **100–36** (pass) · lower

## Sponsors

- Office of the Comptroller — primary (person)
- Speaker — primary (person)

## Timeline

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

- **2024-01-22** First Reading Ways and Means `referral-committee`
- **2024-01-24** Hearing 2/08 at 1:00 p.m.
- **2024-03-11** Favorable with Amendments Report by Ways and Means `committee-passage-favorable`
- **2024-03-12** Favorable with Amendments { `committee-passage-favorable`
- **2024-03-12** Second Reading Passed with Amendments
- **2024-03-13** Third Reading Passed `passage`
- **2024-03-14** Referred Budget and Taxation `referral-committee`
- **2024-04-03** Favorable Report by Budget and Taxation `committee-passage-favorable`
- **2024-04-03** Favorable Adopted `committee-passage-favorable`
- **2024-04-03** Second Reading Passed
- **2024-04-04** Third Reading Passed `passage`
- **2024-04-04** Returned Passed
- **2024-05-16** Approved by the Governor - Chapter 728 `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/82c9d4c8-d891-4983-b802-0e87c95ffe3d`. Confidence: reported (aggregated from official Maryland legislature records).