Senate LDA data Updated quarterly Lobbying disclosures

Taxation/Internal Revenue Code Lobbying

Heavy-volume Senate LDA filings on Taxation/Internal Revenue Code: the largest registrant books in this issue code report quarterly LD-2 outlays and named contacts.

All issues → Methodology

The verdict

PlainInfluence tracks $909.2M in itemized Taxation/Internal Revenue Code lobbying disclosures across 2,713 filers, among them CHAMBER OF COMMERCE OF THE U.S.A., NATIONAL ASSOCIATION OF REALTORS, PHARMACEUTICAL RESEARCH AND MANUFACTURERS OF AMERICA, ranking #1 of 79 tracked issues by spend.

#1
of 79 issues by spend
$909.2M
tracked Taxation/Internal Revenue Code lobbying
2,713
organizations lobbying
$335K
average per filer

Issue code: TAX · 2713 organizations lobbying on this issue

Total Lobbying Spend
$909.2M
Organizations
2,713

Taxation/Internal Revenue Code filing shape

Taxation/Internal Revenue Code (TAX) drew $909.2M in tracked LDA spending across 2,713 filers, among the heavier issue codes in the Senate bulk.

CHAMBER OF COMMERCE OF THE U.S.A. leads this issue's filer table with $142.2M in all-issue lobbying; filings remain spread across 10 named organizations rather than collapsing into one registrant.

Because many distinct organizations file on Taxation/Internal Revenue Code, the LD-2 stream here is a useful map of competing advocacy priorities before hearings or rulemakings register in outcomes.

Top Spenders

Rank Organization Total Lobbying
#1 CHAMBER OF COMMERCE OF THE U.S.A. $142.2M
#2 NATIONAL ASSOCIATION OF REALTORS $140.6M
#3 PHARMACEUTICAL RESEARCH AND MANUFACTURERS OF AMERICA $65.7M
#4 AMERICAN HOSPITAL ASSOCIATION $55.3M
#5 AMERICAN MEDICAL ASSOCIATION $47.6M
#6 BUSINESS ROUNDTABLE $47.5M
#7 META PLATFORMS, INC. AND VARIOUS SUBSIDIARIES $44.0M
#8 AMERICAN CHEMISTRY COUNCIL $41.9M
#9 AMAZON.COM SERVICES LLC $39.1M
#10 AARP $38.9M
#11 CTIA-THE WIRELESS ASSOCIATION $36.3M
#12 COMCAST CORPORATION $36.1M
#13 ALTRIA CLIENT SERVICES $33.7M
#14 NCTA - THE INTERNET & TELEVISION ASSOCIATION $32.1M
#15 GENERAL MOTORS COMPANY $31.5M
#16 GOOGLE CLIENT SERVICES L.L.C. $30.9M
#17 GENERAL DYNAMICS CORPORATION $30.9M
#18 LOCKHEED MARTIN CORPORATION $29.5M
#19 PFIZER INC. $28.8M
#20 AMGEN INC. $28.5M
#21 BOEING $27.9M
#22 AMERICAN FUEL & PETROCHEMICAL MANUFACTURERS $27.5M
#23 CHARTER COMMUNICATIONS INC. $27.3M
#24 NATIONAL ASSOCIATION OF BROADCASTERS $27.2M
#25 FEDEX CORPORATION $27.1M
#26 AMERICA'S HEALTH INSURANCE PLANS (AHIP) $27.0M
#27 RTX CORPORATION AND AFFILIATES $26.8M
#28 QUALCOMM INCORPORATED $26.4M
#29 VERIZON COMMUNICATIONS INC AND VARIOUS SUBSIDIARIES $26.3M
#30 T-MOBILE USA, INC. $26.2M
#31 ORACLE CORPORATION $25.7M
#32 EDISON ELECTRIC INSTITUTE $25.1M
#33 SOUTHERN COMPANY $24.8M
#34 GENENTECH INC. $24.4M
#35 OCCIDENTAL PETROLEUM CORPORATION $23.9M
#36 MICROSOFT CORPORATION $23.8M
#37 GILEAD SCIENCES, INC. $23.1M
#38 APPLE, INC. $22.8M
#39 MERCK & CO., INC. $22.1M
#40 HONEYWELL INTERNATIONAL $22.0M
#41 CVS HEALTH (AND SUBSIDIARIES) $21.5M
#42 AT&T SERVICES, INC. AND ITS AFFILIATES $21.3M
#43 JOHNSON & JOHNSON SERVICES INC $20.3M
#44 NATIONAL ASSOCIATION OF MANUFACTURERS $20.1M
#45 NORTHROP GRUMMAN CORPORATION $19.8M
#46 WALMART INC. $19.5M
#47 NEXTERA ENERGY, INC $19.3M
#48 KOCH GOVERNMENT AFFAIRS $19.3M
#49 VISA INC $19.2M
#50 NATIONAL RETAIL FEDERATION $18.5M

Registrant concentration on Taxation/Internal Revenue Code

Largest registrants by all-issue lobbying total among filers on code TAX (Senate LDA).

CHAMBER OF COMMERCE OF THE U…$142.2MNATIONAL ASSOCIATION OF REAL…$140.6MPHARMACEUTICAL RESEARCH AND …$65.7MAMERICAN HOSPITAL ASSOCIATION$55.3MAMERICAN MEDICAL ASSOCIATION$47.6MBUSINESS ROUNDTABLE$47.5MMETA PLATFORMS, INC. AND VAR…$44.0MAMERICAN CHEMISTRY COUNCIL$41.9M
All-issue lobbying total among filers on Taxation/Internal Revenue Code · official public datasets

Source: U.S. Senate Office of Public Records, Lobbying Disclosure Act filings LD-2 quarterly lobbying disclosure filings (issue codes, registrants, expenditures) · 2024 Aggregated from quarterly LD-2 filings for issue code TAX; covers 2,713 registered organizations across the 2023-2024 reporting period. Data current as of August 2026.

Questions on this issue code

How much is spent lobbying on Taxation/Internal Revenue Code?
$909.2M was reported on Taxation/Internal Revenue Code (TAX) by 2,713 organizations in 2023-2024 Senate LDA filings, a heavy code by tracked outlay. CHAMBER OF COMMERCE OF THE U.S.A. leads the filer list.
Who are the biggest spenders on Taxation/Internal Revenue Code lobbying?
Top filers on Taxation/Internal Revenue Code include CHAMBER OF COMMERCE OF THE U.S.A., NATIONAL ASSOCIATION OF REALTORS, PHARMACEUTICAL RESEARCH AND MANUFACTURERS OF AMERICA. Rankings use each organization's all-issue lobbying total among registrants that filed on code TAX.
How many organizations lobby on Taxation/Internal Revenue Code?
2,713 organizations filed on Taxation/Internal Revenue Code in 2023-2024, a broad filer field relative to other LDA issue codes.

Data: official public datasets, 2023-2024. Verify filings at lda.senate.gov.