Wisconsin

Wisconsin is ranked 8th in terms of the total value of reported contributions made to 527 organizations based there. It has 10 recently active organizations and 67 total organizations that have electronically reported itemized contributions and expenditures to the IRS.

Financial Overview
All-Time Contributions
$166.7M
All-Time Expenditures
$166.5M
Largest Organizations

Organizations that received the highest total contributions in the last two years of available data.

Out-of-State Contributors

Out-of-state contributors who gave the highest total contributions to organizations based in Wisconsin in the last two years. Aggregation is done by name and location. Click on a contributor to see search results for that name.

AFSCME
District of Columbia
$650,000
NAR Political Advocacy Fund
Illinois
$559,798
The PAC For Americas Future
District of Columbia
$476,000
Democratic Legislative Campaign Committee
District of Columbia
$300,000
Toolbox Fund
Virginia
$150,000
National Association of REALTORS
Illinois
$100,000
United Food and Commercial Workers Intl Union
District of Columbia
$51,000
Wisconsin Power and Light Co
Iowa
$50,000
Working for Working Americans
Nevada
$50,000
Carolyn W Millis
Georgia
$30,062

In-State Contributors

Wisconsin-based contributors who gave the highest total contributions to organizations nationwide in the last two years. Aggregation is done by name and location. Click on a contributor to see search results for that name.

Wisconsin Opportunity Coalition, Inc
Fitchburg
$1M
Susan Crawford for Wisconsin
Madison
$649,779
Tammy Baldwin for Senate
Madison
$628,544
Forest County Potawatomi Community
Crandon
$460,000
Metropolitan Milwaukee Association of Commerce
Milwaukee
$360,000
Robert Habush
Milwaukee
$350,200
Democratic Party of Wisconsin - Federal Account
Madison
$323,459
Phoenix Investors LLC
Milwaukee
$301,000
Forest County Potawatomi Action Fund
Madison
$300,000
National Association for Pet Container Resources
Middleton
$300,000
Show more

Contributions & Expenditures

Explore all contributions to and expenditures by organizations based in Wisconsin. Totals only include contributions and expenditures listed in electronically filed reports.

Recent Activity

Largest contributions and expenditures in the last year of data for all organizations in Wisconsin.

- $250,234 June 26, 2026
Source: Wisconsin REALTORS Advocacy Fund — Quarter 2 report
+ $250,000 June 25, 2026
Source: New Wisconsin Majority — Quarter 2 report
+ $150,000 June 22, 2026
Source: New Wisconsin Majority — Quarter 2 report
- $157,043 June 1, 2026
Source: Wisconsin REALTORS Advocacy Fund — Quarter 2 report
+ $250,000 March 27, 2026
Source: New Wisconsin Majority — Quarter 1 report
- $50,000 August 27, 2025
Source: Forest County Potawatomi Action Fund — End-of-year report

All contributions to organizations based in Wisconsin.

Search all contributors, including those who made in-kind contributions of goods and services. Those who gave less than $200 per year may be reported in aggregate. Read more about the information required in these filings.

All expenditures by organizations based in Wisconsin.

Search all expenditures. Expenditures under $500 may be reported in aggregate. Read more about the information required in these filings.

All Organizations in Wisconsin

Wisconsin has 67 organizations that have filed electronic form 8872s with the IRS, meaning they disclosed detailed information about who has contributed and how they’ve spent their money, out of 711 organizations in Wisconsin that have registered with the IRS as 527s. Organizations that have not reported contributions or expenditures to the IRS may have filed on a federal, state or local level, or they may not have any activity to report.

About This Data


What is a 527?

A 527 is a nonprofit formed under Section 527 of the Internal Revenue Code, which grants tax-exempt status to organizations whose primary purpose is attempting to influence the election of one or more people to public office at the national, state or local level. But contributions to these organizations are not considered tax-deductible, unlike gifts to charities.

What organizations are in the 527 Explorer?

This database covers tax-exempt political organizations organized under Section 527, excluding organizations that are regulated by the Federal Election Commission (like federal PACs are); that expect to receive less than $25,000 in annual contributions; that are nonpolitical nonprofits, like charities; or that are political committees for a state or local candidate or a political party. An organization’s state is taken from the address reported on its most recent form 8871.

What organizations report itemized contributions and expenditures?

Tax-exempt political organizations, other than qualified state or local political organizations, that have filed for tax-exempt status with the IRS under Section 527 must file Form 8872 to disclose any expenditures made or contributions received. A qualified state or local political organization is one whose political activities relate solely to state or local public office and that routinely files publicly available reports with one or more states. For state-by-state information on tax-exempt political organizations and their filings, see the IRS’ listings.

Note: Only electronic filings are included in this data. While many organizations filed electronically before 2020, electronic filing for all organizations was only required beginning in January 2020. Therefore, some contributions and expenditures made prior to 2020 may not be reflected in this data.

Note: We make a best-effort attempt to not display street-level addresses for payments labeled as "salary."

How are the totals calculated?

An organization’s total contributions and expenditures are calculated by summing up the most recent report filed for each reporting period. However, organizations sometimes file reports for overlapping dates or reports that duplicate data. For any date range, the most recently filed report is marked. Duplicate contributions or expenditures (ones that have the exact same name, amount and date but show up in multiple reports) have been removed from the calculated totals.

Current site Current page