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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 54-1535436

CSO PARTNERSHIP INC

Tax-exempt · RICHMOND, VA 23218

Financials

$188K$175K2023$163K$131K2024
Revenue Expenses · by fiscal year end
Financials of CSO PARTNERSHIP INC by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
September 30, 2025990-EZ$162,839$130,820$32,019$139,170–$139,170
September 30, 2024990-EZ$187,755$175,116$12,639$107,151–$107,151
Financial details: 990-EZ for the year ended September 30, 2025

Revenue

Membership dues
$79,750
Program service revenue
$83,086
Investment income
$3

Expenses

Compensation of officers, directors and key employees
$0
Professional fees and payments to contractors
$130,820
Program services (functional)
$130,820

Balance sheet and other

Total assets, start of year
$107,151
Total assets, end of year
$139,170
Total liabilities, end of year
–
Net assets, end of year
$139,170
Cash, savings and investments
$139,170
Gross receipts
$162,839

From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.

Officers, directors and key employees

As listed on the 990-EZ for the year ended September 30, 2025, highest compensation first.

NameTitleHours / weekCompensation
MIKE WITTPRESIDENT3$0
ABE FORNEYVICE PRESIDE3$0
ERRIN KEMPERTREASURER3$0
KUMAR MENONDIRECTOR1.5$0
TIM MITCHELLDIRECTOR1.5$0
ANDY SHIVELYDIRECTOR1.5$0
JOHN CARSONDIRECTOR1.5$0
SCOTT MORRISDIRECTOR1.5$0
JEREMIAH JOHNSONDIRECTOR1.5$0
990-EZ for the year ended September 30, 2024: 10 people
NameTitleHours / weekCompensation
MIKE WITTPRESIDENT3$0
JOSH SCHIMMELVICE PRESID3$0
ERRIN KEMPERTREASURER3$0
KUMAR MENONDIRECTOR1.5$0
TIM MITCHELLDIRECTOR1.5$0
ANDY SHIVELYDIRECTOR1.5$0
BOB STEIDELDIRECTOR1.5$0
JOHN CARSONDIRECTOR1.5$0
ABE FORNEYDIRECTOR1.5$0
JEREMIAH JOHNSONDIRECTOR1.5$0

Address and contacts

Address (IRS master file)
PO BOX 51, RICHMOND, VA 23218-0051
Signed the 990-EZ
ERRIN KEMPER, TREASURER
Phone
(804) 716-9021
Return prepared by
CLARKSON DAVID CPA PC

Mission

ENVIRONMENTAL PROTECTION AND EDUCATION.

990-EZ for the year ended September 30, 2025

Program accomplishments

  • THE ASSOCIATION ADVOCATES NATIONALLY ON BEHALF OF PUBLIC WATER, SEWER, AND STORMWATER UTILITIES. WE TRACK ALL FEDERAL POLICIES, RULES, AND LEGISLATION AFFECTING PUBLIC UTILITIES. THE ASSOCIATION ENGAGES WITH USEPA AND CONGRESS ON A RANGE OF DISCHARGE PERMITTING, INFRASTRUCTURE PLANNING AND FINANCING, AND RELATED REGULATORY MATTERS AFFECTING PUBLIC UTILITY PROGRAMS. WE PROVIDE ROUTINE UPDATES AND WEBINARS FOR MEMBERS ON PENDING NATIONAL AS WELL AS SIGNIFICANT STATE MATTERS OF INTEREST.
    Expenses $48,000
  • THE ORGANIZATION HELD ITS NATIONAL CONFERENCE DURING THE FISCAL YEAR. EDUCATIONAL TOPICS INCLUDED MATTERS REGARDING ENVIRONMENTAL PROTECTION AND MEMBERS' PRESENTATION OF ACHIEVEMENTS IN THEIR RESPECTIVE COMMUNITIES.
    Expenses $82,820

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in September, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025September 30, 2026February 16, 2027Not due yet
2024September 30, 2025February 17, 2026990-EZ on file
2023September 30, 2024February 18, 2025990-EZ on file

File the 2025 990-EZ for CSO PARTNERSHIP INC

Due February 16, 2027 · e-filed with the IRS by 990.tax, an IRS-authorized e-file provider

IRS record

EIN
54-1535436
Tax-exempt status
501(c)(4): Social welfare organization
Donations deductible
No
Exempt since
1991
Accounting year ends
September
Files
Form 990 or 990-EZ
Assets (IRS master file)
$139,170
Income (IRS master file)
$162,839

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-EZSeptember 2025$162,839$130,820$139,170XML
990-EZSeptember 2024$187,755$175,116$107,151XML
990-EZSeptember 2023–––IRS
990-EZSeptember 2022–––IRS
990-EZSeptember 2021–––IRS
990-EZSeptember 2020–––IRS
990-EZSeptember 2019–––IRS
990-EZSeptember 2018–––IRS

990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 54-1535436).

Questions about CSO PARTNERSHIP INC

What is the EIN of CSO PARTNERSHIP INC?
The employer identification number (EIN) of CSO PARTNERSHIP INC is 54-1535436.
Is CSO PARTNERSHIP INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(4) since 1991.
Are donations to CSO PARTNERSHIP INC tax-deductible?
No. The IRS master file says contributions to it are not deductible.
Which annual return does CSO PARTNERSHIP INC file?
Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
When is the next return of CSO PARTNERSHIP INC due?
The return for tax year 2025 (the year ending September 30, 2026) is due February 16, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did CSO PARTNERSHIP INC last file with the IRS?
The latest return in the IRS public files is the 990-EZ for the year ended September 2025.
Who are the officers and directors of CSO PARTNERSHIP INC?
The 990-EZ for the year ended September 30, 2025 lists 9 people; 0 received compensation from the organization.
How much revenue does CSO PARTNERSHIP INC have?
On its 990-EZ for the year ended September 30, 2025 it reported revenue of $162,839, expenses of $130,820 and total assets of $139,170 at year end.

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