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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 26-3503628

WAUWATOSA STEM INC

Also known as TSHST

Tax-exempt · WAUWATOSA, WI 53213

Financials

$29K$13K2023$15K$33K2024
Revenue Expenses · by fiscal year end
Financials of WAUWATOSA STEM INC by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
June 30, 2025990-EZ$14,745$33,417-$18,672$37,134$0$37,134
June 30, 2024990-EZ$29,199$12,934$16,265$55,806$0$55,806
Financial details: 990-EZ for the year ended June 30, 2025

Revenue

Contributions, gifts and grants
$7,468
Program service revenue
$0
Investment income
$0
Net income from fundraising events
$7,277
Other revenue
$0

Expenses

Grants and similar amounts paid
$0
Compensation of officers, directors and key employees
$0
Salaries, compensation and benefits (total)
$0
Professional fees and payments to contractors
$6,630
Other expenses
$26,787
Program services (functional)
$25,578

Balance sheet and other

Total assets, start of year
$55,806
Total assets, end of year
$37,134
Total liabilities, end of year
$0
Net assets, end of year
$37,134
Cash, savings and investments
$37,134
Gross receipts
$20,628

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 June 30, 2025, highest compensation first.

NameTitleHours / weekCompensation
Anna TercPresident5$0
Matthew KopetskyVice President5$0
Libby WoodlandSecretary5$0
Justin DuxTreasurer5$0
990-EZ for the year ended June 30, 2024: 4 people
NameTitleHours / weekCompensation
Mark HammondPresident5$0
Anna TercVice President5$0
Jean Storlie-BensonSecretary5$0
Justin DuxTreasurer5$0

Address and contacts

Address (IRS master file)
1060 GLENVIEW AVE, WAUWATOSA, WI 53213-3034
Mailing address (990-N for 2022)
1060 GLENVIEW AVE, WAUWATOSA WI 532133034
Principal officer (990-N for 2022)
Jonathan Jackson, 1060 Glenview Avenue, Wauwatosa WI 53213
Signed the 990-EZ
Justin Dux, Treasurer
Phone
(000) 000-0000

Mission

Charter school serving grades K-5

990-EZ for the year ended June 30, 2025

Program accomplishments

  • Curriculum Staff Professional Development Expenses related to attending conferences and seminars to learn and implement new classroom curriculum
    Expenses $8,778
  • Out-of-Classroom Learning STEM Labs and field trips to promote and experience learning of Science Technology Engineering and Math for approximately 150 students and staff
    Expenses $13,935
  • School Events StudentTeachersParentsCommunity events to build relationships that are at the core of the success of students teachers and administrators
    Expenses $2,865

What it must file and when

IRS records say it files Form 990-N (e-Postcard). Gross receipts normally $50,000 or less. Its accounting year ends in June, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025June 30, 2026November 16, 2026Not due yet
2024June 30, 2025November 17, 2025990-EZ on file
2023June 30, 2024November 15, 2024990-EZ on file

File the 2025 990-N for WAUWATOSA STEM INC

Due November 16, 2026 · e-filed with the IRS by 990.tax, an IRS-authorized e-file provider

IRS record

EIN
26-3503628
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
School
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
2009
Accounting year ends
June
Files
Form 990-N (e-Postcard)
Category (NTEE)
Education (B20)
Assets (IRS master file)
$37,134
Income (IRS master file)
$20,628

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-EZJune 2025$14,745$33,417$37,134XML
990-EZJune 2024$29,199$12,934$55,806XML
990-N for 2022
Officer: Jonathan Jackson
June 30, 2023≤ $50,000 receipts––e-Postcard
990-EZJune 2023–––IRS
990-EZJune 2022–––IRS
990-N for 2012
Officer: Kristy Casey
June 30, 2013≤ $50,000 receipts––e-Postcard

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 26-3503628).

Questions about WAUWATOSA STEM INC

What is the EIN of WAUWATOSA STEM INC?
The employer identification number (EIN) of WAUWATOSA STEM INC is 26-3503628.
Is WAUWATOSA STEM INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2009.
Are donations to WAUWATOSA STEM INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does WAUWATOSA STEM INC file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of WAUWATOSA STEM INC due?
The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did WAUWATOSA STEM INC last file with the IRS?
The latest return in the IRS public files is the 990-EZ for the year ended June 2025.
Who is the principal officer of WAUWATOSA STEM INC?
The 990-N for 2022 names Jonathan Jackson.
Who are the officers and directors of WAUWATOSA STEM INC?
The 990-EZ for the year ended June 30, 2025 lists 4 people; 0 received compensation from the organization.
How much revenue does WAUWATOSA STEM INC have?
On its 990-EZ for the year ended June 30, 2025 it reported revenue of $14,745, expenses of $33,417 and total assets of $37,134 at year end.

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