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Form 990-PFTax year 2025EIN 39-1098935

Koss Foundation Inc

A private foundation in Milwaukee, WI. Its return for tax year 2025 lists 5 grants and $25,000 paid in grants.

See which foundations fund work like yours Matching by cause, place and grant size

Tax year 2025 (period ending Dec 31, 2025), read from the IRS e-file on Nov 11, 2026. Returns reach the IRS 5 to 18 months after the year they describe.

How to apply

Accepts applications

The return gives an application contact and rules, as below.

Contact
Michael J Koss
4129 N Port Washington Road
Milwaukee, WI 53212
(414) 964-5000
[email protected]
Form and materials
No specified form-letter solicitations
Deadlines
None
Restrictions
None other than 501(c)(3) entities

Assets and giving by year

5 returns on file
Grants paid by tax year. The latest year is in blue.

  • Tax year 2025

    $25,000

    Grants listed
    5
    Assets, end of year
    $711,227

  • Tax year 2024

    $33,000

    Grants listed
    8
    Assets, end of year
    $737,932

  • Tax year 2023

    $33,500

    Grants listed
    10
    Assets, end of year
    $767,068

  • Tax year 2021

    $9,000

    Grants listed
    In an attachment
    Assets, end of year
    $778,747

  • Tax year 2020

    $24,000

    Grants listed
    In an attachment
    Assets, end of year
    $673,083

Grants paid in 2025

5 grants, largest first

As listed on the return.

  1. Junior Achievement of WiMilwaukee, WI

    General operations

    $20,000
  2. Crohns & Colitis FoundationNew York, NY

    General operations

    $2,500
  3. Milwaukee Symphony OrchestraMilwaukee, WI

    General operations

    $1,000
  4. Colonial Williamsburg FoundationWilliamsburg, VA

    General operations

    $1,000
  5. CruOrlando, FL

    General operations

    $500

Where the money goes

By cause: grants to organizations we matched to the IRS list of exempt organizations, by their category.

  1. Health1 grant $2,50056% of the total
  2. Arts and culture2 grants $2,00044% of the total

By State

Grants to organizations with a US address, latest year.

  1. Wisconsin2 grants $21,000
  2. New York1 grant $2,500
  3. Virginia1 grant $1,000
  4. Florida1 grant $500

Officers, directors and trustees

2 people as filed

As filed on the return, with average hours per week and pay from the foundation.

  • Michael J KossPRES/SEC/TRE Hours 0.5Pay $0
  • John C Koss JrOFFICER Hours 0.5Pay $0

The return

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