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Form 990-PFTax year 2025EIN 90-0587767

Jonathan & Marjorie Slass Foundation

A private foundation in Warren, NJ. Its return for tax year 2025 lists 0 grants.

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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

Not stated

The return neither checks the preselected-only box nor gives application details.

Assets and giving by year

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

  • Tax year 2025

    $0

    Grants listed
    0
    Assets, end of year
    $363

  • Tax year 2024

    $0

    Grants listed
    0
    Assets, end of year
    $363

  • Tax year 2023

    $100

    Grants listed
    1
    Assets, end of year
    $394

  • Tax year 2022

    $0

    Grants listed
    0
    Assets, end of year
    $552

  • Tax year 2021

    $10,000

    Grants listed
    1
    Assets, end of year
    $555

  • Tax year 2020

    $58,859

    Grants listed
    9
    Assets, end of year
    $865

  • Tax year 2019

    $75,800

    Grants listed
    17
    Assets, end of year
    $62,078

  • Tax year 2018

    $77,005

    Grants listed
    14
    Assets, end of year
    $116,269

Grants paid in 2025

0 grants, largest first

As listed on the return.

Officers, directors and trustees

2 people as filed

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

  • Jonathan SlassTRUSTEE Hours 0.5Pay $0
  • Marjorie SlassTRUSTEE Hours 0.5Pay $0

The return

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