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MAIN AND ARNOLD SENIOR HOUSING INC

EIN 94-3357145 HALF MOON BAY, CA

Browse the largest nonprofits in California

Revenue 2025
$1,039,388
Expenses 2025
$1,211,311

Program services were 74.5% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
L21
Classification
1000
Street
701 ARNOLD WAY

These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).

Other organizations at this address

1 other organization in the IRS Business Master File lists the same street address. matched by us

We match the street line and ZIP code as the IRS gives them, ignoring case and outer spaces and nothing else, so "AVE" and "AVENUE" count as different streets and this list can miss some. A shared address can mean related organizations or a shared office, but it can also be a registered agent, a mail drop or a service provider holding mail for unrelated clients. It is not, by itself, evidence that two organizations are connected.

Mission and programs · 2025

Mission

THE ORGANIZATION'S MISSION IS TO PROVIDE QUALITY, AFFORDABLE HOUSING FOR LOW-INCOME SENIOR CITIZENS ON A NON-PROFIT BASIS.

  • THE CORPORATION PROVIDED HOUSING AND OTHER SERVICES FOR LOW INCOME SENIORS, AND DISABLED PERSONS.

    Expenses $902,806 · Revenue $345,548

As filed on the 2025 return.

Officers and directors · 2025

As listed in Part VII of the 2025 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • Catherine Evans

    Executive Dir.

    Total calculated
    $251,803
    From this org
    $0
    From related orgs
    $220,486
    Other
    $31,317
    Hours/week
    1 + 39 related

    Schedule J breakdown matched by us

    Base
    not reported + $220,486 related
    Bonus
    not reported
    Other
    not reported
    Deferred
    not reported + $12,960 related
    Nontaxable benefits
    not reported + $18,357 related
    Filer's total
    not reported + $251,803 related
  • Nancy Amaya

    DEPUTY E.D.

    Total calculated
    $213,121
    From this org
    $0
    From related orgs
    $185,453
    Other
    $27,668
    Hours/week
    3 + 37 related

    Schedule J breakdown matched by us

    Base
    not reported + $185,453 related
    Bonus
    not reported
    Other
    not reported
    Deferred
    not reported + $11,272 related
    Nontaxable benefits
    not reported + $16,396 related
    Filer's total
    not reported + $213,121 related
  • Margaret Jensen

    MEMBER

    Total calculated
    $0
    Hours/week
    0.03 + 0.29 related
  • Michael Kim

    MEMBER

    Total calculated
    $0
    Hours/week
    0.09 + 0.68 related
  • Sue Winks

    President

    Total calculated
    $0
    Hours/week
    0.11 + 0.76 related
  • J Anthony Villanueva

    Vice President

    Total calculated
    $0
    Hours/week
    0.14 + 0.93 related
  • Bernadette Mellott

    Secretary

    Total calculated
    $0
    Hours/week
    0.07 + 0.58 related
  • Martin Simenc

    MEMBER

    Total calculated
    $0
    Hours/week
    0.08 + 0.62 related
  • Sandy Council

    Treasurer

    Total calculated
    $0
    Hours/week
    0.08 + 0.65 related
  • Naomi Patridge

    MEMBER

    Total calculated
    $0
    Hours/week
    0.13 + 0.78 related

Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead, and on a Form 990-PF Part VIII's — compensation, contributions to benefit plans, and expense account — and the total sums those. A Schedule J breakdown is as filed: base pay, bonus, other, deferred compensation and nontaxable benefits from this organization, with any from related organizations beside each, and the filer's own total. It is shown with the Part VII listing of the same name on the same return. The form gives no key between the two, so that pairing is ours, and is marked matched by us. Earlier years are each on their own filing page.

Filings

  • 2025
    Revenue
    $1,039,388
    Expenses
    $1,211,311
    Contributions
    $685,670
    Grants paid
    $0
  • 2024
    Revenue
    $891,374
    Expenses
    $1,182,672
    Contributions
    $573,466
    Grants paid
    $0
  • 2023
    Revenue
    $885,065
    Expenses
    $1,163,417
    Contributions
    $586,908
    Grants paid
    $0
  • 2022
    Revenue
    $887,413
    Expenses
    $1,017,377
    Contributions
    $612,416
    Grants paid
    $0

The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.

Other returns filed

  • 2021 · 990

    Revenue
    $864,413
    Expenses
    $1,041,395
    Assets (EOY)
    $7,287,974
  • 2020 · 990

    Revenue
    $871,543
    Expenses
    $1,054,309
    Assets (EOY)
    $7,437,427
  • 2019 · 990

    Revenue
    $1,154,688
    Expenses
    $982,547
    Assets (EOY)
    $7,570,644
  • 2018 · 990

    Revenue
    $719,194
    Expenses
    $986,380
    Assets (EOY)
    $7,637,739
  • 2017 · 990

    Revenue
    $710,514
    Expenses
    $898,334
    Assets (EOY)
    $7,808,274
  • 2016 · 990

    Revenue
    $569,228
    Expenses
    $866,113
    Assets (EOY)
    $7,920,558
  • 2015 · 990

    Revenue
    $559,887
    Expenses
    $854,559
    Assets (EOY)
    $8,163,667
  • 2014 · 990

    Revenue
    $540,364
    Expenses
    $793,469
    Assets (EOY)
    $8,470,679

Nonprofiteer parses Forms 990, 990-EZ and 990-PF, in a window of recent tax years. These returns are recorded from the IRS e-file index, so their figures were extracted by that index rather than read from the return here — treat them as a different source from the filings above, not as more of the same record. A dash means the index carries no figure; Form 990-T listings carry none at all.

Grants made

No itemized grants to organizations. Schedule I is filed only by organizations that granted more than $5,000 to a recipient, so most filers have none.

Grants received

Related organizations

From Schedule R Part II, where a filer lists the tax-exempt organizations it is related to by control. It does not record shared board members or money.

Declared on its 2025 return

Declared as related by

Other IRS files

Auto-Revocation List

Not listed. The IRS publishes this list for organizations whose exemption was automatically revoked for failing to file for three consecutive years.

Publication 78

Listed as of 11 November 2026, under deductibility PC.

These are two separate IRS files on two separate schedules, shown as published and not reconciled with each other. Neither is a statement about whether a contribution is deductible today: 19,245 organizations appear in Publication 78 while the IRS's own revocation file lists them as currently revoked, more than half of those revoked before 2019. Absence from Publication 78 is evidence of nothing, and presence is not evidence either. Verify current status with the IRS before relying on it.

What this page reflects

The registration facts above come from the IRS Business Master File published 9 November 2026 and read 9 November 2026, for every organization at once. Returns through tax year 2025, the newest we have parsed for this organization.