Skip to the page content
Passes our checks

Longhouse Reserve

EIN 33-1058583 · East Hampton, NY

Public records show a registered, tax-exempt organization in good standing.

LegitimacyPassesRegistration and standingFinancial healthFair64 out of 100GovernanceStrong90 out of 100Impact evidenceDescribes programsHow well its results are evidenced

What it says it does

LONGHOUSE RESERVE INSPIRES LIVING WITH ART IN ALL FORMS. FOUNDED BY JACK LENOR LARSEN, ITS COLLECTIONS, GARDENS, ART AND PROGRAMS REFLECT WORLD CULTURES.

Income
$2.0 million
Spending
$2.2 million
Spent on programs
73%
Reserves
1.9 months of spending
Largest source of income
donations and private grants, 71%
Employees
16
Volunteers
44
Highest pay
$220,000, director

Source: Form 990 for the year ending December 31, 2024, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Financial health

Fair: 64 out of 100. Higher than 46% of charities in its peer group (education, $1m to $10m).

  • Reserves

    10 of 35

    Spendable reserves would cover 1.9 months of spending.

  • Debt

    20 of 20

    It owes 4% of what it owns.

  • Living within its means

    4 of 15

    Spending exceeded income by 14% of income.

  • Income trend

    15 of 15

    Income rose 41% on the year before.

  • Spending floor

    15 of 15

    73% of spending went to programs and raising each dollar of donations cost 16 cents.

Source: Form 990 for the year ending December 31, 2024, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Governance

Strong: 90 out of 100. Higher than 57% of charities in its peer group (education, $1m to $10m).

  • Independent board

    25 of 25

    14 of 14 voting board members are independent.

  • Conflict of interest policy

    15 of 15

    Has a written conflict of interest policy.

  • Whistleblower policy

    8 of 8

    Has a written whistleblower policy.

  • Record keeping policy

    7 of 7

    Has a written policy on keeping and destroying records.

  • Board minutes

    5 of 5

    Keeps minutes of board meetings.

  • Board sees the tax return

    0 of 10

    Did not give the board a copy of this return before filing it.

  • Pay set independently

    5 of 5

    Sets its chief executive's pay through independent review and comparison.

  • Independent check of accounts

    15 of 15

    Its accounts were audited by an independent accountant.

  • No reported misuse

    10 of 10

    Reports no diversion of assets, excess benefits or loans to insiders.

Source: Form 990 for the year ending December 31, 2024, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Impact evidence

Describes programs. Its tax return describes what it does but we have found no measurable results in it.

Programs described in its return (1)
  1. $1.6 million spent. IN 2024, LONGHOUSE RESERVE WAS OPEN TO THE PUBLIC FROM ALL YEAR, WEEKENDS JANUARY-MARCH AND FIVE-DAYS A WEEK APRIL THROUGH DECEMBER. ANNUAL ATTENDANCE WAS APPROXIMATELY 35,000, INCLUDING SCHOOL GROUPS, GARDEN TOURS, AND SPECIAL PROGRAMS. THE SEASON FEATURED NEW LOANS TO THE ART IN THE GARDEN PROGRAM. LONGHOUSE HELD REGULAR ART AND GARDEN TOURS. OTHER PUBLIC PROGRAMS IN 2024 INCLUDED OUR ANNUAL SUMMER BENEFIT, JACK'S BIRTHDAY CONCERT, OUR ANNUAL LANDSCAPE LECTURE WEEKEND, AND LONGHOUSE ILLUMINATED, OUR WINTER HOLIDAY LIGHT SHOW. IN ADDITION TO THESE SPECIAL EVENTS, OUR CALENDAR WAS FULL OF ARTIST TALKS, AUTHOR TALKS, WORKSHOPS, AND FAMILY ACTIVITIES. EDUCATION PROGRAMS INCLUDED DOCENT-LED SCHOOL TOURS, CURRICULAR GUIDES, FAMILY ACTIVITY GUIDES, AND SUMMER INTERNSHIPS FOR COLLEGE STUDENTS. IN ADDITION, 2024 CONTINUED THE TRANSITION TO A BOARD AND STAFF LED INSTITUTION (FOLLOWING THE DEATH OF JACK LENOR LARSEN IN 2020), WITH NEW BOARD MEMBERS AND STAFF MEMBERS JOINING. LONGHOUSE ENTERED TWO MAJOR PROCESSES: A CHANGE OF USE (RESIDENTIAL TO MULTI-USE) WITH THE TOWN OF EAST HAMPTON WITH THE GOAL OF OPENING THE HOUSE FOR PUBLIC TOURS; AND AN APPLICATION TO BE LISTED ON THE NATIONAL REGISTER OF HISTORIC PLACES, AN INVITATION WE RECEIVED FROM NEW YORK STATE. WE CONDUCTED TWO STUDIES FUNDED BY THE IMLS: A MUSEUM ASSESSMENT PROGRAM EVALUATION ON OPERATIONAL EXCELLENCE, AND A COLLECTIONS ASSESSMENT PROGRAM EVALUATION FOR CARE AND MANAGEMENT OF OUR COLLECTIONS.

Source: Form 990 for the year ending December 31, 2024, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Legitimacy checks

  1. Is it registered with the IRS? Passed.

    Listed in the IRS master file of tax-exempt organizations as a 501(c)(3) charitable organization.

    Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated September 7, 2026.

  2. Has the IRS revoked its tax-exempt status? Passed.

    Not on the IRS automatic revocation list.

    Source: Automatic revocation of exemption list, Internal Revenue Service, file dated September 30, 2026.

  3. Are donations tax-deductible? Passed.

    On the IRS list of organizations eligible to receive tax-deductible contributions.

    Source: Publication 78 data: organizations eligible for tax-deductible contributions, Internal Revenue Service, file dated September 10, 2026.

  4. Is it keeping up with its IRS filings? Passed.

    Most recent return on file covers the year ending December 2024.

    Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated September 7, 2026.

  5. How long has it been tax-exempt? Passed.

    Recognized by the IRS since August 2004.

    Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated September 7, 2026.

  6. Is it in good standing with state regulators? Passed.

    Not on California's list of charities barred from soliciting. Other states are not yet checked.

    Source: May Not Operate or Solicit for Charitable Purposes list, California Attorney General, Registry of Charities and Fundraisers, file dated October 7, 2026.

Ratings and checks are our reading of public records, using the published method. They are not a statement about anyone's honesty. If you work for this organization, you can send corrections or results, confirm you want gifts through Veridonate, or ask to be removed from giving.