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CASTLE SQUARE TENANTS ORGANIZATION INC

EIN 04-3016145 BOSTON, MA

Revenue 2024
$5,924,083
Expenses 2024
$2,588,473

Program services were 56.9% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
L52Z
Classification
1000
Street
476 TREMONT ST

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).

Mission and programs · 2024

Mission

CASTLE SQUARE TENANTS ORGANIZATION'S MISSION IS TO PROMOTE THE ECONOMIC, EDUCATIONAL AND SOCIAL EMPOWERMENT OF LOW AND MODERATE INCOME INDIVIDUALS BY PROVIDING ACCESS TO SAFE, QUALITY AFFORDABLE HOUSING AND SUPPORTIVE DIRECT SERVICE PROGRAMS.

  • CASTLE SQUARE TENANTS ORGANIZATION'S PROGRAMS PROMOTE THE ECONOMIC, EDUCATIONAL AND SOCIAL EMPOWERMENT OF LOW AND MODERATE INCOME INDIVIDUALS AND PROVIDE ACCESS TO SAFE, QUALITY AFFORDABLE HOUSING.

    Expenses $1,472,894 · Revenue $3,984,346

As filed on the 2024 return.

Officers and directors · 2024

As listed in Part VII of the 2024 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • ANN MOY

    PRESIDENT

    Total calculated
    $0
    Hours/week
    25 + 2 related
  • TERRANCE WOOLFORK

    VICE PRESIDENT

    Total calculated
    $0
    Hours/week
    7 + 2 related
  • VERNON MILLS

    TREASURER

    Total calculated
    $0
    Hours/week
    7 + 1 related
  • NHI LE TANG

    SECRETARY

    Total calculated
    $0
    Hours/week
    10
  • YVONNE HOLMES

    DIRECTOR

    Total calculated
    $0
    Hours/week
    7 + 2 related
  • HUI LING CHEN

    DIRECTOR

    Total calculated
    $0
    Hours/week
    12
  • ENEIDA LEBRON

    DIRECTOR (UNTIL 12/2024)

    Total calculated
    $0
    Hours/week
    7
  • DEBORAH A BACKUS

    EXECUTIVE DIRECTOR

    Total calculated
    $135,514
    From this org
    $135,514
    From related orgs
    $0
    Other
    $0
    Hours/week
    40 + 2 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. Earlier years are each on their own filing page.

Filings

  • 2024
    Revenue
    $5,924,083
    Expenses
    $2,588,473
    Contributions
    $140,617
    Grants paid
    $0
  • 2023
    Revenue
    $5,290,207
    Expenses
    $2,065,854
    Contributions
    $193,108
    Grants paid
    $0
  • 2022
    Revenue
    $561,417
    Expenses
    $2,006,743
    Contributions
    $9,585
    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
    $6,228,301
    Expenses
    $2,033,463
    Assets (EOY)
    $46,457,382
  • 2020 · 990

    Revenue
    $4,899,280
    Expenses
    $2,259,944
    Assets (EOY)
    $21,586,652
  • 2019 · 990

    Revenue
    $5,445,004
    Expenses
    $1,465,443
    Assets (EOY)
    $18,057,194
  • 2018 · 990

    Revenue
    $4,313,603
    Expenses
    $1,223,149
    Assets (EOY)
    $14,062,820
  • 2017 · 990

    Revenue
    $3,177,054
    Expenses
    $1,091,608
    Assets (EOY)
    $12,038,881
  • 2016 · 990

    Revenue
    $2,282,433
    Expenses
    $974,249
    Assets (EOY)
    $9,524,363
  • 2015 · 990

    Revenue
    $1,246,784
    Expenses
    $806,553
    Assets (EOY)
    $8,157,418
  • 2014 · 990

    Revenue
    $569,667
    Expenses
    $739,321
    Assets (EOY)
    $7,789,596
  • 2013 · 990

    Revenue
    $1,018,337
    Expenses
    $885,583
    Assets (EOY)
    $7,957,132
  • 2012 · 990

    Revenue
    not reported
    Expenses
    $648,179
    Assets (EOY)
    $7,825,023

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. Showing the 10 most recent; the API carries the rest.

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

No itemized grant names this organization as a recipient. Only grants over $5,000 are itemized, and only by filers of the full Form 990.

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 2024 return

Declared as related by

Taxable family

From Schedule R Parts I, III and IV: entities that legally are the filer, and taxable partnerships, corporations and trusts it is related to. These record ownership and control, not shared board members or money.

Related partnerships on its 2024 return

  • CSTO WINN MANAGER LLC

    MANAGE MULTI FAMILY LOW INCOME HOUSING PROPERTY · MA · 51% owned · share of income $3,687,168 · share of assets $2,682 · general or managing partner

  • CSTO WINN DEVELOPER LLC

    DEVELOP MULTI FAMILY LOW INCOME HOUSING PROPERTY · MA · 51% owned · share of income $130,916 · share of assets $43,716 · general or managing partner

  • EVA WHITE DEVELOPMENT COMPANY LLC

    DEVELOP MULTI FAMILY LOW INCOME HOUSING PROPERTY · MA · 51% owned

  • CSTO WINN OWNER LLC

    OWNER MULTI FAMILY LOW INCOME HOUSING PROPERTY · MA · 50.99% owned · share of income -$612 · share of assets $63,664,488

  • EVA WHITE GP LLC

    DEVELOP AND MANAGE MULTI FAMILY LOW INCOME HOUSING PROPERTY · MA · 99.99% owned · share of assets $4,500

Related corporations and trusts on its 2024 return

  • CSTO SUBSIDIARY LLC

    C · DEVELOPER OF HOUSING PROJECT · MA · 100% owned · share of income $3,748,806 · share of assets $5,703,581 · controlled entity

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 13 October 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 13 October 2026 and read 26 October 2026, for every organization at once. Returns through tax year 2024, the newest we have parsed for this organization.