Nonprofit · EIN 04-1105450
BOSTON LIBRARY SOCIETY
Tax-exempt · BOSTON, MA 02108
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| September 30, 2025 | 990 | $51,945 | $54,759 | -$2,814 | $1,305,070 | $0 | $1,305,070 |
| September 30, 2024 | 990 | $38,495 | $54,759 | -$16,264 | $1,190,664 | $0 | $1,190,664 |
| September 30, 2023 | 990 | $29,627 | $54,759 | -$25,132 | $987,552 | $0 | $987,552 |
Financial details: 990 for the year ended September 30, 2025
Revenue
- Contributions, gifts and grants
- $0
- Program service revenue
- $0
- Investment income
- $51,945
- Net gain from sales of assets
- $25,751
- Other revenue
- $0
Expenses
- Grants and similar amounts paid
- $54,759
- Salaries, compensation and benefits (total)
- $0
- Professional fundraising fees
- $0
- Program services (functional)
- $54,759
Balance sheet and other
- Total assets, start of year
- $1,190,664
- Total assets, end of year
- $1,305,070
- Total liabilities, end of year
- $0
- Net assets, end of year
- $1,305,070
- Publicly traded securities
- $1,305,070
- Net assets without donor restrictions
- $877,017
- Net assets with donor restrictions
- $428,053
- Gross receipts
- $207,877
- Employees
- 0
- Volunteers
- 10
- Year formed
- 1794
- State of legal domicile
- MA
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990 for the year ended September 30, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation | From related orgs | Other / benefits |
|---|---|---|---|---|---|
| LEAH ROSOVSKY | DIRECTOR Officer | 2 | $0 | $362,733 | $30,675 |
| CHRISTOPHER J BOUDROT | DIRECTOR OF FINANCE Officer | 2 | $0 | $180,811 | $39,466 |
| ARTHUR B PAGE | SECRETARY Trustee or director, Officer | 2 | $0 | $0 | $0 |
| F JAVIER CEVALLOS | TREASURER Trustee or director, Officer | 2 | $0 | $0 | $0 |
| EARL M COLLIER JR | TRUSTEE Trustee or director | 2 | $0 | $0 | $0 |
| ROGER HAYNES | TRUSTEE Trustee or director | 2 | $0 | $0 | $0 |
| AUSTIN V SHAPARD | TRUSTEE Trustee or director | 2 | $0 | $0 | $0 |
| CREELEA HENDERSON PANGARO | TRUSTEE Trustee or director | 2 | $0 | $0 | $0 |
| AMY RYAN | TRUSTEE Trustee or director | 2 | $0 | $0 | $0 |
| MELISSA FETTER | TRUSTEE Trustee or director | 2 | $0 | $0 | $0 |
| SUSAN WEATHERBIE | TRUSTEE Trustee or director | 2 | $0 | $0 | $0 |
| TIMOTHY W DIGGINS | TRUSTEE Trustee or director | 2 | $0 | $0 | $0 |
990 for the year ended September 30, 2024: 12 people
| Name | Title | Hours / week | Compensation | From related orgs | Other / benefits |
|---|---|---|---|---|---|
| LEAH ROSOVSKY | DIRECTOR Officer | 2 | $0 | $352,724 | $30,048 |
| CHRISTOPHER BOUDROT | DIRECTOR OF FINANCE Officer | 2 | $0 | $167,341 | $43,058 |
| ARTHUR B PAGE | SECRETARY Trustee or director, Officer | 2 | $0 | $0 | $0 |
| JAVIER CEVALLOS | TREASURER Trustee or director, Officer | 2 | $0 | $0 | $0 |
| EARL M COLLIER JR | TRUSTEE Trustee or director | 2 | $0 | $0 | $0 |
| ROGER HAYNES | TRUSTEE Trustee or director | 2 | $0 | $0 | $0 |
| AUSTIN V SHAPARD | TRUSTEE Trustee or director | 2 | $0 | $0 | $0 |
| CREELEA HENDERSON PANGARO | TRUSTEE Trustee or director | 2 | $0 | $0 | $0 |
| AMY RYAN | TRUSTEE Trustee or director | 2 | $0 | $0 | $0 |
| MELISSA FETTER | TRUSTEE Trustee or director | 2 | $0 | $0 | $0 |
| SUSAN WEATHERBIE | TRUSTEE Trustee or director | 2 | $0 | $0 | $0 |
| TIMOTHY W DIGGINS | TRUSTEE Trustee or director | 2 | $0 | $0 | $0 |
990 for the year ended September 30, 2023: 14 people
| Name | Title | Hours / week | Compensation | From related orgs | Other / benefits |
|---|---|---|---|---|---|
| LEAH ROSOVSKY | DIRECTOR Officer | 2 | $0 | $327,847 | $27,742 |
| CHRISTOPHER BOUDROT | DIRECTOR OF FINANCE Officer | 2 | $0 | $156,550 | $39,367 |
| J MARK ENRIQUEZ | TREASURER (UNTIL 3/27/23) Trustee or director, Officer | 2 | $0 | $0 | $0 |
| ARTHUR B PAGE | SECRETARY Trustee or director, Officer | 2 | $0 | $0 | $0 |
| EARL M COLLIER JR | TRUSTEE Trustee or director | 2 | $0 | $0 | $0 |
| ROGER HAYNES | TRUSTEE Trustee or director | 2 | $0 | $0 | $0 |
| AUSTIN V SHAPARD | TRUSTEE Trustee or director | 2 | $0 | $0 | $0 |
| TERRANCE P MCGUIRE | TRUSTEE (UNTIL 3/27/23) Trustee or director | 2 | $0 | $0 | $0 |
| CREELEA HENDERSON PANGARO | TRUSTEE Trustee or director | 2 | $0 | $0 | $0 |
| AMY RYAN | TRUSTEE Trustee or director | 2 | $0 | $0 | $0 |
| JAVIER CEVALLOS | TREASURER Trustee or director, Officer | 2 | $0 | $0 | $0 |
| MELISSA FETTER | TRUSTEE Trustee or director | 2 | $0 | $0 | $0 |
| SUSAN WEATHERBIE | TRUSTEE Trustee or director | 2 | $0 | $0 | $0 |
| TIMOTHY W DIGGINS | TRUSTEE Trustee or director | 2 | $0 | $0 | $0 |
Address and contacts
- Address (IRS master file)
- 10 BEACON ST # 12, BOSTON, MA 02108-3764
- In care of
- % G M RODDY JR
- Principal officer (990 for 2024)
- LEAH ROSOVSKY, 10 1/2 BEACON STREET, BOSTON, MA 02108
- Signed the 990
- F JAVIER CEVALLOS, TREASURER
- Phone
- (617) 227-0270
- Website
- WWW.BOSTONATHENAEUM.ORG
- Return prepared by
- AAFCPAS INC
Mission
SEE SCHEDULE O.THE BOSTON LIBRARY SOCIETY ALLOCATES FUNDS TO THE BOSTON ATHENAEUM, A TAX-EXEMPT ORGANIZATION. THE BOSTON ATHENAEUM IS AN INDEPENDENT LIBRARY COMMITTED TO MAINTAINING AND AUGMENTING ITS SIGNIFICANT COLLECTIONS OF HISTORY, LITERATURE AND ART; TO SERVING A BROAD COMMUNITY OF SCHOLARS AS A CENTER FOR RESEARCH; TO SERVING ITS MEMBERSHIP AND THE PUBLIC NOT ONLY THROUGH ITS CIRCULATING AND REFERENCE COLLECTIONS BUT ALSO THROUGH LECTURES, EXHIBITIONS AND PUBLICATIONS; AND TO PRESERVING AND ENHANCING ITS NATIONAL HISTORIC LANDMARK BUILDING.
Program accomplishments
- THE BOSTON LIBRARY SOCIETY ALLOCATES FUNDS TO THE BOSTON ATHENAEUM, A TAX-EXEMPT ORGANIZATION. THE BOSTON ATHENAEUM IS AN INDEPENDENT LIBRARY COMMITTED TO MAINTAINING AND AUGMENTING ITS SIGNIFICANT COLLECTIONS OF HISTORY, LITERATURE AND ART; TO SERVING A BROAD COMMUNITY OF SCHOLARS AS A CENTER FOR RESEARCH; TO SERVING ITS MEMBERSHIP AND THE PUBLIC NOT ONLY THROUGH ITS CIRCULATING AND REFERENCE COLLECTIONS BUT ALSO THROUGH LECTURES, EXHIBITIONS AND PUBLICATIONS; AND TO PRESERVING AND ENHANCING ITS NATIONAL HISTORIC LANDMARK BUILDING.Expenses $54,759 · grants $54,759
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in September, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | September 30, 2026 | February 15, 2027 | Not due yet |
| 2024 | September 30, 2025 | February 16, 2026 | 990 on file |
| 2023 | September 30, 2024 | February 17, 2025 | 990 on file |
IRS record
- EIN
- 04-1105450
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (509(a)(2))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 1942
- Accounting year ends
- September
- Files
- Form 990 or 990-EZ
- Assets (IRS master file)
- $1,305,070
- Income (IRS master file)
- $207,877
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | September 2025 | $51,945 | $54,759 | $1,305,070 | XML |
| 990 | September 2024 | $38,495 | $54,759 | $1,190,664 | XML |
| 990-T | September 2024 | – | – | – | IRS |
| 990 | September 2023 | $29,627 | $54,759 | $987,552 | XML |
| 990-T | September 2023 | – | – | – | IRS |
| 990 | September 2022 | $33,339 | $51,172 | $897,842 | IRS |
| 990-T | September 2022 | – | – | – | IRS |
| 990 | September 2021 | – | – | – | IRS |
| 990-T | September 2021 | – | – | – | IRS |
| 990 | September 2020 | – | – | – | IRS |
| 990 | September 2019 | – | – | – | IRS |
| 990 | September 2018 | – | – | – | IRS |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 04-1105450).
Questions about BOSTON LIBRARY SOCIETY
- What is the EIN of BOSTON LIBRARY SOCIETY?
- The employer identification number (EIN) of BOSTON LIBRARY SOCIETY is 04-1105450.
- Is BOSTON LIBRARY SOCIETY tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1942.
- Are donations to BOSTON LIBRARY SOCIETY tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does BOSTON LIBRARY SOCIETY file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of BOSTON LIBRARY SOCIETY due?
- The return for tax year 2025 (the year ending September 30, 2026) is due February 15, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did BOSTON LIBRARY SOCIETY last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended September 2025.
- Who is the principal officer of BOSTON LIBRARY SOCIETY?
- The 990 for the year ended September 30, 2025 names LEAH ROSOVSKY.
- Who are the officers and directors of BOSTON LIBRARY SOCIETY?
- The 990 for the year ended September 30, 2025 lists 12 people; 0 received compensation from the organization.
- How much revenue does BOSTON LIBRARY SOCIETY have?
- On its 990 for the year ended September 30, 2025 it reported revenue of $51,945, expenses of $54,759 and total assets of $1,305,070 at year end.
Other nonprofits in BOSTON
- FIDELITY INVESTMENTS CHARITABLE GIFT FUND EIN 11-0303001 · last filed 990 for 2025
- DANA-FARBER CANCER INSTITUTE EIN 04-2263040 · last filed 990 for 2025
- CHILDRENS HOSPITAL CORPORATION EIN 04-2774441 · last filed 990 for 2025
- TRUSTEES OF BOSTON UNIVERSITY EIN 04-2103547 · last filed 990-N for 2024
- NORTHEASTERN UNIVERSITY EIN 04-1679980 · last filed 990-N for 2025
- BOSTON MEDICAL CENTER CORPORATION EIN 04-3314093 · last filed 990 for 2025
- COMMONWEALTH CARE ALLIANCE INC EIN 04-3756900 · last filed 990 for 2024
- HARVARD MANAGEMENT PRIVATE EQUITY CORPORATION EIN 04-3070522 · last filed 990 for 2025