Skip to main content
IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 20-3867727

SIDMAN FAMILY FOUNDATION

Tax-exempt · BOSTON, MA 02116

Financials

−$235K$1.1M2023$4M$1.5M2024
Revenue Expenses · by fiscal year end
Financials of SIDMAN FAMILY FOUNDATION by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
June 30, 2025990-PF$4,001,573$1,494,900$2,506,673$7,035,526$0$7,035,526
June 30, 2024990-PF-$235,266$1,099,594-$1,334,860$4,587,253$0$4,587,253
Financial details: 990-PF for the year ended June 30, 2025

Revenue

Dividends
$121,066
Net gain from sales of assets
$3,877,212
Other income
$3,295

Expenses

Grants and similar amounts paid
$1,434,080
Compensation of officers, directors and key employees
$0
Disbursements for charitable purposes
$1,443,524
Excise tax on investment income
$54,908

Balance sheet and other

Total assets, start of year
$4,587,253
Total assets, end of year
$7,035,526
Total liabilities, end of year
$0
Net assets, end of year
$7,035,526
Fair market value of assets
$9,969,145
Qualifying distributions
$1,443,524
Net investment income
$4,001,573

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-PF for the year ended June 30, 2025, highest compensation first.

NameTitleHours / weekCompensation
PAULA M SIDMAN
1 SLOANS CURVE DRIVE, PALM BEACH, FL 33480
PRES/DIR5$0
HOPE SIDMAN
6 NEWBURY ST 5TH FLOOR, BOSTON, MA 02116
TREAS/DIR5$0
MATHEW K SIDMAN
297 COMMONWEALTH AVE, BOSTON, MA 02116
ASST TREAS/C5$0
990-PF for the year ended June 30, 2024: 3 people
NameTitleHours / weekCompensation
PAULA M SIDMAN
1 SLOANS CURVE DRIVE, PALM BEACH, FL 33480
PRES/DIR5$0
HOPE SIDMAN
6 NEWBURY ST 5TH FLOOR, BOSTON, MA 02116
TREAS/DIR5$0
MATHEW K SIDMAN
297 COMMONWEALTH AVE, BOSTON, MA 02116
ASST TREAS/C5$0

Address and contacts

Address (IRS master file)
8 NEWBURY ST STE 5, BOSTON, MA 02116-3260
In care of
% JILL MCGAFFIGAN
Signed the 990-PF
HOPE SIDMAN, PRESIDENT
Phone
(646) 213-5100
Return prepared by
ANDERSEN TAX LLC

What it must file and when

IRS records say it files Form 990-PF. Private foundations file every year. Its accounting year ends in June, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025June 30, 2026November 16, 2026Not due yet
2024June 30, 2025November 17, 2025990-PF on file
2023June 30, 2024November 15, 2024990-PF on file

IRS record

EIN
20-3867727
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Private non-operating foundation
Donations deductible (Pub 78)
Private foundation, 30% limit
Exempt since
2007
Accounting year ends
June
Files
Form 990-PF
Assets (IRS master file)
$7,035,526
Income (IRS master file)
$124,361

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-PFJune 2025$4,001,573$1,494,900$7,035,526IRS
990-TJune 2025–––IRS
990-PFJune 2024-$235,266$1,099,594$4,587,253XML
990-TJune 2024–––IRS
990-PFJune 2023–––IRS
990-TJune 2023–––IRS
990-PFJune 2022–––IRS
990-TJune 2022–––IRS
990-PFJune 2021–––IRS
990-TJune 2021–––IRS
990-PFJune 2019–––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 20-3867727).

Questions about SIDMAN FAMILY FOUNDATION

What is the EIN of SIDMAN FAMILY FOUNDATION?
The employer identification number (EIN) of SIDMAN FAMILY FOUNDATION is 20-3867727.
Is SIDMAN FAMILY FOUNDATION tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2007.
Are donations to SIDMAN FAMILY FOUNDATION tax-deductible?
Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
Which annual return does SIDMAN FAMILY FOUNDATION file?
Form 990-PF. Private foundations file every year.
When is the next return of SIDMAN FAMILY FOUNDATION due?
The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did SIDMAN FAMILY FOUNDATION last file with the IRS?
The latest return in the IRS public files is the 990-PF for the year ended June 2025.
Who are the officers and directors of SIDMAN FAMILY FOUNDATION?
The 990-PF for the year ended June 30, 2025 lists 3 people; 0 received compensation from the organization.
How much revenue does SIDMAN FAMILY FOUNDATION have?
On its 990-PF for the year ended June 30, 2025 it reported revenue of $4,001,573, expenses of $1,494,900 and total assets of $7,035,526 at year end.

Other nonprofits in BOSTON

All nonprofits in BOSTON · Massachusetts · Philanthropy, voluntarism and grantmaking foundations