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Nonprofit · EIN 20-6197750

HEARTSTONE FOUNDATION

Tax-exempt · BROOKLINE, MA 02445

Financials

$831K$1M2023$1.5M$1.4M2024$815K$984K2025
Revenue Expenses · by fiscal year end
Financials of HEARTSTONE FOUNDATION by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990-PF$814,961$984,319-$169,358$13,694,880$0$13,694,880
December 31, 2024990-PF$1,524,324$1,385,704$138,620$13,864,238$0$13,864,238
December 31, 2023990-PF$831,254$1,040,564-$209,310$13,725,618$0$13,725,618
Financial details: 990-PF for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$0
Dividends
$505,873
Net gain from sales of assets
$309,088

Expenses

Grants and similar amounts paid
$873,911
Compensation of officers, directors and key employees
$0
Disbursements for charitable purposes
$881,458
Excise tax on investment income
$10,737

Balance sheet and other

Total assets, start of year
$13,864,238
Total assets, end of year
$13,694,880
Total liabilities, end of year
$0
Net assets, end of year
$13,694,880
Fair market value of assets
$20,347,072
Qualifying distributions
$881,458
Net investment income
$814,961

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 December 31, 2025, highest compensation first.

NameTitleHours / weekCompensation
JULIE SWARTZ
42 FISHER AVENUE, BROOKLINE, MA 02445
TRUSTEE1$0
990-PF for the year ended December 31, 2024: 1 people
NameTitleHours / weekCompensation
JULIE SWARTZ
42 FISHER AVENUE, BROOKLINE, MA 02445
TRUSTEE1$0
990-PF for the year ended December 31, 2023: 1 people
NameTitleHours / weekCompensation
JULIE SWARTZ
42 FISHER AVENUE, BROOKLINE, MA 02445
TRUSTEE1$0

Address and contacts

Address (IRS master file)
42 FISHER AVE, BROOKLINE, MA 02445-5703
In care of
% DELOITTE TAX P CRAFTON
Signed the 990-PF
JULIE SWARTZ, TRUSTEE
Phone
(617) 413-3736
Return prepared by
DAIGLE & ASSOCIATES LLP

What it must file and when

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

Tax yearYear endedDueIRS public records
2025December 31, 2025May 15, 2026990-PF on file
2024December 31, 2024May 15, 2025990-PF on file
2023December 31, 2023May 15, 2024990-PF on file

IRS record

EIN
20-6197750
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
2004
Accounting year ends
December
Files
Form 990-PF
Assets (IRS master file)
$13,694,880
Income (IRS master file)
$1,502,699

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-PFDecember 2025$814,961$984,319$13,694,880IRS
990-PFDecember 2024$1,524,324$1,385,704$13,864,238XML
990-PFDecember 2023$831,254$1,040,564$13,725,618XML
990-PFDecember 2022–––IRS
990-PFDecember 2021–––IRS
990-PFDecember 2020–––IRS
990-PFDecember 2018–––IRS
990-PFDecember 2017–––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 20-6197750).

Questions about HEARTSTONE FOUNDATION

What is the EIN of HEARTSTONE FOUNDATION?
The employer identification number (EIN) of HEARTSTONE FOUNDATION is 20-6197750.
Is HEARTSTONE FOUNDATION tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2004.
Are donations to HEARTSTONE FOUNDATION tax-deductible?
Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
Which annual return does HEARTSTONE FOUNDATION file?
Form 990-PF. Private foundations file every year.
When is the next return of HEARTSTONE FOUNDATION due?
The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did HEARTSTONE FOUNDATION last file with the IRS?
The latest return in the IRS public files is the 990-PF for the year ended December 2025.
Who are the officers and directors of HEARTSTONE FOUNDATION?
The 990-PF for the year ended December 31, 2025 lists 1 person; 0 received compensation from the organization.
How much revenue does HEARTSTONE FOUNDATION have?
On its 990-PF for the year ended December 31, 2025 it reported revenue of $814,961, expenses of $984,319 and total assets of $13,694,880 at year end.

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