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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 04-3561728

MRHK ORG INC

Tax-exempt · JAMAICA PLAIN, MA 02130

Address and contacts

Address (IRS master file)
72 JAMAICA ST, JAMAICA PLAIN, MA 02130-3820
In care of
% ESTHER LEIDOLF
Mailing address (990-N for 2025)
72 Jamaica Street, Jamaica Plain MA 02130
Principal officer (990-N for 2025)
Esther Leidolf, 72 Jamaica Street, Jamaica Plain MA 02130

What it must file and when

IRS records say it files Form 990-N (e-Postcard). Gross receipts normally $50,000 or less. 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-N on file
2024December 31, 2024May 15, 2025990-N on file
2023December 31, 2023May 15, 2024990-N on file

File the 2026 990-N for MRHK ORG INC

Due May 17, 2027 · e-filed with the IRS by 990.tax, an IRS-authorized e-file provider

IRS record

EIN
04-3561728
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (170(b)(1)(A)(vi))
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
2001
Accounting year ends
December
Files
Form 990-N (e-Postcard)
Category (NTEE)
Medical research (H80)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Esther Leidolf
December 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Esther Leidolf
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Esther Leidolf
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Esther Leidolf
December 31, 2022≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Esther Leidolf
December 31, 2020≤ $50,000 receipts––e-Postcard
990-N for 2018
Officer: Esther Leidolf
December 31, 2018≤ $50,000 receipts––e-Postcard

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 04-3561728).

Questions about MRHK ORG INC

What is the EIN of MRHK ORG INC?
The employer identification number (EIN) of MRHK ORG INC is 04-3561728.
Is MRHK ORG INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2001.
Are donations to MRHK ORG INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does MRHK ORG INC file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of MRHK ORG INC 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 MRHK ORG INC last file with the IRS?
The latest return in the IRS public files is the 990-N for 2025 for the year ended December 31, 2025.
Who is the principal officer of MRHK ORG INC?
The 990-N for 2025 names Esther Leidolf.

Other nonprofits in JAMAICA PLAIN

All nonprofits in JAMAICA PLAIN · Massachusetts · Medical research