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Nonprofit · EIN 13-3828470

MOUNT KISCO HISTORICAL SOCIETY

Tax-exempt (reinstated) · MOUNT KISCO, NY 10549

Address and contacts

Address (IRS master file)
40 GREEN ST, MOUNT KISCO, NY 10549-2306
Mailing address (990-N for 2025)
40 Green Street, Mount Kisco NY 10549
Principal officer (990-N for 2025)
Ralph Vigliotti, 26 Meadowbrook Lane, Mt Kisco NY 10549

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 March, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025March 31, 2026August 17, 2026990-N on file
2024March 31, 2025August 15, 2025990-N on file
2023March 31, 2024August 15, 2024990-N on file

File the 2026 990-N for MOUNT KISCO HISTORICAL SOCIETY

Due August 16, 2027 · e-filed with the IRS by 990.tax, an IRS-authorized e-file provider

IRS record

EIN
13-3828470
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
2016
Accounting year ends
March
Files
Form 990-N (e-Postcard)

Revocation and reinstatement

Exemption revoked
August 15, 2013
Posted by the IRS
November 11, 2013
Reinstated
Effective February 15, 2016

From the IRS automatic revocation list: organizations that did not file a required return or e-Postcard for three consecutive years.

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Ralph Vigliotti
March 31, 2026≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Ralph Vigliotti
March 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Ralph Vigliotti
March 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Ralph Vigliotti
March 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Ralph Vigliotti
March 31, 2021≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: Eva Marshall
March 31, 2020≤ $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 13-3828470).

Questions about MOUNT KISCO HISTORICAL SOCIETY

What is the EIN of MOUNT KISCO HISTORICAL SOCIETY?
The employer identification number (EIN) of MOUNT KISCO HISTORICAL SOCIETY is 13-3828470.
Is MOUNT KISCO HISTORICAL SOCIETY tax-exempt?
Yes. The IRS revoked its exemption on August 15, 2013 and reinstated it effective February 15, 2016.
Are donations to MOUNT KISCO HISTORICAL SOCIETY tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does MOUNT KISCO HISTORICAL SOCIETY file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of MOUNT KISCO HISTORICAL SOCIETY due?
The return for tax year 2026 (the year ending March 31, 2027) is due August 16, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did MOUNT KISCO HISTORICAL SOCIETY last file with the IRS?
The latest return in the IRS public files is the 990-N for 2025 for the year ended March 31, 2026.
Who is the principal officer of MOUNT KISCO HISTORICAL SOCIETY?
The 990-N for 2025 names Ralph Vigliotti.

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