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

Nonprofit · EIN 33-4261984

CORNERSTONE MONTESSORI PARENT TEACHER ORGANIZATION

Tax-exempt · SILVERDALE, WA 98383

Address and contacts

Address (IRS master file)
PO BOX 1396, SILVERDALE, WA 98383-1396
Mailing address (990-N for 2025)
PO Box 1396, Silverdale WA 98383
Principal officer (990-N for 2025)
Maelonni Thompson, PO Box 1396, Silverdale WA 98383

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, 2025Check at the IRS
2023December 31, 2023May 15, 2024Check at the IRS

File the 2026 990-N for CORNERSTONE MONTESSORI PARENT TEACHER ORGANIZATION

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

IRS record

EIN
33-4261984
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
2025
Accounting year ends
December
Files
Form 990-N (e-Postcard)
Category (NTEE)
Education (B94)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Maelonni Thompson
December 31, 2025≤ $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 33-4261984).

Questions about CORNERSTONE MONTESSORI PARENT TEACHER ORGANIZATION

What is the EIN of CORNERSTONE MONTESSORI PARENT TEACHER ORGANIZATION?
The employer identification number (EIN) of CORNERSTONE MONTESSORI PARENT TEACHER ORGANIZATION is 33-4261984.
Is CORNERSTONE MONTESSORI PARENT TEACHER ORGANIZATION tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2025.
Are donations to CORNERSTONE MONTESSORI PARENT TEACHER ORGANIZATION tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does CORNERSTONE MONTESSORI PARENT TEACHER ORGANIZATION file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of CORNERSTONE MONTESSORI PARENT TEACHER ORGANIZATION 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 CORNERSTONE MONTESSORI PARENT TEACHER ORGANIZATION 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 CORNERSTONE MONTESSORI PARENT TEACHER ORGANIZATION?
The 990-N for 2025 names Maelonni Thompson.

Other nonprofits in SILVERDALE

All nonprofits in SILVERDALE · Washington · Education