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Nonprofit · EIN 35-1082961

MORTAR BOARD INC

Also known as NATIONAL OFFICE

Tax-exempt · COLUMBUS, OH 43212

Address and contacts

Address (IRS master file)
1200 CHAMBERS RD STE 201, COLUMBUS, OH 43212-1703
In care of
% JANE A HAMBLIN

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. 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, 2026Not on file
2024December 31, 2024May 15, 2025990 on file
2023December 31, 2023May 15, 2024990 on file

IRS record

EIN
35-1082961
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (509(a)(2))
Donations deductible (Pub 78)
Group exemption
Exempt since
1945
Accounting year ends
December
Files
Form 990 or 990-EZ
Category (NTEE)
Education (B43I)
Group exemption
0910 (86 member organizations)
Assets (IRS master file)
$44,005
Income (IRS master file)
$539,148

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2024–––IRS
990December 2023–––IRS
990December 2022$431,886$514,338$209,066IRS
990December 2021$513,485$460,297$330,137IRS
990December 2020–––IRS
990December 2018–––IRS
990December 2017–––IRS

990-N: the IRS publishes only the latest e-Postcard per organization; earlier years appear here as 990.tax collects the monthly files. 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.

Questions about MORTAR BOARD INC

What is the EIN of MORTAR BOARD INC?
The employer identification number (EIN) of MORTAR BOARD INC is 35-1082961.
Is MORTAR BOARD INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1945.
Are donations to MORTAR BOARD INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Group exemption).
Which annual return does MORTAR BOARD INC file?
Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
When is the next return of MORTAR BOARD INC due?
The return for tax year 2025 (the year ending December 31, 2025) is due May 15, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did MORTAR BOARD INC last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended December 2024.

Organizations in its group exemption (86)

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