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Nonprofit · EIN 46-4399692

INTERNATIONAL ACADEMY OF PERIODONTOLOGY INC

Tax-exempt (reinstated) · BRIGHTON, MA 02135

Address and contacts

Address (IRS master file)
150 B BIGELOW ST, BRIGHTON, MA 02135-1743
In care of
% FORSYTH INSTITUTE
Mailing address (990-N for 2016)
245 FIRST STREET, CAMBRIDGE MA 02142
Principal officer (990-N for 2016)
IBRAHIM ALPDOGAN KANTARCI, 245 FIRST STREET, CAMBRIDGE MA 02142

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, 2026Not on file
2024December 31, 2024May 15, 2025Check at the IRS
2023December 31, 2023May 15, 2024Check at the IRS

File the 2025 990-N for INTERNATIONAL ACADEMY OF PERIODONTOLOGY INC

Due May 15, 2026 · e-filed with the IRS by 990.tax, an IRS-authorized e-file provider

IRS record

EIN
46-4399692
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
2026
Accounting year ends
December
Files
Form 990-N (e-Postcard)
Assets (IRS master file)
$58,792
Income (IRS master file)
$226,225

Revocation and reinstatement

Exemption revoked
May 15, 2023
Posted by the IRS
January 17, 2026
Reinstated
Effective May 15, 2023

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-EZDecember 2018–––IRS
990-N for 2016
Officer: IBRAHIM ALPDOGAN KANTARCI
December 31, 2016≤ $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 46-4399692).

Questions about INTERNATIONAL ACADEMY OF PERIODONTOLOGY INC

What is the EIN of INTERNATIONAL ACADEMY OF PERIODONTOLOGY INC?
The employer identification number (EIN) of INTERNATIONAL ACADEMY OF PERIODONTOLOGY INC is 46-4399692.
Is INTERNATIONAL ACADEMY OF PERIODONTOLOGY INC tax-exempt?
Yes. The IRS revoked its exemption on May 15, 2023 and reinstated it effective May 15, 2023.
Are donations to INTERNATIONAL ACADEMY OF PERIODONTOLOGY INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does INTERNATIONAL ACADEMY OF PERIODONTOLOGY INC file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of INTERNATIONAL ACADEMY OF PERIODONTOLOGY 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 INTERNATIONAL ACADEMY OF PERIODONTOLOGY INC last file with the IRS?
The latest return in the IRS public files is the 990-EZ for the year ended December 2018.
Who is the principal officer of INTERNATIONAL ACADEMY OF PERIODONTOLOGY INC?
The 990-N for 2016 names IBRAHIM ALPDOGAN KANTARCI.

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