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

Nonprofit · EIN 20-3612090

AMERICAN DENTAL ASSISTANTS ASSOCIATION

Also known as CHATTANOOGA AREA DENTAL ASSISTANTS

Tax-exempt (reinstated) · OOLTEWAH, TN 37363

Address and contacts

Address (IRS master file)
8156 SAVANNAH HILLS DR, OOLTEWAH, TN 37363-9102
In care of
% CHRISTINA KIRSTEIN
Mailing address (990-N for 2025)
8156 Savannah Hills Drive, Ooltewah TN 37363
Principal officer (990-N for 2025)
Mark Matney, 8156 Savannah Hills Drive, Ooltewah TN 37363

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

Tax yearYear endedDueIRS public records
2025April 30, 2026September 15, 2026990-N on file
2024April 30, 2025September 15, 2025990-N on file
2023April 30, 2024September 16, 2024990-N on file

File the 2026 990-N for AMERICAN DENTAL ASSISTANTS ASSOCIATION

Due September 15, 2027 · e-filed with the IRS by 990.tax, an IRS-authorized e-file provider

IRS record

EIN
20-3612090
Tax-exempt status
501(c)(6): Business league or chamber of commerce
Donations deductible
No
Exempt since
1969
Accounting year ends
April
Files
Form 990-N (e-Postcard)
Category (NTEE)
Education (B99)

Revocation and reinstatement

Exemption revoked
September 15, 2010
Posted by the IRS
June 17, 2014
Reinstated
Effective September 15, 2010

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: Mark Matney
April 30, 2026≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Mark Matney
April 30, 2025≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Mark Matney
April 30, 2024≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Mark Matney
April 30, 2023≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Mark Matney
April 30, 2021≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: Hannah Turner
April 30, 2020≤ $50,000 receipts––e-Postcard
990-N for 2018
Officer: Hannah Turner
April 30, 2019≤ $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 20-3612090).

Questions about AMERICAN DENTAL ASSISTANTS ASSOCIATION

What is the EIN of AMERICAN DENTAL ASSISTANTS ASSOCIATION?
The employer identification number (EIN) of AMERICAN DENTAL ASSISTANTS ASSOCIATION is 20-3612090.
Is AMERICAN DENTAL ASSISTANTS ASSOCIATION tax-exempt?
Yes. The IRS revoked its exemption on September 15, 2010 and reinstated it effective September 15, 2010.
Are donations to AMERICAN DENTAL ASSISTANTS ASSOCIATION tax-deductible?
No. The IRS master file says contributions to it are not deductible.
Which annual return does AMERICAN DENTAL ASSISTANTS ASSOCIATION file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of AMERICAN DENTAL ASSISTANTS ASSOCIATION due?
The return for tax year 2026 (the year ending April 30, 2027) is due September 15, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did AMERICAN DENTAL ASSISTANTS ASSOCIATION last file with the IRS?
The latest return in the IRS public files is the 990-N for 2025 for the year ended April 30, 2026.
Who is the principal officer of AMERICAN DENTAL ASSISTANTS ASSOCIATION?
The 990-N for 2025 names Mark Matney.

Other nonprofits in OOLTEWAH

All nonprofits in OOLTEWAH · Tennessee · Education