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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 20-5660943

ARCHAEOLOGY SYNCHRONISMS RESEARCHFOUNDATION

Tax-exempt · GREENEVILLE, TN 37743

Address and contacts

Address (IRS master file)
8650 107 CUTOFF, GREENEVILLE, TN 37743-4798
In care of
% CHERYL MATHEWS
Mailing address (990-N for 2023)
8650 107 Cutoff, Greeneville TN 37743
Principal officer (990-N for 2023)
Leroy Wannamaker, 368 Culver Road, Limestone TN 37681

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, 2025Not on file
2023December 31, 2023May 15, 2024990-N on file

File the 2025 990-N for ARCHAEOLOGY SYNCHRONISMS RESEARCHFOUNDATION

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

IRS record

EIN
20-5660943
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
2007
Accounting year ends
December
Files
Form 990-N (e-Postcard)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2023
Officer: Leroy Wannamaker
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2021
Officer: Leroy Wannamaker
December 31, 2021≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Leroy Wannamaker
December 31, 2020≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: Leroy Wanamaker
December 31, 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 20-5660943).

Questions about ARCHAEOLOGY SYNCHRONISMS RESEARCHFOUNDATION

What is the EIN of ARCHAEOLOGY SYNCHRONISMS RESEARCHFOUNDATION?
The employer identification number (EIN) of ARCHAEOLOGY SYNCHRONISMS RESEARCHFOUNDATION is 20-5660943.
Is ARCHAEOLOGY SYNCHRONISMS RESEARCHFOUNDATION tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2007.
Are donations to ARCHAEOLOGY SYNCHRONISMS RESEARCHFOUNDATION tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does ARCHAEOLOGY SYNCHRONISMS RESEARCHFOUNDATION file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of ARCHAEOLOGY SYNCHRONISMS RESEARCHFOUNDATION 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 ARCHAEOLOGY SYNCHRONISMS RESEARCHFOUNDATION last file with the IRS?
The latest return in the IRS public files is the 990-N for 2023 for the year ended December 31, 2023.
Who is the principal officer of ARCHAEOLOGY SYNCHRONISMS RESEARCHFOUNDATION?
The 990-N for 2023 names Leroy Wannamaker.

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