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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 81-3499515

BOSTON CHAPTER OF THE SOCIETY OF PETROPHYSICISTS AND WELL LOG

Also known as SPWLA OF BOSTON

Tax-exempt (reinstated) · CAMBRIDGE, MA 02141

Address and contacts

Address (IRS master file)
PO BOX, CAMBRIDGE, MA 02141-0000
In care of
% PAUL CRADDOCK
Mailing address (990-N for 2024)
PO Box, Cambridge MA 02141
Principal officer (990-N for 2024)
Shitong Zhu, 400 Technology Square, Cambridge MA 02139

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, 2025990-N on file
2023December 31, 2023May 15, 2024990-N on file

File the 2025 990-N for BOSTON CHAPTER OF THE SOCIETY OF PETROPHYSICISTS AND WELL LOG

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

IRS record

EIN
81-3499515
Tax-exempt status
501(c)(6): Business league or chamber of commerce
Donations deductible
No
Exempt since
2020
Accounting year ends
December
Files
Form 990-N (e-Postcard)

Revocation and reinstatement

Exemption revoked
September 15, 2019
Posted by the IRS
February 1, 2025
Reinstated
Effective September 15, 2019

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 2024
Officer: Shitong Zhu
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Shitong Zhu
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Shitong Zhu
December 31, 2022≤ $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 81-3499515).

Questions about BOSTON CHAPTER OF THE SOCIETY OF PETROPHYSICISTS AND WELL LOG

What is the EIN of BOSTON CHAPTER OF THE SOCIETY OF PETROPHYSICISTS AND WELL LOG?
The employer identification number (EIN) of BOSTON CHAPTER OF THE SOCIETY OF PETROPHYSICISTS AND WELL LOG is 81-3499515.
Is BOSTON CHAPTER OF THE SOCIETY OF PETROPHYSICISTS AND WELL LOG tax-exempt?
Yes. The IRS revoked its exemption on September 15, 2019 and reinstated it effective September 15, 2019.
Are donations to BOSTON CHAPTER OF THE SOCIETY OF PETROPHYSICISTS AND WELL LOG tax-deductible?
No. The IRS master file says contributions to it are not deductible.
Which annual return does BOSTON CHAPTER OF THE SOCIETY OF PETROPHYSICISTS AND WELL LOG file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of BOSTON CHAPTER OF THE SOCIETY OF PETROPHYSICISTS AND WELL LOG 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 BOSTON CHAPTER OF THE SOCIETY OF PETROPHYSICISTS AND WELL LOG last file with the IRS?
The latest return in the IRS public files is the 990-N for 2024 for the year ended December 31, 2024.
Who is the principal officer of BOSTON CHAPTER OF THE SOCIETY OF PETROPHYSICISTS AND WELL LOG?
The 990-N for 2024 names Shitong Zhu.

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