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Nonprofit · EIN 61-1961189

THINK WAVES

Tax-exempt (reinstated) · CARDIFF, CA 92007

Address and contacts

Address (IRS master file)
PO BOX 601, CARDIFF, CA 92007-0601
Mailing address (990-N for 2025)
PO Box 601, cardiff by the sea CA 92007
Principal officer (990-N for 2025)
Milton Bradley Willis, PO Box 601, cardiff by the sea CA 92007

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, 2026990-N on file
2024December 31, 2024May 15, 2025No data
2023December 31, 2023May 15, 2024No data

IRS record

EIN
61-1961189
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
2024
Accounting year ends
December
Files
Form 990-N (e-Postcard)
Category (NTEE)
Education (B90)

Revocation and reinstatement

Exemption revoked
February 15, 2023
Posted by the IRS
May 8, 2023
Reinstated
Effective February 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-N for 2025
Officer: Milton Bradley Willis
December 31, 2025≤ $50,000 receipts––e-Postcard

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 THINK WAVES

What is the EIN of THINK WAVES?
The employer identification number (EIN) of THINK WAVES is 61-1961189.
Is THINK WAVES tax-exempt?
Yes. The IRS revoked its exemption on February 15, 2023 and reinstated it effective February 15, 2023.
Are donations to THINK WAVES tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does THINK WAVES file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of THINK WAVES due?
The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did THINK WAVES last file with the IRS?
The latest return in the IRS public files is the 990-N for 2025 for the year ended December 31, 2025.
Who is the principal officer of THINK WAVES?
The 990-N for 2025 names Milton Bradley Willis.

Other nonprofits in CARDIFF

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