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

Nonprofit · EIN 86-3184759

DOUGHERTY MATH CIRCLE INC

Tax-exempt · SAN RAMON, CA 94582

Address and contacts

Address (IRS master file)
3166 PADDINGTON WAY, SAN RAMON, CA 94582-5299
In care of
% RISHA CHAKRABORTY
Mailing address (990-N for 2024)
3166 PADDINGTON WAY, SAN RAMON CA 94582
Principal officer (990-N for 2024)
Risha Chakraborty, 3166 Paddington Way, San Ramon CA 94582

California records

California keeps its own records of charities and corporations. Search them by EIN 86-3184759 or by the name DOUGHERTY MATH CIRCLE INC.

Attorney General, Registry of Charities and Fundraisers
Registration status and filed reports (CT-TR-1, RRF-1)

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

Tax yearYear endedDueIRS public records
2025May 31, 2026October 15, 2026Not on file
2024May 31, 2025October 15, 2025990-N on file
2023May 31, 2024October 15, 2024990-N on file

File the 2025 990-N for DOUGHERTY MATH CIRCLE INC

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

IRS record

EIN
86-3184759
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
2021
Accounting year ends
May
Files
Form 990-N (e-Postcard)
Category (NTEE)
Education (B80)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2024
Officer: Risha Chakraborty
May 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Risha Chakraborty
May 31, 2024≤ $50,000 receipts––e-Postcard
990-EZMay 2023$357$123$1IRS
990-N for 2021
Officer: RISHA CHAKRABORTY
May 31, 2022≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: RISHA CHAKRABORTY
May 31, 2021≤ $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 86-3184759).

Questions about DOUGHERTY MATH CIRCLE INC

What is the EIN of DOUGHERTY MATH CIRCLE INC?
The employer identification number (EIN) of DOUGHERTY MATH CIRCLE INC is 86-3184759.
Is DOUGHERTY MATH CIRCLE INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2021.
Are donations to DOUGHERTY MATH CIRCLE INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does DOUGHERTY MATH CIRCLE INC file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of DOUGHERTY MATH CIRCLE INC due?
The return for tax year 2025 (the year ending May 31, 2026) is due October 15, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did DOUGHERTY MATH CIRCLE INC last file with the IRS?
The latest return in the IRS public files is the 990-N for 2024 for the year ended May 31, 2025.
Who is the principal officer of DOUGHERTY MATH CIRCLE INC?
The 990-N for 2024 names Risha Chakraborty.

Other nonprofits in SAN RAMON

All nonprofits in SAN RAMON · California · Education