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

Nonprofit · EIN 05-0405879

INTERNATIONAL CONGRESS OF MATHEMATICIANS 1986

Tax-exempt · PROVIDENCE, RI 02904

Address and contacts

Address (IRS master file)
201 CHARLES ST, PROVIDENCE, RI 02904-2213
In care of
% JOSEPH H SILVERMAN PHD
Mailing address (990-N for 2025)
201 Charles St, Providence RI 02904
Principal officer (990-N for 2025)
John Meier PhD, 201 Charles St, Providence RI 02904

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

File the 2026 990-N for INTERNATIONAL CONGRESS OF MATHEMATICIANS 1986

Due May 17, 2027 · e-filed with the IRS by 990.tax, an IRS-authorized e-file provider

IRS record

EIN
05-0405879
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
1984
Accounting year ends
December
Files
Form 990-N (e-Postcard)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: John Meier PhD
December 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Joseph H Silverman PhD
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Joseph H Silverman PhD
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Joseph H Silverman PhD
December 31, 2022≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Joseph H Silverman
December 31, 2020≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: Joseph H Silverman
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 05-0405879).

Questions about INTERNATIONAL CONGRESS OF MATHEMATICIANS 1986

What is the EIN of INTERNATIONAL CONGRESS OF MATHEMATICIANS 1986?
The employer identification number (EIN) of INTERNATIONAL CONGRESS OF MATHEMATICIANS 1986 is 05-0405879.
Is INTERNATIONAL CONGRESS OF MATHEMATICIANS 1986 tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1984.
Are donations to INTERNATIONAL CONGRESS OF MATHEMATICIANS 1986 tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does INTERNATIONAL CONGRESS OF MATHEMATICIANS 1986 file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of INTERNATIONAL CONGRESS OF MATHEMATICIANS 1986 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 INTERNATIONAL CONGRESS OF MATHEMATICIANS 1986 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 INTERNATIONAL CONGRESS OF MATHEMATICIANS 1986?
The 990-N for 2025 names John Meier PhD.

Other nonprofits in PROVIDENCE

All nonprofits in PROVIDENCE · Rhode Island