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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 46-2694752

CARBON CYCLE INSTITUTE

Tax-exempt · PETALUMA, CA 94952

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. 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, 2025Not on file
2023May 31, 2024October 15, 2024990 on file

File the 2025 990-EZ for CARBON CYCLE INSTITUTE

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

IRS record

EIN
46-2694752
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
2015
Accounting year ends
May
Files
Form 990 or 990-EZ

Filing history

FormYear endedRevenueExpensesAssets
990May 2024–––
990May 2023$1,036,547$992,829$724,496
990May 2022$877,629$705,010$680,778
990May 2021–––
990May 2020–––

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: e-filed returns processed since 2019; amounts from the IRS Statistics of Income extracts where available.

Other organizations in PETALUMA