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

Nonprofit · EIN 13-3531965

WILLIAM R GRUVER FOUNDATION

Tax-exempt · SANIBEL, FL 33957

What it must file and when

IRS records say it files Form 990-PF. Private foundations file every year. Its accounting year ends in February, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025February 28, 2026July 15, 2026Not on file
2024February 28, 2025July 15, 2025990-PF on file
2023February 29, 2024July 15, 2024990-PF on file

IRS record

EIN
13-3531965
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Private non-operating foundation
Donations deductible (Pub 78)
Private foundation, 30% limit
Exempt since
1990
Accounting year ends
February
Files
Form 990-PF

Filing history

FormYear endedRevenueExpensesAssets
990-PFFebruary 2025–––
990-PFFebruary 2024$756,405$283,867$4,578,557
990-PFFebruary 2023–––
990-PFFebruary 2022–––
990TFebruary 2022–––
990-PFFebruary 2021–––
990TFebruary 2021–––
990-PFFebruary 2019–––

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 SANIBEL