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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 59-1860916

INSTITUTE FOR INTERGOVERNMENTAL RESEARCH INC

Tax-exempt · TALLAHASSEE, FL 32317

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

Tax yearYear endedDueIRS public records
2025September 30, 2026February 15, 2027Not due yet
2024September 30, 2025February 16, 2026990 on file
2023September 30, 2024February 17, 2025990 on file

File the 2025 990-EZ for INSTITUTE FOR INTERGOVERNMENTAL RESEARCH INC

Due February 15, 2027 · e-filed with the IRS by 990.tax, an IRS-authorized e-file provider

IRS record

EIN
59-1860916
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
1996
Accounting year ends
September
Files
Form 990 or 990-EZ

Filing history

FormYear endedRevenueExpensesAssets
990September 2025–––
990September 2024–––
990September 2023$43,753,714$43,854,675$7,922,943
990September 2022$41,391,878$41,221,979$5,722,214
990September 2021–––
990September 2020–––
990September 2019–––
990September 2018–––

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 TALLAHASSEE