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Filing deadlines

The recurring financial filing deadlines that matter for the organizations OpenBooks serves. Federal returns anchor to your fiscal year; jurisdiction and election calendars shift the rest. Each regulation page carries the authoritative deadline and links to the regulator — always confirm before filing.

Browse regulations by type

Nonprofit 990 series

Due the 15th day of the 5th month after fiscal year-end. See the federal 990 reference.

Union LMRDA reports

LM-2/3/4 due within 90 days after fiscal year-end. See the federal union reference.

Campaign & HOA

Tied to election cycles and jurisdiction rules — confirm the current schedule with the regulator.

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