OSHA 300A filing deadline 2026 — e-file check, penalties

Which injury forms your establishments must upload by March 2, and what one missed cycle is cited at under OSHA's 2026 penalty table.

Forms this establishment must upload—
ITA deadline (29 CFR 1904.41)—
Margin against the deadline—days
Filing status—
Paper 300A posting window (1904.32)—
Exposure if this cycle is missed—
Exposure open right now—
Keep the log until (1904.33)—
Who actually has to upload
Applies the 2024 rule as written in 29 CFR 1904.41: 100+ employees in an Appendix B NAICS send Forms 300, 301 and 300A; 20-249 in an Appendix A NAICS send the 300A; 250+ in any industry that keeps records send the 300A.
March 2 clock with margin
Turns the date you plan to file into days of margin - or days late - against March 2 of the year after the log year.
Feb 1 - Apr 30 posting check
Checks the date you post the paper 300A at the site against 29 CFR 1904.32(b)(5); posting late is a separate citation from filing late.
Exposure at 2026 penalty rates
Multiplies your establishment count by the 2026 maximum of $16,550 per other-than-serious violation, because ITA submissions and citations are counted per establishment.
Five-year retention date
Gives the calendar date you may stop keeping the 300, 300A and 301 for that log year under 29 CFR 1904.33.

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