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Worked example
Real numbers from this tool, line by line.
A US safety manager with three warehouses can be carrying $49,650 of OSHA exposure inside a single calendar date. Three establishments, one missed March 2 upload, $16,550 per violation. That is the 2026 arithmetic, and the free OSHA 300A E-Filing Clock puts it on screen from six fields.
Here is the part that catches people. Under 29 CFR 1904.41 the injury-log submission is per establishment, not per company. One EHS manager signing the 300A for three plants means three uploads to OSHA's Injury Tracking Application and, if the cycle is missed, three separate other-than-serious citations. Type 3 establishments at the 2026 maximum of $16,550 and the exposure line reads $49,650.
The second trap is who has to upload, and what. The rule changed effective January 1, 2024, and a lot of advice still has not caught up. An establishment with 100 or more employees in an Appendix B NAICS - meat processing, nursing homes and the rest of that list - submits Forms 300 and 301 case detail as well as the 300A summary. One with 20 to 249 employees in an Appendix A NAICS submits the 300A, and one with 250 or more in any industry that is not partially exempt submits the 300A. Ask a chatbot and you often get the pre-2024 answer: only 250-plus sites file. Type 120 employees and an Appendix A NAICS into the clock and it answers "Form 300A only (Appendix A, 20-249 employees)". Change the industry to Appendix B and raise the headcount past 100 and the same tool answers "Forms 300, 301 and 300A".
The third trap is the penalty figure itself. Every January OSHA adjusts civil penalties for inflation, so the safe assumption is that 2026 is higher than 2025. It is not. The October 2025 CPI-U was never published, and the Federal Civil Penalties Inflation Adjustment Act allows no substitute index, so the January 2025 amounts carried into 2026 unchanged: $16,550 for a serious or other-than-serious violation, $165,514 for willful or repeated, per OSHA's adjustment memorandum of 2026-05-21. A model that reasons "it goes up every year" invents a number. The clock keeps the penalty as an editable input, so it stays honest the day the table does move.
Then there are the two dates people confuse. March 2 of the following year is the electronic submission deadline. February 1 to April 30 is the window for posting the paper 300A summary at the site, under 29 CFR 1904.32(b)(5) - a different obligation with its own citation. Type a posting date of May 10 and the tool says "OUTSIDE Feb 1 - Apr 30 - separate posting citation" and adds that exposure on top: a single plant filing on March 18 with a May 10 posting date shows LATE by 16 days and $33,100 of open exposure.
A worked run, using the defaults: upload planned 2027-02-16, peak headcount 120, Appendix A NAICS, 3 establishments, paper summary posted 2027-02-01, penalty 16550. The answers are Form 300A only, deadline 2027-03-02, 14 days of margin, posting inside the window, $0 open right now, $49,650 if the cycle is missed, and keep the records until 2031-12-31 - five years past the log year, per 29 CFR 1904.33.
Six inputs, eight answers, and nothing leaves the browser: the same compute() function runs in the popup and on the free web page, with no server call except licence validation. The whole calculation is free for as many establishments as you type - no watermark, no locked result, no trial count. The $60 licence sits on a different axis: taking the result with you as a .csv filing schedule, and browser reminders 30, 14 and one day before your upload date. One citation is $16,550. The key is $60, once.
15 seconds — what it actually does
Full walk-through
Questions people ask
What does this actually work out?
You type the date you plan to upload, the establishment's peak employee count, its industry list, how many sites share that profile and your posting date. It answers which OSHA forms that site owes the Injury Tracking Application, the March 2 deadline, your margin in days, whether the paper 300A posting date is legal, the retention date and the dollar exposure.
Who is it for?
US safety, EHS and HR managers who certify OSHA 300A summaries for more than one establishment - manufacturing plants, warehouses, grocery chains, nursing homes and staffing firms. If one person signs the 300A for several sites and has to remember which sites upload which forms, this is the check that takes a minute instead of an afternoon.
Why not just ask a chatbot or read the OSHA page?
Two things go wrong. Chatbots quote an inflation-adjusted 2026 OSHA penalty that was never published: the October 2025 CPI-U never appeared, so the January 2025 amounts carried into 2026 unchanged at $16,550. And they repeat the pre-2024 rule that only 250-plus-employee sites file, missing the Appendix B 100+ rule for Forms 300 and 301.
What is free and what costs money?
Every calculation is free, in the popup and on the web page, with no key and no limit: forms owed, deadline, margin, posting window, retention date and exposure. Nothing is computed on a server - the only outbound call is licence validation. The $60 licence adds a different axis: the .csv filing schedule and reminders 30, 14 and 1 day before your upload date.
What would this cost otherwise?
One other-than-serious recordkeeping citation is $16,550 per violation under OSHA's 2026 table, and ITA submissions are counted per establishment, so a three-site miss is $49,650. The licence is $60 once. The comparison this tool makes is not consultant hours; it is one avoided citation against a one-time key.
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