The workers' comp renewal clock: what has to happen at 180, 120, 90 and 60 days

Most workers' comp renewals are lost on a specific day, and nobody in the room notices, because the day arrives about six months before the expiration date. It's the day the experience data locks — after which the mod that will price the renewal can no longer be influenced, only predicted.

This is the clock we run every staffing and PEO renewal against. The phases matter more than the exact day counts; what makes the timeline unforgiving is that each window closes behind you.

T-180 — the mod window closes

The unit statistical data that drives next year's mod is reported to the bureau roughly six months after each policy year ends. Around six months before expiration, the third and newest year of that data is essentially set.

This is the deadline that decides renewals, and it is the one almost everyone misses — because at T-180, nobody is thinking about renewal. What has to be done before this point: open claims closed or re-reserved, coding errors corrected, subrogation credits applied. Every one of those fixes changes the mod if it lands before the valuation; after, it's commentary. (The checklist is our loss run forensics post.)

T-150 — loss-run pull and forensics

Pull a current-valued loss run from every carrier in the rating window and read it like an auditor: reserve outliers, stale open claims, misclassified injuries, the frequency clusters that need a narrative. Anything you'll want to challenge needs time for the adjuster to actually act — reserve reviews don't happen in a week.

This is also when to run the mod projection. The formula is public, the data is in your hands, and projecting the mod now — with a sensitivity range for the open claims — tells you whether you're walking into renewal with a 0.97 story or a 1.20 problem. Either way, you want to know it four months before the incumbent's underwriter tells you.

T-120 — the submission

Assemble the full packet: loss runs, payroll by state and class, the mod analysis with trend commentary, safety program documentation, return-to-work protocols, and — for staffing — the client-site register and classification evidence. Completeness is not a formality: underwriters triage inbound submissions, and the complete, early packet gets worked first. In a market where capacity for tough classes is scarce, being quoted first is a real advantage, and being quoted last often means being declined by inbox.

T-90 — market strategy

With the submission out, decide the market map: the incumbent's posture (did they refile their LCM? re-tier the book?), which alternates actually have appetite for the class, and which program structures to model — guaranteed cost, large deductible, PEO master. Approach markets in a deliberate order; a submission shopped everywhere at once reads as distressed.

T-60 — the non-renewal risk zone

Carriers issue non-renewal notices on statutory clocks, commonly 60 to 90 days depending on the state. Past T-60, if the incumbent walks, your options are whatever markets you already warmed up — into a shrinking calendar. This is the deadline that punishes late starts hardest: the broker who first engages at T-60 (which is, in practice, when most accounts go to market) is starting the whole sequence inside the window where it can no longer be done well.

T-45 — quotes and negotiation

Quotes land. Now the early work pays or doesn't: schedule credits are argued from documented evidence (the safety program, the corrected experience, the frequency response), not from relationship warmth. If the mod projection was run at T-150, there are no surprises in the rating — and a quote priced on a wrong mod gets caught and contested.

T-15 — bind, collateral, deposit

For deductible programs, letters of credit take longer to post than anyone budgets. Deposits, payment plans, and binders need the final two weeks to be boring.

T+30 — reprice the bill rates

For staffing firms and PEOs, the renewal isn't over at binding: the new cost basis has to flow into client bill rates. A mod that moved 20 points changes per-hour workers' comp cost materially — leave bills unchanged and the margin absorbs it silently for a year.

The point

Nothing on this list is exotic. The entire edge is when it happens. The broker who engages at T-180 is doing cheap work with maximum leverage; the one who engages at T-60 is doing expensive work with none. HALO IQ's renewal board runs this clock across your whole book — every account's phase, every closing window, every mod projection — so T-180 stops being the day nobody noticed. See your book on the clock.