The published timeline assumes the eligibility stage moves. For most of the process's history it has not: dispute volume ran far past projections — more than 5.1 million submissions through January 2026 — and eligibility review became the bottleneck. Disputes sitting months past their nominal review window were routine. The 5-business-day deadline imposed by the 2026 rule and the phased IDR Gateway are the response to that backlog; whether they clear it is still being measured.
Two of these deadlines are yours and both are short. The 30-business-day window to open negotiation runs from the remit, not from when someone notices the underpayment — which means claims can expire inside a billing queue before anyone looks at them. And the 4-business-day window to initiate after negotiation closes is the most commonly missed deadline in the entire process.
Everything else is the plan's clock or the entity's clock. Your leverage is entirely in the first 35 business days.
Treat IDR as a receivable with a 4-to-6-month tail, not a collections activity. Groups that build it into cash-flow expectations rather than treating each recovery as a windfall tend to file consistently, and consistent filing is what changes payer behavior at contract renewal.
Deadlines reflect current federal regulation including the May 28, 2026 final rule. Use our calculator for date-specific windows.
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