Timely Filing Deadline Calculator
Enter the date of service and your payer's filing limit, and watch the countdown: the filing deadline, the days remaining, and an urgency ring that shifts as the window closes.
Read it off your contract or this plan’s provider manual. Filing limits vary by payer, plan and state and they change, so this tool will never guess one for you.
Enter a date of service, and either your own filing limit or the Medicare basis, to compute the deadline.
Everything is computed in this browser tab. Nothing you enter is sent, stored, or saved to this page’s address.
Where the limit comes from: your contract with that payer, or the provider manual for that specific plan. Filing limits are contractual, not statutory: they vary by payer, by plan, by product line and by state, and they change. This calculator asks you for the figure instead of offering one, because a limit it guessed wrong would cost a claim that can no longer be filed.
The exception is traditional Medicare, where the period is set by regulation rather than by contract: a claim must be filed no later than the close of the period ending one calendar year after the date of service (42 CFR 424.44(a)(1)), and if that last day falls on a Saturday, Sunday or federal holiday the time is extended to the next succeeding workday (424.44(c)). Select the Medicare basis above and the calculator applies both. Medicare Advantage plans are contracts, not this rule.
Missed the window? A timely-filing denial arrives as CO-29 — walk its decoder path. What such an appeal turns on is documentary proof that the original submission was timely, which is why preserving timely filing evidence explains how to capture that proof on the day you submit.
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