Appeal Deadline Calculator
Enter the denial date and your own contractual filing limit, and get the appeal deadline in calendar days and weekdays. The limit comes from your contract — this tool never asserts a payer's deadline.
The denial, and your own filing limit
Both figures come from your paperwork: the date on the denial, and the appeal window your contract with this payer gives you.
The denial or remittance date the payer put on the notice — not the day you opened it.
Read it off your contract or the payer’s provider manual for this plan. This tool has no list of payer deadlines and will never guess one.
We never tell you what your deadline is. Appeal windows vary by payer, plan, product line and state, and they change. You supply the limit; this tool only does the arithmetic on it. Confirm the window against the contract before you rely on the date below.
Everything is computed in this browser tab. Nothing you enter is sent, stored, or saved to this page’s address.
Enter the denial date and your filing limit to see the deadline.
Why you enter the limit and we do not
There is no single appeal deadline. The window depends on the payer, the plan, the product line, whether the claim is commercial or governmental, and in several cases on state law. It also changes. A tool that printed a number here would be right for some readers and wrong for others, and the ones it was wrong for would lose the appeal — so this one asks instead. The figure to enter is in your contract with the payer, or in their provider manual for that plan.
The deadline is counted with the denial date as day zero: deadline = denial date + your limit. That matches the usual contract phrasing, “within N days of the date of denial”, which excludes the day of the denial itself. If your contract counts the denial date as day one, enter one day fewer — the convention is stated here precisely so you can.
Calendar days and weekdays are different questions
The deadline itself is a calendar date, and calendar days are what the contract counts. Weekdays are what your team actually has to work with, which is the more useful number when you are deciding what to pick up today. Weekdays here means days that are not a Saturday or a Sunday — federal holidays are not applied, because which holidays close a given payer’s intake, clearinghouse or portal varies by payer, and asserting a holiday calendar would be the same mistake as asserting a deadline.
A deadline landing on a weekend is reported as landing on a weekend, and is not moved to the following Monday. Some forums roll a weekend deadline forward and some do not; unless your contract says otherwise, treat the working day before it as the real one.
Before the deadline matters, the appeal has to be worth filing
Knowing the date is the easy part. Appealing a denial covers what actually belongs in the appeal, and the denial code decoder takes the CARC off the remittance and tells you whether this denial is appealable at all or needs correcting and resubmitting instead.
For the separate question of how long you have to submit a claim in the first place, use the timely filing calculator. Filing limits and appeal limits are different clocks with different lengths, and mixing them up is a common and expensive error.
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