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Appeal Deadline Calculator

Last reviewed October 17, 2026

Written by Aptiva Health Editorial TeamReviewed by Taylor Sorrels, Esq. and Crystal Brake, RCM DirectorEditorial & review standardsHow we research

In short

The Appeal Deadline Calculator turns the date on your denial letter into calendar dates. It shows when to file an internal appeal and an external review, and how long the plan or reviewer has to decide. It counts days the way the official rules do. Always check the deadline on your denial letter.

Appeal Deadline Calculator

Enter the date on your denial letter, your state and your plan type. See the dates to file each step and how long the plan has to decide. Save the dates to your calendar.

Everything you type stays in your browser. Nothing is sent or saved.

Your denial

Some deadlines count from the day you got the letter. Using the letter’s date gives the earlier, safer date.

If your internal appeal was already decided, add that date to see your external review deadline.

A missed deadline can end an appeal before it starts. This calculator turns the date on your denial letter into calendar dates you can plan around.

How to use the Appeal Deadline Calculator

  1. Enter the letter date. Type the date printed on your denial letter.
  2. Pick your state. Choose Kentucky, Indiana or another state.
  3. Pick your plan type. Not sure? The Appeal Route Wizard explains how to find out.
  4. Add the final decision date, if you have it. This is optional. It is the date on your plan’s final internal appeal decision. External review clocks usually start from it.
  5. Read your dates. See your filing dates and how long the plan or reviewer has to decide.
  6. Save reminders. Download a calendar file (.ics) with reminders, if you like.

What your results mean

You will see two kinds of dates.

Filing dates. These are the last days to file an internal appeal and to ask for an external review. For example, federal rules give at least 180 days after you receive the denial to file an internal appeal (29 CFR 2560.503-1(h)(3)(i)). They give 4 months to ask for external review (45 CFR 147.136(d)). In Indiana, you can ask for external review within 120 days after you are told the result of your appeal of the grievance decision (IC 27-8-29-13). Indiana law does not set a deadline for the first grievance. The Indiana Department of Insurance says to follow the deadlines in your EOB or policy (IDOI: Grievance Procedures).

Decision times. These show how long the plan or reviewer has to decide, for standard and expedited (urgent) cases. Under federal rules, a plan decides an urgent appeal within 72 hours (29 CFR 2560.503-1(i)(2)). An external reviewer decides within 45 days, or 72 hours if expedited (45 CFR 147.136(d)).

Kentucky deadlines

Kentucky law prints 60-day windows, but the Kentucky Department of Insurance says federal ACA rules override them for most plans. The calculator uses the Department’s figures: at least 180 days to file an internal appeal, a decision within 72 hours if urgent, and 4 months to ask for external review (KY DOI UM Review Guide (2026)). Read more in the Kentucky guide.

How the calculator counts days

Business days skip weekends. Some rules count business days. The tool skips Saturdays and Sundays. It does not skip holidays, so the real date may be a little later.

Months are counted the federal way. A 4-month window ends on the same day number 4 months later. If that month has no matching day, the deadline is the first day of the next month (45 CFR 147.136(d)). For example, 4 months after October 31 has no matching day in February, so the deadline is March 1.

Some clocks start when you receive the letter. The federal 180-day rule counts from the day you *get* the letter. Others count from the printed date. Medicare Advantage gives 65 days from the date on the notice (Medicare.gov). Medicaid managed care gives 60 calendar days from that date (42 CFR 438.402). The tool doesn’t know when your letter arrived. So it always starts from the letter date. That is the earlier, safer date.

Where the deadlines and rules come from

Every date comes from an official source listed on this page: federal claims and external review rules, Medicare and Medicaid rules, Kentucky law and Department of Insurance guides, and the Indiana Code.

What this tool can’t do

  • It can’t see your plan’s own deadline, which may be longer.
  • It doesn’t count holidays or mail time.
  • It can’t tell you whether your case counts as urgent. Ask your clinician or call your plan.
  • A date is not a promise your appeal will be accepted.

Your privacy

The dates you enter stay in your browser. Nothing is sent to Aptiva or saved. The calendar file is made on your device. If you choose the optional “email me” feature, only your email address, state, plan type and the tool name are sent.

Frequently asked questions

Which date should I enter?

The date printed on your denial letter. For external review, also enter the date on the plan’s final internal decision, if you have it.

Why might my letter show a different deadline?

Your plan may give you more time than the minimum. Always check the deadline on your denial letter and use the earliest date that applies.

What does “Being reviewed” mean?

Aptiva’s reviewers have not yet confirmed that deadline.

What should I do after I have my dates?

The Appeal Letter Builder helps you draft a letter. The Denial Decoder explains your denial reason. See the Coverage & Appeals Center or the Indiana guide for the full process.

Sources