Insurance appeal letter
By Justin Winter · Updated August 20, 2026
You can send an insurance appeal letter online in about two minutes: we typeset your letter and mail it USPS Certified with electronic Return Receipt for $14.99 all-in, so you have dated proof your appeal was filed within the deadline your policy sets.
Insurance appeals run on a clock — often 30 to 180 days from the denial, set by your policy or state law. Miss it and the appeal may not be considered at all, no matter how strong your case is.
What to attach
- The claim and policy numbers, and the exact reason given for denial.
- Why you believe the denial is wrong — cite the policy language if you can.
- Supporting documents: itemized bills, medical records, a doctor's letter of necessity.
How it works
- Open the template, fill in the claim details and your explanation.
- Pay $14.99 (Certified + Return Receipt) — mailed the next business day.
- Keep the delivery record; it is your proof the appeal was filed on time.
This template is a tool, not legal or medical advice. If this appeal is denied too, many states give you the right to an external review — check with your state's insurance department.
Common questions
Why does the delivery date matter for an appeal?
Insurance appeals almost always run on a strict clock — often 30 to 180 days from the denial, depending on the policy and state. A certified mail receipt is your proof of exactly when you filed, in case the insurer later claims it arrived late or not at all.
What should I include with the letter?
The claim and policy numbers, the stated denial reason, why you believe it is wrong, and copies of supporting documents — medical records, itemized bills, or a doctor's letter of medical necessity.
Is this legal advice?
No — it is a template, not legal or medical advice. If an appeal is denied again, you may have a right to an external review; check your policy or your state's insurance department.