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Insurance companies still fax because claims departments were built around fax intake, and faxed documents fit their verification routines better than email attachments do. A fax arrives with a sender number and a timestamp, lands in a document queue tied to a claim, and gives both sides a confirmation page to point to later.
A claim file is a pile of documents from different people: the policyholder, a repair shop, a clinic, a contractor, an employer. Fax intake gives the insurer one pipe for all of them. Each incoming fax is matched to a claim number, scanned into the file, and routed to the adjuster handling that claim. Email could do the same job in theory, but email brings spam, spoofed senders, and oversized attachments, and insurers would rather run one well-tested intake pipe than police an inbox.
Verification is the other half. When an adjuster questions a document, the fax header shows where it came from and when it arrived. That matters in disputes about whether a form was sent before a deadline, or whether a medical release actually came from the clinic. A forwarded email chain is easy to alter and hard to authenticate; a fax record, kept by both sides, is harder to argue with.
Health and auto claims often carry medical details, and insurers handle those under strict privacy rules in both countries. In the United States, fax has long been treated as an acceptable way to transmit health information when reasonable safeguards are used, such as a cover sheet and a verified number. In Canada, provincial privacy laws set similar expectations for handling personal health information. Fax fits because it is point-to-point: the document goes to one number, not to a shared inbox or a cloud folder that several people can open.
That said, fax is not private by default. A fax left on a shared machine in a clinic or an office can be read by anyone passing by, and a mistyped number sends the document to a stranger. Insurers that still fax usually pair it with cover sheets, confirmed numbers, and restricted fax rooms. The habit survives because the safeguards are familiar, not because the technology is flawless.
| Department | Why fax still shows up |
|---|---|
| Claims intake | One queue for documents from policyholders, clinics, shops, and contractors. |
| Underwriting | Signed applications and supporting documents arrive with a dated sender record. |
| Provider relations | Clinics and small practices already fax, so insurers keep a number they can reach. |
| Fraud review | Fax headers and confirmation pages help settle when a document was sent. |
| Legal and subrogation | Demand letters and settlement documents get a paper trail both sides can file. |
Slowly, and unevenly. Large insurers already push most policyholders toward portals and apps, and routine claims often never touch a fax machine. But the long tail stays: small clinics, independent repair shops, and older policyholders still fax, and insurers keep the numbers open rather than turn those senders away. Newer channels get added on top of fax instead of replacing it outright, which is why a company can advertise a slick app and still print a fax number on its claim forms.
If you are sending documents to an insurer, use the number printed on your claim paperwork or the insurer site, not a number from an old letter. Include the claim number on every page and on the cover sheet, and keep the confirmation page with your claim file. If the insurer says it never received a fax, that page plus the claim number is what gets the document found.
Yes, for US and Canadian insurer fax numbers. You ask your AI assistant, get a per-fax quote with the page count verified, approve the exact total, and pay once through Stripe. Fax is currently in testing, so it is described as available in testing and a fax is never promised to send on a particular day. Double-check the number before approving, since a fax sent to the wrong number cannot be pulled back.
Ready to fax it? Fax with LetterAgent: describe it to your AI assistant, approve the exact quoted price, and it is sent.
LetterAgent is a working name. Prices include print, postage, and our service fee. US prices in USD, Canadian prices in CAD (Canadian prices exclude applicable sales tax, added at checkout). Currently in private testing.
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