Auto Insurance Claim Fax Service — Send Claims, Proof of Loss & PIP Forms Online
Fax collision claims, proof of loss statements, CMS-1500 medical bills, GAP insurance documents, and declaration pages to your auto insurance carrier — no fax machine, no account, no subscription. Pay only if delivery succeeds.
When You Need to Fax Auto Insurance Documents
Auto insurance carriers still rely heavily on fax for claims processing, document verification, and dispute resolution. Here are the most common situations:
- Filing a first-party collision or comprehensive claim with your own insurer
- Submitting a Sworn Statement in Proof of Loss (typically due within 60 days)
- Faxing CMS-1500 / HCFA 1500 medical bills for PIP/no-fault claims
- Filing a GAP insurance claim after a total loss (within 90 days of settlement)
- Sending repair estimates, photos of damage, or police reports to a claims adjuster
- Faxing your declaration page or proof of insurance to a lender, DMV, or court
- Filing a third-party liability claim against the at-fault driver’s insurer
- Submitting a diminished value demand letter with supporting appraisal
Always confirm your carrier's claims fax number on their website or your policy documents before sending. Many insurers maintain separate fax lines for underwriting, claims, and general service.
Auto Insurance Documents You Can Fax
Collision & Comprehensive Claim Forms
First-party claim forms for vehicle damage from accidents, theft, weather, or vandalism. Upload the signed form, police report, and repair estimates.
Sworn Statement in Proof of Loss
A notarized one-page document detailing your policy info, the loss, and the compensation owed. Most policies require submission within 60 days of the insurer’s request — missing the deadline can result in claim denial.
CMS-1500 / HCFA 1500 Medical Claims
The standard medical billing form for PIP/no-fault auto insurance claims. Medical providers fax this to the auto carrier for reimbursement of treatment after a car accident. Required in 12+ no-fault states.
PIP Application for Benefits
Personal Injury Protection application required in no-fault states (FL, NJ, NY, MI, and others). Includes wage verification and treatment plan forms.
GAP Insurance Claim Package
After a total loss, you must submit the primary insurance settlement statement, loan/lease contract, and current payoff balance — all within 90 days of settlement.
Declaration Page / Proof of Insurance
Summary of your coverage limits, deductibles, and policy details. Often requested by lenders, the DMV, courts, or other parties to verify your coverage.
Diminished Value Demand Letter
Letter claiming loss of vehicle value after accident repair, filed against the at-fault party’s insurer with a supporting independent appraisal.
Subrogation Documents
Documents your insurer exchanges with the at-fault party’s carrier to recover claim payments. Includes settlement statements, repair invoices, and correspondence.
Major Auto Insurance Carrier Fax Numbers
Below are claims fax numbers for major U.S. auto insurance carriers. These numbers are for reference — always verify with your carrier before sending, as fax numbers can change.
| Carrier | Claims Fax | Notes |
|---|---|---|
| Progressive | 1-800-229-1590 | Auto claims |
| GEICO | Varies by state | CA: 866-355-4593, FL: 877-294-8178, TX: 855-814-4058 |
| Allstate | 847-402-9116 | TX: 847-326-7524 |
| Liberty Mutual | 877-600-5740 | Toll-free claims line |
| Chubb | 1-312-351-7120 | Personal lines claims |
| NJM Insurance | 609-493-1277 | PIP Dept (West Trenton) |
| Nationwide | 614-221-6317 | Alt: 866-902-0407 |
| Travelers | 713-268-7995 | Regional line |
Fax numbers change. Always verify the current claims fax number on your insurer's website, your policy documents, or by calling their claims department before sending.
No-Fault / PIP States — Why Fax Matters
In the 12 states with mandatory Personal Injury Protection (PIP) coverage, medical providers must submit CMS-1500 claim forms to the auto carrier for reimbursement. Many providers and patients still use fax for these time-sensitive submissions.
Mandatory PIP States
Choice No-Fault States
In New Jersey alone, NJM Insurance maintains three separate PIP department fax numbers (West Trenton, Parsippany, Hammonton) plus a dedicated post-service appeals fax line.
CMS-1500 forms contain diagnosis codes and treatment information that qualifies as PHI. Use HIPAA mode ($6.50 for 1-10 pages) when faxing medical billing forms for auto accident claims.
How to Fax Auto Insurance Documents with OneFaxNow
Gather your documents
- • Collect your signed claim form, proof of loss, repair estimates, or CMS-1500
- • Save or scan to PDF, or upload as DOCX, JPG, PNG, or TIFF
- • Include all supporting documents (police report, photos, invoices)
Upload to OneFaxNow
- • Go to Pay-Per-Fax and upload your document(s)
- • Multiple files merge into a single fax in your order
- • Limits: up to 20 MB per file and 50 pages total
Add a cover page (recommended)
- • Include your name, policy number, claim number, and contact info
- • Note the document type (e.g., “Proof of Loss” or “CMS-1500 PIP Claim”)
- • OneFaxNow can generate one for you, or upload your own
Enter your carrier’s claims fax number
- • Use the fax number from your policy documents or the carrier’s website
- • Double-check you’re using the claims fax, not general service
Choose Standard or HIPAA mode
- • Standard ($3.50 / $5.00): For non-medical documents — claim forms, proof of loss, repair estimates, declaration pages
- • HIPAA ($6.50 / $10.00): For medical billing forms (CMS-1500), treatment plans, and any documents containing diagnoses or PHI
Pay only if delivery succeeds
- • Your card is authorized at checkout
- • We retry up to 3 times if the line is busy
- • If all attempts fail, you pay $0

Cost Comparison: Fax Shops vs. OneFaxNow
A 10-page auto insurance claim at a retail fax location costs significantly more than OneFaxNow:
| Provider | Per Page | 10 Pages | Notes |
|---|---|---|---|
| FedEx Office | $1.59-$2.29 | $15.90-$22.90 | Plus drive time |
| UPS Store | $2.00 | $20.00 | Plus drive time |
| Staples | $1.50-$2.00 | $15.00-$20.00 | Plus drive time |
| OneFaxNow | Flat rate | $3.50 | From your phone |
Why Use OneFaxNow for Auto Insurance Faxing?
No account or subscription
Fax your auto insurance claim without creating an account. No monthly plans, no recurring charges.
Pay only on successful delivery
Your card is authorized at checkout. If delivery fails after retries, you are never charged.
Real-time tracking + email confirmation
Watch each step of the transmission in real time. Receive an email confirmation when your claim is delivered — proof of timely submission.
Automatic retries for busy lines
Insurance carrier fax lines are often busy. OneFaxNow retries up to 3 times automatically. Follow each attempt on your status page.
HIPAA mode for medical documents
Faxing CMS-1500 forms or medical records for your PIP claim? Enable HIPAA mode for instant BAA, encryption, audit logs, and secure file deletion.
Delivery confirmation meets claim deadlines
Proof of loss due in 60 days? GAP claim due in 90? OneFaxNow provides timestamped delivery confirmation as evidence of timely submission.
Simple Pay-Per-Fax Pricing for Auto Insurance Claims
Most auto insurance claim submissions fit into our standard pricing tiers.
Standard Auto Claim
1-10 pages
For claim forms, proof of loss, repair estimates, and declaration pages
Standard (11+ pages)
11-50 pages
For larger claim packages with multiple supporting documents
Faxing CMS-1500 forms, treatment plans, or medical records related to your auto accident? Use HIPAA mode: $6.50 (1-10 pages) or $10.00 (11-50 pages) with instant BAA, audit logs, and secure deletion.
- U.S. & Canada fax numbers only
- Cover page counts toward total page count
- Pay only on successful delivery
Auto Insurance Fax Questions
Can I fax an auto insurance claim online?
Yes. Upload your claim form, proof of loss, or supporting documents to OneFaxNow, enter your carrier’s claims fax number, and send. No account or fax machine needed. Pay only if delivery succeeds.
What documents do I need to fax for an auto insurance claim?
Common documents include the signed claim form, police report, repair estimates, photos of damage, proof of loss statement, medical bills (CMS-1500 for PIP claims), and any correspondence from your insurer.
Do I need HIPAA mode to fax auto insurance documents?
For most auto insurance documents (claim forms, repair estimates, proof of loss), standard mode at $3.50 is sufficient. Use HIPAA mode ($6.50) only if you are faxing medical records, CMS-1500 forms with diagnoses, or treatment plans related to your auto accident.
What is a CMS-1500 form and why do I need to fax it?
The CMS-1500 (also called HCFA 1500) is the standard medical billing form used to bill auto insurance carriers for PIP/no-fault medical treatment. Medical providers can print and fax this form to the auto carrier for reimbursement of accident-related treatment.
How long do I have to submit a proof of loss to my auto insurer?
Most policies require a Sworn Statement in Proof of Loss within 60 days of the insurer’s request. Some states count from the date of loss. Missing this deadline can result in claim denial, so faxing with delivery confirmation provides proof of timely submission.
Can I fax GAP insurance claim documents?
Yes. GAP claims require your primary insurance settlement statement, loan/lease contract, and current payoff balance. These must typically be submitted within 90 days of the primary insurance settlement. Fax provides a delivery-confirmed paper trail.
How much does it cost to fax auto insurance documents?
OneFaxNow charges $3.50 for 1-10 pages or $5.00 for 11-50 pages. Compare that to FedEx ($1.59-$2.29/page) or UPS ($2/page) where a 10-page claim package costs $16-$23.
Ready to Fax Your Auto Insurance Claim?
Upload your claim form, proof of loss, or supporting documents, enter your carrier's fax number, and send — no fax machine, no subscription, and no account required.