RonFax
Blog· Page 5
Practical guides aligned with what people actually search for—online fax, store alternatives, and pay-as-you-go sending from home. Written by RonFax Editorial.
UnitedHealthcare Prior Auth Fax (888) 950-1059 — Verify First
UHC prior authorization fax is often (888) 950-1059—confirm on your form or plan materials, then fax the clinical packet online. What to include + send steps.
Read guide →How to Send a Fax from Printer (and What to Do if You Don't Have One)
Learn how multifunction printers send faxes—and how to skip the printer entirely with phone-to-PDF uploads and RonFax for instant online transmission.
Read guide →
Agency & institution fax guides
Crawlable directory of step-by-step fax guides — each page includes the destination number, what to include, and a send form.
Credit bureaus
Finance & business
Financial services
Government
Government & tax
- Fax to California FTB Filing Enforcement
- Fax to IRS Form 2553 (S Corp Election)
- Fax to IRS Form SS 4 (Apply for EIN)
- Fax to IRS Kansas City MeF / SP Rejects
- Fax to Massachusetts DOR Court Order / Child Support
- Fax to NYS Department of Labor UI Claimant Fax
- Fax to NYS Department of Labor UI Collections
- Fax to Social Security Administration