Fax guides
Faxing is usually something you have to do once, under a deadline, for an organisation that will not accept email. These guides cover the specific cases — which number, which form, what gets rejected, and what it should cost.
Best Fax Apps Compared
An honest roundup of the main online fax services, their pricing models, and who each one suits.
Fax Not Going Through? Causes and Fixes (2026)
Busy signals, no answer, communication errors and VoIP failures explained — what each fax error actually means and the fix that works for it.
Fax Prior Authorization: Complete 2026 Guide
What to include, the 7-day and 72-hour decision deadlines, denial rates by plan type, and why appealing a denial usually works. Updated for 2026.
Fax Without Subscription: 5 Services Compared (2026)
Compared: FaxZero, PayPerFax, FaxItOnce, OneTimeFax and Faxio on real price, page limits, and what happens when a fax fails. No monthly fees.
Faxio vs eFax
Pay-per-fax against a monthly subscription, with the cost maths for occasional and heavy senders.
How to Fax Documents to Social Security (SSA)
There is no national SSA fax number — each office runs its own line. How to find the right one, what belongs on your cover sheet, and why the timestamp matters.
How to Fax Documents to the IRS (2026 Numbers & Guide)
Verified IRS fax numbers by form and state, which forms the IRS accepts by fax, and the signature mistakes that get faxed forms rejected. Updated August 2026.
How to Fax Documents to the VA (2026 Numbers)
The VA Claims Intake Center fax numbers, the cover sheet requirement, and when uploading to VA.gov beats faxing. Verified against VA.gov, August 2026.
How to Fax Documents to USCIS (And When Not To)
USCIS publishes no general fax number and asks you not to fax unless an officer requests it. The three cases where faxing is correct, and what to do otherwise.
How to Fax From Android Without an App (2026)
Scan with Google Drive, send from your browser — fax from any Android phone with no app install and no subscription. Plus when the Faxio app is worth it.
How to Fax From Windows 11 Without a Modem (2026)
Windows Fax and Scan needs a USB modem and a landline you probably don't have. The browser method takes two minutes and no hardware.
How to Fax Medical Records (2026 Patient Guide)
What the release form must contain, your HIPAA 30-day right of access, what providers may charge, and how to confirm the request actually arrived.
How to Send a Fax From Gmail (2026)
Email-to-fax explained honestly: how it works, what setting it up costs you, and why downloading the attachment and using a browser is faster for a one-off fax.
How to Send a Fax From iPhone Without an App (2026)
Fax from your iPhone using the built-in Notes scanner and Safari — no app download, no subscription. Plus when the free options are enough and when they aren't.
How to Send a Fax Online
The complete guide: file formats, page limits, international numbers, and what delivery statuses mean.
How to Send a One-Time Fax
Send a single fax without signing up for anything — and how to spot the trial-to-subscription pricing trap.
Need to send one right now? Send a fax for $2.99 — no subscription, no account.