Online Fax FAQ

Get fast answers to common online fax questions: pricing, delivery confirmations, legal and medical documents, DMV and court faxing, and troubleshooting.

Popular topics

One-Time Fax Service Fax Without Subscription Pricing How to Send a Fax

General FAQ

How much does it cost to send a fax online?
Onetime Fax charges $5 for up to 100 pages. Larger documents are billed at $0.05 per additional page. See the pricing page.
Can I send an international fax?
Yes, for destinations our providers can reach. Enter the full number with its country code (for example, +44 for the UK). The form checks number format, not provider coverage; email help@onetimefax.com with the country before paying if you need to check a destination. Supported destinations have the same price. See international faxing.
Is online faxing secure?
It can be. Use a reputable service with encryption in transit, verify the recipient number carefully, and avoid public Wi‑Fi for sensitive documents. For deeper guidance, see fax security.
Do I need my own fax number to send a fax?
No. To send a fax you only need the recipient’s fax number. To receive faxes, you can get a virtual fax number for $10 one-time (30 days) or $10/month with auto-renew.
Does Onetime Fax store my documents?
Uploaded sending documents are scheduled for deletion 24 hours after delivery. Received faxes can be viewed and individually deleted from the number dashboard. See our privacy policy.
What file formats are supported?
You can upload PDF, JPG, JPEG, PNG, TIF, TIFF, HEIC, HEIF, and WEBP files. PDF is usually best for multi-page documents.
Do I get delivery confirmation?
Yes, you’ll receive an email confirmation when your fax is delivered (or an error if it fails).
How long does it take to deliver a fax?
There is no guaranteed delivery time. Transmission depends on the page count, document, recipient line, and route. Follow the status page for the final result.
Can I create a cover page?
Yes—Onetime Fax includes a built-in cover page generator. For regulated documents, keep the cover page minimal and avoid unnecessary sensitive data.
How do I contact support?
Email help@onetimefax.com with your status link or fax ID so we can find your fax.

Specialized Fax Guides

Medical Records

Guidance on faxing medical documents, safeguards, and HIPAA considerations.

Tax Documents

Send tax forms to IRS, accountants, and tax preparers without visiting FedEx.

Legal Documents

Fax legal documents to lawyers, courts, and law firms without a fax machine.

Phone Faxing

Send faxes from your phone without downloading apps or installing software.

USCIS Faxing

When USCIS accepts fax, formatting, and tips.

SSA Faxing

How to fax Social Security documents securely.

International Faxing

Number formatting, country codes, timing, and common destinations.

Legal Faxing

California Courts

Fax filing policies, formatting, and timing.

Texas Courts

Fax filing policies, formatting, and timing.

New York Courts

Fax filing policies, formatting, and timing.

Florida Courts

Fax filing policies, formatting, and timing.

DMV Faxing

California DMV

When fax is accepted, formatting, best practices.

Texas DMV

When fax is accepted, formatting, best practices.

New York DMV

When fax is accepted, formatting, best practices.

Florida DMV

When fax is accepted, formatting, best practices.

Illinois DMV

When fax is accepted, formatting, best practices.