FAQ

Quick answers about sending a fax online.

Specialized Fax Guides

Medical Records

HIPAA-compliant faxing for medical documents, insurance forms, and healthcare records.

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.

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. Enter the full international number with a country code (for example: +44 for the UK). Pricing is the same as domestic. See international faxing and the country codes list.
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?
Usually no. To send a fax you typically only need the recipient’s fax number. Receiving faxes is a separate feature some providers offer.
Does Onetime Fax store my documents?
Files are handled for transmission and delivery confirmation. For privacy-sensitive use cases, always review the service’s data-handling and retention policy and delete local copies after you send.
What file formats are supported?
PDF is the most reliable format for faxing. If you’re starting from photos or Word docs, convert them to a single PDF so pages stay in order.
Do I get delivery confirmation?
Yes, you’ll receive an email confirmation when your fax is delivered (or an error if it fails).
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. Typical response time is within 1 business day.