Online Fax FAQ

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

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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?
No. To send a fax you only need the recipient’s fax number. If you need to receive faxes, Onetime Fax offers a virtual fax number for $10/month.
Does Onetime Fax store my documents?
Customer files are automatically deleted 1 day after the fax is delivered. For sensitive documents, review our privacy policy and delete local copies after sending.
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).
How long does it take to deliver a fax?
Most faxes are delivered in about 1 minute per page. It can take longer for image-heavy documents.
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.

Specialized Fax Guides

Legal Faxing

DMV Faxing