Cloud fax is a service that sends and receives faxes over the internet using cloud servers — no physical fax machine or phone line required. You upload a document through a web portal, email, or app, and the provider's servers handle the transmission. See our [complete guide to how faxing works](/blog/how-does-a-fax-work/) for the technical details.

Is cloud fax HIPAA compliant?

Yes — if the provider offers TLS encryption, a signed Business Associate Agreement (BAA), access controls, and audit logging. Not every cloud fax service qualifies. See our [HIPAA compliant fax guide](/blog/hipaa-compliant-fax/) for what to look for.

Can I keep my existing fax number with cloud fax?

Yes. Most cloud fax providers support number porting, which transfers your current fax number to the new service. The process takes 7–14 business days. See our [fax number porting guide](/blog/fax-number-porting/) for step-by-step instructions.

How much does cloud fax cost?

Plans typically range from $7–$50 per month depending on page volume and features. mFax Business starts at $20.99/mo with HIPAA compliance included. Pay-per-fax options also exist for occasional senders.

Do I still need a fax machine with cloud fax?

No. Cloud fax replaces the fax machine entirely. You send and receive faxes from your computer, phone, or email. The cloud provider's servers handle the analog-to-digital conversion.

Cloud Fax: What It Is, How It Works & Best Providers (2026)

Cloud fax lets you send and receive faxes over the internet — no fax machine, no phone line, no on-premise server. Learn how cloud faxing works, why businesses are switching, and which providers offer the best value in 2026.

Frequently Asked Questions

What is cloud fax?: Cloud fax is a service that sends and receives faxes over the internet using cloud servers — no physical fax machine or phone line required. You upload a document through a web portal, email, or app, and the provider's servers handle the transmission. See our [complete guide to how faxing works](/blog/how-does-a-fax-work/) for the technical details.
Is cloud fax HIPAA compliant?: Yes — if the provider offers TLS encryption, a signed Business Associate Agreement (BAA), access controls, and audit logging. Not every cloud fax service qualifies. See our [HIPAA compliant fax guide](/blog/hipaa-compliant-fax/) for what to look for.
Can I keep my existing fax number with cloud fax?: Yes. Most cloud fax providers support number porting, which transfers your current fax number to the new service. The process takes 7–14 business days. See our [fax number porting guide](/blog/fax-number-porting/) for step-by-step instructions.
How much does cloud fax cost?: Plans typically range from $7–$50 per month depending on page volume and features. mFax Business starts at $20.99/mo with HIPAA compliance included. Pay-per-fax options also exist for occasional senders.
Do I still need a fax machine with cloud fax?: No. Cloud fax replaces the fax machine entirely. You send and receive faxes from your computer, phone, or email. The cloud provider's servers handle the analog-to-digital conversion.