We compared the top online fax services head-to-head. Honest reviews of pricing, features, and HIPAA compliance across 6 leading providers.
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We looked at the six most popular online fax services used by US businesses in 2026. For each service, we evaluated pricing, ease of use, HIPAA compliance, customer support, and features that matter for real business use.
Full disclosure: we built usfax.com, so we are obviously biased. To keep this honest, we have highlighted genuine strengths of each competitor and noted where they genuinely outperform us. We believe the best way to earn your business is to give you accurate information and let you decide.
Honest pros and cons for each service.
Best for: US businesses that want flexibility and modern UX
Pros
Cons
Best for: Businesses that prioritize brand recognition
Pros
Cons
Best for: International businesses or light personal use
Pros
Cons
Best for: Dropbox users who need occasional faxing
Pros
Cons
Best for: Enterprises already using or needing a full phone system
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Cons
Best for: Users who need US + international fax numbers
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Cons
| Feature | usfax.com | eFax | Fax.Plus | HelloFax | RingCentral | MyFax |
|---|---|---|---|---|---|---|
| Starting price | $2.99/fax | $18.99/mo | $9.99/mo | $9.99/mo | ~$30/mo | $12/mo |
| Pay-per-fax | ||||||
| HIPAA / BAA | ||||||
| US-based support | ||||||
| Mobile app | Web app | |||||
| Number porting | ||||||
| Email-to-fax | ||||||
| Free trial | 10 pages | 5 pages | ||||
| No contract | ||||||
| US data centers |
There is no single "best" online fax service for everyone. The right choice depends on your specific needs:
Choose usfax.com if you want the most flexible pricing (pay-per-fax or monthly), a modern interface, HIPAA compliance, and US-based support. We built it specifically for US businesses and priced it so small offices do not overpay.
Choose eFax if brand recognition matters to your organization and you are willing to pay a premium for it. eFax has been around for 20+ years and has strong native mobile apps.
Choose Fax.Plus if you need international faxing to 40+ countries or want a free tier to test with. Just note that your data is stored in Switzerland, not the US.
Choose HelloFax if you are already deep in the Dropbox ecosystem and do not need HIPAA compliance. The Google Drive and Dropbox integrations are genuinely excellent.
Choose RingCentral if you need a full unified communications platform (phone, video, messaging, and fax) and are willing to pay enterprise pricing. Do not choose it just for fax — it is overkill.
Choose MyFax if you need fax numbers in multiple countries (US, Canada, UK) and want simple, straightforward pricing without complexity.
Read our detailed head-to-head comparisons: vs eFax · vs Fax.Plus · vs HelloFax · vs RingCentral · vs MyFax
See all usfax.com features or learn about our security infrastructure.
For occasional use, usfax.com offers pay-per-fax pricing starting at $2.99 per fax with no monthly subscription. For regular monthly use, usfax.com's Individual plan at $12/month and Fax.Plus's Basic plan at $9.99/month are among the most affordable options. eFax is the most expensive mainstream option at $18.99/month for its Plus plan.
usfax.com, eFax, and RingCentral Fax offer HIPAA compliant plans with Business Associate Agreements (BAA). Fax.Plus also offers HIPAA compliance on their business plans. HelloFax (Dropbox Fax) does not currently offer a BAA or HIPAA compliant plan. If you need HIPAA compliance, make sure to verify BAA availability before signing up.
Yes. Most online fax services support number porting, which lets you transfer your existing fax number to the online service. The process typically takes 1-2 weeks. usfax.com, eFax, and RingCentral all support number porting. You can use your new account with a temporary number while the port processes.
Yes — and often more reliable. Online fax services run on enterprise-grade cloud infrastructure with 99.9% or higher uptime. Unlike traditional machines, they do not experience paper jams, busy signals, or run out of toner. Failed faxes are automatically retried. The main requirement is a stable internet connection.
No. Most online fax services, including usfax.com, work through a web browser and email. You upload a document (PDF, Word, image) to the web app or send it as an email attachment, enter the fax number, and hit send. No software installation needed. Some services also offer mobile apps for iOS and Android.
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