By Alexey Spasskiy · Published May 3, 2026 · Updated June 8, 2026 · 11 min read
The best internet fax service isn't the one with the most brand recognition — it's the one that matches your volume, compliance requirements, and budget without burying you in overage fees. With the cloud fax market projected to surpass $860 million by 2026, the choice has never been wider or more confusing.
This guide cuts through the noise. We compared eight leading internet fax services on real-world pricing, HIPAA compliance, page allowances, mobile usability, and hidden costs so you don't have to.
Quick Verdict
- Best for mobile faxing: mFax.to — fax from your phone in under 2 minutes
- Best for business teams: mFax Business — HIPAA on every plan, from about $9/mo (billed annually)
- Best price-to-pages ratio: MetroFax — 500 pages under $9/mo
- Best international coverage: Fax.Plus — 180+ countries supported
- Most established enterprise brand: eFax — HITRUST certified, 30-year track record
The 8 Best Internet Fax Services Compared
Here is how the top services stack up at a glance before we go into detail on each one.
| Service | Best For | Starting Price | Free Tier | HIPAA |
|---|---|---|---|---|
| mFax.to | Mobile / Personal | Pay-per-fax | No | Secure transmission |
| mFax Business | Teams & Healthcare | From $9/mo | No | Yes — all plans |
| Fax.Plus | SMBs & International | $6.99/mo | 10 pages/mo | Yes (paid plans) |
| eFax | Enterprise | $18.99/mo | No | Yes (Protect plan) |
| iFax | Healthcare Teams | $12.49/mo | No | Yes — all plans |
| HelloFax | Cloud Storage Users | $9.99/mo | 5 pages (one-time) | Yes (paid plans) |
| RingCentral Fax | High-Volume UCaaS | $9.99/mo | No | No (standalone) |
| MetroFax | Budget Volume | $8.30/mo | No | No |
In-Depth Reviews
1. mFax — Best for Personal & Mobile Faxing
mFax.to is built for one thing: sending a fax from your phone in under two minutes. Open the app, upload a PDF or snap a photo, enter the recipient's fax number, and send. No fax machine, no UPS trip, no setup fee.
mFax.to is the go-to internet fax service for individuals — contractors, realtors, freelancers, and anyone who occasionally needs to send a secure fax without maintaining a monthly subscription. The UX is noticeably cleaner than legacy apps like eFax, and delivery receipts arrive within seconds.
The app supports PDF uploads, photo scanning, and multi-page documents. At well under what most stores charge per page, it undercuts UPS ($2–5/page) by a significant margin.
Best for: One-off faxing, personal tax documents, medical records, real estate contracts.
Pros
- Fastest setup of any service tested — under 2 minutes
- Clean native iOS and Android apps
- Pay-per-fax model — no monthly commitment
- 98% delivery success rate with confirmation receipts
- 5M+ users, 4.8 App Store rating
Cons
- Not designed for high-volume team use (see mFax Business for that)
- No dedicated fax number on pay-per-fax tier
2. mFax Business — Best for Teams and Healthcare
mFax Business is the team-focused tier of mFax, built for organizations that send and receive faxes as part of daily workflows. Every paid plan includes HIPAA compliance — no BAA upsell, no compliance tier premium.
mFax Business uses usage-based pricing from about $9/month — you build your own plan, choosing the exact number of seats (1–35) and pages (200–5,000) you need with a live calculator and paying only for what you use, with no rigid fixed tiers to outgrow. Every plan includes the same features, scaling smoothly from a single user to large teams. Unlike eFax, which reserves HIPAA compliance for its most expensive tier, mFax Business makes compliance standard at every price point.
This makes it the top choice for small healthcare practices, legal offices, and insurance teams that can't afford the compliance uncertainty of cheaper options.
Best for: Healthcare providers, legal teams, small businesses needing a shared fax inbox.
Pros
- HIPAA compliance included on every paid plan
- Team accounts with shared inbox and user management
- Virtual fax numbers — no hardware required
- Web dashboard for sending, receiving, and managing faxes
- Delivery tracking and audit logs
Cons
- Less name recognition than eFax for enterprise procurement teams
- Solo plan limited to 1 user
mFax Business Pricing
| Model | Price |
|---|---|
| Usage-based | From $9/mo |
Pricing is usage-based — $3 per seat/month plus $4 per 100 pages/month, with 20% off annual billing (from about $9/mo, roughly 1 seat + 200 pages). There are no fixed tiers: you build your own plan with a live calculator and pay only for the seats and pages you actually use. Every plan includes a virtual fax number, web/mobile/desktop apps, API access, HIPAA compliance, and delivery audit trails. No long-term contracts.
3. Fax.Plus — Best Price-to-Feature Ratio
Fax.Plus has become the benchmark for modern SMB faxing. It offers TLS 1.2+ encryption, AES-256 storage encryption, and a free tier that actually works (10 pages per month) — making it the easiest way to evaluate an internet fax service without committing.
Paid plans start at $6.99/month (200 pages, billed annually) — the lowest entry point of any full-featured internet fax service. Swiss-based data infrastructure gives it a strong privacy posture for international customers.
For companies needing international fax coverage, Fax.Plus is the clear leader. Its 180+ country reach is nearly double what most competitors offer. See our Fax.Plus review for a full breakdown.
Best for: International businesses, budget-conscious SMBs, developers needing API access.
Pros
- Free tier with 10 pages/month — no credit card needed
- 180+ country coverage for international faxing
- ISO 27001, SOC 2, GDPR, and CCPA compliant
- Clean mobile apps for iOS and Android
- API access for developer integrations
Cons
- HIPAA BAA only available on higher-tier plans
- Overage fees add up quickly on the base paid plan
- Annual billing required for lowest advertised prices
4. eFax — Most Established Enterprise Service
eFax has been the dominant name in internet faxing for over 30 years. If your procurement team recognizes one fax vendor by name, it's probably eFax. That brand equity comes with HITRUST certification — the highest independent security validation in healthcare IT.
eFax pricing runs $18.99/month (Plus: 340 pages), $24.99/month (Pro: 550 pages), and $49.99/month (Protect: 1,000 pages). The big catch: HIPAA compliance is only included on the Protect plan. If you're in healthcare and eyeing the cheaper tiers, you won't get the BAA you need.
For a detailed cost breakdown, see our eFax pricing review or eFax vs. mFax comparison.
Best for: Large enterprises with existing eFax contracts, healthcare organizations requiring HITRUST certification.
Pros
- 30+ year track record — recognized by enterprise procurement
- HITRUST certified — the gold standard for healthcare security
- Global fax number inventory in 50+ countries
- Outlook and Gmail plugins for email-to-fax workflows
- 24/7 customer support
Cons
- Most expensive mainstream option ($18.99–$49.99/mo)
- $10 one-time setup fee on most plans
- $0.10/page overage can compound quickly
- HIPAA only on the Protect plan ($49.99/mo)
- Cancellation process is notoriously difficult
5. iFax — Best HIPAA Compliance Across All Tiers
iFax positions itself as the HIPAA-first internet fax service. Unlike eFax, which charges a premium for compliance, iFax includes a BAA and 256-bit encryption on every paid plan — making it the go-to for mid-size healthcare providers and legal teams.
Plans start at $12.49/month for 200 pages. The built-in e-signature feature is a genuine differentiator — most competitors require a separate DocuSign subscription for signed document workflows.
For organizations where compliance is non-negotiable but eFax's pricing is prohibitive, iFax is the most cost-effective HIPAA-compliant option. Our iFax app review covers the compliance workflow in detail.
Best for: Healthcare organizations, legal teams, any business where compliance is required on every plan tier.
Pros
- HIPAA BAA included on all paid tiers — no upsell required
- SOC 2 Type II certified
- Built-in e-signature (no DocuSign integration needed)
- Fax scheduling and automated sending
- Strong mobile apps — rated best-in-class by healthcare users
Cons
- Higher starting price than Fax.Plus ($12.49/mo vs $6.99/mo)
- Less name recognition than eFax for large enterprise deals
- No free tier
6. HelloFax — Best for Cloud Storage Integration
HelloFax (now part of the Dropbox / Hellosign ecosystem) is the best choice for teams already living in Google Drive, Dropbox, or OneDrive. Its native integrations let you send a fax directly from a file stored in the cloud — no downloading and re-uploading required.
Pricing: $9.99/month (300 pages, 1 user), $19.99/month (500 pages, 10 users), $39.99/month (1,000 pages, 20 users). The team plan pricing is genuinely competitive when shared across multiple users.
The Google Drive integration is seamless — you can authorize HelloFax to read your Drive, then select any file to fax directly from the picker within the app.
Best for: Teams already using Google Workspace or Dropbox, anyone needing fax + e-signature in one subscription.
Pros
- Best-in-class cloud storage integrations (Dropbox, Google Drive, OneDrive, Box)
- Dropbox Sign e-signature included in all plans
- Team accounts up to 20 users on a single plan
- HIPAA compliant on paid plans
Cons
- Web interface feels dated compared to iFax or Fax.Plus
- Mobile app less polished than top competitors
- Extra $4.99/user fee on team plans
- Free tier limited to 5 pages (one-time, not monthly)
7. RingCentral Fax — Best for High-Volume UCaaS Bundles
RingCentral Fax offers some of the best pages-per-dollar on the market, but it comes with a significant asterisk: standalone fax plans do not include HIPAA compliance or a BAA. If you need HIPAA, you must purchase the full RingCentral UCaaS suite.
Standalone fax plans: $9.99/month (500 pages), $17.99/month (1,500 pages), $27.99/month (3,000 pages). The value proposition is excellent for volume — but if you're in healthcare or any regulated industry, the missing BAA is a dealbreaker unless you're already paying for the full RingCentral platform.
See our RingCentral Fax review for a complete feature breakdown.
Best for: Businesses already using RingCentral for phone and video, high-volume faxers outside regulated industries.
Pros
- Strong page allowances — 500 pages from $9.99/mo
- Enterprise-grade infrastructure and reliability
- Integrates seamlessly with RingCentral phone and video
- API support for high-volume fax automation
Cons
- No HIPAA BAA on standalone fax plans
- Full UCaaS plan required for compliance — significantly higher cost
- Fax interface buried inside a large platform app
- Primarily US/Canada — limited international support on fax-only plans
8. MetroFax — Best Budget Option for High Volume
MetroFax offers the most pages per dollar of any mainstream internet fax service. It's no-frills by design — the interface is basic, there's no HIPAA compliance, and international support is limited. But if you're sending 500+ pages a month and don't need compliance features, MetroFax is hard to beat on pure cost.
Plans: Essentials ~$8.30/month (500 pages), Best Value ~$11.25/month (1,000 pages). MetroFax earns its place in this guide purely on value math — no other service gives you this many pages at this price point.
Best for: Non-regulated businesses with high fax volume and tight budgets.
Pros
- Best pages-per-dollar ratio: 500 pages for ~$8.30/mo
- Simple setup with iOS and Android apps
- No long-term contract required
Cons
- No HIPAA compliance — not suitable for healthcare or legal
- Dated web interface
- US and Canada only — no international fax support
- Limited customer support options
How to Choose the Right Internet Fax Service
Choosing between internet fax services comes down to four factors. Get these right and the rest is details.
Factor 1: Do You Need HIPAA Compliance?
If you're in healthcare, legal, insurance, or any industry handling sensitive client data, HIPAA compliance is non-negotiable. You need a provider that will sign a Business Associate Agreement (BAA) — not just one that claims to be "secure."
Services that include BAA on all paid plans: mFax Business, iFax Services that include BAA only on premium tiers: eFax (Protect plan only), Fax.Plus (Business tier) Services with no HIPAA compliance: MetroFax, RingCentral Fax (standalone), FaxBurner
See our guide to HIPAA compliant fax services for a deeper analysis.
Factor 2: How Many Pages Do You Send Per Month?
Most internet fax services advertise a monthly page allowance and charge overage fees of $0.10–$0.15 per page beyond that. A 100-page plan sounds cheap until you're sending 300 pages and paying $20 in overages on top of your subscription.
| Monthly Volume | Recommended Service |
|---|---|
| Under 50 pages | mFax.to (pay-per-fax) or Fax.Plus free tier |
| 50–300 pages | Fax.Plus paid, HelloFax, iFax |
| 300–600 pages | mFax Business, RingCentral Fax |
| 600–1,500 pages | MetroFax, RingCentral Fax 1500 |
| 1,500+ pages | mFax Business, eFax Pro |
Factor 3: Do You Need Team Access?
Single-user plans are fine for personal faxing, but businesses need shared inboxes, multi-user accounts, and access controls. Services with strong team features: mFax Business, HelloFax, iFax, and eFax Pro.
If you need a team fax setup, also consider whether you need a virtual fax number — a dedicated inbound number that routes to your team's shared inbox.
Factor 4: Do You Need International Faxing?
Not all internet fax services support international sending. Fax.Plus covers 180+ countries. eFax and iFax have broad international support. MetroFax and RingCentral standalone fax are primarily US/Canada.
For a full country-by-country breakdown, see our complete guide to international faxing.
Watch Out for These Hidden Costs
The Overage Trap
Most plans charge $0.10–$0.15 per page over your monthly limit. A 100-page plan used to send 400 pages costs $30–$45 in overages alone on top of your subscription fee. Always buy the plan that matches your actual average volume, not your minimum.
Setup Fees
eFax charges a $10 one-time setup fee on most plans. MetroFax and RingCentral do not. mFax Business has no setup fee.
Number Porting
If you're moving from an existing fax number, confirm the new provider supports number porting in. Most reputable services do, but it typically takes 3–10 business days. More important: verify they allow porting out — some providers make it difficult to take your number when you leave.
Cancellation Red Flags
eFax is frequently cited for difficult cancellations. Before signing up for any annual plan, check the cancellation policy and ensure you can cancel online without calling a support line.
Internet Fax vs. Traditional Fax: Is It Worth Switching?
Internet fax services are strictly better for most use cases in 2026. Here's why:
| Traditional Fax Machine | Internet Fax Service | |
|---|---|---|
| Hardware required | Yes — $150–$500 machine | No |
| Dedicated phone line | Yes — $30–$50/mo | No |
| Fax from mobile | No | Yes |
| HIPAA compliance | Depends on setup | Available from about $9/mo |
| Cost per page | $0.04–$0.10 (paper + toner) | $0.02–$0.07 |
| Audit trail | No | Yes |
The cloud fax market is growing because regulated industries — healthcare, legal, government — continue to rely on fax as a legally recognized transmission method. The machine is dying; the protocol is not. Switching to an internet fax service eliminates the hardware cost while adding security and mobility.
Final Verdict
The best internet fax service depends entirely on your situation:
- For individuals and occasional use: mFax.to is the fastest, easiest option. No subscription, no hardware — fax from your phone in under two minutes.
- For small businesses and healthcare teams: mFax Business gives you HIPAA compliance, team accounts, and a virtual fax number starting at about $9/mo. No compliance upsells.
- For tight budgets with high volume: MetroFax (500 pages under $9/mo) or RingCentral Fax if you're outside regulated industries.
- For international coverage: Fax.Plus covers 180+ countries at a competitive price.
- For enterprise with compliance requirements: eFax Protect or iFax — both are HITRUST-level, though eFax commands a premium.
For a more targeted comparison, see our guides on best online fax services and best business fax services.
Ready to start? Download the mFax app or visit mFax.to/business to get a virtual fax number and team inbox — no hardware, no phone line, no waiting.
Pricing and features current as of April 2026. Always verify terms directly with each provider before subscribing.