Best online fax alternative to eFax

Fax.Plus vs. eFax: side by side

eFax figures are for Business, its highest plan with published limits; Corporate is quoted individually. eFax plan details are from the eFax pricing page and legal terms as of September 2026. Fax.Plus details are from the Fax.Plus pricing page.

Why enterprise teams look for an eFax alternative

You can price the whole rollout before a sales call

Fax.Plus publishes every plan, including Enterprise. You can work out the cost for your page volume, members, and numbers in a few minutes and take the figure to procurement. On eFax, the plan built for large organizations, Corporate, is quoted through a sales conversation.

If your volume goes well beyond 4,000 pages a month, the Fax.Plus team offers high-volume plans. You start that conversation with a public baseline already in hand.

Every member is included

Fax.Plus Enterprise includes unlimited members. Adding a new department, a second clinic, or temporary staff doesn't change the bill. Admins manage members, roles, and fax numbers from one admin console, and SSO is included on Enterprise. Assign fax numbers to members or teams, so everyone who handles a line sees its faxes. Owners and admins also get an analytics dashboard with fax usage per member and per billing cycle, and every fax shows a clear delivery status, including why a send failed.

On the eFax Business plan, each user beyond the first five adds $10 a month. A 25-person team pays for 20 extra users on eFax Business, $200 a month on top of the plan.

Fax that works with AI assistants

Fax.Plus offers a hosted MCP server, and was the first enterprise fax provider to ship one. It lets AI assistants such as Claude, ChatGPT, and Copilot send faxes, find received faxes, check delivery status, and manage contacts on request. It is available on paid plans starting with Basic, and Enterprise adds Personal Access Tokens with configurable scopes. MCP is not available on accounts with Advanced Security Controls, such as HIPAA accounts, which use the API and fax streaming instead.

Real-time fax streaming

With fax streaming, Fax.Plus sends a fax_page_received webhook event the moment each page is received, and the page is available right away through the API. Intake can start on page 1 of a referral packet while the rest is still arriving. Streaming is enabled on request for the whole account, and it works on HIPAA accounts.

Webhooks built for production, and a public API

The Fax.Plus API is included on Enterprise. Its documentation is public at apidoc.fax.plus, so your developers can review endpoints and webhook events before anyone signs anything. Webhooks are signed so your server can verify each event, can be filtered by event type and fax number, and come with a delivery log, replay of missed events, automatic retries, and alerts when an endpoint keeps failing.

For a full comparison of fax APIs, including eFax, see our guide to the best fax API and webhooks.

AI data extraction comes with Enterprise

Enterprise includes 1,000 AI credits every month for Fax.Plus AI. AI Data Extraction pulls names, dates, IDs, and up to 20 custom fields out of each fax, and AI Text Transcript turns a fax into copyable text. Admins can set extraction to run automatically on received faxes, so the fields are ready when someone opens the fax.

Your data stays where you need it

Fax.Plus Enterprise lets you choose where your fax data is stored, from more than 40 locations, including the United States and Canada. Primary storage and backups can sit in the same data center or in separate ones. Admins can also set how long faxes are kept, down to zero days. For healthcare teams, Enterprise includes HIPAA-compliant faxing with a signed BAA, and Alohi's compliance program also covers Canada's PHIPA.

Alohi's ISO 27001 and SOC 2 Type 2 certifications are issued by EY CertifyPoint, an independent certification body. Full details are on the Alohi compliance page.

Fax from the tools your team already uses

Fax.Plus works inside the apps your team has open all day. Send faxes from Word, Excel, and other Microsoft Office apps, get fax notifications in Microsoft Teams and Slack, and fax straight from Gmail and Google Drive. Healthcare teams get EHR integration on Enterprise, so faxes work alongside patient records. See all Fax.Plus integrations. Faxes that need a signature can be forwarded to Sign.Plus, Alohi's own e-signature product, to sign or request signatures under the same account.

How to switch from eFax

Switching takes five steps. The order matters, because an eFax account that closes too early can take your stored faxes, and possibly your number, with it.

1. List your numbers and workflows

Write down every eFax number you use, who receives faxes on each one, including email addresses that get fax notifications, and anything connected to it: email routing, integrations, or an API workflow. This becomes your setup checklist on Fax.Plus.

2. Check how you got each number

Whether you can bring a number with you depends on where it came from:

• You ported it in to eFax from another provider. Under eFax's terms, you can usually port it out when you close the account. The port request from your new provider has to reach eFax's carrier within 30 days of the account closing, your eFax balance has to be paid, and eFax charges a $40 administrative fee per number.
• eFax assigned it to you. eFax's terms say eFax is the customer of record for the numbers it provides and doesn't have to let them be ported out. Plan for a new Fax.Plus number and a changeover period. Tell your regular senders about the new number early, and keep both numbers active for a while so nothing is missed.

Not sure which applies? Submit the Fax.Plus porting request form anyway. The team checks whether your number can be ported and replies within one business day.

3. Set up Fax.Plus and start the port

Choose your plan, invite your team, and set up routing. If your number is portable, Fax.Plus assigns you a temporary number while the port is in progress, and asks for two documents: a signed Letter of Authorization (LOA) and your latest eFax invoice showing the number. The help center explains how to fill out the LOA and walks through porting from eFax to Fax.Plus step by step. Porting is free. Porting a US or Canadian number requires the Premium plan or higher, and on Business or Enterprise you can keep the temporary number alongside the ported one.

4. Download your faxes from eFax

When an eFax account closes, you lose access to the faxes stored in it. Download everything you need to keep, including any records your retention policy requires, before you cancel.

5. Cancel eFax at the right moment

For a ported number, wait until the port is complete and faxes are arriving on Fax.Plus, then cancel. Keep the number active with eFax until the port is complete. Fax.Plus needs it in service to move it. eFax's terms also allow numbers to be reassigned to other customers after cancellation, so don't leave a number in limbo.

Cancelling eFax online doesn't work in every case, for example with multiple numbers, an annual plan, or an outstanding balance. Our eFax review walks through each cancellation route and what to save before you start.

Is Fax.Plus the right eFax alternative for you?

Fax.Plus fits organizations that want to budget from a public price, include everyone who handles faxes without per-user fees, build on a documented API, and choose where their fax data lives. Healthcare teams get HIPAA-compliant faxing with a signed BAA on Enterprise, and Alohi's compliance program covers Canada's PHIPA too.

Contact the enterprise team about volume pricing and migrating several numbers at once, see what's included in Fax.Plus Enterprise, or compare plans on the pricing page. Enterprise can be paid by invoice, with a purchase order, or by ACH or bank transfer. You can also start on the free plan and try it first.