Receive Fax on Computer: 4 Methods, No Machine (2026)

By David Thompson · Published December 18, 2025 · Updated September 18, 2026 · 12 min read

Quick Answer: To receive a fax on your computer, sign up for an online fax service, choose a virtual fax number, and set your email as the delivery address. Every incoming fax then arrives as a PDF in your inbox and in your web dashboard, usually within seconds — no fax machine, modem, or phone line required.

Hospitals, law firms, government agencies, and banks still send millions of faxes every day. If you need to receive one of them on your computer, you have more options than you might think — from a free built-in Windows tool to modern cloud services that deliver faxes straight to your Gmail inbox.

Below is how to receive faxes on computer in 2026 — every method, what each one requires, how to set it up, and which is right for your situation. We have set up inbound numbers on all four routes, including a USB modem on a Windows 11 machine, so the requirements and failure modes here are the ones we hit ourselves. Prices and platform support were last verified on 13 August 2026.

How Does Receiving a Fax on a Computer Work?

To receive a fax on a computer, use an online fax service like mFax.to: sign up, get a virtual fax number, and every incoming fax lands in your browser or email as a PDF — no fax machine or phone line. On Windows, the built-in Windows Fax and Scan app also works if you have a fax modem, and mFax for Windows does the same natively without one.

The mirror-image question — can you fax from a computer, meaning send one — has the same short answer, yes, but a different setup. Rather than repeat it here, we walk through sending in how to fax from a computer.

When someone sends you a fax, they dial your fax number from their machine or online service. What happens next depends on how you've set things up:

• With a fax modem (traditional): Your computer's modem answers the call and digitizes the incoming signal, storing it as a file on your hard drive.
• With an online fax service (modern): Cloud servers answer the call, convert the analog signal to a PDF, and deliver it to your email or web dashboard — your computer is just the device you use to read it.

The online approach requires no hardware and works on any computer: Windows, Mac, Chromebook, or Linux.

Method 1: Receive a Fax on Your Computer With an Online Fax Service

An online fax service is the fastest, most reliable, and most flexible way to receive faxes on any computer. You get a dedicated fax number, and every incoming fax arrives as a PDF file — in your email, in a web dashboard, or in a mobile app.

What you need: Internet connection, email address. Nothing else.

On Windows: Read Incoming Faxes in a Desktop App

You never have to install anything — but on Windows you can. Since August 2026, mFax for Windows is a native desktop app on the Microsoft Store: free to install, about 46 MB, and supported on Windows 10 (version 17763.0 or later) and Windows 11, on both x64 and ARM64 PCs.

For receiving, it replaces the browser tab entirely:

• Pick your own fax number inside the app — choose a country, then a state or area, and filter by the digits you want
• Incoming faxes land in the app and open in a real desktop PDF viewer: zoom, fit width or page, rotate, and page thumbnails
• Sending works from the same window — drag a file in from File Explorer, or paste an image from the clipboard
• Every transmission is tracked, and the delivery receipt downloads as a shareable PDF

As with any internet fax service, the incoming call is answered in the cloud rather than by your PC, so a fax that arrives overnight is simply waiting the next time you open the app, your inbox, or the web dashboard. The app is free; sending faxes and a dedicated fax number require a paid subscription, and you need an internet connection and an mFax account.

Method 2: Windows Fax and Scan (Built-In, No Subscription)

Windows Fax and Scan is a free application built into every version of Windows from Vista through Windows 11. It lets your computer act as a fax machine — but only if you have the right hardware.

What You Need

• A fax modem: Internal (PCIe card) or external (USB). Most modern laptops and desktops no longer include a built-in modem — you'll need to buy one separately (typically $20–$50 on Amazon).
• A traditional landline: Standard POTS (Plain Old Telephone Service) or analog line. VoIP phone lines do not work reliably with fax modems.
• Windows computer that stays powered on: The computer must be running to receive incoming faxes. If it sleeps or shuts down, you'll miss them.

How to Set It Up

Step 1 — Enable Windows Fax and Scan

On Windows 10/11, go to Settings → System → Optional Features and check if "Windows Fax and Scan" is listed. If not, click "Add a feature" and install it.

Alternatively, search "Windows Fax and Scan" in the Start menu — it's usually pre-installed.

Step 2 — Connect Your Fax Modem

Plug your USB fax modem into your computer. Windows will install drivers automatically for most modern modems. Connect the modem to your phone line using a standard phone cord.

Step 3 — Open Windows Fax and Scan

Launch the app and click Tools → Fax Accounts → Add. Follow the wizard to select your modem as the connection device.

Step 4 — Configure Automatic Receive

Go to Tools → Fax Settings and check "Allow the device to receive fax calls". Set it to "Automatically answer after [X] rings". Two to three rings is typical.

Step 5 — Test It

Ask someone to send a one-page test fax to your number. If configured correctly, the fax will appear in your Windows Fax and Scan inbox as a TIF file within a minute.

What Are the Limits of Windows Fax and Scan?

• Computer must be always on and connected to the phone line to receive faxes
• Busy signals — one fax at a time; simultaneous senders get a busy signal
• No cloud storage — faxes only exist on your local hard drive
• Landline cost — a dedicated analog line runs $30–$60/month
• Modem compatibility — USB modems can have driver issues on Windows 11

For occasional personal use in an office already on a landline, it works. For anything else, an internet fax service is the better choice — and on Windows you no longer have to trade the app for a browser tab: mFax for Windows is a native desktop app with no modem, no landline, and no always-on PC requirement.

Method 3: Receive Faxes on a Mac

Apple has not supported fax modems since macOS Sierra (2016). The built-in fax utility is gone. If you're on a Mac made in the past several years, Windows Fax and Scan is not an option for you.

Your options on a Mac are:

Option A: Online Fax Service (Best)

The exact same process as Method 1 — sign up for mFax.to, get a virtual number, and receive faxes as PDFs in your email. Works in Safari, Chrome, or any browser. For a full walkthrough, see our guide on how to fax on Mac.

Option B: Desktop Fax App

Several third-party apps on the Mac App Store connect to online fax services and let you manage faxes without switching to a browser. Note that most Mac App Store fax apps are send-only — to receive faxes, you need a service with a dedicated web dashboard or email delivery.

Option C: Multifunction Printer (Legacy)

If you have a multifunction printer with a fax module connected to an analog phone line, it can receive faxes independently of your Mac. The printer stores faxes in memory or prints them — but they don't arrive on your Mac screen automatically.

Method 4: Receive Faxes via Gmail or Outlook

If you already use Gmail or Outlook as your primary email client, you can receive faxes directly in your existing inbox — no new apps, no new dashboards to check. This works by linking your email address to a virtual fax number through an online fax service.

How it works:

1. Sign up for mFax.to and get your virtual fax number
2. Set your Gmail or Outlook address as the delivery email
3. When a fax arrives, it lands in your inbox as an email from the service, with the fax as a PDF attachment

You can read the PDF, forward it to a colleague, sign it digitally and reply, or save it to Drive or OneDrive — all without leaving your email client.

For step-by-step email fax instructions, see our guide on how to fax from email.

Which Method Should You Use to Receive Faxes on a Computer?

Use an online fax service unless you already own a fax modem and pay for an analog landline. It is the only method that works on every operating system, delivers searchable PDFs, and answers two incoming faxes at once. Windows Fax and Scan is the fallback for a single always-on PC that is already wired to a phone line.

Where Do Received Faxes Go?

When you use an online fax service, incoming documents reach you through one or more of these channels:

mFax.to delivers through all of these. You can read a fax on your computer at 9am, then pull it up on your phone during a meeting at noon, without downloading anything twice.

Receiving Faxes Securely

Faxes frequently carry sensitive information: medical records, legal contracts, financial statements, tax documents. Security matters.

What Should You Look For in a Secure Fax Service?

• TLS encryption in transit: The fax signal should be encrypted from the sender's machine to your inbox
• AES-256 encryption at rest: Stored PDFs should be encrypted on the server
• Two-factor authentication (2FA): Protects your fax inbox from unauthorized access
• Automatic deletion settings: Required for HIPAA compliance to purge records after a retention period
• Audit logs: For compliance-heavy industries, you need a record of who accessed which document

What Does HIPAA Require for Faxes Received on a Computer?

Healthcare providers and their vendors need more than just encryption. Receiving faxes with Protected Health Information (PHI) on your computer requires:

1. A provider that will sign a Business Associate Agreement (BAA) — the U.S. Department of Health and Human Services treats any vendor handling PHI on your behalf as a business associate
2. Encrypted transmission and storage
3. Audit trails — log of every document access
4. Access controls — individual user accounts, not shared logins

mFax Business includes HIPAA compliance features. For a full breakdown, see our guides on HIPAA compliant fax and best HIPAA compliant fax services.

Troubleshooting: Not Receiving Faxes?

Whether you're using an online service or Windows Fax and Scan, here are the most common problems and their fixes:

Online Fax vs. Windows Fax and Scan: The Full Picture

Still deciding between the two? Here's the complete comparison:

For most people in 2026, the online service wins on almost every dimension. The only scenario where Windows Fax and Scan makes sense: you're already paying for a landline, you have an old modem, and you only need to receive the occasional fax on one dedicated Windows PC that's always running.

Receiving Faxes on Your Phone Too

Your virtual fax number isn't limited to your computer. With the mFax mobile app, you get a push notification the moment a fax arrives, can read the PDF in the app, forward it to a colleague, or reply by fax — all from your phone.

This is especially useful for doctors, real estate agents, lawyers, and anyone who works outside an office. For the mobile-first setup, see our guide on how to receive a fax online.

Get Started: Receive Your First Fax Today

The fastest path: open mFax — free for 7 days — pick a number, enter your email, and you're done. The whole setup takes under two minutes — less time than finding a fax modem on Amazon.

Your next incoming fax will arrive as a clean, searchable PDF before the sender even hangs up. On a Windows PC, mFax for Windows does the same as a native desktop app, free from the Microsoft Store.

If a whole team needs to read the same inbound number — with a shared inbox, audit logs, and a signed BAA — that is what mFax Business is for.

And when you need to send in the other direction, our guide to faxing from a computer walks through all six sending methods.