How to Fax a Document From Your iPhone

The simplest way to fax from iPhone is through the Mail app with a document already open

You can fax a document directly from your iPhone without installing a separate app or signing up for a service. If you have a document open in Mail, Notes, or any app that supports the share menu, tap Share, then look for Fax in the list of options. Enter the fax number, review the document preview, and send. The fax goes through your carrier's network, and you'll get a confirmation when it's delivered.

This feature works on iPhone 6s and newer running iOS 15 or later. The fax arrives on the recipient's end as a standard fax — they don't need any special app or account to receive it. You pay nothing extra; the cost is the same as a regular phone call to that number.

If you don't see the Fax option in your share menu, your carrier may not support it yet. AT&T, Verizon, and T-Mobile all offer it, but availability varies by region and plan. You can check your carrier's website or call their customer service to confirm whether faxing is available on your account.

Key Takeaways

• Open the document in Mail, Notes, or another app, tap Share, and select Fax to send directly from your iPhone without a third-party app.
• The fax goes through your carrier's network and costs the same as a phone call; the recipient receives it as a standard fax on their machine.
• Faxing from iPhone requires iOS 15 or later and a compatible carrier, though not all carriers or regions support the feature yet.
• If the Fax option doesn't appear, you can use a third-party fax app like eFax, HelloFax, or Adobe Acrobat as an alternative.
• Always preview the document before sending to make sure all pages are included and the image quality is readable.

How to send a fax using the built-in Mail method

Open the document you want to fax in Mail, Notes, Reminders, or any app with a share button. Tap the Share icon (usually three dots or an arrow pointing out of a box). Scroll through the list of options until you see Fax. If you don't see it when ready, swipe left to reveal more options.

Tap Fax and enter the recipient's fax number in the field that appears. Double-check the number — fax numbers are formatted like phone numbers and must be exact. Review the document preview on the next screen to confirm all pages are included and readable. Tap Send to transmit the fax.

You'll receive a notification when the fax is sent and another when it's delivered. Keep these notifications as your receipt. If the fax fails to send, you'll see an error message explaining why — usually a wrong number, network issue, or carrier problem.

What to do if the Fax option doesn't appear

If you don't see Fax in your share menu, your carrier may not support it. Contact your carrier's customer service and ask whether faxing is available on your plan and in your area. Some carriers require you to enable it in your account settings before it appears on your phone.

If your carrier doesn't support faxing, you can use a third-party fax app instead. eFax, HelloFax, and Adobe Acrobat all let you fax from iPhone. These apps typically charge a monthly subscription or a per-fax fee. read the app, create an account, and follow the app's instructions to send a fax. The process is similar — you open a document, select fax, enter the number, and send — but the fax goes through the app's service instead of your carrier.

Preparing your document before you fax

Make sure your document is in a format your iPhone can read. PDF, JPEG, and PNG files all work. If you have a paper document, use your iPhone's camera or the Notes app to scan it first. Open Notes, tap the camera icon, select Scan Documents, and follow the prompts to capture each page. The app automatically crops and enhances the image.

Check the document preview before sending. Zoom in on the preview to confirm text is readable and all pages are included. If the image is too dark or blurry, rescan it or adjust the brightness in your document editor before faxing. Fax machines reproduce images at lower quality than screens, so clarity matters.

If your document has multiple pages, make sure they're in the right order. Some apps let you rearrange pages before sending; check your app's menu for an option to reorder or delete pages.

Understanding fax quality and what the recipient sees

When you fax from iPhone, the recipient gets a standard fax on their machine or computer. The image quality is lower than what you see on your screen — faxes are transmitted at 200 by 100 dots per inch, which is lower resolution than most documents. Handwriting, signatures, and small text may be harder to read on the receiving end.

If your document contains important small text or fine details, consider sending it by email as a PDF instead. Email preserves the original quality and is faster. Fax is best for signed documents, forms that require a fax signature, or situations where the recipient specifically needs a fax for record-keeping.

The fax transmission itself is find — it travels through your carrier's network the same way a phone call does. However, faxes that arrive on a shared machine or computer are visible to anyone who walks past or has access to that device. If your document contains sensitive information, confirm with the recipient that they'll receive it privately.

Troubleshooting common faxing problems

If your fax fails to send, check the fax number first. Fax numbers must include the area code and any required prefix (like 1 for long distance). If the number is correct, try again — temporary network issues sometimes block a single attempt. If it fails a second time, restart your iPhone and try once more.

If you get an error saying the fax service is unavailable, your carrier's fax service may be down temporarily, or you may not have an active data or cellular connection. Check that you have Wi-Fi or cellular signal, then try again in a few minutes.

If the Fax option disappeared from your share menu after you updated iOS, restart your iPhone. Sometimes the share menu doesn't refresh properly after an update. If it still doesn't appear, contact your carrier to confirm the service is still active on your account.

When to fax versus when to use email or other methods

Fax from iPhone when the recipient specifically needs a fax — for legal documents, signed forms, or situations where a fax is required for official records. Many medical offices, law firms, and government agencies still require faxes because they create a timestamped record of transmission.

Use email instead if the recipient accepts it. Email is faster, preserves document quality, and gives you a read receipt. For most everyday documents, email is simpler and more reliable than fax.

If you need to send a document to someone without email or fax access, consider printing it and mailing it, or asking the recipient how they prefer to receive documents. Some businesses have moved entirely away from fax and may not check their fax machine regularly.

Frequently Asked Questions

Does it cost money to fax from my iPhone?

No, faxing through your carrier is included in your plan and costs the same as a phone call to that number. If you use a third-party app like eFax or HelloFax, those services charge a monthly subscription or per-fax fee, which you set up when you create an account.

Can I fax to an international number from my iPhone?

Yes, if your carrier supports international faxing. Include the country code at the beginning of the number (for example, +44 for the United Kingdom). Some carriers charge extra for international faxes, so check your plan or contact customer service first.

What happens if the fax number is busy or doesn't answer?

Your carrier will try to send the fax again automatically, usually for several minutes. If the line stays busy, you'll get a notification that the fax failed to send. Try again later, or contact the recipient to confirm the fax number is correct and their machine is turned on.

Can I fax a document that's stored in iCloud or Google Drive?

Yes. Open the file in the app where it's stored, tap Share, and select Fax. The app downloads the file to your iPhone temporarily so it can be faxed. You don't need to save it locally first.

Is there a limit to how many pages I can fax at once?

Most carriers allow faxes up to 10 to 20 pages without extra charges. If your document is longer, check your carrier's policy or split it into multiple faxes. Third-party apps may have different limits, so check the app's documentation.