How long does a fax take to send?

Updated October 25, 2026 · PlusFax team

A fax takes about 30 to 60 seconds per page plus a few seconds to connect. What slows it down, how long retries take, and when to expect your delivery confirmation.

The short answer

About one minute per page, give or take. A single page is normally confirmed within one to two minutes of being queued. A ten-page document takes somewhere between six and twelve minutes. Those figures include dialling, the handshake between the machines and the confirmation of the last page.

Where the time goes

• Dialling and ringing: 5 to 15 seconds.
• Handshake: 5 to 10 seconds, while the two machines agree on a speed and a resolution.
• Each page: 20 to 60 seconds at normal resolution. A page of plain text sits at the fast end; a dense form, a photo or a signature-heavy contract at the slow end.
• Between pages: a second or two for the receiving machine to acknowledge the page just sent.
• End of call: a few seconds for the final confirmation, which is what turns the status to Delivered and triggers your receipt email.

Fax machines negotiate a speed of up to 33,600 bits per second and fall back to 14,400, 9,600 or lower on a poor line. Each step down roughly doubles the time per page. That, more than anything, explains why one fax takes a minute and another takes three.

What makes a fax slow

• Dense pages. Fax compresses white space extremely well and dark areas badly. A scanned photo or a page with a grey background can take two or three times as long as text.
• Fine resolution. Scans at fine (200 × 200 dpi) carry twice the data of standard (200 × 100 dpi). Fine is worth it for small print; otherwise standard is faster and looks the same.
• The receiving line. An old machine or a VoIP line at the other end forces a lower speed. Nothing on your side changes that.
• Busy numbers. If the line is engaged, the fax waits and redials. Each attempt adds a few minutes. Most busy faxes are delivered on the second or third try.
• International routes are not slower in themselves, but older equipment is more common in some countries. See faxing internationally.

Realistic timings

When you get the confirmation

The status page updates as the fax progresses: queued, dialling, sending page 2 of 5, delivered. The email receipt is sent the moment the receiving machine acknowledges the last page, usually within seconds of the status changing. If you do not see the email, check spam; the status page is the authority either way.

If it is taking longer than this

A fax still showing "sending" after 15 minutes is almost always retrying a busy or unanswered number; the status page says so. A fax that has failed shows the reason instead, and the failed fax guide explains what to do for each. You are not charged for a fax that does not arrive.

Making your own fax faster

• Send a PDF exported from the original document rather than a scan of a printout.
• If you must scan, use black and white rather than greyscale, at standard resolution.
• Leave out pages the recipient does not need; a cover sheet is useful for a shared machine but not for a one-page form.
• Avoid dark backgrounds, large logos and photographs unless they are the point of the fax.

Then upload on the Send a fax page; the exact page count and price appear before you pay.

Frequently asked questions

Related guides

• Why did my fax fail, and how to fix it · Busy, no answer, no fax tone, partial pages: what each one means and what to do next.
• How to send a fax online · The four steps from a PDF on your screen to a confirmed delivery, and what to check before you press send.
• How to send a fax to another country · Number format, the trunk-zero rule, a country code table and typical delivery times abroad.
• How to send a fax from an iPhone · Scan with the built-in document scanner, send from Safari, keep the receipt in Mail.