How to Fax to the UK from Your iPhone
You can fax to the UK straight from your iPhone in under two minutes. Open a fax app like Faxend, attach your document, and enter the recipient's number in international format with the +44 prefix.
No fax machine or landline is needed. Faxend delivers to UK numbers over its own carrier network, usually within a minute.
Faxley
Faxend Editorial · Updated July 2, 2026
Why people still fax to the UK
Fax is far from dead in Britain. Plenty of solicitors, care homes, and NHS offices still accept documents this way.
Some of these offices trust a fax over email. A fax leaves a clear transmission record. That record helps a lot with legal and medical paperwork.
You might need this for a few reasons. Maybe you signed a contract with a British firm. Maybe a relative's care home wants records sent securely. Maybe an old office has no encrypted email at all.
Faxing to another country used to mean a machine and a costly phone line. That is no longer true. Your iPhone now does the whole job on its own.
Fax also crosses system barriers in a way email sometimes cannot. It does not depend on the recipient using your email provider. The receiving machine just prints your pages. That plain reliability is why many British offices keep a line running.
Legal and healthcare work drives a lot of this demand. A UK solicitor may want signed forms by fax for a clean record. A GP surgery may request a patient release the same way. In these fields the confirmation page carries real weight, so the habit sticks around.
The rest of this guide walks you through it. We cover UK numbers, the exact steps, the cost, and what to do when a fax bounces.
What you need before you start
The setup is light. You need three things, and you likely have all of them already.
First, an iPhone with an internet connection. Wi-Fi or cellular data both work. Second, the document you want to send. A PDF, a photo, or a scan all count. Third, a fax app that supports international delivery.
The Faxend iPhone app reaches more than 120 countries, the United Kingdom included. You can also send from your browser at faxend.com/send if you prefer.
You do not need a UK phone number of your own. You only need the recipient's fax number. Faxend routes the transmission over its own carrier network for you.
If your document sits on paper, snap a photo first. The app cleans up the image and turns it into a clean fax page. Good lighting keeps the text sharp and readable.
Battery and signal are worth a quick check too. A dropped connection mid-send can interrupt a large document. A stable Wi-Fi network is the safest choice for a long contract. For a short one-page note, cellular data is perfectly fine.
It also helps to name your file clearly before sending. A tidy filename makes your own records easier to track later. This matters when you send several documents to the same UK office in one day. A quick label saves confusion when you look back a week on.
Understanding UK fax numbers
Getting the number format right is the step people miss most. A UK fax number looks different from a US one.
UK numbers use the country code 44. Inside Britain, numbers start with a leading zero, like 020 7946 0000 for London. When you dial from abroad, you drop that first zero.
So a London number written as 020 7946 0000 becomes +44 20 7946 0000 for international sending. The +44 takes the place of the leading 0. This rule holds across the whole country.
In Faxend, enter the number in full international format. Type the plus sign, then 44, then the rest without the leading zero. The app also accepts 011 44 as the US exit code if that is easier.
Double check the area code before you send. London uses 20. Manchester uses 161. Birmingham uses 121. A wrong area code sends your fax to the wrong region. You can confirm current dialing rules on gov.uk or a reference like Wikipedia's UK numbering page.
Freephone and premium numbers work differently. UK fax lines almost always sit on standard geographic numbers, not 0800 or 0845 codes. If someone hands you an 0800 number for a fax, ask them to confirm it. Most business fax lines use a normal city area code.
How to fax to the UK, step by step
Here is the full process. Each step takes seconds. The whole thing runs under two minutes for most people.
A quick word on file types. PDFs give the cleanest result because the text stays crisp. Photos work well when they are flat and evenly lit. Avoid screenshots of tiny text, since a fax renders in black and white at lower resolution.
That is the entire flow. No machine, no phone line, no trip to a print shop. If you send often, the general iPhone faxing guide covers a few extra tips worth knowing.
Ready to send your fax?
Upload your document, enter the number, and hit send. No subscription required for your first fax.
Delivery time and confirmation
Most single-page faxes to the UK land in 30 to 60 seconds. Longer documents take a little more. A ten-page contract might need a couple of minutes.
Time zones matter for business faxes. The UK sits five hours ahead of US Eastern time. A fax sent at 9 am in New York arrives at 2 pm in London. Send during UK office hours if someone must act on it fast.
Faxend gives you a delivery status for every send. You can see whether the transmission succeeded or failed. Keep that confirmation for your records, especially for legal documents.
If the line is busy, the system retries on its own. You do not have to resend by hand. A busy UK fax line often clears within a few minutes.
You can send outside office hours without a problem. The fax simply waits in the recipient's machine or inbox until they arrive. There is no penalty for sending at night. Still, urgent items get acted on fastest during the UK working day.
Delivery speed can dip a little during peak UK hours. Late morning tends to be the busiest window for fax traffic. Even then, most sends still finish inside a minute or two. If a page stalls, the retry usually clears it without any input from you.
What it costs to fax the UK
International faxing does not have to be pricey. Faxend keeps the pricing simple and clear.
The Basic plan costs $2.99 as a one-time purchase. It covers 5 pages, needs no account, and the credit lasts 30 days. That fits a single UK document nicely.
Send more often? The Standard plan runs $9.99 a month for 20 pages, with HIPAA support and full history. The Pro plan is $19.99 a month for unlimited pages and a dedicated inbound number. Every plan is HIPAA-ready.
There is no confusing surcharge to memorize for UK sends on the Basic tier. Your page credit covers the international delivery. That keeps a one-off fax cheap and easy to predict.
For a business that faxes the UK every week, a monthly plan pays off quickly. The per-page math favors the subscription once you pass a few sends. A one-time $2.99 credit stays the smart pick for a single letter or form.
Common problems and quick fixes
Most UK fax failures trace back to a handful of causes. Here is how to sort them out fast.
The number is the usual culprit. If a fax fails, check the format again. Confirm the +44 prefix and the dropped leading zero. One extra digit breaks the whole send.
Sometimes the recipient line is a phone, not a fax. Ask the office to confirm their dedicated fax line. A voice line will never answer a fax handshake.
Poor image quality causes rejects too. If you photographed a page, retake it in better light. Flat, well-lit pages read cleanly on the far end. A blurry scan can arrive unreadable.
When in doubt, send a single test page first. One page confirms the number and the line before a long document goes out. It costs almost nothing and saves a failed ten-page send. Many regular UK senders do this out of habit.
Keep a copy of every confirmation you receive. If a UK office claims a document never arrived, your delivery status settles it. That paper trail protects you on tight deadlines. It is one quiet advantage fax still holds over email.
Need to get replies back from the UK as well? A dedicated number helps. The guide to receiving faxes online explains that setup. For a wider tool comparison, see our best iPhone fax app roundup.
Still stuck? The team behind Faxend, and its editor Faxley, keep these guides current. Security stays AES-256 encrypted in transit and at rest on every single send.
Frequently asked questions
Can I fax to the UK without a fax machine?
Yes. A fax app on your iPhone sends the document over the internet to any UK fax number. No machine or landline is required.
How do I format a UK fax number when sending from abroad?
Use the +44 country code and drop the leading zero. A London number like 020 7946 0000 becomes +44 20 7946 0000.
How long does a fax to the UK take?
A single page usually arrives in 30 to 60 seconds. Longer documents take a couple of minutes, and busy lines retry on their own.
Is faxing to the UK secure?
Yes. Faxend encrypts every send with AES-256 in transit and at rest, and every plan is HIPAA-ready for sensitive records.
How much does it cost to fax the UK?
The Basic plan is $2.99 one-time for 5 pages with no account needed. Monthly plans start at $9.99 for regular senders.
Do I need my own UK number to send a fax?
No. You only need the recipient's fax number. A dedicated inbound number is only needed if you want to receive faxes back.
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