A request to fax something is often a request for something else. Most of the time, whoever asked wants a signed document to arrive in a way they can trust it came from you. Fax was simply the method that got settled on, sometimes decades ago, and the form has not been updated since.

What the fax is standing in for

A faxed document does three things: it carries your signature, it arrives at a fixed destination, and it gives the sender a transmission confirmation as proof it was sent. A signed PDF attached to an email does the first two. A secure portal upload, a login-protected page for sending documents directly to an organisation, can do all three.

What to ask before you send anything

Before you look for a way to fax, it is worth putting the question back to whoever asked for it. A short set of questions usually gets you an answer quickly.

• Would a signed PDF sent by email be acceptable?
• Is there a secure portal I can upload the document to?
• If neither of those works, would post arrive in time?

Some will say yes straight away, because the fax number on the form was never the only option, just the one nobody removed. Others will say no, because their internal process genuinely still routes through a fax line. Either answer saves you time.

Why the fax number on the form is not proof

A fax number printed on an official form tells you a fax line exists. It does not tell you that fax is the only way to reach that organisation, or that the number is even monitored as closely as an email inbox or portal would be. Asking costs a phone call or an email. Assuming can cost you the price of a fax service you did not need.

A fax number printed on a letter or a form does not always mean fax is the only way in. Many of the organisations asking for one will take a signed PDF by email, a document uploaded through their own website, or something sent by post.

Solicitors

A solicitor asking for a fax is often relying on an old habit from when a fax was the accepted way to send something with a signature that could not later be denied. Most firms will accept a signed PDF sent by email, or a document uploaded through a case management system if the firm has one. Ask whoever sent you the fax number what else they would accept before assuming you need to find a machine.

GP surgeries

A GP surgery asking for a fax is usually passing on a requirement from a hospital department or a specific clinic. Plenty of practices will take a scanned form or a photo of a signed document by email, particularly for something routine like a referral letter or a consent form. Phone the surgery and ask the receptionist whether email will do before ruling it out.

Insurers

Insurers handling a claim usually have an online portal or a claims email address, even where an older letter or policy document lists a fax number. Check the claims section of the policy or the insurer's own website for a current route in, since the fax number on a printed form can be years out of date.

Government offices

Government departments vary in what they will take, and a few forms do still require fax specifically. Where a department offers a choice, post or a secure upload through its own website is normally treated the same as a fax, without the risk of a failed transmission you never find out about.

How to ask

Put a direct question to whoever requested the fax:

• Would a signed PDF sent by email be acceptable instead?
• Is there a portal or online upload I could use instead?
• If not, why does it need to be a fax specifically?

Get the answer in writing, by email or noted from the call, so there is no argument later about what was agreed. If they say no to all three, the last question usually tells you whether that is a real requirement or just the number printed on an old form.

A fax is sometimes the only route because of how a particular system logs a document once it arrives. Where that is true, the requirement usually attaches to one specific form or one specific referral pathway.

HMCTS court forms

Certain court applications still go by fax because HMCTS routes some categories of urgent or out-of-hours submission through a fax line. The transmission confirmation (the printed slip a fax produces once the pages have gone through) is treated internally as a record that the document arrived by a deadline. Where a court has told you fax is the only option for a particular form, it is worth asking whether that applies to the exact form, since not every submission to the same court needs it.

NHS referrals

Some referrals between a GP surgery and a hospital department still travel by fax because the two systems were never connected by a shared secure email gateway, and fax is the route both sides' software already handles. This tends to sit on a specific referral pathway, so the useful question is whether this particular referral needs fax.

Solicitor practices

Where a solicitor asks for something by fax, it is often because another party in the matter, a court, another firm, or an opposing solicitor, has set fax as the only channel they will accept for that document. It is not always the solicitor's own preference. Asking which side actually requires fax matters, because if it is your solicitor's own habit, a signed PDF by email may do just as well.