How to send a fax to Spain

Why fax to Spain?

Fax remains a common channel in Spain for communicating with government offices, banks, legal firms, and healthcare providers. Many Spanish public institutions — including the tax authority (Agencia Tributaria), social security offices, and courts — accept fax as a valid form of document submission. Banks and insurance companies in Spain also use fax routinely for processing forms, claims, and signed authorizations.

If a Spanish organization lists a fax number alongside their phone and email, it is usually because they actively monitor it and expect to receive documents that way.

What you need

To send a fax to Spain with unofax you need four things:

• Your document: PDF, Word, image, or any supported file. PDF gives the best results.
• The Spanish fax number: Spain's country code is +34. Spanish numbers are typically nine digits. A Madrid number looks like +34 91 123 45 67.
• A payment method: credit card, debit card, Apple Pay, or Google Pay.
• Your email address: for delivery confirmation and proof of receipt.

No account, no subscription, no fax machine required.

Step by step

Sending a fax to Spain with unofax takes about two minutes:

• Upload your document: drag and drop or tap to select your file.
• Select Spain and enter the fax number: choose Spain from the country list. Enter the nine-digit number. unofax adds the +34 country code automatically.
• Enter your email: provide your email address for delivery confirmation and proof of receipt.
• Preview: check each page in the preview. Add a free cover sheet if the recipient requires one.
• Pay: the per-page price is shown upfront. Pay with card, Apple Pay, or Google Pay.
• Done: your fax is sent immediately. You receive a delivery confirmation once the receiving machine acknowledges receipt.

Tips for faxing to Spain

A few things to keep in mind when faxing to Spain:

• Business hours: Spanish offices usually operate Central European hours, with some offices observing longer midday breaks.
• No trunk zero: Spanish geographic numbers do not use an extra leading zero before the area code.
• Use Spanish references: include expediente, claim, policy, or case references when the recipient gives them.
• Use PDF for best quality: official forms, scans, and signed documents fax more clearly when converted to a clean PDF before upload.
• Use PDF for official forms: a clean PDF helps Spanish offices print and archive the fax clearly.

Common Spain fax situations

These are the kinds of local workflows where a fax number can still be the requested channel:

• Administrative files: Spanish public bodies and insurers may ask for signed paperwork with an expediente, policy, or claim reference.
• Legal and notary correspondence: lawyers, notaries, and courts may accept faxed supporting documents or confirmations.
• Healthcare and business forms: clinics and companies may use fax for authorizations, certificates, and signed forms.

Common questions

Quick answers about faxing to Spain:

• Can I fax to any Spanish number? — Yes. unofax can deliver to active fax lines in Spain. If the recipient has provided a working fax number, you can send to it online.
• How long does delivery take? — Most faxes are delivered within one to three minutes. Delivery time depends on the number of pages and the speed of the receiving machine.
• Can I fax documents in Spanish? — Yes. unofax sends your document as rendered, including Spanish characters and accents.
• How much does it cost to fax to Spain? — unofax charges a flat per-page rate. The price in your local currency is displayed before you pay. There are no subscriptions, setup fees, or hidden charges.