The evidential value of fax: seven countries, one method
Similar principles, diverging formalities.
In all seven countries FaxTelecom serves, a fax is not ruled out as evidence on principle, yet nowhere is it automatically worth a signed original. European and Canadian law share the same logic: whether a document is admissible is a separate matter from how persuasive it is, and a copy is judged on its accuracy. What differs are the formalities: the threshold above which writing is required, what counts as 'written form', which deeds must go through a notary. Instead of a verdict per country, you will find pointers here and where to read the texts yourself.
What the seven destinations have in common
Admissibility and weight are two separate steps. German law speaks of the free assessment of evidence (§ 286 ZPO), Spanish law of the judge's 'valoración', Italian and Portuguese law of reproductions whose accuracy the other side may dispute. The vocabulary shifts, the idea holds: producing a fax does not guarantee it will persuade.
Formalities make the difference. In Belgium, Book 8 of the Civil Code, in force since 1 November 2020, generally requires writing above €3,500 where the proof concerns a private individual. In Germany, the 'Schriftform' of § 126 BGB requires an original handwritten signature, which a fax cannot carry. And everywhere, property deeds go through a notary. The first question to ask: is the act you are sending subject to a required form?
A copy is judged on its accuracy. The Italian Codice civile (Arts. 2712 and 2719) and the Portuguese Código Civil (Art. 368) give full effect to mechanical reproductions as long as their accuracy is not challenged; in Quebec, Articles 2837 onwards of the Civil Code govern technology-based documents. Your best asset is the same in every country: the exact document kept on file, and a dated record of its sending.
Before you send: four checks
Identify what you are sending
Purchase order, notice to leave, complaint, supporting document: each has its own rules. First pin down its legal nature and what a disputed sending would cost you, and only then pick the channel.
Read the official source
Every country publishes its consolidated legislation free of charge. The table below lists the reference portal and the codes containing the rules of evidence. Prefer these texts to online summaries, which are often dated or written for another country.
Find the rule on copies
That is the one that applies to fax, together with the rule on electronic documents. Note too whether the law treats consumers and businesses differently: several countries relax the rules of proof in commercial dealings.
Ask whoever receives it
Court registry, public body, insurer, supplier: each sets its own submission rules, sometimes stricter than the law. An email or a call asking 'do you accept this document by fax?' saves you a rejection at the counter.
Official portals and reference codes
We give the name of the portal and the texts rather than a web address: official titles last, links break. Searching for that name will take you to the current version.
| Country | Official portal | Relevant codes and laws |
|---|---|---|
| France | LégifranceJournal officiel de la République française |
|
| Portugal | DRE — Diário da República EletrónicoDiário da República |
|
| Canada | Site Web de la législation (Justice Canada), LégisQuébecGazette du Canada / Canada Gazette |
Système bijuridique : common law dans neuf provinces et trois territoires, droit civil au Québec. La question se pose donc deux fois — au fédéral et dans la province concernée. |
| Germany | Gesetze im InternetBundesgesetzblatt |
|
| Spain | BOE — Códigos electrónicosBoletín Oficial del Estado |
|
| Italy | NormattivaGazzetta Ufficiale della Repubblica Italiana |
|
| Belgium | JustelMoniteur belge / Belgisch Staatsblad |
|
Who to ask, depending on the stakes
Routine sending (invoice, form, supporting document): the recipient sets the rule. Ask which format they accept and which number to use. Their answer beats any theoretical analysis, since they are the ones who will process your document.
Sending that a right depends on (notice, challenge, a filing with a deadline): consult a lawyer or notary in the country whose law applies. The gap between an admissible document and a convincing one is then measured in money or in missed deadlines.
Questions about fax evidence abroad
- Is there a common EU rule on the value of a fax?
- No. The eIDAS Regulation covers electronic signatures and trust services, but the weight of a fax is still a matter of national law. What is accepted in Lisbon is not necessarily accepted on the same terms in Munich.
- Why not sum up each country in a single line?
- Because one line can reflect neither the difference between a notice, a contract and a simple attachment, nor successive reforms. A thin summary would give false comfort on a topic where mistakes are costly. We would rather point you to the texts and the method.
- Which law applies to a fax sent from France to another country?
- The admissible means of proof generally depend on the court hearing the case and, for some aspects, on the law governing the act. Many contracts name the competent court and the governing law themselves: reread those clauses, they often settle the question.
Proof and law
In this section
Where to go next
Hand-picked pages to help you prepare, send or prove your fax.
- Pick a destination to see its country code and expected number format, then start your fax to a landline.
- Faxing personal data while staying on the right side of the GDPR.
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