Fax and proof: one method for seven countries

Similar rules, different formalities.

Across Faxeroo's seven destinations, no legal framework prohibits fax as evidence, and none automatically substitutes it for a handwritten original. European and Canadian legislation follow the same logic: courts separate admissible documents from persuasive ones, and assess a copy by its accuracy. The formal requirements differ by jurisdiction: the financial threshold at which a signed document becomes compulsory, the definition of “written form”, and the notary's exclusive authority over certain acts. This page does not issue a per-country ruling; it provides reference points and directs you to the relevant texts.

The common foundation of the seven destinations

Admissibility and evidentiary weight are distinct concepts. In Germany, the court evaluates proof freely under § 286 ZPO; in Spain, the judge performs a “valoración”; in Italy and Portugal, the opposing party may challenge the reproduction if it is not faithful. Although the terminology differs, the underlying principle remains: simply sending a fax does not guarantee that it will be persuasive.

The countries differ above all in their formal requirements. Book 8 of the Civil Code, applicable in Belgium since 1 November 2020, in principle requires signed written proof for any transaction of at least €3,500 asserted against an individual. In Germany, § 126 BGB defines “Schriftform” as a hand-written signature on the original — something a fax transmission lacks. In every country, real property passes through a notary. First, ask whether the act you are faxing has a mandatory form.

Credibility determines the validity of a reproduction. Both the Portuguese Civil Code (article 368) and the Italian Civil Code (articles 2712 and 2719) afford mechanical copies their full probative force until their accuracy is disputed; in Quebec, the Civil Code addresses technological documents beginning at article 2837. Across different legal systems, your strongest protection remains unchanged: the original document kept on file, together with a timestamped record of the dispatch.

Four checks before sending

  1. Name what you are sending

    Purchase order, notice, complaint, supporting document: each document has its own regime. Establish its legal nature and the cost of a contested send first; the choice of channel comes after.

  2. Go to the official source

    Each state puts its consolidated legislation online for free. The table points to the official portal and the codes carrying the rules of evidence. Those texts take precedence over summaries found online, which frequently turn out to be outdated or drafted with a different jurisdiction in mind.

  3. Spot the treatment of copies

    That is what governs fax, along with the rules on electronic documents. Also check whether the law separates individuals from businesses: several countries relax the requirements between traders.

  4. Ask the recipient

    Court registry, government office, insurer, supplier: each imposes its own procedures, sometimes stricter than the law. One question — “will this document be accepted by fax?” — saves you a refusal at the counter.

Where to read the texts: portals and codes

The table names the portals and the texts, without copying any web address: official titles outlive changing links. Search the name and you will reach the current consolidated version.

Where to read the texts: portals and codes
CountryPublic portalApplicable texts
FranceLégifranceJORF, publication officielle de la République française
  • Code civil
  • Code de commerce
PortugalDRE — Diário da República EletrónicoDiário da República
  • Código Civil
  • Código de Processo Civil
CanadaPortail législatif de Justice Canada et LégisQuébecGazette du Canada / Canada Gazette
  • Loi canadienne sur la preuve
  • Code civil du Québec

Le Canada associe deux traditions : la common law régit neuf provinces ainsi que trois territoires; le Québec relève du régime civiliste. Deux échelons sont à examiner : le fédéral et la province concernée.

GermanyGesetze im InternetBundesgesetzblatt
  • Bürgerliches Gesetzbuch (BGB)
  • Zivilprozessordnung (ZPO)
SpainBOE — Códigos electrónicosBoletín Oficial del Estado
  • Código Civil
  • Ley de Enjuiciamiento Civil
  • Código de Comercio
ItalyNormattivaGazzetta Ufficiale della Repubblica Italiana
  • Codice civile : il sesto libro, sulle prove
  • Codice di procedura civile
BelgiumJustelMoniteur belge / Belgisch Staatsblad
  • Code civil : le livre dédié à la preuve
  • Code de droit économique

The right contact, depending on the stakes

For a routine transmission — invoice, form, or attachment — the decisive factor comes from the recipient. Inquire which format they will accept and which number to dial. Their answer outweighs any abstract analysis: they are the individuals who will open your document.

When the send creates or protects a right — a notice, a dispute, a declaration concerning a deadline — get advice from a lawyer or notary in the competent country. The difference between admissible and convincing comes at a cost there, and sometimes deadlines are missed.

Proof by fax abroad: your questions

Does Europe apply one shared standard to what a fax is worth?
No. Each country still decides in its own law what a fax is worth; eIDAS only harmonises e-signatures and related trust services. A fax accepted in Lisbon is therefore not guaranteed the same weight in Munich.
Each country in one sentence: why not?
Because the answer changes with the document: terminating a contract, signing one or sending an appendix are not treated alike, and reforms keep shifting the rules. A one-line summary would sound reassuring and could prove expensive. So we point you to the texts and show you how to read them.
My fax leaves France for abroad: which law applies?
Admissible evidence follows, as a rule, the court seized and, on certain points, the law that governs the act. That said, many contracts pick their own court and their own law: reread those clauses, the answer is often there.