BuiltSign works in the European Union, Iceland, Liechtenstein, Norway, Switzerland, the United Kingdom, the United States, Canada and South Africa. Here is what that means for your account and your signers.
Short answer
With a mobile number from one of these countries you can create an account and sign with an SMS code.
Text messages to Canada and United States are coming soon. Signing up with a number from there works after that.
The message always mentions BuiltSign. Who shows as the sender depends on the country of the number.
BuiltSign
Countries: Bulgaria, Croatia, Cyprus, Denmark, Estonia, Finland, Germany, Greece, Iceland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Sweden, Switzerland, and United Kingdom
There BuiltSign shows as the sender. You can't reply; to opt out or ask a question, email support@builtsign.com.
+1 844 470 8758
Countries: Belgium, Hungary, and South Africa
A name may not be used as the sender there. The text comes from our number.
+1 844 470 8758
Countries: Austria, Czechia, France, Ireland, and Spain
A sender name has to be registered there first. Until that registration is done, the text comes from our number.
+1 844 470 8758
Countries: Canada and United States
There the text always comes from a number. You can reply STOP to opt out. Text messages to these countries are coming soon.
A few phone networks replace the sender with a number of their own. The message still mentions BuiltSign. Not sure a text is really from us? Email support@builtsign.com.
Per region, the law that governs electronic signatures, with a link to the source where we have one.
eIDAS Regulation (EU) 910/2014
eIDAS applies directly in all member states. An electronic signature can't be denied legal effect or admissibility as evidence just because it is electronic. A qualified electronic signature (QES) has the same legal effect as a handwritten one. National law decides which documents need a specific form, such as a notarial deed. More on legal validity under eIDAS.
eIDAS (EEA)
As EEA countries, Iceland, Liechtenstein and Norway follow the European rules for electronic signatures (eIDAS). Here too, national law decides which documents need a specific form.
ZertES and Art. 14 CO
Switzerland recognises electronic signatures. A qualified electronic signature under ZertES is equivalent to a handwritten signature (Art. 14 of the Code of Obligations). BuiltSign does not make qualified signatures.
Electronic Communications Act 2000, section 7
Electronic signatures are admissible in evidence under section 7 of the Electronic Communications Act 2000 and are recognised in common law. The Law Commission of England and Wales confirmed in 2019 that they can be used for contracts. In England and Wales a will still needs a handwritten signature.
ESIGN Act (2000) and UETA
The federal ESIGN Act and the Uniform Electronic Transactions Act (UETA), adopted by almost every state, give electronic signatures and records the same validity as paper. ESIGN's rules don't apply to wills, family law matters and court documents, among others.
PIPEDA (Part 2) and provincial acts
Federal law (PIPEDA, Part 2) and provincial electronic commerce acts recognise electronic signatures. Which documents are excluded, usually at least wills, differs per province.
Electronic Communications and Transactions Act 2002 (ECTA)
ECTA recognises electronic signatures for most agreements. Where a law requires a signature without saying which type, only an accredited advanced electronic signature counts; BuiltSign does not make those. ECTA doesn't apply to agreements for the sale of land and wills, among others.
We only offer BuiltSign in countries where we have checked which law governs electronic signatures. That doesn't mean signing elsewhere is invalid: Australia, India and Singapore, for example, also recognise electronic signatures. See are electronic signatures legally binding.
SMS codes are sometimes abused to trigger large numbers of paid messages to expensive numbers. That is why SMS is only switched on for the countries where it is needed.
Every country has its own rules on who may appear as the sender of a text message and how people opt out. A country is only added once we follow those rules.
Let us know. It shows us where the demand is and which country to check next.
This page is general information, not legal advice. Checked on 11 October 2026. Laws change, so for an important document check the current rules of the country whose law applies.
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