Find out in seconds if you can legally sign documents with a Qualified Electronic Signature. Available for Switzerland and all EU countries. No account needed.
QES is available in Switzerland and all EU/EEA countries. Select your country to begin.
Choose the country that issued your passport. Your phone number can be from anywhere — Swisscom has no restriction on that.
We run a live check against Swisscom's system to see if your number is already enrolled for QES signing. Takes about 10 seconds.
If enrolled — you can sign QES documents immediately. If not yet enrolled — Swisscom verifies your identity automatically the first time you sign (about 2 minutes, no separate activation needed).
The legal framework differs, but the result is the same: a legally binding Qualified Electronic Signature.
Switzerland
ZertES — SR 943.03
EU / EEA Countries
eIDAS Regulation
How do I check if my Swiss mobile number is QES-ready?
Use the free checker at swisstrustlayer.com/qes-check. Select Switzerland, enter your +41 mobile number, and we run a real-time check against Swisscom's system in about 10 seconds. No account required.
Can EU residents use Qualified Electronic Signatures?
Yes. All 27 EU member states, plus Iceland, Liechtenstein, and Norway are covered under the eIDAS regulation. Your phone number's country does not matter — eligibility is determined by your passport (EU/EEA or Swiss). Use the free checker at swisstrustlayer.com/qes-check.
Does my phone number need to be from Switzerland to use QES?
No. The eligibility check works with any mobile number worldwide. A UAE number, a German number, a US number — all accepted. What determines your QES eligibility is your passport, not your SIM.
Check your eligibility now — free, takes 10 seconds, no account needed to see your result.