The Swiss business identification number, written CHE-123.456.789, which every company registered in Switzerland receives.
Also called: UID, CHE number, business identification number
The UID (Unternehmens-Identifikationsnummer) identifies a company across Swiss authorities. It is the basis of the Swiss VAT number and appears in the commercial register.
Showing it in the legal notice and on invoices helps customers verify a business.
Why UID number matters in Switzerland
Swiss buyers – and AI tools checking a company – can look up a UID in public registers within seconds. It builds trust, especially for new or foreign providers.
Our tip
Add your UID to the legal notice and to the Organization schema of your website.
Related terms
- Zefix (commercial register) – The central Swiss index of companies registered in the cantonal commercial registers.
- Swiss VAT (MWST / TVA / IVA) – Switzerland's value added tax, with a standard rate of 8.1 % since 2024 and reduced rates for some goods and accommodation.
- Legal notice (Impressum) – The page that names the company behind a website, with legal name, address and contact details.
- revFADP (Swiss data protection law) – The revised Swiss Federal Act on Data Protection, in force since 1 September 2023.
Learn more
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Frequently asked questions
What is UID number?
The Swiss business identification number, written CHE-123.456.789, which every company registered in Switzerland receives.