In one sentenceAn official record with the Ministry of Commerce that proves the existence of the business, its activity, capital, and managers, and carries a number that identifies it in its dealings.
Simply put
The commercial registration number appears on contracts and invoices, and is required when opening bank accounts and registering with government bodies such as ZATCA and GOSI.
Its details must stay up to date: changing the activity, address, manager, or capital requires amending the registration. The procedures are in the Commercial Register Law and its regulations.
Example
A restaurant started an additional activity, event catering. Before invoicing this activity, it adds it to its commercial registration so its details match what it actually provides and its VAT registration.
Don't confuse it with
VAT numberThe registration number identifies the business with the Ministry of Commerce, while the VAT number identifies it with ZATCA.