Business and staff
ID
Abbreviation for identification
In short and in plain language
ID stands for identification.
Here it means a number that clearly marks a person, a firm or a record.
One example is a number used for value added tax. It marks a business.
If a business has one, it can be one of the details it must give. These go in the legal notice.
Definition
ID stands for identification, here in the sense of a number that uniquely identifies a person, company or record. The VAT ID, for example, identifies a business for VAT purposes. Where one exists, it can be part of the mandatory details in a legal notice.