The legislation of Italy, where I live, requires me to invoice for each customer order.

The invoice cannot be considered complete without the address and the national identification number of the customer (codice fiscale in Italy, INSS in Belgium...)

The customer data is used to issue the invoice and to declare my work. No other use will be made of this data. The data will not be passed on to other companies or used for advertising purposes.

You surely can. Unfortunately, if the customer refuses, I will not be able to accept the order, and we will not be able to work together.

For Italian residents, the codice f scale is sufficient.

For residents in Belgium, the INSS number can be found on the identity card / resident card and starts with the date of birth reversed (example: 910822 if I was born on August 22, 91).

For residents of other countries, this is an official identification number specific to each country.