How to create a customer and populate the tax registration number through API

Summary:

We would like to know what's the correct sequence of API calls to create the customer with his tax registration number correctly populated.

Content (please ensure you mask any confidential information):

At the moment we are using this:
/crmRestApi/resources/11.13.18.05/hubOrganizations

to create the party in ERP. But it seems to be "ignoring" the TaxpayerIdentificationNumber that we are sending.

How can we then populate the Tax Profile information on an organization?

Version (include the version you are using, if applicable):

25C

Code Snippet (add any code snippets that support your topic, if applicable):