Use

In tax accounts, you can specify the type of tax on sales/purchases (input or output tax) that can be posted to the account.

In rare cases, it is useful to assign a certain tax code to an account. You enter the tax code in the master record in this case. Only this tax code can be used when posting to this account. If a G/L account is not tax relevant, you may make no specification in this field. For more information on sales tax and other taxes in your system, see the documentation FI General Topics .