Offset account for tax rate DATEV

How can I assign a specific account number to a certain tax rate for my DATEV data export?
Go to the accounting settings:

Settings/Accounting

Enter the tax rate for the desired account(s). You can also create multiple accounts with the same account number in order to represent multiple tax rates (e.g. 5%/7% and 16%/19%).

This account will then be used during data export (unless another account is specified in the settings for certain types of income).