Set VAT for Articles

How can I adjust the VAT for my additional items?
Where can I adjust the VAT rate for my articles?
Go to the Article Settings:

Settings/Articles

A list of all your articles will be displayed.
In the “VAT” column, you can select the appropriate tax rate for accommodation, meals, or the standard rate.

Go through the list and assign the correct VAT rate to each additional item.
Once the tax rates are set, the articles will be calculated according to the currently valid VAT rates. The relevant date is always the day you click the Billing button in the invoicing area.

Custom VAT rates are not affected and can still be set individually.