Yes, but many hotels that have breakfast included in rates (or even for all guests) don't do this kind of thing in localities where the VAT for lodging services is a distinct rate from the VAT for food/beverage services.
I'm sure its not great for the hotel either, but there is the complicated German law... I know many other countries with different VAT for food vs. lodging where they keep that together; but in Germany I always had it shown seperatly on my bill, no matter which hotel I was.