@Marian while reading your question it is not possible to understand if you’ve preferred to use account tags intentionally or because you didn’t notice we also have calculation reporting tags.
As a general financial rule you can’t split account balances. If you need to do that you have to create separate accounts for each calculation type. However depending on your configuration calculation reporting tags can also be used to report calculation totals individually.
You have two choices. You’ll read already existing samples and find a solution that fits to your case or you’ll explain your case in detail. In SambaPOS there are multiple ways to do something and without knowing how you’ve configured tips we can’t know how you can report them.
As a start this discussion might give an idea about how to report tips.