Apply tax on the whole account

I’m wondering if it is possible to apply taxes on the whole account?

The background is that I have an investment account where I don’t pay taxes on the individual transactions, but around this time of the year I pay a small percentage on the average market value the account had the previous year.

Can this tax be applied to the investment account and metered out to the individual shares I have in it?

You can book it without a selected security against a bank account. But keep in mind, that taxes are always only shown if the corresponding bank account is included in the analysis.