Corporation tax is included in the taxes when we calculate net taxes for withdrawals ? Or individual pay taxes on the dividend(after deducting corporate tax) which they earn as their personal income?
There has been nothing so far to suggest you need to know this level of detail in CT7, particularly as the models described are more conceptual than practical. The important point is that in principle, we include all taxes, regardless of who pays them, when we calculate net taxes. So, under the current UK tax system, for example, we would deduct the corporation tax paid by companies and then any additional tax payable by individuals on the net dividends received, eg if they are higher-rate taxpayers.