Corporation tax created a separate system for taxing the income of corporations, where previously they had paid income tax in the same way as private individuals. Capital gains tax is charged on the disposal of assets, and is based on any "real gain" made from the disposal.
Business tax established a distinct system for taxing corporate income, which previously followed the same taxation procedure as individual taxpayers. Capital gains tax is levied on asset disposal and is based on any "real profit" generated from the transaction.