Corporate tax profits are pretty silly. Profits are an accounting fiction, the residue left over after paying expenses. It's far too easily controlled - add one fully-owned foreign subsidiary for paying IP licensing fees, and your domestic profits evaporate and turn into foreign ones.

The taxes that do make sense are ones that are much more difficult to avoid:

1. Land-value 2. Sale of registered securities 3. Sales tax or VAT 4. Personal income tax 5. Estate tax