I had spent some doing research in the Inland Revenue Authority of Singapore. My experience is that removing corporate taxes would not be helpful. The divergence between coporate income taxes and individual income taxes leads to too much tax planning. Of course, this results in more resources spent on chasing a smaller amount of taxes. Therefore, the strategy is to keep top individual marginal rates closely aligned to the corporate rate on the assumption that most shareholders belong to top brackets. Singapore originally has the imputation system (dividend taxed at the hands of individual but taxes are reduced by the notional amount paid at the company level). But we are also moving away from taxing dividends altogether.
