What is the economic feasibility of corporate income tax? In fiscal theory, the rationale for this particular tax lies in the existence of benefits from legal protection enjoyed by the corporations and private limited companies. Joseph Stiglitz has argued that this particular tax is a tax on entrepreneurship as it discourages new capital formation. Corporation's tax base depends on the amount of revenues minus expenditures for labor, materials and capital goods. The real paradox of corporate income tax is that it is preferable for the corporation to create new debt than to issue equity. In fact, the debt is considered as a deduction from corporation's tax base. Thus, it is difficult for start-ups to get the loan from the banks as the bank is not willing to take on the risk involved with the repayment of the loan since start-ups' success is uncertain. Therefore, the existence of corporate income tax hinders business investments and entrepreneurial activity in general.
The abolition of corporate income tax would be an important boost to capital formation and new business investment. In addition, many economic distortions would disappear. It should not be neglected that tax incidence in corporate income tax is not shifted to the corporation. The ultimate payers of this tax are workers, customers, suppliers and shareholders. The tax is shifted in lower wages, higher prices and lower dividends. At last, the tax also creates perverse incentives that discourage investment and, nevertheless, job creation.
Source: OECD Tax Database (link)