This is one of the top most corporation tax questions. A company incur a flat tax rate of 30% unless they qualify as a base rate entity. Companies with a turnover of less than $25m may qualify as a base rate entity and would currently be taxed at 27.50%.
Many tax concessions can be made, but that can become incredibly complex.
Personal services income (PSI) may also be applied if the company receives an income from personal skills, efforts, or expertise.