Relevant to company/trust senario Use correct taxation rates applicable include the company tax rate. Johnstone and Joleen Straw each own 50% of the issued shares in the company. The company contributed $20,000 into a superannuation fund on Johnstone's behalf, which is a taxation deduction to the company. For the purpose of this case study, ignore the impact of the commissions paid or incurred on the superannuation contributions paid into the superannuation fund for Johnstone