Accountants can now access a greater level of information about you from ATO tax portals, but you should still gather all information relating to your income and expenses for the year. Income will include PAYG, investment, and business income, as well as foreign investments and government payments. Ensure you have receipts for any work-related or self-education expenses so your accountant can advise if they are eligible claims for your occupation. You’ll also need to provide rental property statements and expenses relating to other investments.