Your net trading income should be shown in your annual tax return under the heading ‘Net income or loss from business’. It will be added to your other assessable income and taxed at your marginal tax rate.
Make sure you remember to offset any expenses you incurred gaining this income, such as internet, journals, subscriptions, telephone, and depreciation on your computer and any other equipment.

If you are using another entity, such as a company or family trust, any trading income is shown in the business income schedule of that entity. Based on your trading profit to date, expect to have to pay back
some tax this year. It might be a good idea to do some tax planning and pre-pay some of your expenses up to 12 months in advance, such as subscriptions or interest on borrowings. It is also a good idea to join a
registered tax agent’s lodgement programme so you get a bit of extra time before you need to pay the taxman.