If you work from home you can claim deductions for all sorts of expenses!
You do need to keep records and receipts – of course.
What you can claim depends on whether you are an employee taking up remote jobs and working at home or if you are running your business from home.
If you are running your business from home you can claim a portion of your occupancy expenses like rent or mortgage interest, insurance and rates.
For more details on how to calculate the expenses and to see how this may affect capital gains on your house follow this link to the Tax office website: https://www.ato.gov.au/General/Property/Property-used-in-running-a-business/Running-your-business-from-home/
An employee working from home can claim running expenses like lighting and heating, also phone and internet.
To see details of what you can claim and how you can calculate how much to claim click on this link: https://www.ato.gov.au/uploadedFiles/Content/IND/Downloads/Working-from-home(1).pdf