You can claim from 1st July 2019 to 29th February 2020 a rate of .52c per hour of hours worked at home to cover for all expenses as well as assets under $300.
For those working from 1st March to 30 June 2020 due to Covid-19 from home you can claim a rate of .80c per hour in your tax return as a deduction.
You will need to provide a diary of the working hours for that period to calculate the total amount of hours in order to claim.
If you wish to claim the actual cost of expenses ie. gas, electricity, internet, land line, desk and computer accessories you will need to provide the actual receipts, diary of working hours for at least 4 weeks, the floor area of the home office, work out the cost of your phone or internet plan expenses – where you receive an itemised bill, you need to determine your percentage of work use over a four-week representative period.
A copy of your latest phone, internet bill would be required with your workings etc.