The ATO advises:
Lodgement date for companies FY09 tax return has been extended from 15th May 2010 to 14th June 2010.
Lodgement date for individuals and trusts has been extended from 5th June 2010 to 12th June 2010, however those with tax payable still need to have this paid by 22nd May 2010.
If you are in any doubt as to when you need to lodge, or pay, please contact us.