Here are some important links.

Tax Practitioners Board: the Board which administers the Tax Agent Services Act 2010 and maintains a register of registered Tax Agents and BAS Agents:

www.tpb.gov.au

Australian Taxation Office: the organisation which administers tax affairs:

www.ato.gov.au

MYOB:

www.myob.com.au

Reckon:

www.reckon.com.au

Xero:

www.xero.com