A good estate plan will help make sure not only are your wishes are carried out when you die, but that they are also carried out in a tax effective way. It can also help if you become unable to make your own decisions.
An estate plan records what you want done with your assets after your death. It can include documents such as your will, a testamentary trust (as part of your will), and
superannuation binding nominations.
It can also cover how you want to be cared for (medically and financially) if you can no longer make your own decisions. This part of your estate plan may include documents such as an enduring power of attorney,
enduring power of guardianship (giving someone the right to choose where you live and to make decisions about your medical care) and an advance healthcare directive (what medical treatment you want).
The documents you choose will depend on your situation and what you're comfortable to trust others with.