Here is a list of key commonwealth legislation relating to various forms of taxation. This is not an exhaustive list (see the next section for tips on how to search for legislation).
CCH Intelliconnect and Thomson Reuters Checkpoint ANZ are two great databases for commentaries resources.
CCH IntelliConnect is an excellent resource for a mixture of expert commentaries, latest tax rulings, practice guides, legislation and key cases.
Thomson Reuters Checkpoint ANZ is a major database which provides access to numerous cases, legislation, commentaries, handbooks, bulletins, and practice guidance relating to Australian taxation law.
States and territories have the power to levy several taxes including Stamp Duty, Land Tax and Payroll Tax.
For jurisdiction-specific taxing legislation and rulings, visit the relevant revenue office's website.