www.herbertsmithfreehills.com/latest-thinking/2019-update-key-changes-to-australian-stamp-duty
See also:
www.claytonutz.com/knowledge/2019/september/costly-consequences-for-stamp-duty-oversight
Update:
www.ashurst.com/en/news-and-insights/legal-updates/australian-state-taxes-rates-and-thresholds/
hallandwilcox.com.au/thinking/nsw-backflips-on-duty-land-tax-surcharges-for-certain-countries/
chamberlains.com.au/nsw-surcharge-stamp-duty-surcharge-land-tax-deemed-inconsistent-with-international-treaties/
www.claytonutz.com/knowledge/2023/march/nsw-surcharge-stamp-duty-and-land-tax-found-to-be-inconsistent-with-certain-international-tax-treaties