This is a brief summary involving transfers of land between a married couple or de facto partners where there is no breakdown in relationship. See your lawyer before attempting this as many side issues are involved. Note that de facto partner is defined under the Act as Legislation s104B Duties Act 1997 (NSW) http://www5.austlii.edu.au/au/legis/nsw/consol_act/da199793/s104b.html Going from one name to both names possible? Yes, if the main residence and both end up as 50/50% tenants in common or joint tenants then it can be exempt from duty. Only applies to residential land as defined under s104A Investment Property? No exemption available. Transfer from one name to the other name possible? Yes, but there are no stamp duty exemptions whether main residence or investment property However, transferring in stages may help reduce duty. see Tax Tip 50: Minimising duty on Spousal Transfers https://propertychat.com.au/community/threads/tax-tip-50-minimising-duty-on-spousal-transfers.4579/ Consideration? Can be done at full consideration and still exempt from duty.