A specialized calculator tool where users input each co-owner's profile (ownership percentage, prior property history, residency, filing status) and the property details (price, location, new build vs. resale) to get a clear breakdown of each person's tax liability, eligible rebates, and stamp duty. The tool covers multiple jurisdictions (Canada, UK, Australia) and flags risks like co-signing implications or gifted property tax events, with citations to the relevant tax code.

Housing affordability pressures are pushing more buyers into multi-owner arrangements (parents helping children, partners pooling resources, inherited shares), while governments are simultaneously expanding and complicating first-time buyer incentive programs like FHSA, H2B ISA, and GST rebates.