GST isn't just a business owner's problem—if you're developing, subdividing, or buying commercial property, it could hit your bottom line hard. In this Tax Tuesday Wealth Coffee Chat, Daniel MacPherson breaks down when GST applies, how to use the margin scheme to save thousands, and what investors need to know about the “going concern” exemption on commercial properties. Don't let GST turn your next deal into a disaster—get smart before you sign.