Estimate inheritance, estate and gift tax exposure across 21 fully modeled countries (US with all 50 states, UK, France, Germany, Spain, Italy, Ireland, Netherlands, Greece, Portugal, Denmark, Canada, Japan, South Korea, Philippines, South Africa, Taiwan, Thailand, Finland, Iceland) with treaty relief, per-asset breakdowns and what-if modeling. Built for families, wealth managers and family offices. All computation happens in your browser — enable JavaScript to use the calculator.