If I understand correctly, the "buy borrow die" strategy of tax avoidance hinges on these aspects of the tax code: Buying an asset is not a taxable event. Holding onto an asset and letting it appreciate is not a taxable event. Borrowing money is not a taxable event. Holding an appreciated asset until death will step up its cost basis to the current market value (thus erasing any capital gains taxes), and it can be passed on but large amounts will trigger inheritance taxes.