Donald Trump’s massive tax deduction explains why he so wants to get rid of estate taxes — you can take depreciation on buildings *but* you get bit when you sell the property (if I bought it for 1 million, took a quarter mil in depreciation, but then sold the thing for 2 million dollars … your net gain is 1.25 million dollars). Or when you die and it goes through probate.
*But* if we get rid of the estate tax … then someone without financial need to sell their buildings can avoid taxes due to depreciation, hand the properties over to their beneficiaries without incurring tax … and, bonus, those beneficiaries can continue writing off depreciation against their earnings.