On Schedule A, what is "other taxes" line for, and why did the software accept the deduction for $100,000 (it was paid to Nebraska for an inheritance?). RE  tax and car tax are also not income taxes, but are deductible. Only four states charge inheritance tax, so I too have never done it in 4 decades, it's rare. But this one site I referred to insisted that it's deductible on Sch A.