By Steven J. Oshins, Esq., AEP (Distinguished) Prior to the Trump Tax Act, state income taxes paid were deductible against federal income tax. However, the Trump Tax Act limits the amount of the federal income tax deduction for state income taxes paid, real property taxes paid and sales taxes paid to a cumulative (yes, cumulative!) total of $10,000 per year. The $10,000 is used up for property taxes only for many of our clients. Therefore, state income taxes paid are essentially no longer deductible! This is why state income tax avoidance planning has arguably become the hottest area of estate…