The plan includes long-held Republican goals of reducing the corporate tax rate and simplifying the tax code. It lowers the corporate tax rate to 20 percent and eliminates four income tax brackets. It doubles the standard deduction and increase the child tax credit. It also repeals the estate tax but keeps the deductions for mortgage interest and charitable giving, all tax breaks that tend to impact high-income tax payers. But it is expected to cost trillions of dollars and Republicans haven't yet presented a clear way to pay for it.Bad news for Arkansas taxpayers who itemized deductions. No more deduction for the state income tax. That'll mean a tax increase for a lot of people. Charitable and mortgage deductions are preserved.