He also promised to seek income tax law changes that he said would help to lower federal deficits and would stimulate economic growth. These included: reducing individual income tax rates across the board by 20 percent, maintaining the Bush administration-era tax rate of 15 percent on investment income from dividends and capital gains (and eliminating this tax entirely for those with annual incomes less than $200,000), cutting the top tax rate on corporations from 35 to 25 percent, and eliminating the estate tax and the Alternative Minimum Tax. He promised that the loss of government revenue from these tax cuts would be offset by closing loopholes and placing limits on tax deductions and credits available to taxpayers with the highest incomes, but said that that aspect of the plan could not yet be evaluated because details would have to be worked out with Congress.