"For 2018, there is increased importance to provide an annual notice of withholding election to retirees and beneficiaries based upon the changes in individual income tax rates resulting from the federal tax bill ... [B]ecause there were changes to the tax rates and the brackets of taxable income to which the rates apply, it will be important for individuals to consider whether they want to change their withholding in order to align their withholding with the changes in the tax law."  MORE >>