Members of Congress Tax Accountability Act of 2017 This bill amends the Ethics in Government Act of 1978 to require Members of Congress to include in their annual financial disclosure reports the amount of any delinquent tax liability owed to the United States or any state or local government entity. The appropriate congressional ethics committee is required to open an inquiry immediately into the tax delinquency of that Member to determine: (1) his or her total delinquent tax liability and reason for such delinquency, (2) whether the Member has a plan to eliminate it, and (3) whether it has reflected poorly on Congress. Such Member shall arrange with the Secretary of the Senate or the Chief Administrative Officer of the House of Representatives, as appropriate, and the Internal Revenue Service to have an appropriate amount of his or her salary designated to pay the taxes owed to the United States within a reasonable time period.