• States that automatically file extensions when you file a federal extension:
Arizona, Arkansas, Connecticut, Delaware, Georgia, Illinois, Indiana, Kentucky, Maryland, Michigan, Mississippi, Missouri, Nebraska, New Jersey, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, West Virginia, Wisconsin
• States that automatically file extensions independent of federal extension status:
Alabama, California, Colorado, Hawaii, Idaho, Iowa, Kansas, Massachusetts, Minnesota, Montana, New Hampshire, Utah, Virginia
• States that have no income tax and therefore no state extension:
Alaska, Florida, Nevada, South Dakota, Texas, Washington, Wyoming