Wisconsin's elections board says preliminary estimates show it will cost at least $5 million initially if same-day voter registration was eliminated.
The Government Accountability Board compiled the estimate in anticipation that the issue may come up next year in the Legislature. Gov. Scott Walker has said he would sign a bill that eliminates same-day registration, although he says it is not a priority of his.
The report dated Friday says in addition to the one-time cost tied to a law change, there would be an additional $1.9 million expense every two years associated with implementing two federal laws that would take effect if same-day registration goes away.
Wisconsin is currently exempt from the National Voter Registration and Help America Vote acts because it allows same-day registration.