June 27, 2024 - Deadline for municipal clerks to send absentee ballots to voters with an active request already on file- Municipal clerks can begin mailing absentee ballots once official ballots are received and have until June 27, 2024 to send ballots to all voters with a request on file by that day. Requests received after June 27, 2024 must be fulfilled within 24-48 business hours

https://myvote.wi.gov/en-us/Voter-Deadlines