Under s. 77.70 (2) (b), Wis. Stats., Milwaukee County may use a portion of the additional 0.4 percent sales and use tax increase to address the ERS’s unfunded actuarial liability and payments associated with $172.4 million in outstanding Milwaukee County pension bond obligations and related interest payments as of December 31, 2024. In addition, under Act 12 requirements:
- the investment return assumption is 6.8 percent;
- employees hired after December 31, 2024, are required to participate in the Wisconsin Retirement System; and
- no increases or enhancements may be made to the ERS benefits of employees remaining in the ERS after January 1, 2024, except those required for compliance with federal law.