TX HB4609

Establishes Travis County as the mandatory venue for any legal action brought against the Texas Municipal Retirement System and for related State Office of Administrative Hearings proceedings

Accelerates department participation start date from the second month to the first month after the retirement system receives notice of an election to participate

Removes "maximum contribution rate" requirement from multiple provisions governing when municipalities can adopt ordinances for benefit enhancements, requiring only that obligations be funded within the amortization period

Expands annuity increase calculation options for municipalities by adding 40 percent and 60 percent multiplier choices to the existing 30, 50, and 70 percent options based on Consumer Price Index changes

Standardizes ordinance effective dates to January 1 of the year following retirement system receipt for various benefit provisions including service credit reestablishment, prior service credit, member contribution rate increases, and five-year vesting elections

Updates heir eligibility for making elections on behalf of deceased members by removing the three-heir limit and aligning estate value thresholds with Chapter 205, Estates Code small estate affidavit requirements