San Francisco's transit agency will cut Muni service by 4% this summer as it faces a $50 million budget shortfall. Why it matters: Top officials at the San Francisco Municipal Transportation Agency (SFMTA) have said the current budget deficit — which could reach $320 million by July 2026 — is the worst financial crisis it's faced in its 108-year history and could lead to the elimination of Muni lines.

Muni bus on the 5R Fulton Rapid line at a crosswalk with high-rise buildings in the background, Embarcadero neighborhood, San Francisco, California, June 7, 2024. Photo: Smith Collection/Gado via )

San Francisco’s transportation agency is set to cut Muni service by 4% this summer, a dramatic move as the transit system confronts a $50 million budget shortfall. To help close that gap, planners at the San Francisco Municipal Transportation Agency are contemplating three scenarios,