Boston Mayor Michelle Wu’s controversial plan to raise commercial tax rates hit another snag on Beacon Hill Monday, when it was blocked by a member of the Senate, with the City Council’s annual tax-rate-setting hearing bearing down the next day.

The state Senate delayed a vote on Boston's proposal to change its property tax rates, and will now miss the deadline for the city to finalize its 2025 property tax bills.

Sen. Nick Collins of South Boston used a procedural maneuver to delay a vote on the controversial and time-sensitive Boston property tax bill until the Senate meets again on Thursday. Boston Mayor Michelle Wu says the bill is necessary to prevent a major price hike for residential taxpayers.

The State Senate is set to take up a proposal by Boston Mayor Michelle Wu to change the way property taxes are calculated in the hope of heading off a dramatic increase in residential rates. A compromise “residential tax relief” plan worked out between Wu,