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.

A senator from South Boston delayed action Monday on a controversial, time-sensitive Boston property tax reclassification bill, which is now on ice until after the deadline for action recommended by Boston Mayor Michelle Wu.

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,

The state Senate delayed a vote Monday on Boston’s request to shift its property tax burden away from homeowners, potentially jeopardizing the city’s ability to include the change on this year’s tax bills.