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.

The Massachusetts Senate tabled a vote on Mayor Michelle Wu’s property-tax proposal until Thursday, which Wu has said would be too late to put altered tax rates into effect.

Boston Mayor Michelle Wu caught a break Monday when the absence of a Republican lawmaker who blocked her plan to hike commercial tax rates on two occasions last week allowed the bill to pass the

Boston Mayor Michelle Wu has been attempting to enact a contentious plan to temporarily increase commercial property tax rates.

South Boston state Senator Nick Collins moved to postpone a vote on Boston Mayor Michelle Wu’s proposal to temporarily adjust the city’s property tax formula.