New York, New York - A judge has ordered a temporary block on a New York City tax on wealthy homeowners proposed by Mayor Zohran Mamdani and New York Governor Kathy Hochul.

According to The Wall Street Journal, Judge Wayne Ozzi entered a temporary restraining order mandating that the city's Department of Finance remove the tax roll of 960,000 properties it published last month.

The order also halted the city from enforcing rules and actions listed on a mailer sent out to 17,000 homeowners.

Mamdani and Hochul first proposed the tax in April, explaining it would be an annual surcharge on residential properties in NYC that are not occupied as a primary residence or rented to someone else.

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At the time, Mamdani – who identifies as a Democratic Socialist and ran on a "tax the rich" platform – described the move as getting "one step closer to balancing our budget by taxing the ultra-wealthy and global elites."

The judge's order came in response to a lawsuit filed last Friday from a group of three homeowners who claim their properties were wrongly added to the list.

The suit does not challenge the legal basis for the tax but instead argues its rollout has been botched.

A spokesperson for Mamdani said that while they disagree with the ruling, they are "confident in both the pied-à-terre surcharge and the City's ability to implement it fairly and effectively."

They also revealed that the city's Law Department intends to appeal the ruling immediately in order to halt the temporary block so that the rollout can proceed.