A council in the centre of Perth has admitted to accidentally overcharging ratepayers nearly $1 million after calculation errors in its 2025-26 annual budget.

More than 4500 households in parts of the Town of Cambridge LGA were charged $999,739 more than they should have, which has affected residents in the suburbs of City Beach and Floreat.

The error was identified after a resident asked about how their rates had been calculated, which led to the uncovering of the mistake.

"An incorrect rate in the dollar was applied to properties within the Endowment Lands Area", a statement from the Town of Cambridge said today.

"The correct rate in the dollar should have been 0.001854, not 0.001995 as previously applied to issued rates notices for affected properties."

Town of Cambridge CEO

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