Green Party leader Zack Polanski apologises after admitting he may not have paid the correct council tax while living on a houseboat moored in east London. Multiple outlets report that questions had been raised about whether the boat was his “sole or main” residence, which would normally affect whether council tax is owed to the relevant local authority. Polanski says the issue was an unintentional mistake and that he “immediately” took steps to pay any council tax that could be found to be outstanding. Reporting also notes earlier claims from a party spokesman that Polanski rented a room at another address where council tax was included, and that he stayed on the houseboat only occasionally. Government guidance cited by at least one outlet says someone can be liable for council tax on a boat if it is their sole or main residence. Bloomberg and others add that the houseboat was not registered for the local council tax levy, prompting the apology. The coverage agrees on the central points: the apology, the council tax concern tied to the houseboat, and the stated intention to settle any amount owed.