Why this matters: Questions over politicians’ tax arrangements can become politically sensitive and affect public trust. Date: 12 May 2026 Tags: Politics, Tax, UK, Green Party Summary: Green Party leader Zack Polanski admitted he may owe council tax on a London houseboat. The party said Polanski had taken steps to pay any council tax owed. A spokesperson described the issue as an “unintentional mistake” and said Polanski apologised. Questions focused on whether the east Lond