The Green Party of England and Wales has proposed a 38% windfall tax on the profits of major banks, with the aim of providing financial relief to small and medium-sized businesses (SMEs). Leader Zack Polanski stated that the proposed tax would target UK profits exceeding £800 million and could potentially reduce tax bills for a million smaller companies.

This policy idea, floated by the campaign group Positive Money, is estimated to generate £19 billion annually. Polanski contends that these funds would serve as a "lifeline" for SMEs, potentially lowering their National Insurance contributions by up to £10,500 through a doubling of the Employment Allowance.

"Small businesses lie at the heart of our communities," Polanski said. "The large banks are cashing in on the backs of the small businesses who are the real innovators and creators, and profiteering from chaos and misery while ordinary people struggle."

Polanski attributed the substantial profits of the UK's largest banks not to enhanced services but to high interest rates implemented by the Bank of England to combat inflation. He argued that this situation allows banks to profit from economic instability while smaller enterprises face difficulties.

A spokesperson for the Labour Party responded by stating that the government is actively working on initiatives to revitalize Britain's high streets. "Backing small businesses right across the country is a key part of that and, while others talk, that's what Labour is already doing," the spokesperson said. The Labour representative also criticized the Green Party's proposals as unrealistic and unfunded, contrasting them with Labour's actions such as cutting business rates for small businesses, devolving power for local workforce needs, and reducing transport costs.

When a similar proposal was raised previously, the trade body UK Finance indicated that banks already contribute through corporation tax surcharges and a bank levy.