One Firm One Day will see thousands of PwC people across the UK take part in fundraising and volunteering for a number of charities. Funds raised this year will support PwC's national charity partner, Mental Health UK.

With approximately 7.5 million people in the UK living with a diagnosed mental illness, and an estimated one in four people experiencing a mental health problem every year pre-pandemic, Mental Health UK programmes aim to increase everyone’s knowledge and understanding on how to protect and maintain mental health, and deliver programmes that support people with complex mental health needs through four founding charities.