The Association of Accounting Technicians (AAT) has warned of a 'dramatic rise' in self-assessment filing this year, as businesses weather the lockdown restrictions in place as a result of the coronavirus (COVID-19) pandemic. Meanwhile, HMRC has started to crack down on the marketing of tax avoidance schemes. Its 'Tax Avoidance: Don't Get Caught Out' campaign aims to educate contractors on how to identify if they are being offered a tax avoidance scheme. AAT warns of 'dramati