One million self-employed workers are yet to file returns As many as 1m self-employed workers and investors have not filed taxes due in January, the Telegraph reports, with many expected to face a 5% rise in bills when they do eventually file returns because of a late payment surcharge. Some 270,000 people have been hit with the charge so far, on top of a £100 fine already issued for not filing by the end of February. Andy Chamberlain, of IPSE, a freelancer trade body, said although taxpayers should get their affairs in order and pay on time, HMRC should avoid “heaping further charges on those who are already struggling”.