An estimated half a billion euros worth of taxes went undeclared over a 10-year period, data published in parliament shows. The figure of undeclared taxes has been on an upward trajectory since 2010, when some 13,358 people failed to declare an estimated €18.5 million in tax dues. Undeclared taxes peaked at an estimated €105 million in 2019, thanks to 27,596 people reneging on their tax reporting obligations. Over the 10-year period, €532.9 million in tax went undeclared, the figures show. Finance Minister Clyde Caruana said in reply to a parliamentary question by PN MP Jason Azzopardi that the ever-rising figure of undeclared taxes was down to two reasons. Firstly, Caruana said, the calculations were cumulative, meaning that unsettled dues continued to be counted in subsequent years. Secondly, there has been a year-on-year increase in foreign workers, some of whom were either not aware of their initial tax reporting obligations, or left Malta before their first tax declaration was due. The figure of unpaid taxes fell to €33 million last year. Caruana said this reduction in undeclared taxes was due to Inland Revenue getting tax information for new workers automatically from...