As of 15 May, IRS rebates surpassed €1.2 billion, more than double the amount reimbursed last year. By 31 May last year, IRS repayments amounted to €676 million. Up until 2017, tax returns were due in two 1-month phases. This year, for the first time, there was one continuous submission period from 01 April to 31 May for all taxpayers.