The IRS announced a new effort focused on high-income taxpayers who have failed to file federal income tax returns. Using Inflation Reduction Act funding, the IRS will issue compliance letters to more than 125,000 cases where tax returns haven’t been filed since 2017. This week, the IRS will begin mailing compliance alerts for failure to file a tax return. About 20,000 to 40,000 letters will go out each week, beginning with filers in the highest-income categories. The new non-filer initiative is part of a larger effort underway with the IRS working to ensure large corporate, large partnership and high-income individual filers pay the taxes they owe.