IRS Criminal Investigation reminds taxpayers to file accurate returns Submitted article CINCINNATI — The Internal Revenue Service’s Criminal Investigation Division (IRS-CI) is reminding taxpayers to file accurate tax returns and choose a tax preparer wisely. The nation’s tax season starts on Friday when the agency begins accepting and processing 2020 tax year returns. U.S. persons are subject to tax on worldwide income from all sources. Most taxpayers meet this obligation by reporting all taxable income and paying taxes according to the law. However, those who willfully hide income should know that the IRS works across its divisions to ensure the highest possible tax compliance. Taxpayers found to be committing fraud may be subject to penalties including payment of taxes owed plus interest, fines and jail time.