IRS urges taxpayers with high income, complex returns to check withholding Posted on August 20, 2018August 20, 2018 by Kawa Ascenzi Corbishley & Carroccio Posted in Uncategorized The IRS urges high-income taxpayers and those with complex tax returns to complete a “paycheck checkup.” Source: IRS urges taxpayers with high income, complex returns to check withholding | Internal Revenue Service