1040 form with a pen | 2018 Income Tax Withholding Tables Now Available | Dalby Wendland & Co PC | Accountants |Business Advisors | Grand Junction CO | Glenwood Springs CO | Montrose COEmployers and employees: The 2018 income tax withholding tables reflecting Tax Cuts and Jobs Act (TCJA) changes are now available, and employees could see paycheck changes by February. The IRS has issued new income tax withholding tables for 2018 and advised employers to begin using them as soon as possible, but no later than Feb. 15. Find the IRS’s percentage method tables in IRS Notice 1036 at http://bit.ly/1Ne91he. Answers to frequently asked questions about using the new tables can be found at http://bit.ly/2D5iWJm