Get ready for a more complex Form W-4. Employees fill out W-4s so their employers can withhold the correct amount of federal tax from their pay. The IRS has released a draft version of the 2019 W-4 and expects to release a final version soon. The new draft form and instructions are more complex due to the many tax law changes in the Tax Cuts and Jobs Act. Members of the American Payroll Association are questioning whether employees will understand the instructions for the 2019 draft version. They’re now separate from the Form W-4 itself and are 11 pages long.