W H AT ’ S I N V I E W 3 Form W-4 Tax Withholding: Make your changes to your W-4 tax status by using Employee Self-Service in the SAP Portal. You will find the Form W-4 under the Benefits and Payroll Tab. Easily make your changes online or come by JCK 360 to submit a paper copy. If you would like the changes to be effective with your January 2 paycheck, be sure to make the changes no later than December 10! Changes made after December 10 will take effect on the February paycheck. Remember, you can make changes to your W-4 at any time throughout the year. NEED TO MAKE TAX CHANGES FOR 201 9 ?