Step 1: Under My Profile on the left, click PROJECT START WORK.

Step 2: Click ADD in the W4 field.

Step 3: Complete the Federal Withholding section or click I'M CLAIMING TAX EXEMPT STATUS if applicable.

Step 4: Complete the State Withholding section.  If your state withholding is the same as federal, click COPY FROM FEDERAL.

Step 5: Click SAVE.

NOTE: The W4 does not have to be approved by the employer.  A new W4 can be added by the employee at any time.