No. You do not have to fill out a new W-4 form every year if you already have one on file with your employer. However, it's a good idea to check on yourtax withholdingat least annually and as your life changes.
You’ll need to fill out the second section if you have more than one job or your spouse works and you plan tofile your taxes jointly. There are two ways to complete this step. One way is to use the new Multiple Jobs Worksheet found on Page 3 of the new W-4 Form. But what if ...
To report state income tax information, you must include your state ID number (state EIN) on Box 15. For Boxes 16 to 20, follow a similar process as Boxes 1 to 4. Some wages may be exempt from federal income tax, but not state or local income tax, so Boxes 16 and 1 may differ....