You may have noticed a change in the w-4 form... What's up with that?
This article here will take you through how to fill out the new form + an in-depth look at the changes.
This article here will take you through what you need to fill in if you are a single-filer.
This article here will take you through what you need to fill in if you are filing jointly.
Here is an infographic that indicates what items need to be filled:
