W 2
This is a tax form an employer sends you showing how much you were paid and how much tax was held back during the year. You use it when you file your return.
A definition says what a thing is; it never says whether it fits you. The guides explain how it works and name the professional who confirms it for a particular person. The No Advice Disclosure.
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A model reads this page and answers from it. It will say when the answer is not on the page. Education, not personalized advice.