回复：w2 or w4? please help!

At the beginning of your employment, your employer gives you a w-4 form to file for the purpose of computing the tax deduction from your salary. You may change the deduction any time during your employment by refiling your w-4 form. At the end of every year, your employer gives you a w-2 form for your tax returns. The w-2 form should be received in January every year.