Form W-2 is a tax form employers use to report your wage and tax information. They'll give you this form if you earned $600 or more, regardless of your relationship with the employer. It shows income, Social Security, and Medicare taxes withheld from your earnings. If you claimed no more than one withholding allowance on your Form W-4, it displays the withheld income tax. This form is essential for accurately reporting your earnings and taxes to the IRS.