No matter what country or state returns need to be completed, having access to important records makes the filing easier and more accurate. United States returns require documentation on income and expense that substantiates items on the return.

Documenting Income for the Tax Return

Employees will be issued a W-2 form, the Wage and Tax Statement. This form contains the earned income, as well as taxes deducted. Other important pieces of information on the W-2 are retirement and dependent care deductions.