In the United States, tax returns are filed with the Internal Revenue Service (IRS) or with the state or local tax collection agency (Massachusetts Department of Revenue, for example) containing information used to calculate taxes. Tax returns are generally prepared using forms prescribed by the IRS or other relevant authority.
In the U.S., individuals use variations of the Internal Revenue System’s Form 1040. Corporations will use Form 1120 and partnerships will use Form 1065 to file their annual returns. Reporting of investment income is through Form 1099. Application for automatic extension of time to file U.S. individual income tax return Is through Form 4868.
Typically, a tax return begins with the taxpayer providing personal information, which includes their filing status, and dependent information.