The New York Main Form (UCS-840) is an official form used by the New York State Department of Taxation and Finance for reporting and paying New York State personal income taxes. It is a paper form that can be completed and mailed in, or completed and submitted electronically. The form is divided into four main sections: employer information, income, deductions, and credits. There are three different versions of the form, depending on the individual’s filing status: single, married filing jointly, and married filing separately. The form also includes instructions and information on what types of income to report, deductions that can be taken, and credits that can be applied.