IRS tax forms are used for taxpayers and tax-exempt organizations to report financial information to the Internal Revenue Service of the United States. They are used to report income, calculate taxes to be paid to the federal government of the United States, and disclose other information as required by the Internal Revenue Code. There are over 800 various forms and schedules. The best known of these is form 1040, used by individuals. Individual forms 1040, form 1040 U.S. individual income tax return, is one of three forms used for personal federal income tax returns filed with the IRS. The first form 1040 was published for use for the tax years 1913, 1914, and 1915. For 1916, form 1040 was converted to an annual form. Initially, the IRS mailed tax booklets to all households. As alternative delivery methods increased in popularity, the IRS sent fewer packets by mail. In 2009, this practice was discontinued. Income tax returns for individual calendar year taxpayers are due by April 15th of the next year, except when April 15th falls on a Saturday, Sunday, or a legal holiday. In those circumstances, the returns are due on the next business day. An automatic extension until October 15th to file Form 1040 can be obtained by filing Form 4868. Form 1040 consists of two full pages, not counting attachments. The first page collects information about the taxpayer's dependents, income items, and adjustments to income. The second page calculates the allowable deductions and credits, tax due given the income figure, and applies funds already withheld from wages or estimated payments made towards the tax liability. At the top of the first page is the presidential election campaign fund checkoff, which allows you to designate that the federal government give three dollars of the tax it receives to the...